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Proceedings Paper

Laser lithotripsy retropulsion varies with stone mass
Author(s): Michael E. Robinson; Joel M. H. Teichman
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Paper Abstract

OBJECTIVES: We tested the hypothesis that retropulsion varies with stone size. METHODS: Stone phantoms of uniform cube dimensions were constructed and irradiated with Ho:YAG energy (0.5 J - 3.5 J). Displacement was measured. RESULTS: At any given pulse energy, retropulsion decreased as stone size increased, p<0.05. At any given stone size, retropulsion increased as pulse energy increased, p<0.05. CONCLUSIONS: A strategy of low pulse energy at high repetition rate is appropriate for ureteral stones. For larger bladder and renal stones, retropulsion is minimal even with high pulse energies. More study is warranted.

Paper Details

Date Published: 14 March 2013
PDF: 5 pages
Proc. SPIE 8565, Photonic Therapeutics and Diagnostics IX, 85651B (14 March 2013); doi: 10.1117/12.2007516
Show Author Affiliations
Michael E. Robinson, The Univ. of British Columbia (Canada)
Joel M. H. Teichman, The Univ. of British Columbia (Canada)

Published in SPIE Proceedings Vol. 8565:
Photonic Therapeutics and Diagnostics IX
Andreas Mandelis; Brian Jet-Fei Wong; Anita Mahadevan-Jansen; Henry Hirschberg M.D.; Hyun Wook Kang; Nikiforos Kollias; Melissa J. Suter; Kenton W. Gregory M.D.; Guillermo J. Tearney M.D.; Stephen Lam; Bernard Choi; Steen J. Madsen; Bodo E. Knudsen M.D.; E. Duco Jansen; Justus F. Ilgner M.D.; Haishan Zeng; Matthew Brenner; Laura Marcu, Editor(s)

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