Head and Neck Imaging
Clinical Application Value of Dual-source CT Myocardial Perfusion Test in Coronary Intermediate Lesions*
Author：GAO LI, YUAN Xu-chun, HU Guo-ying,et al.
affiliation：Department of Radiology, Sun yetsen Cardiovascular Hospital, Shenzhen 518112, Guangdong Province, China
PDFAbstract
Objective To study the the clinical value of dual-source CT myocardial perfusion test in the evaluation of cononary intermediate lesions. Methods 33 cases (41 sites) of coronary intermediate lesions underwent dual-source CT coronary angiography and were confirmed by conventional coronary angiography and Fractional Flow Reserve(FFR) test within one week. According to FFR value, 41 intermediate lesions were divided into two groups: FFR<0.80 group and FFR≥0.80 group. Dual-source CT myocardial perfusion test of all the cases was performed according to the standard A(≥2 segments myocardium involved) and standard B(≥1 segment myocardium involved). Results There were statistically significant differences in dual-source CT myocardial perfusion between two groups with standard A(χ2 =11.303, P=0.001) and standard B(χ2 =12.812, P=0.000). ROC curve analysis indicated that both criteria (standard A and standard B) were statistically significant for myocardial perfusion test (AUCA=0.734, P=0.017, AUCB=0.798, P=0.002) and standard B had higher diagnostic efficacy. Conclusion Myocardial perfusion test could be helpful for Dual-source CT in "one-stop" evaluation of coronary intermediate lesions.
【Keyword】Coronary Intermediate Lesions; Fractional Flow Reserve; Myocardial Perfusion; Dual-source CT
【Chart number】R542.2
【Document Identification Number】A
【DOI】10.3969/j.issn.1672- 5131.2018.04.023
Chinese journal of CT and MRI
th16Volume， th 4 Issue
2018Year04Month
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