ArticleEuropean radiology2014
Diffusion-weighted MR imaging for the diagnosis of abscess complicating fistula-in-ano: preliminary experience.
Article in European radiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.
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Who cites it
20 citing papers in PubMed, 1 synthesis or guideline pooled it, 57 citations in OpenAlex.
- Diffusion tensor imaging of the pelvic floor muscles and pelvic organs: a systematic review.Frontiers in medical technology · 2026Pooled it
- Diffusion Tensor Imaging in the Diagnosis of Perianal Abscess: Protocol for a Single-Blind Randomized Controlled Trial.JMIR research protocols · 2026Article
- Incidental findings in female pelvis MRI performed for gynaecological malignancies.Insights into imaging · 2025Article
- Imaging of Ulcerative Colitis: The Role of Diffusion-Weighted Magnetic Resonance Imaging.Journal of clinical medicine · 2024Review
- Dynamic contrast-enhanced MR imaging in identifying active anal fistula after surgery.BMC medical imaging · 2024Article
- A magnetic resonance imaging-based decision-making tool for predicting complex anal fistulas healing in the early postoperative period.BMC gastroenterology · 2023Article
- [Perianal Fistula: An Overview].Journal of the Korean Society of Radiology · 2023Review
- A study of the diagnostic efficacy of diffusion-weighted magnetic resonance imaging in the diagnosis of perianal fistula and its complications.Polish journal of radiology · 2023Article
- MRI diagnose post-operative anastomotic leak in patients with rectal cancer: preliminary experience.BMC surgery · 2022Article
- Quantitative Magnetic Resonance Imaging in Perianal Crohn's Disease at 1.5 and 3.0 T: A Feasibility Study.Diagnostics (Basel, Switzerland) · 2021Article
- Guidelines on postoperative magnetic resonance imaging in patients operated for cryptoglandular anal fistula: Experience from 2404 scans.World journal of gastroenterology · 2021Review
- Role of Diffusion-Weighted Imaging in the Evaluation of Perianal Fistulae.The Indian journal of radiology & imaging · 2021Article
- Elucidating vaginal fistulas on CT and MRI.Insights into imaging · 2019Review
- Preoperative evaluation of small bowel complications in Crohn's disease: comparison of diffusion-weighted and contrast-enhanced MR imaging.European radiology · 2019Article
- Observational
- Role of magnetic resonance imaging in the management of perianal Crohn's disease.Insights into imaging · 2018Review
- Article
- Anoperineal disease in Hidradenitis Suppurativa : MR imaging distinction from perianal Crohn's disease.European radiology · 2017Article
- Magnetization transfer ratio for the assessment of perianal fistula activity in Crohn's disease.European radiology · 2017Article
- Perianal Fistula With and Without Abscess: Assessment of Fistula Activity Using Diffusion-Weighted Magnetic Resonance Imaging.Iranian journal of radiology : a quarterly journal published by the Iranian Radiological Society · 2015Article
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Authors and funding
9 authors at 5 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo investigate the role of diffusion-weighted magnetic resonance imaging (DWMRI) in the diagnosis of abscess-complicating fistula-in-ano.
methodsThis retrospective study was approved by our Institutional Review Board and informed consent was waived. MRI examinations, including fat-suppressed T2-weighted turbo spin-echo (T2-TSE) MRI and DWMRI, of 24 patients with a fistula-in-ano, were reviewed by two independent readers for the presence and number of visible fistulas, conspicuity and apparent diffusion coefficient (ADC) measurement of suspected fistula tracks and pelvic collections. The reference standard was surgical with follow-up findings.
resultsSensitivity was 91.2 % [95 % CI: 76 %-98 %] for T2-weighted TSE MRI and 100 % [95 % CI: 90 %-100 %] for DWMRI detecting fistulas. ADC values were lower in abscesses than in inflammatory masses (P = 0.714.10(-6)). The area under the ROC curve was 0.971 and the optimal cut-off ADC value was 1.186 × 10(-3) mm(2)/s, yielding a sensitivity of 100 % [95 % CI: 77 %-100 %], a specificity of 90 % [95 % CI: 66 %-100 %], a positive predictive value of 93 % [95 % CI: 82.8 %-100 %] and a negative predictive value of 90 % [95 % CI: 78 %-100 %] for an abscess diagnosis. Fistula conspicuity was greater with DWMRI than with T2-TSE MRI for the two observers (P = 0.0034 and P = 0.0007).
conclusionDWMRI shows high sensitivity and specificity for the diagnosis of perianal abscesses and helps discriminate between an abscess and inflammatory mass. Conspicuity of fistulas-in-ano is greater with DWMRI than with T2-weighted TSE MRI. KEY POINTS: • DWMRI can differentiate between pelvic abscess and inflammatory mass. • DWMRI helps avoid gadolinium-chelate administration in patients with a suspected fistula-in-ano. • DWMRI provides high degrees of conspicuity for fistula-in-ano. • Conspicuity of fistulas is better with DWMRI imaging than with T2-TSE-weighted MRI.
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