"Ultrasound is like a third eye," explains Dr. Hsieh Feng-chou of National Taiwan University Hospital. Many diseases are hard to treat because they can't be "seen." Ultrasound can determine which week the pregnancy is in, the position and shape of the fetus, as well as whether the fetus has external defects or internal organ abnormalities. Treatable defects can then be cured with the appropriate drugs.
「超音波就像人類的第三隻眼睛」，謝豐舟解釋，許多疾病所以難治，是因為「看不到」；超音波卻能觀看人體，確定孕婦懷孕周數、胎兒大小、數目、位置；也能看出孕婦肚中的胎兒是否有外觀畸形，或內臟器官發育異常。