Assessment of T staging and mesorectal fascia status using high-resolution MRI in rectal cancer with rectal distention

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. In a prospective study of 67 patients with primary rectal cancer, high-resolution...

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Bibliographic Details
Published in:World journal of gastroenterology : WJG 2007-08, Vol.13 (30), p.4141-4146
Main Authors: Rao, Sheng-Xiang, Zeng, Meng-Su, Xu, Jian-Ming, Qin, Xin-Yu, Chen, Cai-Zhong, Li, Ren-Chen, Hou, Ying-Yong
Format: Article
Language:English
Subjects:
Fascia - pathology
Female
Humans
Magnetic Resonance Imaging - methods
Male
Middle Aged
Neoplasm Staging
Preoperative Care
Prospective Studies
Rapid Communication
Rectal Neoplasms - pathology
Rectum - pathology
Sensitivity and Specificity
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Summary: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. In a prospective study of 67 patients with primary rectal cancer, high-resolution magnetic resonance imaging (in-plane resolution, 0.66 multiply 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. 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
ISSN:1007-9327
2219-2840
DOI:10.3748/wjg.v13.i30.4141