Pre-Operative MRI in evaluation of Perianal fistulas

Background: Perianal fistula is a common and often an extremely distressing disorder. MRI is a preferred modality for the preoperative assessment of perianal fistulas. Aims and Objective: To evaluate the accuracy and predictive values of pre-operative MRI in diagnosing severity of perianal fistul...

Full description

Bibliographic Details
Main Authors: Milind Sawant, Giriraj Singh, Harish S, Kaushik Roy
Format: Article
Language:English
Published: Manipal College of Medical Sciences, Pokhara 2021-01-01
Series:Asian Journal of Medical Sciences
Subjects:
Online Access:https://www.nepjol.info/index.php/AJMS/article/view/30934
_version_ 1818383403148378112
author Milind Sawant
Giriraj Singh
Harish S
Kaushik Roy
author_facet Milind Sawant
Giriraj Singh
Harish S
Kaushik Roy
author_sort Milind Sawant
collection DOAJ
description Background: Perianal fistula is a common and often an extremely distressing disorder. MRI is a preferred modality for the preoperative assessment of perianal fistulas. Aims and Objective: To evaluate the accuracy and predictive values of pre-operative MRI in diagnosing severity of perianal fistulas and the conditions associated with it like internal anal opening, secondary tract, abscess and supralevator extension. Materials and Methods: In this study, 44 patients with clinically suspected perianal fistulas underwent MRI for the evaluation of severity and presence of the associated conditions. St James’s University Hospital Classification was used to grade the perianal fistula. Pre-operative MRI grading was compared with the surgical findings in the 26 operated patients. Results: Out of 44 clinically suspected perianal fistulas, 41 (93%) were diagnosed as perianal fistulas by MRI. The most common type was grade 1 seen in 12(27.3%) patients followed by grade 4 fistula seen in 10(22.7%) patients. All 26 patients evaluated by surgical findings for severity of perianal fistulas were found to be graded in identical grades by pre-operative MRI. MRI was 100% sensitive in picking up all five grades. Conclusion: MRI helps in the accurate delineation of fistulous tract, identification of secondary tract and abscess.
first_indexed 2024-12-14T03:05:48Z
format Article
id doaj.art-b19261c5f70846048d73487fc99ba71f
institution Directory Open Access Journal
issn 2467-9100
2091-0576
language English
last_indexed 2024-12-14T03:05:48Z
publishDate 2021-01-01
publisher Manipal College of Medical Sciences, Pokhara
record_format Article
series Asian Journal of Medical Sciences
spelling doaj.art-b19261c5f70846048d73487fc99ba71f2022-12-21T23:19:24ZengManipal College of Medical Sciences, PokharaAsian Journal of Medical Sciences2467-91002091-05762021-01-011215560https://doi.org/10.3126/ajms.v12i1.30934Pre-Operative MRI in evaluation of Perianal fistulasMilind Sawant 0https://orcid.org/0000-0001-6424-4520Giriraj Singh 1https://orcid.org/0000-0002-9380-9057Harish S 2https://orcid.org/0000-0003-2331-6879Kaushik Roy 3https://orcid.org/0000-0002-5245-9011Assistant Professor, Department of Radiology, Command Hospital, Lucknow, Uttar Pradesh. India Professor, Department of Radiology, Command Hospital, Chandimandir, Panchkula. Haryana, India Assistant Professor, Department of Surgery, Command Hospital, Lucknow, Uttar Pradesh, India Assistant Professor, Department of Preventive and Social Medicine, Army College of Medical Sciences, New Delhi, India Background: Perianal fistula is a common and often an extremely distressing disorder. MRI is a preferred modality for the preoperative assessment of perianal fistulas. Aims and Objective: To evaluate the accuracy and predictive values of pre-operative MRI in diagnosing severity of perianal fistulas and the conditions associated with it like internal anal opening, secondary tract, abscess and supralevator extension. Materials and Methods: In this study, 44 patients with clinically suspected perianal fistulas underwent MRI for the evaluation of severity and presence of the associated conditions. St James’s University Hospital Classification was used to grade the perianal fistula. Pre-operative MRI grading was compared with the surgical findings in the 26 operated patients. Results: Out of 44 clinically suspected perianal fistulas, 41 (93%) were diagnosed as perianal fistulas by MRI. The most common type was grade 1 seen in 12(27.3%) patients followed by grade 4 fistula seen in 10(22.7%) patients. All 26 patients evaluated by surgical findings for severity of perianal fistulas were found to be graded in identical grades by pre-operative MRI. MRI was 100% sensitive in picking up all five grades. Conclusion: MRI helps in the accurate delineation of fistulous tract, identification of secondary tract and abscess.https://www.nepjol.info/index.php/AJMS/article/view/30934perinanal fistulapreoperative mriperianal fistula grading
spellingShingle Milind Sawant
Giriraj Singh
Harish S
Kaushik Roy
Pre-Operative MRI in evaluation of Perianal fistulas
Asian Journal of Medical Sciences
perinanal fistula
preoperative mri
perianal fistula grading
title Pre-Operative MRI in evaluation of Perianal fistulas
title_full Pre-Operative MRI in evaluation of Perianal fistulas
title_fullStr Pre-Operative MRI in evaluation of Perianal fistulas
title_full_unstemmed Pre-Operative MRI in evaluation of Perianal fistulas
title_short Pre-Operative MRI in evaluation of Perianal fistulas
title_sort pre operative mri in evaluation of perianal fistulas
topic perinanal fistula
preoperative mri
perianal fistula grading
url https://www.nepjol.info/index.php/AJMS/article/view/30934
work_keys_str_mv AT milindsawant preoperativemriinevaluationofperianalfistulas
AT girirajsingh preoperativemriinevaluationofperianalfistulas
AT harishs preoperativemriinevaluationofperianalfistulas
AT kaushikroy preoperativemriinevaluationofperianalfistulas