When examining the thyroid gland, besides blood tests, thyroid ultrasound is an indispensable item. Ultrasound can be divided into black-and-white ultrasound and color ultrasound, just like TV has black-and-white and color difference? No. On the monitor, Color ultrasound also sees black and white images. The reason why it is named [color] is that it can display the blood flow of the inspected part, and the flow direction is different, and the blood is [given] different colors, so the whole color ultrasound is called [color Doppler blood flow imaging], abbreviated as [color Doppler ultrasound]. In addition, it is clearer and has better image quality than black and white ultrasound. Usually used for thyroid examination is mostly color Doppler ultrasound. Why? The Read More …