A method is presented that aims at finding the central vessel axis in two and three dimensional angiographic images based on a single user defined point. After the vessels in the image are enhanced using a special pur...
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A 3D ultrasound system suitable for laparoscopic surgery using a novel configuration of a magneto-optic hybrid 3D sensor is reported. A miniature magnetic sensor with five degrees of freedom (5D) is combined with an o...
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This paper presents a new, practical approach for 3D reconstruction of the human jaw from a sequence of intra-oral images. This research has an immense value in various dental practices including implants, tooth align...
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This paper presents an original knowledge driven automatic contour detection approach based on neuro-fuzzy techniques. The method simulates a trained virtual autonomous mobile robot that delineates the organ outlines ...
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Volume registration, by means of minimizing rms pixel value differ- ences, was tested on pairs of pelvic CT scans in a perturbation experiment to determine its robustness. The tests included registration of 9 scans to...
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A brain mould was constructed by converting the digital surface of a high quality 3D magnetic resonance (MR) data set to a real model, using a stereo lithography apparatus (SLA). The tissue mimicking material (TMM) po...
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In this paper we describe the clinical use of an in-house mutual information-based image registration system for improving target volume definition in conformal radiotherapy treatment planning. This system enables a c...
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One of the difficulties in surgical navigation based on preoperative image information is intra-operative deformation of the organs consisting of soft tissues. In liver surgery, liver shape is deformed dynamically due...
ISBN:
(纸本)3540426973
One of the difficulties in surgical navigation based on preoperative image information is intra-operative deformation of the organs consisting of soft tissues. In liver surgery, liver shape is deformed dynamically due to patient respiration, posture change and surgical operations. Such intra-operative liver deformation includes so called large displacement, which requires much computation cost for numerical simulation based on non-linear FEM. Herline [Herline99] reported rigid liver surface registration for such purpose. In this study, we propose a new method of modal representation of liver deformation applied for intra-operative non-rigid registration in image-guided liver surgery. Several experiments with synthetic range data were performed based on error factor analysis.
This paper describes the basis and behavior of segmentation of single figures in 3D by deformable m-reps models. Results are given for the segmentation of kidneys from CT and of hippocampi from MR images. Special focu...
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This paper describes the prototype of an integrated system for cone- beam CT guided radiotherapy of prostate cancer. The system works by acquir3;ing a 3D image set just prior to treatment delivery. This image set ...
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