physics chapter 25 study guide solutions

physics chapter 25 study guide solutions Producing an acceptable radiograph requires consideration of: -technical factor selection. -pathology. -image processing. -all of the above. - ANSWER-all of the above When many radiographic factors are acting upon one other, it is known as a(n) ___________ problem. - ANSWER-pyramid Image quality is primarily the domain of the: - ANSWER-radiographer Factors that affect the shape of the acceptance limit curve of medical images include all of the following EXCEPT: -equipment condition. -department quality standards. -department location. ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 2/6 -positioning abilities of the radiographer. - ANSWER-department location Using digital detector technologies with flat screen displays, image quality acceptance is generally determined by its: A-brightness and contrast B-quantum noise levels C-procedural issues such as positioning -both b and c - ANSWER-both b and c Which phase of the imaging process is unique to each imaging modality? - ANSWER-image acquisition Which phase of the imaging process includes control of factors such as IR exposure, contrast, spatial resolution, and distortion? - ANSWER-image analysis What process is commonly used to create a hard copy of digital images? - ANSWER-laser printing Which phase of the imaging process incorporates the concepts of spatial resolution, brightness, and contrast and dynamic range? - ANSWER-image display Visibility of detail quality factors include all of the following EXCEPT: -radiographic positioning. ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 3/6 -x-ray tube focal spot size. -image contrast. -radiographic grids. - ANSWER-radiographic positioning Geometric image quality factors include: 1. focal spot selection 2. SID 3. grid ratio 4. filtration thickness 5. OID 6. tube angulation 7. part thickness 8. receptor resolution - ANSWER-1, 2, 5, 6, 7, and 8 only All of the following are related except one. Select the choice not related to the others: -image analysis ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED FIRST PUBLISH OCTOBER 2024 Page 4/6 -image acquisition -image transmission -image processing - ANSWER-image transmission Which of these activities would be inconsistent with the "scope of practice" of the radiographer?: -suggesting methods to improve fluoroscopic image quality to a radiologist -identify a pneumonia on a chest radiograph for an ER physician -obtaining additional patient information to add to an existing patient history that was taken by a nurse -repeating a suboptimal radiograph after determining the EI# was too low - ANSWER-identify a pneumonia on a chest radiograph for an ER physician Upon analysis of a chest radiograph taken on an asymptomatic, female patient, the radiographer notices that there is an uneven visualization over both lung bases. One lung base is significantly underexposed compared to the other. In an effort to determine the possible cause(s), a logical strategy to take would be to: - ANSWER-ask the patient if she has had a previous breast surgery. After completing a chest radiograph on a female patient with large pendulous breasts, the final image demonstrates underexposure and noise and a loss of rec