Bone and joint modeling from 3D knee MRI: feasibility and comparison with radiographs and 2D MRI

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• 作者：Vibhor Wadhwa^a ; ^b ; Vidur Malhotra^b ; Yin Xi^b ; Shaun Nordeck^b ; Katherine Coyner^c ; Avneesh Chhabra^b ; ^{avneesh.chhabra@utsouthwestern.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：3D ; MRI ; Knee ; Modeling ; Joint space
• 刊名：Clinical Imaging
• 出版年：2016
• 出版时间：July-August 2016
• 年：2016
• 卷：40
• 期：4
• 页码：765-768
• 全文大小：766 K

文摘

The purpose was to evaluate feasibility of bone and joint segmentations from three-dimensional magnetic resonance imaging (3D MRI).

Methods

Segmented joint models from 3D MRI data set were obtained for 42 patients. Blinded angular and joint space measurements were performed on 3D MRI model, two-dimensional (2D) MRI, and radiography (XR).

Results

Medial joint space was similar on both XR and 3D MRI (P =.3). The XR measurements were statistically different but closer to 3D MRI for lateral patellar tilt angle, patellar tendon length, and lateral knee joint space, whereas 2D MRI measurements were closer to XR in terms of trochlear depth, sulcal angle, and patellar length.

Conclusion

3D bone and joint segmentations are feasible from isotropic MRI data sets.