Format

Send to

Choose Destination
J Endourol. 2013 Oct;27(10):1183-6. doi: 10.1089/end.2013.0315. Epub 2013 Sep 14.

Focused ultrasonic propulsion of kidney stones: review and update of preclinical technology.

Author information

1
1 Division of Urology, Department of Veteran Affairs Medical Center , Seattle, Washington.

Abstract

A noninvasive tool to reposition kidney stones could have significant impact in the management of stone disease. Our research group has developed a noninvasive transcutaneous ultrasound device. A review and update of the current status of this technology is provided.

DISCUSSION OF TECHNOLOGY:

Stone propulsion is achieved through short bursts of focused, ultrasonic pulses. The initial system consisted of an eight-element annular array transducer, computer, and separate ultrasound imager. In the current generation, imaging and therapy are completed with one ultrasound system and a commercial probe. This generation allows real-time ultrasound imaging, targeting, and propulsion. Safety and effectiveness for the relocation of calyceal stones have been demonstrated in the porcine model.

ROLE IN ENDOUROLOGY:

This technology may have applications in repositioning stones as an adjunct to lithotripsy, facilitating clearance of residual fragments after lithotripsy, expelling de novo stones, and potentially repositioning obstructing stones. Human trials are in preparation.

PMID:
23883117
PMCID:
PMC3787400
DOI:
10.1089/end.2013.0315
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Atypon Icon for PubMed Central
Loading ...
Support Center