Contrast film - Study guides, Class notes & Summaries

The way that landscape is depicted in art, but also in visual culture is telling about the ways in which people see and experience space, place and nature, but also culture, belonging and ownership. In South Africa these have always been contested concepts, that are constantly being re-negotiated through depiction of the South African landscape. By watching the two videos; South African Tourism| #LIVEAGAIN FILM (2011) and South Africa Travelogue: Kimberly Diamond Mines & Gold Mines (1940), th...

Window vs. Reconstruction on CT? correct answersReconstructions - processing of the raw CT data allows for better resolution of the structures [higher resolution and higher contrast] Reconstruction can be done in 3D (ortho) or in a linear way too (vascular) What is the total range of hounsfield units availabe? correct answers-1000 (air) to +1000 (metal) [so range is 2000] What does a typical computer display show for greyscale range? What can the human eye actually distinguish? corr...

Aquifer - Radiology Actual Exam Questions With Answers Window vs. Reconstruction on CT? - ANSWER- Reconstructions - processing of the raw CT data allows for better resolution of the structures [higher resolution and higher contrast] Reconstruction can be done in 3D (ortho) or in a linear way too (vascular) What is the total range of hounsfield units availabe? - ANSWER- -1000 (air) to +1000 (metal) [so range is 2000] What does a typical computer display show for greyscale range? What...

TEST BANK 3RD EDITION DIGITIAL RADIOGRAGHY & PACS CHAPTER 03 QUESTIONS & ANSWERS 2023 Chapter 03: Digital Radiographic Image Processing and Manipulation Carter: Digital Radiography and PACS, 3rd Edition MULTIPLE CHOICE 1. Failure of the reader to find the collimation edges of an a. will result in image cutoff. b. may cause the image to be too bright or too dark. c. will eliminate all scatter. d. will have no effect on the resultant image. ANS: B OBJ: Describe the formati...

HESI EXIT EXAM STUDY VERIFIED QUESTIONS AND ANSWERS 2023 LATEST UPDATE GRADED A A radiographer prepares to perform an AP projection of the distal femur on a patient with a suspected femoral fracture. Which represents the best approach for positioning both the patient and the x-ray tube? A. Rotate the leg 15 degrees medially; place the cathode end of the tube toward the foot. B. Rotate the leg 15 degrees medially; place the anode end of the tube toward the foot. C. Do not rotate the l...

Dental Radiography (2023/ 2024 Update) Guide with verified Answers| 100% Correct Q: High contrast Dental image that has very dark and very light areas Q: Low contrast Answer: A dental image that does not have very dark and very light areas but instead has many gray areas Q: Short scale contrast (high contrast) Answer: Radiograph with only 2 densities, black and white Occurs with machines functioning at low kVP Q: Long scale contrast (low contrast) Answ...

Test Bank for Bontragers Textbook of Radiographic Positioning and Related Anatomy 9th Edition Lampignano Test Bank for Bontragers Textbook of Radiographic Positioning and Related Anatomy 9th Edition Lampignano Test Bank for Bontragers Textbook of Radiographic Positioning and Related Anatomy 9th Edition Lampignano Test Bank for Bontragers Textbook of Radiographic Positioning and Related Anatomy 9th Edition Lampignano Test Bank for Bontragers Textbook of Radiographic Positioning and Related Anatom...

MED-SURG RN Form B Exam Questions And Answers All Correct Cancer treatment options: Safety precautions for a sealed radiation implant - ANS ◯ Nursing Actions ■ Place the client in a private room away from other clients when possible. ■ Place an appropriate sign on the door warning of the radiation source. ■ Wear a dosimeter film badge that records personal amounts of radiation exposure. ■ Limit visitors to 30-min visits, and have visitors maintain a distance of 6 ft from the...

CT Registry Review Questions with 100% Verified Correct Answers 1. Which of the following statements is false? a. The elimination of superimposed structures is a distinct advantage of CT over plain film imaging. b. CT images possess superior quality. c. Contrast resolution is approximately 10x better with CT compared to plain film imaging. d. Spatial resolution is approximately 10x better with CT compared to plain film imaging. - Correct Answer d 2. Which type of beam coverage w...

LRA 221 Final Exam Questions and Verified Answers - (2024/ 2025 Update) 100% Correct Review 182 Q: Aliasing occurs when the sampling frequency is not greater than twice the frequency of the input signal. a. True b. False Answer: b. False Q: In digital projection radiography, what process is used to normalize an image that has been taken with too great of an exposure? a. High-pass filtering b. Low-pass filtering c. Automatic rescaling d. Aliasing Answer: c. Automatic res...