| 李锦青,王健,唐康来,陈伟.肱骨头关节面直径对多层螺旋CT容积再现技术测量肱骨头扭转角的影响[J].中国医学影像技术,2007,23(2):292~294 |
| 肱骨头关节面直径对多层螺旋CT容积再现技术测量肱骨头扭转角的影响 |
| Influence of articular surface diameter of the humeral head in volume rendering technique measuring the humeral head retroversion angle with multi-slice spiral CT |
| 投稿时间：2006-09-23 修订日期：2006-11-11 |
| DOI： |
| 中文关键词: 肱骨 扭转角 体层摄影术,X线计算机 |
| 英文关键词:Humerus Retroversion angle Tomography, X-ray computed |
| 基金项目:本课题受重庆市自然科学基金资助(2004BB5245)。 |
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| 中文摘要: |
| 目的 探讨肱骨头关节面直径对多层螺旋CT容积再现测量肱骨头扭转角的影响。方法 收集24侧成人肩关节标本,行16层螺旋CT扫描,容积再现技术三维重建测量肱骨头扭转角。肱骨头关节面直径确定采用画圆拟合确定法及目测法,两种方法测得的肱骨头扭转角与二维CT测量法测得的肱骨头扭转角对照研究,行统计学处理。结果 肱骨头扭转角最小值11°,最大值53°,三组肱骨头扭转角数据为(26.4±9.9)°,(27.1±9.7)°,(27.3±9.7)°。经统计学检验三种方法测值无显著性差异。结论 肱骨头扭转角变异较大;多层螺旋CT容积再现目测法确定肱骨头关节面直径是获得肱骨头扭转角近端定义线更简单、更快捷的方法。 |
| 英文摘要: |
| Objective To evaluate the articular surface diameter of the humeral head affecting volume rendering technique (VRT) measuring the humeral head retroversion angle with multi-slice spiral CT (MSCT). Methods Twenty-four adult shoulder joint specimens were scanned with 16-slice spiral CT scanner, the humeral head retroversion angle was measured by volume rendering technique of three-dimensional reconstruction measurement method of MSCT. The articular surface diameter of the humeral head was respectively decided by fitting circle method and eye-measurement method, their humeral head retroversion angles were measured by volume rendering technique, the humeral head retroversion angle decided by two-dimensional CT method was control group. Three group' data of the humeral head retroversion angle were analyzed by the statistics. Results The humeral head retroversion angle ranged from 11° to 53°, the retroversion angles of three groups were (26.4±9.9)°, (27.1±9.7)°, (27.3±9.7)° respectively. The statistics showed that the results had no significant difference among the three methods. Conclusion The humeral head retroversion angle is markedly variable. The articular surface diameter of the humeral head decided by eye-measurement method is more simple and faster for the proximal reference axis of the volume rendering technique measuring the humeral head retroversion angle. |
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