Safety of Diagnostic Ultrasound No. 6. The Safety of Pulsed Doppler UltrasoundKazuo Maeda*
Department of Obstetrics and Gynecology (Emeritus), Tottori University Medical School, Yonago, Japan
- *Corresponding Author:
- Kazuo Maeda
Department of Obstetrics and Gynecology (Emeritus)
Tottori University Medical School, 3-155
Nadamachi, Yonago, 683-0835 Japan
E-mail: [email protected]
Received date: March 19, 2014; Accepted date: May 15, 2014; Published date: May 19, 2014
Citation: Maeda K (2014) Safety of Diagnostic Ultrasound No. 6. The Safety of Pulsed Doppler Ultrasound. J Health Med Informat 5:155. doi: 10.4172/2157-7420.1000155
Copyright: © 2014 Maeda K. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
There are two pulsed Doppler ultrasound including continuous wave (CW) Doppler and pulsed Doppler, where the safety is discussed in the pulsed Doppler, because of its higher ultrasound intensity, due to longer pulse and higher pulse repetition frequency than simple B-mode ultrasound, and obstetrical setting of ultrasound devices determines the thermal and mechanical indices below one in pulsed Doppler. Ultrasound user is responsible to ultrasound safety, where the user lowers the ultrasound thermal and mechanical indices below one, when indices are higher than one. The use of pulsed Doppler in the first trimester is regulated by ISUOG committee.