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A prospective comparison study for predicting circumferential resection margin between preoperative MRI and whole mount sections in mid-rectal cancer: significance of different scan planes.

 Y.W. Kim  ;  N.K. Kim  ;  B.S. Min  ;  H. Kim  ;  J. Pyo  ;  M.J. Kim  ;  S.H. Cha 
 EJSO, Vol.34(6) : 648-654, 2008 
Journal Title
Issue Date
Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Magnetic Resonance Imaging/methods* ; Male ; Middle Aged ; Neoplasm Recurrence, Local/prevention & control ; Neoplasm Staging ; Preoperative Care ; Prospective Studies ; ROC Curve ; Rectal Neoplasms/pathology* ; Rectal Neoplasms/surgery ; Sensitivity and Specificity
Rectal cancer ; Magnetic resonance imaging ; Circumferential resection margin ; Whole-mount sections ; Scan plane
AIM: The aim of this study is to evaluate the accuracy of preoperative magnetic resonance imaging (MRI) in the prediction of circumferential resection margin (CRM) and to determine whether each different MRI scan plane provides an accurate CRM assessment.

METHOD: Fifty-seven consecutive patients with mid-rectal cancer were enrolled prospectively. The CRM measurement from each MRI plane according to tumor location was compared with CRM measurement on whole-mount sections with the definition of threatened CRM as 2 mm in distance. The difference in performance among the sagittal, axial and oblique MR images was analyzed by using receiver operating characteristic (ROC) curves (A(z)).

RESULTS: For anterior tumors (n = 17), the A(z) of the sagittal, axial and oblique MR planes were 0.66, 0.83 and 0.79, respectively. For lateral tumors (n = 17), the A(z) of the sagittal, axial and oblique MR planes were 0.53, 0.66 and 0.78, respectively. For posterior tumors (n = 23), the A(z) of the sagittal, axial and oblique MR planes were 0.76, 0.82 and 0.97, respectively.

CONCLUSIONS: MRI provides an accurate prediction of preoperative CRM. There exist differences in diagnostic accuracy according to each different scan plane of MRI and tumor location within the rectum.
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1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Nam Kyu(김남규) ORCID logo https://orcid.org/0000-0003-0639-5632
Kim, Myeong Jin(김명진) ORCID logo https://orcid.org/0000-0001-7949-5402
Kim, Young Wan(김영완)
Kim, Hogeun(김호근)
Min, Byung Soh(민병소) ORCID logo https://orcid.org/0000-0003-0180-8565
Cha, Seung Whan(차승환)
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