3-T navigator parallel-imaging coronary MR angiography: targeted-volume versus whole-heart acquisition.
cross_sectional · Level IV
Where this comes from
- Record sourced from PubMed, PMID 18562722.
- Also identified by DOI 10.2214/AJR.07.2503 and PMC identifier 3641883.
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Abstract
The purpose of this study was to compare whole-heart acquisition with targeted-volume acquisition in 3-T navigator coronary MR angiography with parallel imaging. The right and left coronary arteries of 20 subjects were imaged with axial whole-heart acquisition and two oblique targeted-volume acquisitions. Both whole-heart and targeted-volume acquisitions were completed with similar navigator efficiencies ( approximately 50%) and depicted similar coronary artery diameters ( approximately 3 mm) (p >or= 0.06). The lengths of the coronary arteries were not significantly different (p = 0.07-0.45) for the whole-heart and targeted-volume approaches. Depiction of the sharper coronary arteries (p <or= 0.04) and overall image quality (p < 0.02) were better with the targeted-volume approach. For current 3-T navigator parallel-imaging coronary MR angiography, targeted-volume acquisition yields sharper coronary images than does whole-heart acquisition.
Medical subject headings
- Coronary Artery Disease
- Image Interpretation, Computer-Assisted
- Imaging, Three-Dimensional
- Myocardium