Magnetic Resonance Imaging of Fistula-in-ano
CYH Chan, KYK Wong, SKY Kwok, WK Wong, KW Tang
Hong Kong J Radiol 2015;18:243-52
DOI: 10.12809/hkjr1515300
Fistula-in-ano is a highly devastating disease due to its high morbidity. In order to achieve excellent surgical outcome, preoperative evaluations are essential. Magnetic resonance imaging (MRI) allows high spatial resolution images and is highly accurate in delineating the type and extent of a perianal fistula. MRI has also been shown to markedly diminish recurrence by improving preoperative planning. Therefore, preoperative pelvic MRI has already become routine in the management of perianal fistula. Adequate knowledge of the relevant pelvic anatomy, pathophysiology, fistula classification, and their implications on the therapeutic options is the key for proper MRI assessment of perianal fistula. This pictorial essay discusses these topics.
中文摘要
肛瘻的磁共振成像
陳彥豪、黃汝麒、敦啟欣、王旺根、鄧國穎
肛瘺是一種嚴重影響生活質量的疾病。要有優良的手術效果，術前評估至為關鍵。磁共振成像（MRI）有高空間分辨率，評估肛周瘺的類型和程度亦具高度準確性。MRI能改善術前計劃以減少復發，所以盆腔術前MRI已被納入常規程序當中。要正確評估肛周瘺的MRI，必須對相關的盆腔解剖、病理生理學、內瘺的分類，以及其對治療方案的影響有充分了解。本圖案綜述回顧討論相關內容。