Cammarota T, Discalzo L, Corno F, Dal Bo' R, Fiore L
Radiol Med. 1986 Nov;72(11):837-40.
Trans-rectal ultrasound with a 5 MHz probe was used to examine 16 patients who had perianal fistulas and 5 of them underwent one or more surgical explorations. In 11 cases, all surgically checked, sonography was able to demonstrate a pararectal abscess and accurately image the site, size, extension and--in some cases--the fistula itself. It can be advised that, using high frequency probes (7 or 10 MHz), transrectal ultrasound could provide even more exact diagnostic information in anorectal pathology.
使用5兆赫探头的经直肠超声检查了16例患有肛周瘘管的患者，其中5例接受了一次或多次手术探查。在全部接受手术检查的11例病例中，超声检查能够显示直肠旁脓肿，并准确成像其部位、大小、范围，在某些情况下还能成像瘘管本身。可以建议，使用高频探头（7或10兆赫），经直肠超声在肛肠病理学中可以提供更精确的诊断信息。
