Teleultrasound for pre-natal diagnosis: A validation study

Area of Science:

• Medical imaging
• Prenatal diagnostics
• Telemedicine

Background:

• Limited large-scale validation trials exist comparing teleultrasound with on-site ultrasound.
• Teleultrasound offers a potential solution for remote prenatal care.

Purpose of the Study:

• To compare the sensitivity and accuracy of teleultrasound versus on-site ultrasound.
• To demonstrate that teleultrasound is not inferior to on-site ultrasound for prenatal diagnosis of fetal anomalies.

Main Methods:

• Analysis of targeted ultrasounds from November 2010 to December 2012.
• Exclusion of studies before 17 weeks' gestation, multiple gestations, and non-anatomical surveys.
• Calculation of descriptive statistics and a non-inferiority test for sensitivity and accuracy.

Main Results:

• Teleultrasound (2368 studies) showed lower sensitivity (57.46%) than on-site ultrasound (3145 studies, 76.57%).
• Teleultrasound demonstrated higher accuracy (95.9%) compared to on-site ultrasound (90.97%).
• Teleultrasound exhibited similar specificity, positive, and negative predictive values to on-site ultrasound.

Conclusions:

• Teleultrasound is inferior in detecting fetal anomalies but superior in accuracy and predictive values.
• Teleultrasound plays a crucial role in prenatal diagnosis for patients with travel limitations.
• A negative teleultrasound result is more reliable in identifying non-anomalous fetuses.