ROLE OF MAGNETIC RESONANCE IMAGING IN LOCAL STAGING OF RECTAL CARCINOMA

  • Seema Rohilla Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
  • Manisha Garg Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
  • Sanjeev Parshad Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
  • Jyotsna Sen Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
  • Deepak Singla Senior Resident (Radiodiagnosis)
  • Aditya Duhan Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India
Keywords: rectal carcinoma, MRI, anal sphincter, staging.

Abstract

Background: The purpose of this study is to evaluate the role of Magnetic Resonance Imaging in staging rectal carcinoma. Methods: 27 biopsy proved cases of rectal carcinoma were subjected to pelvic MRI on 3.0T system (Discovery 750w, GE, Milwaukee, Wisconsin, USA). T1W, T2W and DW sequences were done in axial, sagittal and coronal plane (planes defined in reference to tumor). Then 0.01mmol/kg of gadolinium based contrast was injected intravenously and T1W sequences were done in all three planes. Tumor was evaluated for location (distance from anal verge as well as circumferential location), size, morphology, distance from anorectal junction, mucinous/non-mucinous, relation to anterior peritoneum, involvement of adjacent organs, vessels, nerves, lymph nodes, pelvic floor, anal sphincters, mesorectal fascia (MRF) and any metastasis. Tumors were staged and risk assessed based on these. The outcome was compared to surgical histopathological findings, per rectal/colonoscopy findings and follow-up. Results: Patients ranged from 32-72 year with mean age of 56 years. 13 patients were stage IV, 8 stage III, 6 stage II while there was no case in stage I. 22 patients were in high risk, 4 in intermediate risk and 1 in low-risk category. Out of total 27 patients 24 patients (89%) showed good correlation between MRI findings and final diagnosis (11 correlated with surgical/histopathological findings, 12 corroborated on follow-up while 1 correlated with per-rectal/colonoscopy findings). MRI findings of only 3 out of 27 patients didn’t show correlation with final outcome.

Author Biographies

Seema Rohilla, Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India

Senior Professor, Radiodiagnosis

Manisha Garg, Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India

Junior Resident, Radiodiagnosis

Sanjeev Parshad, Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India

Professor, General Surgery

Jyotsna Sen, Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India

Senior Professor and Head, Radiodiagnosis

Aditya Duhan, Pt B D Sharma Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India

Senior Resident, Radiodiagnosis

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Published
2023-05-17
How to Cite
[1]
S. Rohilla, M. Garg, S. Parshad, J. Sen, D. Singla, and A. Duhan, “ROLE OF MAGNETIC RESONANCE IMAGING IN LOCAL STAGING OF RECTAL CARCINOMA”, JSS, vol. 10, no. 1, May 2023.