Results 351 to 360 of about 4,798,531 (406)
Some of the next articles are maybe not open access.
The clinical applications of ultrasonics in radiation therapy
Physics in Medicine & Biology, 1972The recent development of B-mode ultrasonic scanning has added a new dimension in obtaining anatomical information for radiation therapy treatment planning and evaluation. True representations of patient cross-sections can be determined which may define tumour and important organ positions.
T J Brickner, F Gentry, J E Kauth
openaire +2 more sources
Design of an ultrasonic therapy system for breast cancer treatment.
International Journal of Hyperthermia, 1996This paper describes the design of a novel ultrasonic therapy system dedicated to the breast cancer treatment and the theoretical investigation of the heating characteristics of the system. The applicator is a cylinder comprised of a stack of rings. Each
X. Lu +4 more
semanticscholar +1 more source
Ultrasonic bone-therapy apparatus and method
The Journal of the Acoustical Society of America, 1998A method of ultrasonic bone-therapy subjects a bone to an ultrasonic excitation pulse signal of finite duration, supplied to a transducer next to the bone, and involving a sinusoidal signal in the ultrasonic region to approximately 2 MHz peculiarly modulated by a sinusoidal signal with frequency between about 0 Hz and about 25 kHz; the excitation ...
Jonathan J. Kaufman +1 more
openaire +2 more sources
Use of ultrasonics in single-visit endodontic therapy
Journal of Endodontics, 1987Two cases are presented in which a single-visitendodontic procedure was performed using ultrasonics and sodium hypochlorite as an irrigant. We recommend that clinical studies be performed to demonstrate the significance of ultrasonics in single-visit endodontic therapy.
David E. Stamos +3 more
openaire +3 more sources
Performance improvement of ultrasonic therapy equipment by modifying the classical transducer design
, 1999In ultrasonic therapy equipment, the construction of the transducer is based on a piezoelectric ceramic glued to a metallic protection layer. The protection layer thickness is commonly chosen to be a multiple of the acoustic half-wavelength.
A. Turó +4 more
semanticscholar +1 more source
The Question of Damage in Ultrasonic Therapy
The Journal of the Acoustical Society of America, 1954Criteria are suggested for ensuring the proper use of ultrasound in physical therapy and in particular for avoiding damage to patients.
openaire +2 more sources
Computer simulations of ultrasonic heating for ocular therapy
Acta Ophthalmologica, 1992Abstract Computer simulations are being performed to model the temperature patterns produced during ultrasonically induced hyperthermia of ocular tumours. The software package for these simulations incorporates operator interaction and uses tissue geometry obtained from B‐mode data.
A. Kalisz +3 more
openaire +3 more sources
Ultrasonic therapy applicator that measures dosage
The Journal of the Acoustical Society of America, 1984An ultrasonic therapy applicator wherein therapeutic heating is provided by creating a diffuse ultrasonic field in a liquid, such as water, in a tank in which living tissue may be immersed. The diffuse acoustic energy is produced by frequency-modulating the driving ultrasonic frequency in a band employing "white noise" modulation.
openaire +2 more sources