Measured acoustic intensities for clinical diagnostic ultrasound transducers and correlation with thermal index

Autor:	K, Retz, S, Kotopoulis, T, Kiserud, K, Matre, G E, Eide, R, Sande
Rok vydání:	2016
Předmět:	Equipment Safety Pregnancy Calibration Transducers Temperature Humans Female Acoustics Equipment Design Ultrasonography Prenatal
Zdroj:	Ultrasound in obstetricsgynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 50(2)
ISSN:	1469-0705
Popis:	To investigate if the thermal index for bone (TIB) displayed on screen is an adequate predictor for the derated spatial-peak temporal-average (IWe calibrated five clinical diagnostic ultrasound scanners and 10 transducers, using two-dimensional grayscale, color Doppler and pulsed-wave Doppler, both close to and far from the transducer, with a TIB between 0.1 and 4.0, recording 103 unique measurements. Acoustic measurements were performed in a bespoke three-axis computer-controlled scanning tank, using a 200-μm-diameter calibrated needle hydrophone.There was significant but poor correlation between the acoustic intensities and the on-screen TIB. At a TIB of 0.1, the ITIB is a poor predictor for I
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=pmid________::ec9d90548c7f375b20912692ec481004 https://pubmed.ncbi.nlm.nih.gov/27608142 Zobrazit plný text záznamu Plný text