Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?

Abstract Background Surgeons find treating perianal fistula difficult because insufficient drainage and failure to eradicate perianal sepsis could increase the risk of recurrence and postoperative complications. For better planning of the most suitable surgical technique, surgeons must consider the...

Full description

Bibliographic Details
Main Authors: Mary Salah Roman Boles, Rania Farouk El-Sayed, Haney Ahmed Sami Shawali, Ahmed Farag, Fawzy Salah Fawzy, Maryse Youssef Awadallah
Format: Article
Language:English
Published: SpringerOpen 2023-03-01
Series:The Egyptian Journal of Radiology and Nuclear Medicine
Subjects:
Online Access:https://doi.org/10.1186/s43055-023-00989-z
_version_ 1797865171028279296
author Mary Salah Roman Boles
Rania Farouk El-Sayed
Haney Ahmed Sami Shawali
Ahmed Farag
Fawzy Salah Fawzy
Maryse Youssef Awadallah
author_facet Mary Salah Roman Boles
Rania Farouk El-Sayed
Haney Ahmed Sami Shawali
Ahmed Farag
Fawzy Salah Fawzy
Maryse Youssef Awadallah
author_sort Mary Salah Roman Boles
collection DOAJ
description Abstract Background Surgeons find treating perianal fistula difficult because insufficient drainage and failure to eradicate perianal sepsis could increase the risk of recurrence and postoperative complications. For better planning of the most suitable surgical technique, surgeons must consider the risk factors of recurrence with an accurate pre-operative assessment of perianal fistulae. The most common imaging method for grading primary perianal fistulas, identifying their complications, and locating occult extensions is magnetic resonance imaging (MRI). However, surgeons may find it challenging to read the lengthy reports of complex tracts, particularly for complicated patients. The creation of three-dimensional (3D) models has gained traction recently as a genuinely useful diagnostic tool for pre-operative planning. The authors evaluated the value of these surgical models. Inspecting the 3D models in addition to the routine two-dimensional study caused four out of five skilled colorectal surgeons to re-evaluate how far the fistulae extended. This made promise that 3D models would be helpful, simple to understand, and quick to interpret for colorectal surgeons. The purpose of the study is to assess the value of adding 3D modelling of MRI to standard two-dimensional MRI protocol for more accurate delineation of perianal fistula and its complications aiming at better surgical outcomes. Results Regarding 3D models, the highest degree of accuracy was in detecting supra-levator extension (100%) by both the third radiologist and the surgeon. There was a statistically high diagnostic inter-observer agreement between both, with a p-value < 0.0001. The highest inter-observer agreement was in the supra-levator extension (50/50, 100%), and the lowest agreement was in the side branches detection (44/50, 88%). Conclusions Pre-operative 3D MRI modelling provided the surgeon with a pre- and intra-operative road map that improved the surgeon’s orientation and ability to see complex perianal fistulas and their consequences, especially those with supra levator extension, thus helping the surgeon achieve better surgical results and decrease the preoperative risk factors of recurrence. Surgeons should utilise it in complex and recurrent cases reducing preoperative risk factors and improving outcomes. Although this technique is expensive, its cost–benefit ratio is low relative to recurrent hospitalisation and complications.
first_indexed 2024-04-09T23:04:51Z
format Article
id doaj.art-16040beecb3b408ab74388a4e165ad06
institution Directory Open Access Journal
issn 2090-4762
language English
last_indexed 2024-04-09T23:04:51Z
publishDate 2023-03-01
publisher SpringerOpen
record_format Article
series The Egyptian Journal of Radiology and Nuclear Medicine
spelling doaj.art-16040beecb3b408ab74388a4e165ad062023-03-22T10:45:42ZengSpringerOpenThe Egyptian Journal of Radiology and Nuclear Medicine2090-47622023-03-0154111210.1186/s43055-023-00989-zIntroducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?Mary Salah Roman Boles0Rania Farouk El-Sayed1Haney Ahmed Sami Shawali2Ahmed Farag3Fawzy Salah Fawzy4Maryse Youssef Awadallah5Department of Diagnostic and Interventional Radiology, Kasr Al Ainy Hospital, Faculty of Medicine, Cairo UniversityDepartment of Diagnostic and Interventional Radiology, Kasr Al Ainy Hospital, Faculty of Medicine, Cairo UniversityDepartment of Diagnostic and Interventional Radiology, Kasr Al Ainy Hospital, Faculty of Medicine, Cairo UniversityDepartment of General Surgery, Kasr Al Ainy Hospital, Faculty of Medicine, Cairo UniversityDepartment of General Surgery, Faculty of Medicine, Ain Shams UniversityDepartment of Diagnostic and Interventional Radiology, Kasr Al Ainy Hospital, Faculty of Medicine, Cairo UniversityAbstract Background Surgeons find treating perianal fistula difficult because insufficient drainage and failure to eradicate perianal sepsis could increase the risk of recurrence and postoperative complications. For better planning of the most suitable surgical technique, surgeons must consider the risk factors of recurrence with an accurate pre-operative assessment of perianal fistulae. The most common imaging method for grading primary perianal fistulas, identifying their complications, and locating occult extensions is magnetic resonance imaging (MRI). However, surgeons may find it challenging to read the lengthy reports of complex tracts, particularly for complicated patients. The creation of three-dimensional (3D) models has gained traction recently as a genuinely useful diagnostic tool for pre-operative planning. The authors evaluated the value of these surgical models. Inspecting the 3D models in addition to the routine two-dimensional study caused four out of five skilled colorectal surgeons to re-evaluate how far the fistulae extended. This made promise that 3D models would be helpful, simple to understand, and quick to interpret for colorectal surgeons. The purpose of the study is to assess the value of adding 3D modelling of MRI to standard two-dimensional MRI protocol for more accurate delineation of perianal fistula and its complications aiming at better surgical outcomes. Results Regarding 3D models, the highest degree of accuracy was in detecting supra-levator extension (100%) by both the third radiologist and the surgeon. There was a statistically high diagnostic inter-observer agreement between both, with a p-value < 0.0001. The highest inter-observer agreement was in the supra-levator extension (50/50, 100%), and the lowest agreement was in the side branches detection (44/50, 88%). Conclusions Pre-operative 3D MRI modelling provided the surgeon with a pre- and intra-operative road map that improved the surgeon’s orientation and ability to see complex perianal fistulas and their consequences, especially those with supra levator extension, thus helping the surgeon achieve better surgical results and decrease the preoperative risk factors of recurrence. Surgeons should utilise it in complex and recurrent cases reducing preoperative risk factors and improving outcomes. Although this technique is expensive, its cost–benefit ratio is low relative to recurrent hospitalisation and complications.https://doi.org/10.1186/s43055-023-00989-zColorectal surgeryRectal fistula3D imagingsComputer generated
spellingShingle Mary Salah Roman Boles
Rania Farouk El-Sayed
Haney Ahmed Sami Shawali
Ahmed Farag
Fawzy Salah Fawzy
Maryse Youssef Awadallah
Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?
The Egyptian Journal of Radiology and Nuclear Medicine
Colorectal surgery
Rectal fistula
3D imagings
Computer generated
title Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?
title_full Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?
title_fullStr Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?
title_full_unstemmed Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?
title_short Introducing 3D modelling of MRI in the preoperative mapping of perianal fistula: How it could help the surgeons?
title_sort introducing 3d modelling of mri in the preoperative mapping of perianal fistula how it could help the surgeons
topic Colorectal surgery
Rectal fistula
3D imagings
Computer generated
url https://doi.org/10.1186/s43055-023-00989-z
work_keys_str_mv AT marysalahromanboles introducing3dmodellingofmriinthepreoperativemappingofperianalfistulahowitcouldhelpthesurgeons
AT raniafaroukelsayed introducing3dmodellingofmriinthepreoperativemappingofperianalfistulahowitcouldhelpthesurgeons
AT haneyahmedsamishawali introducing3dmodellingofmriinthepreoperativemappingofperianalfistulahowitcouldhelpthesurgeons
AT ahmedfarag introducing3dmodellingofmriinthepreoperativemappingofperianalfistulahowitcouldhelpthesurgeons
AT fawzysalahfawzy introducing3dmodellingofmriinthepreoperativemappingofperianalfistulahowitcouldhelpthesurgeons
AT maryseyoussefawadallah introducing3dmodellingofmriinthepreoperativemappingofperianalfistulahowitcouldhelpthesurgeons