Assessing Obstetric Anal Sphincter Injuries: A Comparison of Exoanal and Endoanal Ultrasound.
Baihua ZhaoYinbo LiYingchun TangYuyang GuoYalin YangLieming WenHans Peter DietzPublished in: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine (2023)
"Significant defects" diagnosed by EAUS or TPUS and OASI Grade 3b+ predict AI symptoms. The diagnostic performance of endoanal and exoanal ultrasound (EAUS and TPUS) appear to be very similar.