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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/OrganizationBackgroundAndBasisOfPresentation" id="OrganizationBackgroundAndBasisOfPresentation"> |
| <link:definition> 00000006 - Disclosure - 1. ORGANIZATION, BACKGROUND, AND BASIS OF PRESENTATION </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
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| <link:definition> 00000007 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/FairValueOfFinancialInstruments" id="FairValueOfFinancialInstruments"> |
| <link:definition> 00000008 - Disclosure - 3. FAIR VALUE OF FINANCIAL INSTRUMENTS </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/StockholdersDeficit" id="StockholdersDeficit"> |
| <link:definition> 00000009 - Disclosure - 4. STOCKHOLDERS' DEFICIT </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/StockOptions" id="StockOptions"> |
| <link:definition> 00000010 - Disclosure - 5. STOCK OPTIONS </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/LitigationAndClaims" id="LitigationAndClaims"> |
| <link:definition> 00000011 - Disclosure - 6. LITIGATION AND CLAIMS </link:definition> |
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| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies"> |
| <link:definition> 00000012 - Disclosure - 7. COMMITMENTS AND CONTINGENCIES </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/NotesPayable" id="NotesPayable"> |
| <link:definition> 00000013 - Disclosure - 8. NOTES PAYABLE </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/Short-termConvertibleDebt" id="Short-termConvertibleDebt"> |
| <link:definition> 00000014 - Disclosure - 9. SHORT-TERM CONVERTIBLE DEBT </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/ConvertibleDebtInDefault" id="ConvertibleDebtInDefault"> |
| <link:definition> 00000015 - Disclosure - 10. CONVERTIBLE DEBT IN DEFAULT </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/IncomeLossPerCommonShare" id="IncomeLossPerCommonShare"> |
| <link:definition> 00000016 - Disclosure - 11. INCOME (LOSS) PER COMMON SHARE </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/SubsequentEvents" id="SubsequentEvents"> |
| <link:definition> 00000017 - Disclosure - 12. SUBSEQUENT EVENTS </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesPolicies" id="SignificantAccountingPoliciesPolicies"> |
| <link:definition> 00000018 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Policies) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesTables" id="SignificantAccountingPoliciesTables"> |
| <link:definition> 00000019 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/FairValueOfFinancialInstrumentsTables" id="FairValueOfFinancialInstrumentsTables"> |
| <link:definition> 00000020 - Disclosure - 3. FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/StockholdersDeficitTables" id="StockholdersDeficitTables"> |
| <link:definition> 00000021 - Disclosure - 4. STOCKHOLDERS' DEFICIT (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/CommitmentsAndContingenciesTables" id="CommitmentsAndContingenciesTables"> |
| <link:definition> 00000022 - Disclosure - 7. COMMITMENTS AND CONTINGENCIES (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/NotesPayableTables" id="NotesPayableTables"> |
| <link:definition> 00000023 - Disclosure - 8. NOTES PAYABLE (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/Short-termConvertibleDebtTables" id="Short-termConvertibleDebtTables"> |
| <link:definition> 00000024 - Disclosure - 9. SHORT-TERM CONVERTIBLE DEBT (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/ConvertibleDebtInDefaultTables" id="ConvertibleDebtInDefaultTables"> |
| <link:definition> 00000025 - Disclosure - 10. CONVERTIBLE DEBT IN DEFAULT (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/IncomeLossPerCommonShareTables" id="IncomeLossPerCommonShareTables"> |
| <link:definition> 00000026 - Disclosure - 11. INCOME (LOSS) PER COMMON SHARE (Tables) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/OrganizationBackgroundAndBasisOfPresentationDetailsNarrative" id="OrganizationBackgroundAndBasisOfPresentationDetailsNarrative"> |
| <link:definition> 00000027 - Disclosure - 1. ORGANIZATION, BACKGROUND, AND BASIS OF PRESENTATION (Details Narrative) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesDetails" id="SignificantAccountingPoliciesDetails"> |
| <link:definition> 00000028 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesDetails1" id="SignificantAccountingPoliciesDetails1"> |
| <link:definition> 00000029 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details 1) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesDetails2" id="SignificantAccountingPoliciesDetails2"> |
| <link:definition> 00000030 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details 2) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesDetails3" id="SignificantAccountingPoliciesDetails3"> |
| <link:definition> 00000031 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details 3) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/SignificantAccountingPoliciesDetailsNarrative" id="SignificantAccountingPoliciesDetailsNarrative"> |
| <link:definition> 00000032 - Disclosure - 2. SIGNIFICANT ACCOUNTING POLICIES (Details Narrative) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/FairValueOfFinancialInstrumentsDetails" id="FairValueOfFinancialInstrumentsDetails"> |
| <link:definition> 00000033 - Disclosure - 3. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/FairValueOfFinancialInstrumentsDetails1" id="FairValueOfFinancialInstrumentsDetails1"> |
| <link:definition> 00000034 - Disclosure - 3. FAIR VALUE OF FINANCIAL INSTRUMENTS (Details 1) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/StockholdersDeficitDetails" id="StockholdersDeficitDetails"> |
| <link:definition> 00000035 - Disclosure - 4. STOCKHOLDERS' DEFICIT (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/StockholdersDeficitDetails1" id="StockholdersDeficitDetails1"> |
| <link:definition> 00000036 - Disclosure - 4. STOCKHOLDERS' DEFICIT (Details 1) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/StockholdersDeficitDetails2" id="StockholdersDeficitDetails2"> |
| <link:definition> 00000037 - Disclosure - 4. STOCKHOLDERS' DEFICIT (Details 2) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/CommitmentsAndContingenciesDetails" id="CommitmentsAndContingenciesDetails"> |
| <link:definition> 00000038 - Disclosure - 7. COMMITMENTS AND CONTINGENCIES (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/NotesPayableDetails" id="NotesPayableDetails"> |
| <link:definition> 00000039 - Disclosure - 8. NOTES PAYABLE (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/NotesPayableDetails1" id="NotesPayableDetails1"> |
| <link:definition> 00000040 - Disclosure - 8. NOTES PAYABLE (Details 1) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/NotesPayableDetails2" id="NotesPayableDetails2"> |
| <link:definition> 00000041 - Disclosure - 8. NOTES PAYABLE (Details 2) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:roleType roleURI="http://guidedinc.com/role/Short-termConvertibleDebtDetails" id="Short-termConvertibleDebtDetails"> |
| <link:definition> 00000042 - Disclosure - 9. SHORT-TERM CONVERTIBLE DEBT (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/ConvertibleDebtInDefaultDetails" id="ConvertibleDebtInDefaultDetails"> |
| <link:definition> 00000043 - Disclosure - 10. CONVERTIBLE DEBT IN DEFAULT (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
| </link:roleType> |
| | | <link:roleType roleURI="http://guidedinc.com/role/IncomeLossPerCommonShareDetails" id="IncomeLossPerCommonShareDetails"> |
| <link:definition> 00000044 - Disclosure - 11. INCOME (LOSS) PER COMMON SHARE (Details) </link:definition> |
| <link:usedOn> link:presentationLink </link:usedOn> |
| <link:usedOn> link:calculationLink </link:usedOn> |
| <link:usedOn> link:definitionLink </link:usedOn> |
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| | | <link:linkbaseRef xlink:type="simple" xlink:href="gthp-20190930_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links"/> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="gthp-20190930_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links"/> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="gthp-20190930_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links"/> |
| | | <link:linkbaseRef xlink:type="simple" xlink:href="gthp-20190930_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links"/> |
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| <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/> |
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| <import namespace="http://xbrl.sec.gov/country/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd"/> |
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| <element id="GTHP_ShorttermNotesPayable" name="ShorttermNotesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_NotePayableInDefault" name="NotePayableInDefault" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AccruedWarrantyCurrentAndNoncurrent" name="AccruedWarrantyCurrentAndNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_NotesPayableInDefault" name="NotesPayableInDefault" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ConvertibleNotesPayableInDefault" name="ConvertibleNotesPayableInDefault" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AccountsPayableRelatedParties" name="AccountsPayableRelatedParties" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_NotesPayableInDefaultRelatedParty" name="NotesPayableInDefaultRelatedParty" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ChangeInFairValueOfWarrants" name="ChangeInFairValueOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ProceedsFromIssuanceOfCommonStockOther" name="ProceedsFromIssuanceOfCommonStockOther" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_CapitalContributionsInConnectionWithDebtForgiveness" name="CapitalContributionsInConnectionWithDebtForgiveness" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AccruedExpensesForgiven" name="AccruedExpensesForgiven" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ConvertibleDebtDisclosureTextBlock" name="ConvertibleDebtDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DebtDefaultDisclosureTextBlock" name="DebtDefaultDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_OtherAssetsPolicyTextBlock" name="OtherAssetsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_PatentCostsPolicyTextBlock" name="PatentCostsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DeferredRevenuePolicyTextBlock" name="DeferredRevenuePolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants" name="Warrants" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_BeneficialConversionFeaturesOfConvertibleSecuritiesPolicyTextBlock" name="BeneficialConversionFeaturesOfConvertibleSecuritiesPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_SummaryOfChangesToLevel3Instruments" name="SummaryOfChangesToLevel3Instruments" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ScheduleCommonStockIssuedTableTextblock" name="ScheduleCommonStockIssuedTableTextblock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ScheduleSharesReservedForWarrantsTableTextblock" name="ScheduleSharesReservedForWarrantsTableTextblock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ScheduleOfForgivenessOfDebtTableTextBlock" name="ScheduleOfForgivenessOfDebtTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ScheduleOfNotesPayableInDefaultTableTextBlock" name="ScheduleOfNotesPayableInDefaultTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ScheduleOfConvertibleNotesPayableTableTextBlock" name="ScheduleOfConvertibleNotesPayableTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ScheduleOfConvertibleNotesInDefaultTableTextBlock" name="ScheduleOfConvertibleNotesInDefaultTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WorkingCapital" name="WorkingCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_PatentCosts" name="PatentCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ConvertibleDebtConversions" name="ConvertibleDebtConversions" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantExpirationDate" name="WarrantExpirationDate" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_InterestPortionOfMinimumLeasePayments" name="InterestPortionOfMinimumLeasePayments" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_InterestOnCompensation" name="InterestOnCompensation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_LoansToCompany" name="LoansToCompany" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_InterestOnLoans" name="InterestOnLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_PublicOfferingWarrantsMember" name="PublicOfferingWarrantsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantsSeriesBMember" name="WarrantsSeriesBMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantsSeriesCMember" name="WarrantsSeriesCMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DistributorDebtMember" name="DistributorDebtMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_SeriesCConvertiblePreferredStockMember" name="SeriesCConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_SeriesC1ConvertiblePreferredStockMember" name="SeriesC1ConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_SeriesC2ConvertiblePreferredStockMember" name="SeriesC2ConvertiblePreferredStockMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DevicesMember" name="DevicesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DisposablesMember" name="DisposablesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_OtherRevenueMember" name="OtherRevenueMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantyMember" name="WarrantyMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantsDistributorDebtMember" name="WarrantsDistributorDebtMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantsShortTermLoansMember" name="WarrantsShortTermLoansMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_WarrantsSeniorSecuredDebtMember" name="WarrantsSeniorSecuredDebtMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants1Member" name="Warrants1Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants2Member" name="Warrants2Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants3Member" name="Warrants3Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants4Member" name="Warrants4Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants5Member" name="Warrants5Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants6Member" name="Warrants6Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants7Member" name="Warrants7Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants8Member" name="Warrants8Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrant9Member" name="Warrant9Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrant10Member" name="Warrant10Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrant11Member" name="Warrant11Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants12Member" name="Warrants12Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants13Member" name="Warrants13Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants14Member" name="Warrants14Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants15Member" name="Warrants15Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants16Member" name="Warrants16Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants17Member" name="Warrants17Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants18Member" name="Warrants18Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants19Member" name="Warrants19Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants20Member" name="Warrants20Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants21Member" name="Warrants21Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants22Member" name="Warrants22Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants23Member" name="Warrants23Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants24Member" name="Warrants24Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants25Member" name="Warrants25Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants26Member" name="Warrants26Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants27Member" name="Warrants27Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants28Member" name="Warrants28Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants29Member" name="Warrants29Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants30Member" name="Warrants30Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants31Member" name="Warrants31Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants32Member" name="Warrants32Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants33Member" name="Warrants33Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants34Member" name="Warrants34Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants35Member" name="Warrants35Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants36Member" name="Warrants36Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants37Member" name="Warrants37Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants38Member" name="Warrants38Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants39Member" name="Warrants39Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants40Member" name="Warrants40Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_Warrants41Member" name="Warrants41Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DrCartwrightMember" name="DrCartwrightMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DrFaupelMember" name="DrFaupelMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DrImhoffMember" name="DrImhoffMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MsRosenstockMember" name="MsRosenstockMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrFowlerMember" name="MrFowlerMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrMermelsteinMember" name="MrMermelsteinMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_GHSMember" name="GHSMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_GPBMember" name="GPBMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AquariusMember" name="AquariusMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrBlumbergMember" name="MrBlumbergMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrJamesMember" name="MrJamesMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrMaloofMember" name="MrMaloofMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrCaseMember" name="MrCaseMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrMamulaMember" name="MrMamulaMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrGouldMember" name="MrGouldMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_K2Member" name="K2Member" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_EverestMember" name="EverestMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_PremiumFinanceMember" name="PremiumFinanceMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ShenghuoMember" name="ShenghuoMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_EagleMember" name="EagleMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DebtCreditAmortizedMember" name="DebtCreditAmortizedMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DebtDiscountRelatedToBeneficialConversionMember" name="DebtDiscountRelatedToBeneficialConversionMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AuctusMember" name="AuctusMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DebtDiscountToBeAmortizedMember" name="DebtDiscountToBeAmortizedMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AccilentMember" name="AccilentMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_MrGrimmMember" name="MrGrimmMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AdarMember" name="AdarMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DebtWarrantsForLoanAgreementsMember" name="DebtWarrantsForLoanAgreementsMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_TotalMember" name="TotalMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_AuctusOtherMember" name="AuctusOtherMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_ConvertibleNotesInDefaultMember" name="ConvertibleNotesInDefaultMember" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/> |
| <element id="GTHP_StockholdersEquityDetails3Abstract" name="StockholdersEquityDetails3Abstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item"/> |
| </schema> |