Value of color Doppler flow imaging in diagnosis of mesenteric vessel ischemia lesions

HUA Xian-ping; WANG Xian-ming; ZHOU Cong; HUANG Nan-qing; ZENG Xian-tao

doi:10.3969/j.issn.1674-4055.2017.03.09

Abstract：Objective To discuss the value of color Doppler flow imaging (CDFI) in diagnosis of mesenteric vessel ischemia lesions.Methods The patients with suspected vascular abdominal pain (n=113) were given examinations of CDFI and multi-slice spiral computed tomography angiography (CTA), and the examination content included plaque, dissection and thrombus in arterial lumen for observing the characteristics of CDFI in arterial and nervous lumens. The peak systolic velocity (PSV) was detected in stenotic site, and spectrum signature of distal flow was observed. The sensitivity and specificity of CDFI, and Kappa value between CDFI and CTA were calculated by using SPSS 13.0 software, and truth and reliability of CDFI were reviewed.Results There were 24 patients with positive outcomes of CTA in definite diagnosis of mesenteric vessel ischemia lesions, and 89 with negative outcomes. There were 23 patients with positive CDFI outcomes and 90 with negative CDFI outcomes, including 13 with stenosis of superior mesenteric artery (SMA), 5 with thrombembolia, 3 with isolated dissection complicated by thrombus, 2 with thrombus of superior mesenteric vein (SMV), 5 with missed distal thrombembolia, 3 with missed distal isolated dissection, 4 with misdiagnosed SMA stenosis, and 3 with misdiagnosed distal thrombembolia. The sensitivity of CDFI was 66.67%, specificity was 92.13%, and Kappa value was 0.597 (95%CI: 0.413~0.781). Conclusion CDFI has higher diagnostic value to mesenteric vessel ischemia lesions, which can accurately reflect lesion position and severity, thrombus and dissection, and hemodynamic changes. It is important to the diagnosis and etiological screening of mesenteric vascular abdominal pain.