Related Experiment Video
Updated: Aug 4, 2026
State of the Art Cranial Ultrasound Imaging in Neonates
Published on: February 2, 2015
A test of I2t as a dose parameter for fetal weight reduction from exposure to ultrasound
S Z Child1, D Hoffman, D Strassner
1Department of Electrical Engineering, University of Rochester, New York 14627.
It has been suggested that fetal weight reduction by ultrasound exposure is linearly related to the dose parameter I2t, where I is the intensity and t the exposure time. A direct test of the concept was conducted using CF-1 mice. No effect on fetal weight was found at values of the dose parameter large enough to produce measurable heating in the fetal and maternal tissues.
It has been suggested that fetal weight reduction by ultrasound exposure is linearly related to the dose parameter I2t, where I is the intensity and t the exposure time. A direct test of the concept was conducted using CF-1 mice. No effect on fetal weight was found at values of the dose parameter large enough to produce measurable heating in the fetal and maternal tissues.
