M-mode can be used to demonstrate
A. a) Blood flow.
B. b) Tissue motion.
C. c) Gall stones.
查看答案
When an ultrasound beam passes, at an angle other than 90°, from a tissue with a lower speed of sound (C1) to one with a higher speed of sound (C2), the beam will
A. a) Be deflected toward the normal.
B. b) Be deflected away from the normal.
C. c) Remain on its original path.
Sound waves are mechanical pressure waves made up of
A. a) Highs and Lows.
B. b) Compressions and Rarefactions.
C. c) Maximums and Minimums.
A gradient descent image registration method
A. ) is generally always of the affine registration type.
B. ) will eventually find a correct answer but it might take a large amount of time.
C. ) will continue to change parameters in a given direction while the objective function is decreasing.
When performing image registration, an objective function
A. ) measures the modality of an image.
B. ) gives a measure of the similarity between two overlaid images.
C. ) describes the co-ordinate system between two images.
微信支付 
支付宝支付