SPI REVIEW QUESTIONS: Principals questions with complete solutions

Which of the following console controls will have NO effect on the dynamic range? A. rejection B. suppression C. compression D. output power CORRECT ANSWERS: D. output power What can be done to improve the visualization of the anterior aortic wall? A. Angle the probe until the ultrasound beam is perpendicular to the aortic wall. B. Angle the probe to create an oblique angle between the probe face and the aortic wall. C. Increase the overall gain. D. Decrease the threshold setting. CORRECT ANSWERS: A. Angle the probe until the ultrasound beam is perpendicular to the aortic wall. Activation of B-color is used to improve: A. contrast resolution B. elevational resolution C. spatial resolution D. temporal resolution CORRECT ANSWERS: A. contrast resolution . A disadvantage of increasing edge enhancement is: A. Amplifies echoes related to noise and speckle B. Increases the signal to noise ratio C. Reduces beam penetration D. Increases beam intensity CORRECT ANSWERS: A. Amplifies echoes related to noise and speckle In read magnification, image size and ___________ increases. In write magnification, image size and _____________ increases. A. number of pixels, pixel size B. frame rate, time of frame production C. pixel size, number of pixels D. reflection amplitude, transmitted amplitude CORRECT ANSWERS: C. pixel size, number of pixels What portion of the TGC curve is the deepest region attenuation compensation can occur? A. toe