Fetal tele-echography using a robotic arm and a satellite link

Area of Science:

• Medical Imaging
• Robotics in Medicine
• Obstetrics and Gynecology

Background:

• Fetal ultrasound examinations are crucial for monitoring pregnancy.
• Access to expert ultrasound services can be limited in isolated hospital sites.
• Telemedicine offers a potential solution to bridge geographical barriers in healthcare.

Purpose of the Study:

• To develop and evaluate a tele-echography method for remote fetal ultrasound examinations.
• To assess the feasibility and accuracy of using a remotely controlled robotic arm for obstetric ultrasound.
• To compare tele-echography with conventional ultrasound methods.

Main Methods:

• Tele-echography was conducted from an expert center to an isolated maternity hospital 1700 km away.
• A robotic arm, controlled remotely, held the ultrasound probe, guided by an inexperienced assistant.
• The system reproduced the precise movements of an expert's hand on the probe.

Main Results:

• Tele-echography correctly assessed biometric parameters, placental location, and amniotic fluid volume in 93.1% of cases.
• The mean duration for tele-echography was 18 minutes, compared to 14 minutes for conventional ultrasound.
• Femur length measurement was challenging in two cases.

Conclusions:

• Tele-echography using a robotic arm is effective for obtaining key fetal assessment data.
• This technology can provide essential information on fetal growth and the intrauterine environment.
• The method shows promise for improving obstetric care in remote or underserved areas.