The Diagnosis And Differential Diagnosis Value Of 64-slice CT Of True And False Lumen In Aortic Dissection

Purpose The diagnosis value of 64-slice spiral CT in aortic dissection. Compare the display rate in 3D free cut VRT imaging, CTVE and other post-processing methods on intimal tear above the level of celiac. When the aortic dissection involving the abdominal dry level, study true and false lumen of aortic dissection diagnosis and differential diagnosis.Materials and Methods The data collected from the First Affiliated Hospital of Suzhou University and Shanghai Jiaotong University in Suzhou Kowloon Hospital on Jan. 1, 2007 to April 9, 2010 and diagnosed 163 cases of patients diagnosed with aortic dissection; underwent 64-slice spiral CT angiography.Result1. 163 cases, 87 patients with aortic dissection, in which De Bakey I type were 19 cases, De Bakey II were 5 cases, De Bakey III were 63 cases; true aneurysm 19 cases, 11 cases with mural thrombus; false aneurysm in 3 cases, 4 cases of Takayasu arteritis, aortic atherosclerosis with mural thrombus in 4 cases, others such as pulmonary thrombosis, pulmonary inflammation, pleural thickening and adhesions, gallstones, cholecystitis, intestinal obstruction and other non-aortic lesions 9 cases, no significant positive lesions in 37 cases.2. Cross-sectional images after treatment with five shows in the intimal tear ability to have significant differences, the rate of the intimal tear shows from high to low were axial sequence combined with CTVE, VRT free cut like, MPR, cross-sectional surface, VR, MIP.3. The level of celiac trunk by the false lumen of a branch of blood or involved, it is usually also shows the true lumen re-entry to the appropriate branch from the blood, and then towards the entrance to the edge of intimal artery bifurcation, and the various branches of the blood supply from the true lumen will not see again entry, comprehensive blood supply of various branches of the distribution and re-entry of 39 patients with aortic dissection and identification of true and false lumen observation or surgery confirmed the whole match.Conclusions1.64-slice spiral CT cross-sectional imaging technology and its various post-processing can be fast, accurate, noninvasive, and make comprehensive diagnosis of aortic diseases.2. CTVE to three-dimensional visual display location of rupture, combined with axial images can improve the display rate of the break; VRT free rate cut as shown on the break significantly increased compared with VR, and MPR have the same effect, or even better than the MPR.3. The level of the celiac branch of the blood supply as well as import of the distribution of true and false lumen of aortic dissection has important clinical value of identification and help to identify the region re-entry.