These projects are in collaboration with Dr. Mark E. Schweitzer, NYU School of Medicine, Hospital for Joint Diseases.
Bicipital Groove of the Proximal Humerus
The bicipital groove is an osseous groove formed in the humeral head by the medial and lateral tuberosities. It serves to retain the long head of the biceps brachii. In this project, we investigate the relationship between the 3D shape of the bicipital groove and the incidence of pathology of the long biceps tendon.
Bicipital groove segmentation from CT data.
Medial-based shape representation of the bicipital groove.
Two views of a humeral head extracted from MRI, with the bicipital groove indicated.
Establishing a relationship between 3D bicipital groove surface and 2D thickness fields, for qualitative inspection.
Quantitative inspection, in physical units, of measured thicknesses in a 2D thickness fields.
Supraspinatus of the Rotator Cuff
The supraspinatus is one of several muscles making up the rotator cuff of the shoulder. In this study, we examine the relationship between the 3D shape of the supraspinatus and its various pathological conditions. Diagnosis of supraspinatus pathology is currently notoriously difficult without the use of invasive athroscopic techniques.
Views seen by radiologist using supraspinatus outlining tool.
Contours drawn by radiologist, visualized in 3D, with interpolated muscle surface.
Segmented supraspinatus shown in context of the MRI from which it was extracted.
Video showing several perspectives of a torn supraspinatus.
Video showing several perspectives of a normal supraspinatus.
Video showing several perspectives of the set of expert-drawn contours from which the above surface was interpolated.
Hoffa's Fat Pad
Hoffa's fat pad is an infrapatellar (lying underneath the knee cap) fatty structure. In this project we investigate the 3D shape deformations of Hoffa’s fat pad, between knee flexion and extension as a possible indication of a bio-mechanical behavior (cushioning) in addition to the classical energy storage function.
Deformations of Hoffa's Fat Pad for a 2-angle flexion/extension.
Knee, Hoffa's fat, rigid and nonrigid registration, and deformation field for a multi-angle flexion/extension experiment.
|
PublicationsConference
1.
3D Shape Analysis of the Supraspinatus Muscle
Ward, A. D., Hamarneh, G., Ashry, R., Schweitzer, M. E.: "3D Shape Analysis of the Supraspinatus Muscle", MICCAI Joint Disease Workshop, pp. 96-103, 2006
2.
3D Shape Description of the Bicipital Groove: Correlation to Pathology
Ward, A. D., Hamarneh, G., Schweitzer, M. E.: "3D Shape Description of the Bicipital Groove: Correlation to Pathology", MICCAI Joint Disease Workshop, pp. 80-87, 2006
3.
3D Shape Description of the Bicipital Groove of the Proximal Humerus
Ward, A. D., Schweitzer, M. E., Hamarneh, G.: "3D Shape Description of the Bicipital Groove of the Proximal Humerus”, Conference on Physiology, Function, and Structure from Medical Images, Proc. of SPIE Medical Imaging, 2006
4.
Computational and Visualization Techniques for Understanding the Shape Variations of the Bicipital Groove of the Proximal Humerus
Ward, A. D., Schweitzer, M. E., Hamarneh, G.: "Computational and Visualization Techniques for Understanding the Shape Variations of the Bicipital Groove of the Proximal Humerus". Annual meeting of the Society for Computer Applications in Radiology, pp. 47-49, 2006
5.
Multi-angle deformation analysis of Hoffa's fat pad
Stevenson, K., Schweitzer, M. E., and Hamarneh, G.: "Multi-angle deformation analysis of Hoffa's fat pad", Conference on Physiology, Function, and Structure from Medical Images, Proc. of SPIE Medical Imaging, pages 703-711, 2006
6.
Deformation Analysis of Hoffa's Fat Pad from CT images of Knee Flexion and Extension
Hamarneh, G., Chu, V., Bordalo-Rodrigues, M., Schweitzer, M. E.: "Deformation Analysis of Hoffa's Fat Pad from CT images of Knee Flexion and Extension", Conference on Physiology, Function, and Structure from Medical Images, Proc. of SPIE Medical Imaging, 527-534, 2005
Journal
7.
3D Bicipital Groove Shape Analysis and Relationship to Tendopathy
Ward, A. D., Hamarneh, G., Schweitzer, M. E.: "3D Bicipital Groove Shape Analysis and Relationship to Tendopathy", Journal of Digital Imaging, 2006
8.
3D Shape Analysis of the Supraspinatus Muscle: A Clinical Study of the Relationship between Shape and Pathology
Ward, A. D., Hamarneh, G., Ashry, R., Schweitzer, M. E.: "3D Shape Analysis of the Supraspinatus Muscle: A Clinical Study of the Relationship between Shape and Pathology", Academic Radiology, 2007 (to appear).
|
