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Research Journal of Medical Sciences

ISSN: Online 1993-6095
ISSN: Print 1815-9346
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Comparative Analysis of Transcutaneous Perianal Ultrasonography and Magnetic Resonance Imaging in Evaluating Perianal Fistulas: A Cross‐Sectional Study

Rashi Garg, Rajesh Gupta, Ritema Mangal, Astha Mehra and Harsh J. Bhomaj
Page: 516-520 | Received 27 Oct 2023, Published online: 20 Dec 2023

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https://doi.org/10.36478/10.59218/makrjms.2023.12.516.520

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Abstract

Perianal fistula is an abnormal communication between anal canal/rectum and skin with high morbidity and recurrence. These are common affliction in lower socio‐economic society. Therefore calls for need of less expensive, easily available and repeatable method that can adequately evaluate perianal fistulas and abscesses. To compare the diagnostic accuracy of the high resolution transcutaneous perianal ultrasonography(TPUS) compared with the findings of MRI in the evaluation of perianal fistula. A hospital based cross‐sectional study on 50 patients who underwent TPUS and magnetic resonance imaging(MRI). The findings of both modalities were then classified as per Park’s classification and St. James classification and compared. Study was conducted on 50 patients of which 43 were males and 7 were females with most patients belonging to age group of 30‐60 years and average age being 43.3 years. Internal opening of fistula was detected in 33 patients on TPUS however, 42 internal openings were diagnosed on MRI. The sensitivity of TPUS to detect primary tracts in our study was 97.9 % and was 79% sensitive in identification of internal openings. As TPUS is real time imaging the movememt of air foci and echoes within the tracts on on valsava manoeuvre, increased echogenicity of surrounding fat on B‐mode and surrounding hypervascularity on colour Doppler helps in distinguishing the active and fibrosed. Transcutaneous perianal ultrasonography can potentially be used as first line investigation for perianal fistula and its rerecurrence. Further investigations are required in cases where a doubt exists for internal opening or a high fistula.

How to cite this article:

Rashi Garg, Rajesh Gupta, Ritema Mangal, Astha Mehra and Harsh J. Bhomaj. Comparative Analysis of Transcutaneous Perianal Ultrasonography and Magnetic Resonance Imaging in Evaluating Perianal Fistulas: A Cross‐Sectional Study.
DOI: https://doi.org/10.36478/10.59218/makrjms.2023.12.516.520
URL: https://www.makhillpublications.co/view-article/1815-9346/10.59218/makrjms.2023.12.516.520