Ultrasound hyperthermia applicators: Intensity distributions and quality assurance
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in International Journal of Hyperthermia
- Vol. 6 (1) , 169-174
- https://doi.org/10.3109/02656739009140813
Abstract
Intensity plots at several depths in water were obtained with three ultrasound hyperthermia applicators (Clinitherm, Mark VII), each with a single plane circular ceramic transducer element. One of the applicators exhibited an anomalous localized intensity maximum 3 cm away from the central beam axis. This observation, and the fact that transducer efficiency and field patterns may change with time and use, suggest quality assurance enhancement through periodic checks of output distributions of ultrasonic applicators for clinical use.This publication has 7 references indexed in Scilit:
- Scanned focused ultrasound hyperthermia: Preliminary resultsInternational Journal of Radiation Oncology*Biology*Physics, 1987
- Single-Transducer Electrode Design for Beam Shaping in Biomedical UltrasoundIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1986
- Performance Evaluation of a Digital Readout Hyperthermia Range Ultrasonic WattmeterIEEE Transactions on Sonics and Ultrasonics, 1984
- Experience with a Multitransducer Ultrasound System for Localized Hyperthermia of Deep TissuesIEEE Transactions on Biomedical Engineering, 1984
- The development of improved ultrasound heaters suitable for superficial tissue heatingMedical Physics, 1982
- Ultrasound-induced hyperthermia for the treatment of human superficial tumorsInternational Journal of Radiation Oncology*Biology*Physics, 1982
- Combined radiation and hyperthermia in superficial human tumorsCancer, 1980