Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/122849
Title: SUBJECT-SPECIFIC 4D ULTRASOUND LIVER MODEL AND DYNAMIC PHANTOM FOR ROBOTIC-ASSISTED LIVER BIOPSY STUDY
Authors: LI CHENG
Keywords: Ultrasound image, liver motion analysis, image guided biopsy, dynamic liver phantom, simulated tumor model, biopsy system
Issue Date: 20-Aug-2015
Citation: LI CHENG (2015-08-20). SUBJECT-SPECIFIC 4D ULTRASOUND LIVER MODEL AND DYNAMIC PHANTOM FOR ROBOTIC-ASSISTED LIVER BIOPSY STUDY. ScholarBank@NUS Repository.
Abstract: It is challenging to accurately perform liver intervention procedures such as biopsy and ablation in clinical practice, where the target (a tumor, usually) is moving due to respiratory liver motion. In this study, three aspects in particular are focused on, namely image processing, phantom study, and experimental study, to develop new techniques and look for practical solutions to this problem. Specifically, a subject-specific and respiration-corrected 4D ultrasound liver model is introduced to visualize and analyze liver motion. In addition, a novel dynamic liver phantom is presented, for the development and validation of an image-guided biopsy system. Finally, a unique Vaseline-based technique, for easy creation of simulated tumors inside livers to provide ideal testing objects is described. The detailed evaluations of the proposed methods are also presented in this study. More animal tests with the image-guided biopsy system will be conducted in the next stage of our research.
URI: http://scholarbank.nus.edu.sg/handle/10635/122849
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