Image intensifier - Study guides, Class notes & Summaries

what are the factors that directly influence the exposure rate at the panel or tabletop and the patient and the operator's radiation dose? Answer milliamperage, kilovolatage, collimation, filtration, exposure time, target to panel (tabletop) distance (TPD), patient to image intensifier distance for over the table and under the table image intensifier systems, sensitivity of the image receptor what will reduce patient exposure? Answer 1.Collimation to the area of clinical interest only (requi...

Iron is an example of a _______________ material. CORRECT ANSWER Ferromagnetic For trauma radiography, a radiographer could best acquire images of a lateral distal femur by: CORRECT ANSWER acquiring a cross-table lateral femur with a lateromedial projection Total brightness gain for the image intensifier is calculated by: CORRECT ANSWER flux gain multiplied by minification gain. A person with acute radiation syndrome does not demonstrate signs of illness during the ________ period. COR...

voltage is stepped up or stepped down by only a small amount and sent to the _______ side of the high voltage step up transformer primary where is the timer in the X-ray circuit? between autotransformer and high voltage transformer mAs timers are used with __________ generators falling load AEC fixed kVp, controlled mAs positioning must be perfect what is the shortest time with AEC? 1 ms falling load generator RT sets mAs and kVp when max heat load of t...

Digital Fluoroscopy questions well answered rated A+ 2023Pixel size= - correct answer Image intensifier size/matrix Spatial resolution is determined/limited by - correct answer pixel size The larger the matrix, the more pixels pixel size would _______________________ - correct answer decrease (they are smaller) A larger matrix with smaller pixels increases _____________________ - correct answer spatial resolution Digital fluoroscopy (DF) is a digital x-ray imaging system that produc...

An injection set that includes a needle with plastic wings attached is called: A. large bore. B. butterfly. C. contrast agent injecting set. D. sterile tray. b X-rays travel as bundles of energy called: A. energy waves. B. phasers. C. electromagnetic bursts. D. photons. d The increase in brightness caused by acceleration of the electrons in the image intensifier is called: A. flux gain. B. minification gain. C. total brightness gain. D. image gain. a A p...

An image that demonstrates low contrast can be caused from: 1. High mAs 2. Low kVp 3. Insufficient beam restriction correct answer: 3 only Which of the following interactions with matter reduce contrast in an x-ray image? correct answer: Compton scattering From anatomical position, pronating the hand will result in the palm facing ____. correct answer: Posteriorly The maximum variation between consecutive exposures when using the same technical factor is: correct answer: withi...

What type of movement does the Horizontal Cross Arm do on the C-Arm machine? Extends c-arm a maximum of 8 inches out What type of movement does Wig Wag do on the C-Arm machine? moves c-arm from side to side What type of movement does the Vertical Column Lift do on the C-Arm machine? Raises and lowers the C-arm What type of movement does the Canting/Oblique Rotation do on the C-Arm machine? rotates the intensifier up to 115 degrees What type of movement does the La...

An image that demonstrates low contrast can be caused from: 1. High mAs 2. Low kVp 3. Insufficient beam restriction correct answer: 3 only Which of the following interactions with matter reduce contrast in an x-ray image? correct answer: compton scattering What type of fracture is illustrated below? (femur bone sticking out of skin) correct answer: compound fx From anatomical position, pronating the hand will result in the palm facing ____ correct answer: posteriorly With all oth...

RCIS Practice Test Final Complete Exam Questions with Verified Answers 2024/2025 What is the formula for calculating cardiac output? - CORRECT ANSWER-CO= HR x SV What is stroke volume related to? - CORRECT ANSWER-preload Preload is most impacted by..... - CORRECT ANSWER-Increased filling volumes A patient with chronic untreated hypertension would demonstrate.... - CORRECT ANSWER-Increased afterload Vascular resistance/pressure is most influenced by.... - CORRECT ANSWER-Radius of th...

Pixel size= Answer Image intensifier size/matrix Spatial resolution is determined/limited by Answer pixel size The larger the matrix, the more pixels pixel size would _______________________ Answer decrease (they are smaller) A larger matrix with smaller pixels increases _____________________ Answer spatial resolution Digital fluoroscopy (DF) is a digital x-ray imaging system that produces ________________ images obtained with an _________ x-ray beam. Answer dynamic area Th...