【摘要】：目的比較經(jīng)直腸超聲(ERUS)和體部線圈MRI對直腸癌T分期診斷準(zhǔn)確性。方法回顧性分析31例術(shù)前未接受新輔助放化療的直腸癌患者,對所有患者均于術(shù)前1周行ERUS和MR檢查、后行一期手術(shù)切除。以術(shù)后病理結(jié)果作為金標(biāo)準(zhǔn),比較ERUS和MRI對直腸癌T分期的診斷效能。結(jié)果 31例患者中,術(shù)后病理診斷T1期7例,T2期6例,T3期18例。ERUS顯示病變累及腸管長度約(28.18±13.30)mm,MRI顯示約為(35.58±18.24)mm,二者差異有統(tǒng)計學(xué)意義(t=3.497,P=0.002),但兩種檢查所測得病變下緣距肛門距離、病灶厚度的差異均無統(tǒng)計學(xué)意義(P均0.05)。ERUS診斷直腸癌T1、T2、T3、T4期的準(zhǔn)確率分別為93.55%,93.55%,87.10%和100%,總準(zhǔn)確率為93.55%;MRI診斷直腸癌T1、T2、T3、T4期的準(zhǔn)確率分別為87.10%,70.97%,64.52%和93.55%,總準(zhǔn)確率為79.03%;ERUS、MRI診斷的直腸癌各期以及總準(zhǔn)確率的差異均無統(tǒng)計學(xué)意義(P均0.05)。結(jié)論 ERUS和MRI均為直腸癌術(shù)前分期診斷的可靠檢查方法,ERUS對于T分期的準(zhǔn)確性稍高于MRI。
[Abstract]:Objective to compare the diagnostic accuracy of transrectal ultrasound (ERUS) and body coil MRI in T stage of rectal cancer. Methods 31 patients with rectal cancer without neoadjuvant radiotherapy and chemotherapy were retrospectively analyzed. All patients were examined with ERUS and MR 1 week before operation and then underwent primary resection. The diagnostic efficacy of ERUS and MRI in T staging of rectal cancer was compared with postoperative pathological results as gold standard. Results among the 31 cases, 7 cases were diagnosed as T1 stage, 6 cases as T2 stage, 18 cases as T3 stage. ERUS showed the length of the involved bowel was about (28.18 鹵13.30) mm,MRI was (35.58 鹵18.24) mm,. There was significant difference between the two groups (t = 3.497), but there was no significant difference in the distance between the lower margin of the lesion and the anus and the thickness of the lesion (P < 0. 05) in the diagnosis of rectal cancer (P < 0. 05), and there was no significant difference in the thickness of the lesion between the two kinds of examinations (P < 0. 05) in the diagnosis of rectal cancer. The accuracy of T4 was 93.55% and 100%, respectively, and the total accuracy was 93.55%. The accuracy of MRI in the diagnosis of stage T1, T2, T3 and T4 of rectal cancer was 77.10%, 64.52% and 93.55%, respectively, and the total accuracy was 79.03; There was no significant difference in ERUS,MRI diagnosis of rectal cancer in all stages and total accuracy (P 0.05). Conclusion both ERUS and MRI are reliable diagnostic methods for preoperative staging of rectal cancer. The accuracy of ERUS in T staging is slightly higher than that in MRI..
【作者單位】： 中山大學(xué)附屬第六醫(yī)院超聲科;中山大學(xué)附屬第六醫(yī)院影像科;
【分類號】：R445.1;R735.37

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