CAJ | 학술논문

目的：探讨多层螺旋CT（multislice spiral computed tomography ，MSCT）多期扫描及图像后处理对胃癌的诊断价值。方法收集经病理证实的胃癌患者25例，术前行M SC T平扫、三期动态增强扫描及三维重建扫描，再运用多平面重建、容积重建及CT仿真内窥镜等后处理技术，观察胃癌原发部位、外周浸润及远处转移情况。结果所有患者M SC T图像质量均显示满意，均发现胃部原发病灶并获得胃周浸润、淋巴结转移、远处转移较满意的诊断率。结论M SC T多期扫描及图像后处理可以揭示胃癌原发部位、外周浸润及远处转移情况，对胃癌的诊断、术前评估及治疗方法选择具有重要意义。M SC T可在很大程度上提高微小病变的检出率，可对癌肿侵犯胃壁的深度、区域淋巴结转移、周围脏器浸润以及远处转移情况做出较为准确的判断。M SC T多期扫描及图像后处理可一次性获取多方面信息，可取代胃癌术前评估的X线上消化道造影检查。
목적：탐토다층라선CT（multislice spiral computed tomography ，MSCT）다기소묘급도상후처리대위암적진단개치。방법수집경병리증실적위암환자25례，술전행M SC T평소、삼기동태증강소묘급삼유중건소묘，재운용다평면중건、용적중건급CT방진내규경등후처리기술，관찰위암원발부위、외주침윤급원처전이정황。결과소유환자M SC T도상질량균현시만의，균발현위부원발병조병획득위주침윤、림파결전이、원처전이교만의적진단솔。결론M SC T다기소묘급도상후처리가이게시위암원발부위、외주침윤급원처전이정황，대위암적진단、술전평고급치료방법선택구유중요의의。M SC T가재흔대정도상제고미소병변적검출솔，가대암종침범위벽적심도、구역림파결전이、주위장기침윤이급원처전이정황주출교위준학적판단。M SC T다기소묘급도상후처리가일차성획취다방면신식，가취대위암술전평고적X선상소화도조영검사。
Objective To study the diagnostic value of multislice spiral computed tomography (MSCT) including multi-stage scan and post-processing techniques in gastric carcinoma .Methods 25 cases of gastric carcinoma ,which were path-ologically proved ,underwent plain scanning ,triphase enhancement scanning and three-dimensional reconstruction scan-ning ,then ,many kinds of post-processing technology including multi-planar reconstuction ,volume rendering and CT vir-tual endoscopy were performed to observe primary lesions in stomach ,infiltration and distant metastasis .Results All pa-rameters were obtained and the image was satisfactory .It was clearly shown that the primary lesions were in stomach and the infiltration was around them ,same to the lymph node metastasis .Conclusion It could be revealed primary lesions in stomach and infiltration and distant metastasis by MSCT multistage scan and post-processing techniques .It is significant for preoperative evaluation and the choice of therapeutics way of gastric carcinoma .MSCT can increase the detection rate of small focus of infection ,with high accuracy in judgement of invasive depth and regional lymph node metastasis of gastric carcinoma ,and the superiority in evaluating the distant metastases and the involvement of surrounding organs .MSCT multistage scan and post-processing techniques can achieve many-sided information ,which can replace preoperative evalua-tion of gastric carcinoma by X-ray radiography of upper digestive tract .