- Workshop presentation
- Open Access
The clinical utility of contrast enhanced whole-heart coronary MRA with 32-channel coil at 3T scanner in the era of 64 and more-slice CT
© Wu et al; licensee BioMed Central Ltd. 2013
- Published: 30 January 2013
- Congenital Heart Disease
- Kawasaki Disease
- Gadobenate Dimeglumine
- Complex Congenital Heart Disease
- Anomalous Coronary Artery
Sixty-four and more-slice cardiac CT provides rapid and high quality coronary CT angiography for the majority of clinical needs of non-invasive evaluation of coronary artery. However, the recent advance of whole-heart coronary MRA has been able to provide high-quality of coronary MRA and also myocardial image in a reasonable scan time. The purpose of this study was to evaluate the clinical indication and the feasibility of coronary MRA with 32-channel coil at 3T scanner.
Acquisition of 3.0T coronary MRA data was done by using 32-channel torso coil (Skyra, Siemens AG Healthcare, Erlangen, Germany). An ECG-triggered, respiratory navigator-gated, inversion-recovery prepared, segmented gradient-echo sequence was used for image acquisition with an acceleration factor of 3 in the phase-encoding direction using generalized auto calibrating partially parallel acquisitions reconstruction. Slow infusion of 0.15 mmol/kg body weight of Gadobenate dimeglumine (MultiHance; Bracco Imaging SpA, Milan, Italy) at a rate of 0.2 mL/s was given. The image quality of coronary MRA was scored as 4, excellent; 3, good, confident for diagnosis; 2. fair, suboptimal for diagnosis; and 1, poor, not diagnostic. The clinical impact of the examination were classified as high, major revision; medium, minor revision or confirmation and low, non contribution to clinical diagnosis and management.
Contrast enhanced whole-heart coronary MRA with 32-channel coil at 3T scanner has high clinical feasibility for appropriate clinical indications.
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