noun
ultrasound scan; ultrasonography
Medical imaging technique using high-frequency sound waves. Often used in pregnancy, cardiology, and abdominal examinations. Synonymous with 超音波検査.
See also: 超音波検査
妊娠中にエコー検査を受けた。
I had an ultrasound scan during pregnancy.
心臓のエコー検査で異常は見つからなかった。
No abnormalities were found in the cardiac ultrasound.