A system for 3-D reconstruction of a patient-specific surface model from calibrated X-ray images.
This paper presents a system for 3-D reconstruction of a patient-specific surface model from calibrated X-ray images. Our system requires two X-ray images of a patient with one acquired from the anterior-posterior direction and the other from the axial direction. A custom-designed cage is utilized in our system to calibrate both images. Starting from bone contours that are interactively identified from the X-ray images, our system constructs a patient-specific surface model of the proximal femur based on a statistical model based 2D/3D reconstruction algorithm. In this paper, we present the design and validation of the system with 25 bones. An average reconstruction error of 0.95 mm was observed.
Zheng
G
G
ARTORG Research Center, University of Bern, Switzerland. guoyan.zheng@ieee.org
Schumann
S
S
D002138:Calibration; D004867:Equipment Design; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D007866:Leg / Q000000981:diagnostic imaging*; D008953:Models, Anatomic; D011859:Radiography