Model-updated image-guided liver surgery: Preliminary results using surface characterization
نویسندگان
چکیده
منابع مشابه
Model-updated Image-guided Liver Surgery: Preliminary results using Intra-operative surface characterization
The current protocol for image-guidance in liver surgeries involves rigid registration algorithm. Systematic studies have shown that the liver can deform up to 2cms during surgeries thereby compromising the accuracy of the surgical navigation systems. Compensating for intraoperative deformations using computational models has shown promising results. In this work, we follow up the initial rigid...
متن کاملModel-updated image-guided liver surgery: preliminary results using surface characterization.
The current protocol for image guidance in open abdominal liver tumor removal surgeries involves a rigid registration between the patient's operating room space and the pre-operative diagnostic image-space. Systematic studies have shown that the liver can deform up to 2 cm during surgeries in a non-rigid fashion thereby compromising the accuracy of these surgical navigation systems. Compensatin...
متن کاملSurface Registration for Use in Interactive Image-Guided Liver Surgery
OBJECTIVE Liver surgery is difficult because of limited external landmarks, significant vascularity, and inexact definition of intra-hepatic anatomy. Intra-operative ultrasound (IOUS) has been widely used in an attempt to overcome these difficulties, but is limited by its two-dimensional nature, inter-user variability, and image obliteration with ablative or resectional techniques. Because the ...
متن کاملValidation of model-based deformation correction in image-guided liver surgery via tracked intraoperative ultrasound: preliminary method and results
Soft tissue deformation represents a significant error source in current surgical navigation systems used for open hepatic procedures. While numerous algorithms have been proposed to rectify the tissue deformation that is encountered during open liver surgery, clinical validation of the proposed methods has been limited to surface based metrics and sub-surface validation has largely been perfor...
متن کاملImage-guided surgery: preliminary feasibility studies of frameless stereotactic liver surgery.
BACKGROUND Liver surgery can be difficult because there are few external landmarks defining hepatic anatomy and because the liver has significant vascularity. Although preoperative tomographic imaging (computed tomography or magnetic resonance imaging) provides essential anatomical information for operative planning, at present it cannot be used actively for precise localization during surgery....
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ژورنال
عنوان ژورنال: Progress in Biophysics and Molecular Biology
سال: 2010
ISSN: 0079-6107
DOI: 10.1016/j.pbiomolbio.2010.09.014