Abstract: Objective To study the characterization of arterial blood supply in patients of the internal hemorrhoidals. Methods The caliber and flow of arterial blood supply in 80 patients with hemorrhoids of Goligher grades Ⅰ~Ⅳ and 20 healthy volunteers were examined by means of transperineal color Doppler ultrasound. Results Eighty patients with hemorrhoids of Goligher grades Ⅰ-Ⅳ were compared with 20 healthy volunteers by means of transperineal color Doppler ultrasound. The mean caliber of the arterial branches in the study group with hemorrhoids was 1.90±0.85 mm and 0.97±0.24 mm in the control group （P<0.001）. The arterial blood flow was significantly higher in patients with hemorrhoids47.3±28.3 cm/s than in the control group 15.6±5.0 cm/s, P<0.01. Conclusion Our findings demonstrate that increased caliber and arterial blood flow are correlated with the severity of hemorrhoids. Transperineal color Doppler ultrasound hopefully providy an appropriate method to choose the treatment in patients with hemorrhoids.

Key words: hemorrhoids, transperineal color Doppler ultrasound, caliber, arterial blood flow

摘要： 目的 研究各期内痔动脉血供特点。方法 采用经会阴多普勒超声分别对80例不同分度内痔患者（观察组）和20例志愿者（对照组）的痔供血动脉的血流量、管径大小进行检测。结果 通过经会阴彩色多普勒超声手段,80例Goligher分度Ⅰ~Ⅳ度痔疮患者与20名健康志愿者进行比较。观察组痔疮动脉供血分支的平均管径为1.90±0.85 mm;明显大于对照组0.97±0.24 mm,差异有统计学意义（P<0.001）。观察组痔疮供血动脉血流47.3±28.3 cm/s明显高于对照组15.6±5.0 cm/s,两组间差异具有统计学意义（P<0.01）。结论 痔疮供血动脉管径和血流与内痔病情程度呈正相关。经会阴彩色多普勒超声有望成为内痔患者合理选择治疗方式的一种检测手段。

关键词: 内痔, 经会阴多普勒超声, 供血动脉血流, 管径