多层螺旋CT三维重建测量髋臼外展角及前倾角的实验研究  

Experimental research of acetabular abduction angle and anteversion measurement by three- dimensional reconstruction of multi-slice spiral CT

作　　者：范新成[1] 刘峰[1] 魏开斌[1] 马振波[2] 张伟[1] 赵伟[1] 李军[1] 朱海涛[1] 初培罡[1] 葛东[1] 

机构地区：[1]山东省泰安市中心医院骨一科,271000 [2]山东省泰安市中心医院放射科,271000

出　　处：《中华临床医师杂志（电子版）》2014年第3期122-126,共5页Chinese Journal of Clinicians(Electronic Edition)

摘　　要：目的探讨应用多层螺旋CT(multi-slice spiral CT,MSCT)三维重建精确测量髋臼外展角及前倾角的新方法。方法选用30具成人完整骨盆标本共60个髋臼为研究对象,应用放射学方法及实际测量法分别对其外展角、前倾角进行测量,放射学方法采用数字化X线摄影(digital X-ray radiography,DR)及MSCT三维重建两种方法,实际测量采用量角器及数显角度仪两种方法。结果 MSCT重建法测得的髋臼外展角为48.61°±2.31°,前倾角为15.82°±4.62°,与实际测量结果比较,差异均无统计学意义(P>0.05);放射学方法与实际测得的髋臼外展角、前倾角分别比较,差异均无统计学意义(P>0.05)。结论 MSCT三维重建测量髋臼外展角及前倾角的结果准确,是一种可利用的全髋关节置换术前髋臼位相参数测量新方法。Objective To investigate a new method of three-dimensional reconstruction of multi-slice spiral CT in measurement of acetabular abduction angle and acetabular anteversion. Methods The research objects were 60 acetabulars of 30 pelvic specimens, acetabular abduction angle and acetabular anteversion were measured respectively by radiological and actual measurements. The first one using digital X-ray photography and three-dimensional reconstruction of multi-slice spiral CT. The second one using a protractor and digital goniometer two methods. Results The acetabular abduction angle and anteversion were（48.61±2.31）° and（15.82±4.62）° respectively, there was no statistically significant difference of these two angles between actual measurement and radiological measurement（P〉0.05）. There were no significant differences for each angle between radiological and actual measurements（P〉0.05）. Conclusions The measurement of acetabular abduction angle and anteversion by MSCT three- dimensional reconstruction were accurate, which provide a new and standardized method of measurement of acetabular abduction angle and anteversion. The digital goniometer provide an accurate and convenient new method for specimens＇ anatomical measurements.

关 键 词：髋臼 体层摄影术 螺旋计算机 关节成形术 外展角 前倾角 

分 类 号：R816.8[医药卫生—放射医学]