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Updated: Jun 23, 2026
Murine Fetal Echocardiography
Published on: February 15, 2013
High-Quality Transmission of Cardiotocogram and Fetal Information Using a 5G System: Pilot Experiment
Katsuhiko Naruse1, Tomoya Yamashita2, Yukari Onishi2
1Department of Obstetrics and Gynecology, Nara Medical University, Kashihara, Nara, Japan.
Background:
A cardiotocogram (CTG) is a device used to perceive the status of a fetus in utero in real time. There are a few reports of its use at home or during emergency transport.
Objective:
The aim of this study was to test whether CTG and other perinatal information can be transmitted accurately using an experimental station with a 5G transmission system.
Methods:
In the research institute, real-time fetal heart rate waveform data from the CTG device, high-definition video ultrasound images of the fetus, and high-definition video taken with a video camera on a single line were transmitted by 5G radio waves from the transmitting station to the receiving station.
Results:
All data were proven to be transmitted with a minimum delay of less than 1 second. The CTG waveform image quality was not inferior, and there was no interruption in transmission. Images of the transmitted ultrasound examination and video movie were fine and smooth.
Conclusions:
CTG and other information about the fetuses and pregnant women were successfully transmitted by a 5G system. This finding will lead to prompt and accurate medical treatment and improve the prognosis of newborns.
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