The evaluation of multislice spiral computed tomography angiography in the diagnosis of moyamoya disease

Abstract

Objective To evaluate the diagnostic value of the multislice spiral computed tomography angiography (MSCTA) in the diagnosis of moyamoya disease and explore its future application. Method The image data of 10 patients with moyamoya disease undertaken MSCTA and digital subtraction angiography (DSA) were reviewed analysis. Results MSCTA could clearly show stenosis, multiple occlusion or abnormalities of the cerebral vessels. Volume-rendering helped to show the relationship between the abnormal vessels and the surrounding tissues. Combined maximum intensity projection (MIP) and multiplsnar reconstruction (MPB) images could clearly show abnormally increased vessels (moyamoya disease vessels). The rate of occlusion and stenosis showed by MSCTA were 66.2%(53/80)and 67.5%(54/80)by DSA. There was no significant difference between the two methods (P>0.05). The images of MSCTA were basically same as those of DSA. Conclusions MSCTA is sensitive in diagnosing moyamoya disease, which is an important basis for early diagnosis. Early diagnosis and treatment is effective in improving prognosis of moyamoya disease. Key words: Tomography; Moyamoya disease; Multislice spiral computed tomography angiography