Myocardial Stress Perfusion Imaging With Dual Source 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: NCT00853671
Recruitment Status : Unknown
Verified April 2010 by Massachusetts General Hospital.
Recruitment status was:  Recruiting
First Posted : March 2, 2009
Last Update Posted : May 4, 2010
Astellas Pharma Inc
Information provided by:
Massachusetts General Hospital

Brief Summary:
The investigators propose a novel technique using dual source multidetector computed tomography (DSCT) where information on both coronary anatomy and myocardial perfusion is obtained in a single scan. The investigators hypothesize that a coronary CTA protocol can be devised to obtain resting myocardial perfusion, myocardial perfusion after stress, and coronary anatomy. Hence, one diagnostic test will be able to detect the presence of coronary plaque as well as assess the functional significance of a stenosis.

Condition or disease Intervention/treatment Phase
Coronary Artery Disease Radiation: Cardiac CT Not Applicable

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 60 participants
Allocation: Non-Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Myocardial Stress Perfusion Imaging With Dual Source CT
Study Start Date : April 2008
Estimated Primary Completion Date : December 2009
Estimated Study Completion Date : December 2010

Intervention Details:
  • Radiation: Cardiac CT
    Adenosine- continuous infusion at 140mcg/ kg/ min for 2.5 min; IV contrast- total dose of 150cc; CT radiation - effective radiation dose of approximately 13mSv (tube voltage 120kV, tube current 340mAs for one retrospectively gated cardiac CT with tube current modulation and two prospectively gated cardiac CTs on a Dual Source scanner)

Primary Outcome Measures :
  1. To evaluate the diagnostic accuracy of Dual-Source Multi-Detector Computed Tomography (DSCT) in simultaneously detecting coronary stenosis and myocardial perfusion defects during pharmacological stress as compared to invasive angiography. [ Time Frame: 18 months ]

Secondary Outcome Measures :
  1. To compare areas of inducible ischemia and fixed defects between stress DSCT, Dual energy DSCT, and SPECT. [ Time Frame: 18 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   40 Years to 90 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • A prior adenosine or exercise stress SPECT exam with high likelihood of being referred to the cardiac catheterization laboratory for invasive angiogram
  • Age > 40 years old
  • Able to comprehend and sign the consent form.

Exclusion Criteria:

  • Acute coronary syndromes (unstable angina, non-ST elevation myocardial infarction, ST elevation myocardial infarction)
  • Unstable clinical conditions (i.e. hemodynamic instability, arrhythmias)
  • Premenopausal women who have a positive pregnancy test.
  • Serum Creatinine level ≥1.5 mg/dl as an indicator of renal insufficiency.
  • Known allergy to iodinated contrast agents
  • Atrial fibrillation
  • Asthma
  • Critical aortic stenosis
  • Systolic blood pressure < 90 mmHg
  • Advanced heart block

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): NCT00853671

Contact: Ricardo C Cury, MD 305-9877421
Contact: Brian Ghoshhajra, MD 617-4168506 BGHOSHHAJRA@PARTNERS.ORG

United States, Massachusetts
Massachusetts General Hospital Recruiting
Boston, Massachusetts, United States, 02114
Contact: Ricardo Cury, MD    305-987-7412   
Contact: Brian Ghoshhajra, MD    617-4168506    BGHOSHHAJRA@PARTNERS.ORG   
Sponsors and Collaborators
Massachusetts General Hospital
Astellas Pharma Inc
Principal Investigator: Ricardo C Cury, MD Massachusetts General Hospital, Baptist Hospital, Miami
Study Director: Brian Ghoshhajra, MD Massachusetts General Hospital

Publications of Results:
Responsible Party: Ricardo Cury, Massachusetts General Hospital Identifier: NCT00853671     History of Changes
Other Study ID Numbers: DSCTSTRESS
First Posted: March 2, 2009    Key Record Dates
Last Update Posted: May 4, 2010
Last Verified: April 2010

Keywords provided by Massachusetts General Hospital:
Coronary Artery Disease
Multidetector Computed Tomography
Myocardial Perfusion Imaging

Additional relevant MeSH terms:
Coronary Artery Disease
Myocardial Ischemia
Coronary Disease
Heart Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases
Vascular Diseases