Objective To probe the methods and clinical value of transrectal ultrasound (TRUS) with head scanning probe in detecting upper rectal carcinoma.
目的探讨端扫式直肠超声对高位直肠癌患者进行术前腔内检查（TRUS）的方法与临床价值。
47 rectal carcinoma included: 3 in upper rectum, 4 in middle rectum, 40 in lower rectum.
47例直肠癌包括：3例上段直肠癌，4例中段直肠癌，40例下段直肠癌。
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