Nctid:
NCT00001631
Payload:
{"hasResults"=>false, "derivedSection"=>{"miscInfoModule"=>{"versionHolder"=>"2024-12-04"}, "conditionBrowseModule"=>{"meshes"=>[{"id"=>"D009202", "term"=>"Cardiomyopathies"}, {"id"=>"D003327", "term"=>"Coronary Disease"}, {"id"=>"D017202", "term"=>"Myocardial Ischemia"}, {"id"=>"D002312", "term"=>"Cardiomyopathy, Hypertrophic"}, {"id"=>"D007511", "term"=>"Ischemia"}, {"id"=>"D006984", "term"=>"Hypertrophy"}], "ancestors"=>[{"id"=>"D010335", "term"=>"Pathologic Processes"}, {"id"=>"D006331", "term"=>"Heart Diseases"}, {"id"=>"D002318", "term"=>"Cardiovascular Diseases"}, {"id"=>"D020763", "term"=>"Pathological Conditions, Anatomical"}, {"id"=>"D014652", "term"=>"Vascular Diseases"}, {"id"=>"D001020", "term"=>"Aortic Stenosis, Subvalvular"}, {"id"=>"D001024", "term"=>"Aortic Valve Stenosis"}, {"id"=>"D000082862", "term"=>"Aortic Valve Disease"}, {"id"=>"D006349", "term"=>"Heart Valve Diseases"}], "browseLeaves"=>[{"id"=>"M6546", "name"=>"Coronary Artery Disease", "relevance"=>"LOW"}, {"id"=>"M19506", "name"=>"Myocardial Ischemia", "asFound"=>"Myocardial Ischemia", "relevance"=>"HIGH"}, {"id"=>"M6549", "name"=>"Coronary Disease", "asFound"=>"Coronary Disease", "relevance"=>"HIGH"}, {"id"=>"M10543", "name"=>"Ischemia", "asFound"=>"Ischemia", "relevance"=>"HIGH"}, {"id"=>"M12154", "name"=>"Cardiomyopathies", "asFound"=>"Cardiomyopathy", "relevance"=>"HIGH"}, {"id"=>"M10035", "name"=>"Hypertrophy", "asFound"=>"Hypertrophic", "relevance"=>"HIGH"}, {"id"=>"M5568", "name"=>"Cardiomyopathy, Hypertrophic", "asFound"=>"Hypertrophic Cardiomyopathy", "relevance"=>"HIGH"}, {"id"=>"M9419", "name"=>"Heart Diseases", "relevance"=>"LOW"}, {"id"=>"M22519", "name"=>"Pathological Conditions, Anatomical", "relevance"=>"LOW"}, {"id"=>"M17400", "name"=>"Vascular Diseases", "relevance"=>"LOW"}, {"id"=>"M6475", "name"=>"Constriction, Pathologic", "relevance"=>"LOW"}, {"id"=>"M4340", "name"=>"Aortic Valve Stenosis", "relevance"=>"LOW"}, {"id"=>"M2379", "name"=>"Aortic Valve Disease", "relevance"=>"LOW"}, {"id"=>"M9437", "name"=>"Heart Valve Diseases", "relevance"=>"LOW"}, {"id"=>"T449", "name"=>"Aortic Valve Stenosis", "relevance"=>"LOW"}], "browseBranches"=>[{"name"=>"Heart and Blood Diseases", "abbrev"=>"BC14"}, {"name"=>"All Conditions", "abbrev"=>"All"}, {"name"=>"Symptoms and General Pathology", "abbrev"=>"BC23"}, {"name"=>"Rare Diseases", "abbrev"=>"Rare"}]}, "interventionBrowseModule"=>{"browseLeaves"=>[{"id"=>"M7358", "name"=>"Dipyridamole", "relevance"=>"LOW"}], "browseBranches"=>[{"name"=>"Vasodilator Agents", "abbrev"=>"VaDiAg"}, {"name"=>"Platelet Aggregation Inhibitors", "abbrev"=>"PlAggInh"}, {"name"=>"All Drugs and Chemicals", "abbrev"=>"All"}]}}, "protocolSection"=>{"designModule"=>{"phases"=>["PHASE2"], "studyType"=>"INTERVENTIONAL", "designInfo"=>{"primaryPurpose"=>"TREATMENT"}, "enrollmentInfo"=>{"count"=>249}}, "statusModule"=>{"overallStatus"=>"COMPLETED", "startDateStruct"=>{"date"=>"1997-08"}, "expandedAccessInfo"=>{"hasExpandedAccess"=>false}, "statusVerifiedDate"=>"2003-01", "completionDateStruct"=>{"date"=>"2003-01"}, "lastUpdateSubmitDate"=>"2008-03-03", "studyFirstSubmitDate"=>"1999-11-03", "studyFirstSubmitQcDate"=>"1999-11-03", "lastUpdatePostDateStruct"=>{"date"=>"2008-03-04", "type"=>"ESTIMATED"}, "studyFirstPostDateStruct"=>{"date"=>"1999-11-04", "type"=>"ESTIMATED"}}, "conditionsModule"=>{"keywords"=>["Gadolinium", "Ischemia", "Coronary Artery Disease", "Hypertrophic Cardiomyopathy", "Dipyridamole"], "conditions"=>["Coronary Disease", "Healthy", "Hypertrophic Cardiomyopathy", "Myocardial Ischemia"]}, "referencesModule"=>{"references"=>[{"pmid"=>"8464365", "type"=>"BACKGROUND", "citation"=>"Wilke N, Simm C, Zhang J, Ellermann J, Ya X, Merkle H, Path G, Ludemann H, Bache RJ, Ugurbil K. Contrast-enhanced first pass myocardial perfusion imaging: correlation between myocardial blood flow in dogs at rest and during hyperemia. Magn Reson Med. 1993 Apr;29(4):485-97. doi: 10.1002/mrm.1910290410."}, {"pmid"=>"8622587", "type"=>"BACKGROUND", "citation"=>"Matheijssen NA, Louwerenburg HW, van Rugge FP, Arens RP, Kauer B, de Roos A, van der Wall EE. Comparison of ultrafast dipyridamole magnetic resonance imaging with dipyridamole SestaMIBI SPECT for detection of perfusion abnormalities in patients with one-vessel coronary artery disease: assessment by quantitative model fitting. Magn Reson Med. 1996 Feb;35(2):221-8. doi: 10.1002/mrm.1910350214."}, {"pmid"=>"7815687", "type"=>"BACKGROUND", "citation"=>"Zaman M, Hashmi R, Niaz K, Ahmad A, Kamal S. Safety of pharmacological (intravenous dipyridamole) stress for Thallium-201 perfusion imaging in patients with coronary artery disease unable to exercise. J Pak Med Assoc. 1994 Oct;44(10):237-9."}]}, "descriptionModule"=>{"briefSummary"=>"Blood flows to areas of the heart providing oxygen and fuel to the pumping muscle. Occasionally the arteries providing the fuel can become blocked. This occurs in coronary artery disease.\n\nMagnetic resonance imaging (MRI) can be used to evaluate the blood flow to different areas of the heart muscle. In this study magnetic resonance imaging will be compared to other diagnostic tests (radionucleotide perfusion studies) capable of measuring blood flow to heart muscle.", "detailedDescription"=>"In this pilot study, magnetic resonance imaging (MRI) of myocardial enhancement during first passage of intravenously injected gadolinium contrast will be used to evaluate regional myocardial perfusion in patients with known or suspected coronary artery disease and hypertrophic cardiomyopathy. The MRI results will be compared with conventional radionuclide perfusion studies (ex. dipyridamole thallium). A clinically defined normal group will also be studied without radionuclide correlation."}, "eligibilityModule"=>{"sex"=>"ALL", "stdAges"=>["CHILD", "ADULT", "OLDER_ADULT"], "healthyVolunteers"=>true, "eligibilityCriteria"=>"INCLUSION CRITERIA:\n\nAges 18 to 80.\n\nEither sex.\n\nCapable of giving informed consent.\n\nGroup 1: Outpatients with known or suspected coronary artery disease with clinical indication for radionuclide perfusion imaging.\n\nGroup 2: Patients with non-obstructive hypertrophic cardiomyopathy with clinical indication for radionuclide perfusion imaging.\n\nGroup 3: Normal volunteers.\n\nPositive stress thallium or stress sestamibi (i.e., exercise, adenosine, dobutamine or dypiridamole) at the NIH.\n\nEXCLUSION CRITERIA:\n\nPregnancy.\n\nUnstable angina.\n\nUncontrolled hypertension (SBP greater than 185, DBP greater than 105).\n\nRecent myocardial infarction (less than 5 days).\n\n2nd or 3rd degree heart block by ECG.\n\nAsthma, emphysema, renal failure, acute medical illness (fever, pneumonia, etc.) or anemia (hct less than 30).\n\nCardiac pacemaker or implantable defibrillator, aneurysm clip, neural stimulator, any type of ear implant, metal in your eye, any implanted device (i.e. insulin pump, drug infusion device) or any metallic foreign body, shrapnel, or bullet."}, "identificationModule"=>{"nctId"=>"NCT00001631", "briefTitle"=>"Study of Blood Flow in Heart Muscle", "organization"=>{"class"=>"NIH", "fullName"=>"National Institutes of Health Clinical Center (CC)"}, "officialTitle"=>"Study of Myocardial Perfusion by MRI", "orgStudyIdInfo"=>{"id"=>"970177"}, "secondaryIdInfos"=>[{"id"=>"97-H-0177"}]}, "armsInterventionsModule"=>{"interventions"=>[{"name"=>"Magnetic resonance imaging", "type"=>"PROCEDURE"}]}, "contactsLocationsModule"=>{"locations"=>[{"zip"=>"20892", "city"=>"Bethesda", "state"=>"Maryland", "country"=>"United States", "facility"=>"National Heart, Lung and Blood Institute (NHLBI)", "geoPoint"=>{"lat"=>38.98067, "lon"=>-77.10026}}]}, "sponsorCollaboratorsModule"=>{"leadSponsor"=>{"name"=>"National Heart, Lung, and Blood Institute (NHLBI)", "class"=>"NIH"}}}}
