In total hip arthroplasty(thA), complications such as dislocation, loosening, or wearing of the sliding surface are serious clinical problem, and the daily motion of patients has been limited to some extent. However, ...
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ISBN:
(数字)9783540457862
ISBN:
(纸本)3540442243
In total hip arthroplasty(thA), complications such as dislocation, loosening, or wearing of the sliding surface are serious clinical problem, and the daily motion of patients has been limited to some extent. However, it is hard to recognize the situation of the components during movement and to predict complications. We have developed the 4-dimensional human model that can visualize the motion of the patient's skeleton and estimate the risk of complications using computer simulation. At first we constructed a 3-dimensional skeletal model of the patient's lower limb from CT data. then we acquired motion capture data from an infrared position sensor (VICON512, VICON Motion Systems, UK), and drove the patient's skeletal model corresponding to the captured data. thus we were able to predict the prognosis after the installation of the artificial hip joint, and we have examined the accuracy of the measurements in this system following an experiment using an open MRI.
For applications of volume visualization in medicine, it is important to assure that the 3D images show the true anatomical situation, or at least to know about their limitations. In this paper, various methods for ev...
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the Ilizarov method is used to correct bone deformities by using an adjustable frame to simultaneously perform alignment and distraction of an open-wedge osteotomy. We have adapted the idea of fixation-based surgery, ...
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We describe a new algorithm for 3D, and potentially higher, volume rendering. this algorithm takes advantage of the shear-warp factorization technique to reduce matrix computing and a hierarchical data structure for b...
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Accurate detection of prostate boundaries is required in many diagnostic and treatment procedures for prostate diseases. In this paper, a new approach based on level set method to perform 3D prostate surface detection...
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A large number of test images and their "ground truth" segmentations are needed for performance characterization of the many image segmentation methods. In this work we developed a methodology to form a prob...
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A semi-automated method is presented for the determination of the degree of stenosis of the internal carotid artery (ICA) in 3D contrast-enhanced (CE) MR angiograms. Hereto, we determined the central vessel axis (CA),...
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A technique for assessing the impact of lossy wavelet-based image compression on signal detection tasks is presented. A medicalimage’s value is based on its ability to support clinical decisions, including detecting...
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In order to simulate intravascular interventions, a discretized representation of a guide wire is introduced which allows modeling of guide wires with different physical properties. An algorithm for simulating the pro...
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