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目的:探讨肛门直肠周围脓肿的MR表现与诊断价值。材料与方法:16例肛周脓肿患者,行MR平扫检查,检查结果与手术对照。结果肛周脓肿6例,肛瘘9例,还有1例误诊为肛周脓肿,检查结果与手术结果基本一致。结果:在T1WI图像上,肛周脓肿表现为条状及片状低信号,T2WI图像上,瘘管及肛周脓肿表现为条状及片状高信号,DWI呈高信号。结论:MR是一种既快速又无损伤、且具有相当高准确性的肛周脓肿检查方法,能给外科手术提供所需的解剖和病理资料。
Objective: To investigate the MR findings and diagnostic value of anorectal abscess. Materials and Methods: 16 cases of perianal abscess patients underwent MR plain scan examination results and surgical control. Results Perianal abscess in 6 cases, 9 cases of anal fistula, and 1 case misdiagnosed as perianal abscess, the test results and surgical results are basically the same. Results: On the T1WI images, the perianal abscess showed the stripe and flake low signals. On the T2WI images, the fistula and perianal abscess showed the stripe and flake high signal, and DWI showed high signal. CONCLUSIONS: MR is a fast, nondestructive and highly accurate method of perianal abscess that provides the anatomy and pathology necessary for surgery.