Histotripsy Erosion of Model Urinary Calculi

Histotripsy erosion of model urinary calculi.

BACKGROUND AND PURPOSE Histotripsy is a pulsed focused ultrasound technology in which initiation and control of acoustic cavitation allow for precise mechanical fractionation of tissues. The present study examines the feasibility of using histotripsy for erosion of urinary calculi. MATERIALS AND METHODS Histotripsy treatment was delivered from a 750-kHz transducer in the form of 5-cycle acous...

Urinary calculi.

IJANTITATIVE CHEMICAL ANALYSES of urinary calculi have been done in these laboratories for some twenty years. During this time almost two thousand stones have been examined. In the early days of this period, the only quantitative method available was that of a complete analysis of the inorganic ions and organic compounds present, which was quite difficult and tedious. After the development of t...

Exhibition of Urinary Calculi

The Etiology Of Urinary Calculi

Urinary Calculi in Germfree Rats

In a colony of germfree rats 50 per cent of the males had urinary calculi composed of calcium citrate and calcium oxalate. Genetically closely related conventional animals on the same sterilized diet did not present a single case of stone formation. The tendency to calculus formation disappeared when germfree animals were contaminated with the intestinal flora from conventional rats. The calcul...