Diagnostic value of low dose dobutamine stress in addition to the assessment of late enhancement for the prediction of functional recovery (original) (raw)

2003, Journal of The American College of Cardiology

A total of 42 subjects, including 6 volunteers and 34 patients suspected of coronary artery disease (CAD), were recruited prospectively to measure scan time, breathhold frequency, anatomic coverage, image quality, and detection of CAD. The anatomic coverage was based on the number of coronary segments visualized using the 9 coronary segment model. Image quality of each coronary segment (gradel-4: l=excellent; P=good. 3=fair, and 4=nowdiagnostic) was assessed based on both vessel border contiguity and artifact. Three investigators blindly reviewed the MR images for CAD. Their findings were compared to the coronary angiograms reviewed by interventional cardiologists. Using a modern PC (AMD) as a sequencer, the aRT generated an arbitrary waveform to switch from real-time localization (RT) to cardiac gated high-resolution (HR)