Radiology V EXAM Flashcards
I did dum (20 cards)
What is an imaging technique that doesn’t require the use of film?
Digital radiography
For which atoms are MRI radio frequencies tuned to in order to create images?
Hydrogen
What is the erroneous appearance of debris in the urinary bladder called?
Slice-thickness artifact
What is administered during an intravenous pyelogram (IVP) to evaluate the urinary system?
Intravenous administration of an ionic organic iodide
What is the annual MPD (maximum permissible dose) for occupational exposure?
0.05 Sv/year
What is the unit of absorbed dose of ionizing radiation?
Rad
Which part of an MRI scanner obtains better images of smaller body parts?
Surface coils
Which imaging screens have increased resolution?
Slow screens
On ultrasound, what is a dark structure called?
Anechoic
Which method uses x-rays to view anatomy in cross sections?
Computed radiography
Which type of imaging screens require less radiation?
Fast screens
Which ultrasound mode is least useful for abdominal or cardiac exams?
A mode
Which digital modality requires a high-resolution monitor due to inherently high-resolution images?
Digital radiography
What does dynamic range refer to in imaging?
Number of shades of gray
What term describes a structure with the same brightness as adjacent structures on ultrasound?
Isoechoic
What are “detail screens” also called?
Slow screens
What artifact commonly causes duplication of the gallbladder on the far side of the diaphragm?
Mirror-image artifact
What are regular imaging screens called?
Average screens
What is primarily used for transrectal reproductive exams in cattle and horses?
Linear array transducer
Which tissue cannot be imaged using ultrasound?
Brain
