The Application Comparison of MSCTA and CT Plain Scan in Acute Mesenteric Vascular Embolization1112

Objective To compare the application value of MSCTA and plain CT in the mesenteric vascular embolization. Methods To retrospective analysis the images of nonenhanced CT、CTA and three-dimensional reconstruction of 17 cases with acute embolism of SMA and SMV proved by operation or DSA retrospectively. All patients underwent emergent full abdominal plain CT scan and CTA scan. Calculate the positive rate of thrombus in MSCTA and plain CT, measure the diameter and implicate length of thrombus on MPR images. Results 7 cases were SMAE and 10 cases were SMVE. 2 cases of 7 SMAE showed thrombosis on CT plain scan and the sensitivity was 28.8%,all cases showed filling defect on CTA and the sensitivity was 100%,there was statistical differences between plain CT scan and CTA on the sensitivity of thrombosis showed(X2=7.22 P0.05). 5 cases of 10 SMVE showed thrombosis on CT plain scan and the sensitivity was 50%,all cases showed filling defect on CTA and the sensitivity was 100%,there was statistical differences between CT plain scan and CTA on the sensitivity of thrombosis showed(X2=4.76 P0.05).In 7 cases plain both CT scan and CTA showed thrombosis, plain CT scan and CTA measured diameter of thrombosis were 6.8±2.3mm, 9.1±3.8mm and there was statistical differences on diameter of thrombosis(t=3.51,P0.05). Plain CT scan and CTA measured length of thrombus implicated were 24.6±8.9mm, 41.7±15.5mm and there was statistical differences on diameter of thrombosis(t=4.84,P0.05). Conclusion MSCTA was more sensitive than plain CT scan in the mesenteric vascular embolization, MSCTA can be able to show the location, form and scope more accurately,CTA can become the preferred emergency method of examination of mesenteric vascular embolization