The effects of wave front distortion in ESWL

Timothy J. Hall, Michael F. Insana, Nannette M. Soller, Stanton J. Rosenthal, Robert E. Apfel

Research output: Contribution to journalConference article

Abstract

The effects of phase aberration in extracorporeal shock-wave lithotripsy (ESWL) were investigated. Some patients undergoing these treatments experience focal damage to normal soft tissue in areas away from the intended treatment site. The authors hypothesized that some of the reported soft tissue damage may be caused by mislocation of the focus due to phase aberration of the shock wave in fat layers. This hypothesis was tested by measuring acoustic pressure distributions under four propagational conditions involving the type of medium and type of aberrating layer. Shock-wave pressure distributions were measured in water and in an attenuating medium. A very durable hydrophone was used and shown to survive more than 6,000 shocks. The properties of the attenuating medium, a description of the hydrophone, and the observed effects of phase aberration in shock-wave propagation are reported.

Original languageEnglish (US)
Pages (from-to)1619-1622
Number of pages4
JournalUltrasonics Symposium Proceedings
Volume3
StatePublished - Dec 1 1990
EventProceedings of the IEEE 1990 Ultrasonics Symposium - Honolulu, HI, USA
Duration: Dec 4 1990Dec 7 1990

ASJC Scopus subject areas

  • Engineering(all)

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    Hall, T. J., Insana, M. F., Soller, N. M., Rosenthal, S. J., & Apfel, R. E. (1990). The effects of wave front distortion in ESWL. Ultrasonics Symposium Proceedings, 3, 1619-1622.