Added Value of Diffusion Weighted Magnetic Resonance Imaging in evaluation of Perianal Fistula at Zagazig University Hospitals | ||
| Zagazig University Medical Journal | ||
| Article 37, Volume 30, Issue 1.5, August 2024, Pages 2311-2320 PDF (271.73 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/zumj.2023.252477.3028 | ||
| Authors | ||
| Tamer Othman Ahmed Khater* 1; Khaled Lakouz2; Ahmed Mohammad Alaa3; Engy Fathy Tantawy4 | ||
| 1M.B.B.C.H Faculty of Medicine – Zagazig University | ||
| 2Radiodiagnosis Department, Faculty of Medicine, Zagazig University, Egypt | ||
| 3Radiology department,faculty of Medicine ,Zagazig University ,Zagazig , Egypt | ||
| 4Radiology department zagazig university | ||
| Abstract | ||
| Background: The main aim of the current study is to evaluate the added value of DW-MRI in diagnosis of perianal fistula taking the surgical treatment as the golden standard for our findings. Methods: The present study is a retrospective analysis that involved a cohort of 36 individuals who were clinically diagnosed with perianal fistula. These patients underwent magnetic resonance imaging (MRI) using a 1.5-T scanner. Three distinct b-values were utilized to conduct DWI sequences. Additional regular MRI sequences were incorporated. MRI images were analyzed in order to assess and evaluate the diagnostic effectiveness of the diffusion-weighted MRI sequence with other sequences in the diagnosis of perianal fistula. Post-surgical data has always been considered the main reference for assessing diagnostic efficacy. Results: Among 36 cases confirmed with perianal fistula by surgical intervention, 28 cases (true positive) were detected by MRI, and 8 cases were missed (False negative) while all the 36 cases were detected by DWI, so MRI had (77.8%) sensitivity while DWI had (100%) sensitivity, with adding value 22.2% over MRI for diagnosis of fistula. In our study, we reported the presence of abscesses in 11.1% of examined cases. Conclusion: MRI is the modality of choice for preoperative evaluation of perianal fistula; however DWI had an added value over other MRI sequences in detection and diagnosis of such cases. This highlights the role of DWI-MRI in drawing a map, especially for surgeons aiming for successful surgical interventions. | ||
| Keywords | ||
| Perianal fistula; DWI; added-value; MRI; Zagazig.&lrm | ||
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