Minification gain - Study guides, Class notes & Summaries

Physics Fluoroscopy Exam Questions and Answers- Updated 2024 The edge distortion problem in image intensification tubes is called - Answer-Vignetting The ability of the image intensifier to increase image illumination is: - Answer-Brightness Gain During fluoroscopic image intensification, the primary beam exits the patient and strikes what part of the II? - Answer-Input Screen Formula for Flux Gain - Answer-Flux Gain= Number of output photons / Number of input photons The photocathode i...

Fluoroscopy Review Questions and Answers, Graded A+ 1. Which term is defined as the ratio of the number of light photons at the output phosphor to the number of x-rays at the input phosphor? a) Brightness gain b) Flux gain c) Minification gain d) Magnification gain b) Flux gain 2.All affect the brightness of the fluoroscopic image except: a) SID b) Patient size c) kVp d) mA a) SID 3. The kV range typically used for fluoroscopy during myelograms is: a) 40-50 b) 50-60 c...

Fluoroscopy Questions and Answers, Graded A+ -What does Dynamic means: -Always active or changing. -Having or showing a lot of energy. -Of or relating to energy, motion, or physical force. Fluoroscopy allows for? -Imaging of the movement of internal structures. Can visualize function and motion in real time. -Commonly used for GI, vascular, and urinary studies, ect. -This often requires the use of contrast media. When and by whom was fluoroscopy invented? -Thomas Edison. -...

Chapter 36: Fluoroscopy Questions and Answers, Graded A+ Fluoroscopy a dynamic radiographic examination; involves active diagnosis during an examination Image Intensification Tube video camera and monitor used to view fluoroscopic images Thomas Edison invented a more notable fluoroscope in 1896 His fluoroscope produced a very faint image that one viewed while standing in the path of the x-ray beam as it exited the patient and screen. It had two drawbacks: The dose to the ...

Fluoroscopy Questions and Answers, Graded A+ What is the milliamperage used during fluoroscopy? 5 mA (During fluoroscopy, the x-ray tube is operated at less than 5 mA.) The image intensifier improved fluoroscopy by increasing image _____. brightness The _____ in the retina are stimulated by _____ light; the _____ are stimulated by _____ light. rods, low; cones, bright The output phosphor of the image intensifier is composed of _____. cesium iodide The input phos...

California Fluoroscopy Supervisor and Operator Final Exam 2024 Question and Answers The normal view distance for binocular vision is a. 1-2 in b. 4-8 in c. 12-15 in d. 16-20 in c. 12-15 in In general, during conventional fluoroscopic examinations the preferred technique is: a. High kVp, low mA b. High kVp, low mAs c. Low kVp, high mAs d. Low kVp, high mA a. High kVp, low mA Which of the following properties are associated with cones rather than rods: a. Contrast perception b. Co...

Fundamentals of Fluoroscopic Imaging Questions and Answers, Graded A+ Which of the following describes how fluoroscopic images are acquired that study human anatomy and function? Real-time acquisition Which three of the following are necessary to generate fluoroscopy X-radiation IR Conversion of x-ray to visible light Which of the following needs to be in effect to intercept the fluoroscopic primary beam Primary barrier, such as the IR is required When performing fluor...

RAD 102 - 1 – Fluoroscopy Questions and Answers, Graded A+ Fluoroscope It consists of a specialized x-ray tube with an image receptor called the fluoroscopic screen. It was invented by Thomas Edison in 1896. Fluoroscopy It is used mostly for studies that require observation of dynamic body functions such as swallowing by peristallic motion. Fluoroscopic Input Screen It is similar to intensifying screens. It is composed of sodium-activated cesium iodide phosphors or crystals. ...

ch 10 fluro Questions and Answers 2023, Graded A+ Traditional fluoroscopic units are designed with the x-ray tube____the table and the image-intensifier tube or digital detector located_____ underneath, overtop the patient Modern remote-control units integrate or are configured with the table and tube in one system, allowing for both fluoroscopic and radiographic procedures. These remote-controlled systems have the x-ray tube located____and the imaging detector located above the patien...

Fluoroscopy exam Questions and Answers, Graded A+ Total filtration permanently required in the useful fluoroscopic beam should not be less than 2.5mm Aluminum If X-ray source is below the table, useful beam exposure must be measured at what distance above the table top 30 cm Table top exposure rates for units without auto exposure control must be measured every 3 years Dark adaptation for the eye takes how long 30 minutes Target-to-tabletop distance must be great...