“…Nowadays, non-invasive examinations such as Doppler ultrasound, magnetic resonance imaging (MRI), or enhanced MDCT are the main methods for diagnosing POVT, with a sensitivity of 52%, 92%, and 100%, respectively[ 5 , 6 , 10 - 13 ]. Ultrasound is considered to be the preferred method of obstetric examination due to its flexible and real-time characteristics; however, its accuracy often depends on the operator's experience and operating skills[ 13 , 14 ]. With the development of ultrasound technology and the improvement of the diagnostic level of sonographers, reports of ultrasound diagnosis of POVT have appeared one after another.…”