CT Virtual Endoscopy: A Research for Clinical Application / 实用放射学杂志

ABSTRACT

Objective To evaluate clinical applications of CT virtual endoscopy. Mathods 60 patients were examined with CTVE includes various body cavities such as air way , digestive tract, nose, pharynx,larynx and vessel. All cases were examined with spiral CT, then transfered the source images to work station dealt with special soft - ware package imitated the examination of fiberoptic endoscopy,some cases were compared with real fiberoptic endoscopy. Results In 30 cases of CT virtual bronchoscopy,all segmental and parts of sub - segmental bronchi were showed clearly, CTVE could reveal stenosis and bronchi occlusions in 20 patients with pulmonary carcinoma,but missed mucosal metastasis infitration and details in surface of mass showed with bronchiscopy. Digestive tract(n = 20) CTVE also well revealed mid and late carcinoma in stomach and colon (n = 8), but missed small polypus(n =1) and stomach ulcer(n = 2). In 7 cases of nasopharynx and larynx CTVE, carcinoma of nasopharynx(n =1) and carcinoma of larynx(n = 2) can clearly displayed. Vascular CTVE (n = 3) could display the details of aneurysm, such as the site of the entry tear,false lumen, neck and lumen of aneurysm. Conclusion CTVE plays an important role in the diagnosis of diseases body cavities.