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Assessment of Coronary Artery Disease by Hybrid PET/CT

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00320931
Recruitment Status : Completed
First Posted : May 3, 2006
Last Update Posted : April 17, 2008
Astellas Pharma Inc
Information provided by:
University of Maryland, Baltimore

Brief Summary:

There have been many advances in the test used to look for heart disease. An example of this newer technology is the Multislice CT scan (MSCT) and Positron Emission Tomography (PET) scans.

The use of this type of combined scan may show early coronary artery disease or the degree of damaged heart muscle form a heart attack with a single exam. It may help doctors to know who might benefit from heart surgery or angioplasty to increase the blood flow to the heart. This type of detailed images has previously been available only through cardiac catheterization.

Condition or disease Intervention/treatment Phase
Coronary Artery Disease Device: PET/CT Phase 4

Detailed Description:
Advances in Non-invasive Multislice CT Imaging: Multislice CT (MSCT) and PET imaging are becoming more widely available and more useful in cardiac assessment. MSCT provides quantification of coronary calcium as well as information about the structures of the coronary vessel walls and atherosclerotic plaques. Multiple studies have demonstrated that MSCT provides information on coronary artery stenosis comparable to that obtained from invasive coronary angiography. PET imaging provides functional data via the measurement of coronary flow reserve (CFR). CFR is a quantitative measure of the increase in coronary blood flow in response to vasodilation; normal coronary flow is able to augment by three- to four-fold; diseased coronary arteries show less ability to increase flow, i.e. less CFR. Assessment of CFR yields functional information about the significance of coronary disease and is often used clinically in conjunction with anatomic imaging to identify early atherosclerosis. There is no current data evaluating the incremental value of hybrid PET/CT assessment of CFR and coronary anatomy in relation to SPECT studies in the clinical setting.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Assessment of Coronary Flow Reserve and CT Angiography By Hybrid PET/CT: Relation to Clinically Indicated SPECT Studies
Study Start Date : March 2006
Actual Primary Completion Date : April 2008
Actual Study Completion Date : April 2008

Resource links provided by the National Library of Medicine

Primary Outcome Measures :
  1. Comparison of Rubidium PET and SPECT parameters (ejection fraction, left ventricular end diastolic and end diastolic function volumes)
  2. Comparison of wall motion scoring on Rubidium PET and SPECT
  3. Comparison of magnitude of defects on Rubidium PET, SPECT and CT angiography

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subject must be 18 years of age or older and able to give informed consent.
  • Scheduled for clinically indicated gated Adenoscan SPECT studies at the University of Maryland Medical Center or Baltimore VA Center
  • Documentation from participant's health care provider indicating no objection to subject's participation in study.

Exclusion Criteria:

  • Hepatic; thyroid or renal disease (creatinine >1.5 or GFR < 60mL/min)
  • Women of childbearing age not using medically acceptable form of contraception, pregnant or breast-feeding
  • Contrast allergy
  • Inability to cooperate with imaging

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00320931

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United States, Maryland
University of Maryland Medical Center
Baltimore, Maryland, United States, 21201
Sponsors and Collaborators
University of Maryland, College Park
Astellas Pharma Inc
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Principal Investigator: Vasken Dilsizian, M.D. University of Maryland, College Park

Layout table for additonal information Identifier: NCT00320931    
Other Study ID Numbers: H-27314 (LR-05-003)
First Posted: May 3, 2006    Key Record Dates
Last Update Posted: April 17, 2008
Last Verified: April 2008
Keywords provided by University of Maryland, Baltimore:
Coronary artery disease
PET CT scan
Stress test
Additional relevant MeSH terms:
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Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases