Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (9): 1398-1403.doi: 10.3969/j.issn.2095-4344.2014.09.015

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Three-dimensional virtual reality imaging combined with two-dimensional ultrasound images for the visual evaluation of hip dysplasia in infants

Li Ping, Zhang Yuan-zhi, Dou Rui, Guo Zhi-ying   

  1. Department of Ultrasound, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Online:2014-02-26 Published:2014-02-26
  • About author:Li Ping, Master, Associate chief physician, Department of Ultrasound, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Inner Mongolia Autonomous Region, No. 2012MS1186; Scientific Research Projects in Universities of Inner Mongolia Autonomous Region, No. NJZC12161

Abstract:

BACKGROUND: Ultrasound has been widely used in developmental hip dysplasia screening in infants and young children, but there are significant differences among different inspection findings, even in the reexamination by the same examiner. Therefore, the accuracy of ultrasound imaging in the diagnosis is of insufficient evidence.
OBJECTIVE: Through virtual reality three-dimensional reconstruction images showing the structure of acetabulum and femoral head space, to obtain a new parameter in order to enrich measurement standards of Graf ultrasonic diagnosis technology and to further improve the credibility of the diagnosis of developmental dysplasia of the hip. 
METHODS: Ten fresh cadaver specimens of Chinese infants were selected, including five males and five females. Two-dimensional ultrasonic method was employed for hip screening, and at the same time, multi-slice spiral CT was used for three-dimensional reconstruction followed by volume reconstruction and fitting of surface reconstruction to display the anatomic structure around the hip and to simulate Graf’s two-dimensional ultrasound method to measure a and β angles on three-dimensional virtual reality images.
RESULTS AND CONCLUSION: As confirmed by three-dimensional reconstruction, Graf’s two-dimensional ultrasound could be used to measure a and angles, truly reflecting the development of bony and cartilaginous acetabulum. Graf’s two-dimensional ultrasound contributed to the proper evaluation of beonatal hip dysplasia, which can be used as a routine examination for developmental dysplasia of the hip. These indicate that to master Graf’s ultrasound technology and strictly grasp the evaluation standards for developmental dysplasia of the hip is the important guarantee for diagnosis of developmental dysplasia of the hip.


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


全文链接:

Key words: ultrasonography, imaging, three-dimensional, hip joint, tomography, spiral computed, acetabulum

CLC Number: