多层螺旋CT对结、直肠息肉检查的临床应用

Clinical Application of Multi-Slice Sprial CT in Colorectal Polyps Examination

目的探讨多层螺旋CT(MSCT)对结、直肠息肉检查的价值.方法对21例患者MSCT结、直肠息肉检查容积扫描后,用多平面重建(MPR)、CT仿真内窥镜(CTVE)重建图像,并与纤维结肠镜(CC)检查及手术结果进行对比,其中男13例,女8例,年龄42～74岁.结果 21例患者共检出29枚息肉,CC检出28枚,检出率96.55%,MSCT检出26枚息肉,检出率89.66%,两者比较差异无统计学意义(P>0.05),其中4例行手术治疗;对≥5 mm息肉,MSCT与CC的差异不明显;MSCT检查没有盲区,可以检出CC不能达到肠段的息肉.结论 MSCT对结、直肠息肉检查是一种非侵入性、舒适、痛苦少、安全的检查,在结、直肠病变的全面观察方面及病变细节显示方面有优越性.

Objective To investigate the value of Muhi-slice spiral CT （MSCT） in colorectal polyps examination. Methods Twenty-one patients with colorectal polyps, including 13 males and 8 females, ranged from 42 to 74 years, underwent MSCT examination and the images were reconstructed with MPR and CTVE. The results were compared with colonoscopy （CC） and surgical results. Results 29 polyps were detected in 21 patients, 28 polyps were detected by CC （96.55%）, 26 polyps were detected by MSCT （89.66%）. There was no statistically significant difference between CC and MSCT （P 〉 0.05）. 4 patients with polyps underwent surgical treatment. There was no statistically significant difference in detection of polyps I〉 5 mm. MSCT had no blind zone in detection, and could detect polyps in bowel section which could not be reached by CC. Conclusions MSCT is a non-invasive, comfortable, less painful and safe examination for colorectal polyps, and has obvious advantages in observing colorectal lesions and displaying the abnormality in details.