A feasibility study of a 3D ultrasound image system for extracorporeal shock wave lithotripsy tracking of renal stones
| Autor: | Jia-jyun Li, 李嘉浚 |
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| Rok vydání: | 2009 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 97 There Extracorporeal shock wave lithotripsy is the most effective and common practice for the treatment of renal calculi. Even though this type of treatment has been available for many years, it is far away from an optimal state, because breathing induces movement onto the abdominal organs. For this reason shock waves hit not only the kidney stone but also other healthy tissue, resulting in damage on damaging the kidney and other organs. Moreover, the rate for recurrence of stone is increased since fragments remained in the kidney due to incomplete treatment. Previous research has presented an improved method that can follow the movement of the kidney and move the shock wave generator accordingly so that all shock waves hit the kidney stone. The disadvantage of this method is that the ultrasound imaging that was used for the tracking is two dimensional. Therefore the system does not have the ability to follow a three dimensional kidney stone path at all times. This fact makes the system difficult to be accepted by the majority of medical technicians. The research presented here uses registration of the ultrasound images with a three dimensional image acquired at the beginning of the treatment in order to overcome existing problems. Measurements with phantom are estimated for improving the effectiveness of the proposed method. This research is an attempt to produce a system that will be more acceptable for medical technicians. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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