METHOD FOR MEASURING VERTEBRAL KINEMATICS FROM VIDEOFLUOROSCOPY

被引：37

作者：

CHOLEWICKI, J

MCGILL, SM

WELLS, RP

VERNON, H

机构：

[1] Occupational Biomechanics Laboratory, Department of Kinesiology, University of Waterloo, Ont.

[2] Canadian Memorial Chiropractic College, Toronto, Ont.

来源：

CLINICAL BIOMECHANICS | 1991年 / 6卷 / 02期

基金：

加拿大自然科学与工程研究理事会;

关键词：

LUMBAR KINEMATICS; SPINE; VIDEOFLUOROSCOPY; MEASUREMENT ERROR;

D O I：

10.1016/0268-0033(91)90002-8

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Optical distortions and digitizing errors must be minimized to obtain accurate measurements of spine kinematics from videofluoroscopic imaging. This study adapted and evaluated a method for reducing these errors. Image and signal processing techniques were applied to obtain lumbar spine kinematic measures from walking and trunk extension trials. Mean absolute error was conservatively estimated to be 0.69-degrees (SD = 0.43-degrees) for vertebral rotation, independent of angle, and 0.33 mm (SD = 0.25 mm) for linear measurements. Digital filtering was applied to further minimize random errors.

引用

页码：73 / 78

页数：6

共 9 条

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