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。
Objective To probe the methods and clinical value of transrectal ultrasound (TRUS) with head scanning probe in detecting upper rectal carcinoma.
方法采用经胸超声（TTE）检查17例夹层动脉瘤患者，观察主动脉管腔内有无膜样回声及管腔内血流情况。
Methods 17 patients were examined by trans thoracic echocardiography(TTE), and observed the membrane shape ultrasonic echo, blood stream change in aortic canal.
方法采用经胸超声（TTE）检查17例夹层动脉瘤患者，观察主动脉管腔内有无膜样回声及管腔内血流情况。
Methods 17 patients were examined by trans thoracic echocardiography(TTE), and observed the membrane shape ultrasonic echo, blood stream change in aortic canal.
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