CRDR Exam 1 Questions with Complete Solutions 2024/2025
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Course
CRDR
Institution
CRDR
CRDR Exam 1 Questions with Complete Solutions 2024/2025
Barium-fluoro halide Crystals - ANSWERSPhoto stimulable phosphor is made of what?
10 raise to 4 - ANSWERSThe exposure latitude of CR is ______ wider than SF systems
1. The IP is exposed to x-rays
2. Scan IP with laser beam, light...
CRDR Exam 1 Questions with Complete
Solutions 2024/2025
Barium-fluoro halide Crystals - ANSWERSPhoto stimulable phosphor is made of what?
10 raise to 4 - ANSWERSThe exposure latitude of CR is ______ wider than SF systems
1. The IP is exposed to x-rays
2. Scan IP with laser beam, light is emitted
3.Light collection, collected by a light guide and send it to the PMT and converted to. digital image data
4. Digital processor, it processes the digital data to produce CR image that can be viewed on a monitor
5. IP is exposed to a bright light to erase on a monitor
6. the IP can now be used again - ANSWERSWhat are the steps in the production of CR imaging system
cesium iodide - ANSWERSwhat kind of phosphor we are using in indirect flat panel-digital detector
indirect flat-panel digital radiography - ANSWERSX-ray are first converted into light using a phosphor
such as cesium iodide
Direct flat-panel digital radiography - ANSWERSThis system uses detector that convert x-ray directly into
electronic signals.
2nd type of indirect flat-panel digital radiography - ANSWERSUses an array of charge -coupled devices
(CCD) instead of an array of electronic elements.
CCD (charge-coupled devices - ANSWERScoupled to the scintillator phosphor ,cesium iodide.
, phosphor - ANSWERSX-ray fall upon the _________ to produce light, which then falls upon the CCD
array, which in turn covert the light into electrical signals that are the digitized and processed by a
computer to produce image.
several advantages high DQE and spatial resolution compare to CR system
-Wider exposure latitude than film system.
-produce acceptable image even the exposure factors are high or low - ANSWERSwhat are the
advantages of flat-panel digital radiography
digital mammography - ANSWERSIt is the radiography of the breast
- ANSWERSUses computer aided diagnosis (CAD)
computer aided diagnoses - ANSWERSUses ___________ software to help radiologists enhance their
detection of micro-calcifications and malignant lesion and also provide the so called "second reader"
approach.
micro-calcification and malignant lesion
- ANSWERSUses computer aided diagnosis (CAD) software to help radiologists enhance their detection
of ________ and____________ and also provide the so called "second reader" approach.
second reader - ANSWERSUses computer aided diagnosis (CAD) software to help radiologists enhance
their detection of micro-calcifications and malignant lesion and also provide the so called " _________"
approach.
-Consist of x-ray tube
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