Transabdominal Ultrasound: This is the most common type, where the transducer is moved across the mother's abdomen. Transvaginal Ultrasound: Used in early pregnancy or when a more detailed image ...

Gracia and Barnhart [6] compared different methods of diagnosing ectopic pregnancy using combinations of transvaginal ultrasound plus biochemistry (serum progesterone and serum beta-hCG ...