MSCT、MRI检查对中低位直肠癌术前T分期诊断结果与腹腔镜术后病理对照分析

目的探讨MSCT、MRI检查对中低位直肠癌术前T分期诊断结果与腹腔镜术后病理对照研究。方法选取我院2017年8月至2018年11月收治的中低位直肠癌患者77例,77例患者均经过手术或病理活检确诊为直肠癌,收集其MSCT、MRI检查资料,比较MSCT与MRI检查对中低位直肠癌术前T分期诊断准确率。结果MRI对中低位直肠癌T1、T2、T3、T4分期诊断准确率分别为91.66%、91.30%、91.30%、94.73%,MRI对中低位直肠癌T分期总体诊断准确率为92.20%(71/77)。MSCTI对中低位直肠癌T1、T2、T3、T4分期诊断准确率分别为75.00%、78.26%、86.95%、89.47%,MSC对中低位直肠癌T分期总体诊断准确率为75.32%(58/77),低于MRI检查T分期总体诊断准确率,差异有统计学意义(χ²=8.070,P=0.005)。结论相对于MSCT检查,MRI检查诊断中低位直肠癌术前T分期具有优越性,可为临床手术提高可靠影像学信息。

Comparison Analysis of Preoperative T Staging Diagnosis Results of MSCT and MRI and Postoperative Pathology of Laparoscopy in Middle and Low Rectal Carcinoma

Objective To investigate the comparison study of preoperative T staging diagnosis results of MSCT and MRI examination and postoperative pathology of laparoscopy in middle and low rectal carcinoma.Method 77 patients with middle and low rectal carcinoma,admitted to our hospital from August2017 to November 2018,were diagnosed with ca rcinoma of rectum through surgery or pathological biopsy.Their MSCT and MRI examination data were collected to compare the preoperative T staging diagnostic accuracy rate of MSCT and MRI examination for middle and low rectal carcinoma.Results The diagnostic accu racy rate of MRI for T1,T2,T3,and T4 staging of low and medium rectal ca rcinoma was 91.66%,91.30%,91.30%,and 94.73%,respectively.The ove rall diagnostic accu ra cy rate of MRI for T staging of low and medium rectal carcinoma was 92.20%(71/77),and respectively,the diagnostic accuracy rate of MRI for T1,T2,T3,and T4 staging of low and medium rectal carcinoma was 91.66%,91.30%,91.30%,and 94.73%.However,the total diagnostic accuracy rate of MSCT for T staging of middle and low rectal carcinoma was 75.32%(58/77),and the diagnostic accuracy rate of MSCT for T1,T2,T3,and T4 of middle and low rectal carcinoma was 75.00%,78.26%,86.95%,and 89.47%,respectively.The total diagnostic accu ra cy rate of T staging by MSCT was lower than that by MRI,and the difference was statistically significant(χ²=8.070,P=0.005).Conclusion Compa red with MSCT,MRI examination has more advantages in diagnosing preoperative T staging of low and medium rectal ca rcinoma,which can improve reliable imaging information for clinical surge ry.