Artifact-Free High-Resolution Myocardial Perfusion MRI in Subjects With Abnormal Nuclear Myocardial Perfusion Studies
Coronary Artery Disease, CAD

About this trial
This is an interventional basic science trial for Coronary Artery Disease focused on measuring MRI, Magnetic Resonance Imaging, myocardial perfusion, myocardial perfusion imaging, Novel MRI Techniques
Eligibility Criteria
Inclusion Criteria:
- Clinically indicated nuclear myocardial perfusion (PET/SPECT) study with mild to moderate ischemia or prior myocardial infarction AND a visual scan interpretation of definitely abnormal AND no intervening revascularization since the prior study; or,
- Clinically stable individuals with suspected or known coronary artery disease on the basis of coronary angiography.
Exclusion Criteria:
- < 18 years of age
- Hypotension (systolic blood pressure <100 mm Hg)
- Significant non-coronary cardiac disease (e.g. severe valvular abnormality, significant cardiomyopathy, etc.)
- Persons unable to successfully pass MRI health and safety screening
- Persons whose renal function test does not meet CSMC standard of care MRI contrast protocol requirements (GFR <45 ml/min based on serum creatinine, age, gender, and ethnicity).
- Subjects with contraindications to or intolerance of regadenoson.
- Persons with an allergy to gadolinium-based contrast.
- Persons with a history of kidney or liver disease.
Sites / Locations
- Cedars-Sinai Medical Center
Arms of the Study
Arm 1
Other
Suspected coronary artery disease (CAD)
This pilot study has a single arm/group of subjects with suspected CAD based on the following inclusion criteria: Prior nuclear myocardial perfusion scan (PET/SPECT) with a visual interpretation of definitely abnormal, or prior myocardial infarction; or, Clinically stable individuals with suspected coronary artery disease on the basis of coronary angiography. The study protocol involved only a myocardial perfusion MRI procedure for detection of ischemia (perfusion deficits) using an improved protocol with the administration of a vasodilator drug (Regadenoson/Lexiscan®) and gadolinium-based MRI contrast agent (Optimark®; dose: 0.2 mmol/kg). Lexiscan® was used off-label as a vasodilator drug during the MRI scan (0.4 mg/5mL) supplied by the manufacturer, Astellas Pharma U.S.