基于2D/3D配准技术测量颈椎间孔形态学的精度研究

doi:10.13418/j.issn.1001-165x.2016.05.004

中国临床解剖学杂志 ›› 2016, Vol. 34 ›› Issue (5): 495-498.doi: 10.13418/j.issn.1001-165x.2016.05.004

基于2D/3D配准技术测量颈椎间孔形态学的精度研究

张鑫涛¹，　叶强¹，　李鉴轶²，　彭鹏²，　李绍林¹

1. 南方医科大学第三附属医院影像科，广州 510630；　2. 南方医科大学解剖学教研室，广东省医学生
物力学重点实验室，广州 510515

收稿日期:2016-04-11 出版日期:2016-09-25 发布日期:2016-10-14
通讯作者: 李鉴轶，博士，副教授， Tel:020-62789091, E-mail: wuxili74@126.com
作者简介:张鑫涛（1985-），男，广东汕头人，硕士，主要从事数字医学研究，E-mail:eleven926@126.com
基金资助:
广东省省级科技计划项目（2012B091100314，2014A020212200，2015A040404022，2015B010125006，2015B010125005

The precision of the 2D/3D registration techniques in measuring the cervical intervertebral foramen morphology

ZHANG Xin-tao¹， YE Qiang¹， LI Jian-yi²， PENG Peng²， LI Shao-Lin¹

1. Department of Radiology, The Third Affiliate Hospital, Southern Medical University, Guangzhou 510630，China; 2.Department of Anatomy, Guangdong Provincial Key Laboratory of Medical Biomechanics, Southern Medical University, Guangzhou 510515，China

Received:2016-04-11 Online:2016-09-25 Published:2016-10-14

摘要/Abstract

摘要：

目的　探讨基于2D/3D配准技术测量离体颈椎标本椎间孔形态学的精度。方法　获取16具颈椎离体标本的螺旋CT影像，通过三维重建获得相应标本的三维模型。然后改变标本的体位，再次行CT扫描并分别拍摄各具离体标本正侧位X线平片，采用2D/3D图像配准技术还原拍摄平片时颈椎的三维位置。利用Rapidform XOR3软件测量配准前与配准后C2/3至C6/7双侧的椎间孔面积、前后径和上下径。结果　共测得椎间孔的面积、前后径和上下径各158个，经配对样本t检验，配准后椎间孔的面积、前后径、上下径与配准前相比较，结果无显著性差异(P>0.05)；椎间孔面积的准确度为96.77%、精确度为（1.27±1.16）mm2，前后径的准确度为94.35%、精确度为（0.30±0.27）mm，上下径的准确度为96.14%、精确度为（0.32±0.28）mm。结论　应用2D/3D配准技术测量颈椎间孔的形态学参数具有较高的准确度和精确度。

关键词: 颈椎, 椎间孔, 2D/3D配准

Abstract:

Objective　To investigate the 2D/3D registration techniques in measurement accuracy of cervical intervertebral foramen morphology in specimens.　Method　Spiral CT images from 16 cervical specimens were collected to obtain a three-dimensional model through three-dimensional reconstruction. CT scan and lateral radiography with each isolated specimens after changed the position of the specimen were performed. 2D/3D image registration techniques were used to restore the cervical spine’s three-dimensional position where we had taken the X-rays. The bilateral foramen area, anteroposterior diameter and vertical diameter from C2/3 to C6/7 before and after registration were measured using Rapidform XOR3.　Results　The number of the foramen area, anteroposterior diameter and vertical diameter were measured were 158. Compared with the pre-registration, the registration area of the intervertebral foramen, anteroposterior diameter, and vertical diameter showed no significant difference (P>0.05) by paired samples t-test. The accuracy of the intervertebral foramen area was 96.77%, with a precision of (1.27±1.16) mm2, the accuracy of the anteroposterior diameter was 94.35% with a precision of (0.30±0.27) mm, the diameter of the upper and lower accurate degree was 96.14% with a precision of (0.32±0.28) mm.　Conclusion　Application of 2D/3D registration techniques to measure cervical intervertebral morphological parameters was high in accuracy and precision.

Key words: Cervical spine, Intervertebral foramen, 2D/3D registration

张鑫涛,叶强,李鉴轶,彭鹏,李绍林. 基于2D/3D配准技术测量颈椎间孔形态学的精度研究[J]. 中国临床解剖学杂志, 2016, 34(5): 495-498.

ZHANG Xin-tao,YE Qiang,LI Jian-yi,PENG Peng,LI Shao-Lin. The precision of the 2D/3D registration techniques in measuring the cervical intervertebral foramen morphology[J]. Chinese Journal Of Clinical Anatomy, 2016, 34(5): 495-498.

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基于2D/3D配准技术测量颈椎间孔形态学的精度研究

The precision of the 2D/3D registration techniques in measuring the cervical intervertebral foramen morphology

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