Assessment of T staging and mesorectal fascia status using high-resolution MRI in rectal cancer with rectal distention
Assessment of T staging and mesorectal fascia status using high-resolution MRI in rectal cancer with rectal distention
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DOI：
10.3748/wjg.v13.i30.4141
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发表时间：
2007-08-14
影响因子：
4.3
通讯作者：
Hou, Ying-Yong
中科院分区：
文献类型：
--
作者：
Rao, Sheng-Xiang;Zeng, Meng-Su;Hou, Ying-Yong
目的：确定使用相控阵线圈的高分辨率磁共振成像（MRI）对直肠癌伴直肠扩张的T分期和直肠系膜筋膜浸润进行术前评估的准确性。在一项对67例原发性直肠癌患者的前瞻性研究中，（平面分辨率，0.66 × 0.56）进行T分期和测量肿瘤与直肠系膜筋膜之间的距离。将MRI评估结果与术后病理结果进行比较。敏感性，特异性，准确性，阳性预测值和阴性预测值进行了evaluated.RESULTS：整体磁共振准确性为85.1%的T分期和88%预测直肠系膜筋膜参与。磁共振诊断乳腺癌的敏感性、特异性、准确性、阳性预测值和阴性预测值分别为70%、97.9%、89.6%、93.3%和88.5
AIM: To determine the accuracy of high-resolution magnetic resonance imaging (MRI) using phased-array coil for preoperative assessment of T staging and mesorectal fascia infiltration in rectal cancer with rectal distention.METHODS: In a prospective study of 67 patients with primary rectal cancer, high-resolution magnetic resonance imaging (in-plane resolution, 0.66 x 0.56) with phased-array coil were performed for T-staging and measurement of distance between the tumor and the mesorectal fascia. The assessment of MRI was compared with postoperative histopathologic findings. Sensitivity, specificity, accuracy, positive predictive value, and negative predictive value were evaluated.RESULTS: The overall magnetic resonance accuracy was 85.1% for T staging and 88% for predicting mesorectal fascia involvement. Magnetic resonance sensitivity, specificity accuracy, positive predictive value, and negative predictive value was 70%, 97.9%, 89.6%, 93.3% and 88.5% for