Multi-slice spiral CT in the preoperative stage assessment of gastric carcinoma / 中国普通外科杂志

ABSTRACT

Objective To explore the values of CT virtual gastroscopy (CTVG), three dimensional (3D) and axial imaging by multi slice spiral CT (MSCT) in the preoperative assessment of gastric carcinoma. Methods Fifty two patients with gastric carcinoma proven by means of biopsy underwent CTVG, 3D imaging using the surface shaded display (SSD) and Raysum, and axial imaging. MSCT was first performed after the ingestion of gas, and a second tri phase MSCT scan was performed after the ingestion of water. The results were compared with those of fibrous gastroscopy (FG) and surgical pathological findings. Results The detection rates of gastric lesions with CTVG, 3D and axial imaging by MSCT were 98.1%, 96.2%, and 96.2%, respectively. The accuracy of judging gross type of advanced gastric carcinoma using CTVG combined with 3D imaging, FG,and axial imaging was 92.5% , 82.5%, and 75.0%, respectively.Statistical difference existed in CTVG combined with 3D imaging and axial imaging (P