@article{af0f4dd3c09b4d0a87efe71ff7d7963c,
title = "Insonation of fixed porcine kidney by a prototype sector-vortex-phased array applicator",
abstract = "The sector-vortex applicator, an ultrasound phased array with a geometric focus having multiple sectors and tracks, can directly synthesize, without scanning, diffuse focal patterns useful for hyperthermia. A perfused tissue phantom, consisting of an alcohol-fixed porcine kidney with thermocouples placed in the cortex, is insonated by a prototype sector-vortex applicator with 16 sectors and two tracks at an ultrasound frequency of 750 kHz. Steady-state temperature distributions are measured for a wide range of perfusion rates. Results demonstrate that the radius of the heated region can be controlled effectively by choosing the focal mode of the applicator as it is predicted by theoretical analysis.",
keywords = "Diffused foci, Phased array, Tissue phantom, Ultrasound",
author = "Umemura, {S. I.} and Holmes, {K. R.} and Frizzell, {L. A.} and Cain, {C. A.}",
note = "Funding Information: The authors thank S. Saito, of the Central Research Laboratory, Hitachi Ltd, Tokyo, Japan (HCRL), for his careful redesign for precision machining of the transducer shell and housing, and B. B. McNeill and J. W. Cobb, with the Bioacoustics Research Laboratory, University of Illinois (BRL), for their helpful cooperation in the design and construction of apparatus for measurements; F. Haymann, a student at BRL, for his cooperation in writing the program to control the array transducer; R. Camello and S. Chen, also students at BRL, for their cooperation in writing the program to control the temperature measurement system; M. Ibbini and E. Ebbini, with BRL, for useful discussions, and K. Katakura with HCRL for his support. This work was funded in part by NIH Grant CA 44124 and an award from HCRL.",
year = "1992",
doi = "10.3109/02656739209005030",
language = "English",
volume = "8",
pages = "831--842",
journal = "International Journal of Hyperthermia",
issn = "0265-6736",
publisher = "Informa Healthcare",
number = "6",
}
