Assessment of Tissue Damage from Ultrasonic, Pneumatic and Combination Lithotripsy

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https://hdl.handle.net/11299/104928

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Assessment of Tissue Damage from Ultrasonic, Pneumatic and Combination Lithotripsy

Authors

Cui, Yuqing

Sarkissian, Carl

Mohsenian, Kevin

Monga, Manoj

Published Date

2011-04-13

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Presentation

Abstract

Objective: To conduct a comparative evaluation of ultrasonic, pneumatic, and dual ultrasonic lithotripsy to predict the safety of probes on urinary tract tissue. Methods: Lithotriptors (medical device used to breakup kidney stones) tested were the Swiss Lithoclast Ultra (ultrasonic only - US, and ultrasonic-pneumatic combination US+P), and the Gyrus ACMI Cyberwand (dual ultrasonic). Fresh porcine ureters, bladders, and renal pelvis tissues were used for testing. A hands-free set up was used with each probe to vertically apply no pressure, 400 g, or 700 g of pressure for a duration of 3 seconds, 5 seconds or 180 seconds. Repetitive testing of each tissue/pressure/time combination was performed, for a total of 351 trials. Conclusion: All devices afforded a level of safety at tissue durations typical of inadvertent intraoperative contact (3-5 seconds), though the Lithoclast US-only was superior with regard to perforation for all tissue types. Overall, very similar results were observed between the Lithoclast US+P and Cyberwand.

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College of Science and Engineering

Department of Chemical Engineering and Materials Science

Department of Biomedical Engineering

The Cleveland Clinic Foundation

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Mentor: Manoj Monga MD (Urologic Surgery)

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UMTC Undergraduate Research Presentations and Papers (UROP)

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This research was supported by the Undergraduate Research Opportunities Program (UROP).

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Cui, Yuqing; Sarkissian, Carl; Mohsenian, Kevin; Monga, Manoj. (2011). Assessment of Tissue Damage from Ultrasonic, Pneumatic and Combination Lithotripsy. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/104928.

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