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The Minimally Invasive Procedures (MIP) in orthopedics have grown rapidly worldwide, as clinical results indicate that patients who undergo MIP typically experience minimized blood loss, smaller incision and shorter hospital stays. For most MIP, a preoperative 3D model of the patient anatomy is usually generated in order to plan the surgery. The challenge in MIP consists in finding the correspondence...
Three-dimensional freehand ultrasound has found several clinical applications, such as in Computer Assisted Orthopaedic Surgery CAOS. Since the last decade, the US applications in CAOS allow the surgeon to objectively plan out critical surgical variables, and would result in improved surgical outcomes. A key step of all the freehand ultrasound imaging systems is calibration. This paper is devoted...
This paper describes a fast procedure for the calibration of an ultrasound (US) probe using a 3D optical localizer. This calibration step allows us to obtain the 3D position of any point located on the 2D ultrasonic (US) image. To carry out correctly this procedure , a phantom of known geometric properties is probed and these geometries are found in the US images. A segmentation step is applied in...
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