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Abstract #0661

Diagnostic Performance of Non-Contrast Whole-Heart Coronary Magnetic Resonance Angiography Combined with Black-Blood Arterial Wall Imaging in Patients with Suspected Coronary Artery Disease

Qinyi Dai1, Zhaoqi Zhang1, Yi He1, Wei Yu1, Biao Lu1, Zhanming Fan1, Jing An2, Lixin Jin3, Renate Jerecic3, Guobin Li4, Wolfgang Rehwald5, Debiao Li6

1Radiology, AnZhen Hospital, Beijing, China; 2Siemens Mindit Magnetic Resonance, Siemens Healthcare, MR Collaboration NE Asia; 3Siemens Limited China, Siemens Healthcare, MR Collaboration NE Asia; 4Siemens Mindit Magnetic Resonance Ltd.; 5Siemens Healthcare USA; 6Northwestern University, Chicago, IL, United States

The combined Whole-heart coronary MRA and black-blood-coronary-wall-imaging hasnt been reported to detect CAD yet. Continuous slices for wall imaging of 48 segments were positioned along the suspected lesions of WH CMRA. A positive diagnosis of CAD was made when stenosis 50% at least one of the techniques. 15/48 segments were diagnosed as CAD by x-ray angiography. The sensitivities of WH CMRA only and both techniques were (12/15) and (14/15), NPVs were (33/36) and (33/34), respectively. There was no difference in specificity or PPV. The combination of two techniques improves the diagnostic accuracy to detect CAD over WH CMRA alone.