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.