1. The responsibility of the commanding officer for his or her command is absoluts, except when, and to the extent to which, he or she has been relieved therefrom by competent authority, or as provided otherwise in these regulations. The authority of the commanding officer is commensurate with his or her responsibility.
A carotid duplex scan is a simple and painless test that combines two types of ultrasound to look for blockages in your carotid arteries. An ultrasound is a type of scan that uses sound waves to produce a picture of the inside of your body.
a technique in which the transducer emits and receives the ultrasound beam continuously, enabling the measurement of high velocity blood flow, such as occurs through heart valve stenoses. duplex Doppler ultrasound. a form of image display in which both spectral and color flow images are seen simultaneously.