Chapter 22 Radiology with correct answers

Chapter 22 Radiology with correct answers A disadvantage of conventional screen-film based radiograph is that: A. it has a limited linear exposure to radiation B. a radiograph may have underexposed and overexposed areas C. it is difficult to have good contrast and good latitude on the same radiograph D. all of the above - Correct Answers D. all of the above True or False? Spatial resolution of digital radiography systems is equal to or less than conventional screen film radiography, but contrast resolution is vastly superior. - Correct Answers True PACS is an acronym for a: A. phosphor analog conversion system B. pixel analog contrast software C. picture archiving and communication system D. photostimulable analog computer system - Correct Answers C. picture archiving and communication system Computed radiograph is a(n) ________ imaging technology. A. indirect digital B. direct digital C. indirect analog D. direct analog - Correct Answers A. indirect digital The latent image on a photostimulable phosphor plate is read by a computed radiography processor (image reader device or plate reader) using: A. fluorescent light B. a helium-neon laser C. ultraviolet light D. infrared light - Correct Answers B. a helium-neon laser True or False? Digital radiography, with all of the available image manipulation tools, can make any radiographic image diagnostic, regardless of patient motion, malpositioning, or gross overexposure or underexposure. - Correct Answers False A bit is: A. a small pixel B. a binary number, composed of two digits, 0 and 1 C. a byte