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Experimental evaluation of some narrow-band ultrasonic transducers as therapy applicators

AuthorsGonzález, G.; Azbaid, Abdelhalim; Leija, Lorenzo; Ramos, Antonio; Rami, X.; San Emeterio, José Luis CSIC; Moreno, E. CSIC
KeywordsUltrasonic transducers
Narrow-band applicators
Medical therapy treatments
Ultrasonic energy concentration
Field patterns
Medical ecography
Issue DateSep-2002
PublisherSociedad Española de Acústica
CitationForum Acusticum Sevilla 2002. Ultrasonics ; ULT-04-012-IP
AbstractConventional narrow-band applicators used for diathermy and hyperthermia purposes in therapy treatments present certain limitations to depose energy accurately and uniformly in the desired target. In addition they could radiate some energy away the treatment field, by insonifying neighbour tissues. With conventional ultrasonic transducers, the classical CW radiation presents near and far field patterns having notable irregularities and secondary lobes more accentuated in the real radiators, which could create undesired hot points or could attain healthy tissues. In this paper, the possible incidences of the above mentioned aspects are experimentally evaluated by arranging commercial and own-developed diathermy applicators radiating into a water tank as an artificial propagation medium.
Description6 pages, 5 figures.-- PACS nrs.: 43.35, 43.38.-- Communication presented at: Forum Acusticum Sevilla 2002 (Sevilla, Spain, 16-20 Sep 2002), comprising: 3rd European Congress on Acoustics; XXXIII Spanish Congress on Acoustics (TecniAcústica 2002); European and Japanese Symposium on Acoustics; 3rd Iberian Congress on Acoustics.-- Special issue of the journal Revista de Acústica, Vol. XXXIII, year 2002.
Appears in Collections:(IA) Comunicaciones congresos

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