Anatomy
What section of the spine supports the head?
The Cervical Spine
What type of imaging uses continuous x-rays to view motion?
Fluoroscopy
Which modality uses magnetic fileds instead of radiation?
MRI (Magnetic Resonance Imaging)
Increasing mAs affects what?
Image brightness/ density (quantity of x-rays)
Where is the CR for a PA chest?
T7
What is the structure articulates with the glenoid fossa?
The humeral head
This contrast is commonly used for GI studies...
Barium
Which modality is best for evaluating bone fractures quickly?
CT (Computed Tomography)
Increasing kVp affects what?
Contrast (long scale/more penetrability)
Where is the CR for an AP shoulder?
2 inches inferior to the coracoid process
This part of C2 acts as a pivot point for rotation of the head...
The dens (odontoid process)
This type of contrast is used if perforation is suspected..
Water-soluble iodinated contrast
This system stores and retrieves medical images digitally.
PACS (Picture Archiving and Communication System)
What happens to exposure when distance is doubled?
It decreases by 75% (inverse square law)
What is the CR for a lateral thoracic spine?
T7, (Landmark: Mid-axillary line, level of inferior angle of scapula)
Which landmark is used to locate L4-L5 for lumbar positioning?
The iliac crest
What is the main purpose of spot imaging during fluoro?
Captures key moments of anatomy/function for documentation.
This system manages patient data and scheduling in radiology.
RIS (Radiology information System)
The 15% Rule is used to adjust what factor (by doing what)?
kVp to double / halve exposure
What is the angle used for an AP axial (lordotic) chest?
15-20o cephalic
This structure is best demonstrated on a lateral elbow (fits into a fossa..)
The olecranon process
This radiation safety principle reduces exposure by limiting beam-on time during fluoroscopy....
ALARA (time reduction/pulsed fluoro)
This imaging modality is best for evaluating metabolic activity, often combine with CT...
PET scan (Positron Emission Tomography)
Increasing kVp will have what effect on Compton scatter?
It will increase scatter production
For a Waters view, where should the CR exit?
the Acanthion