Flashcards in Radiology Intro Deck (12)
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1
Q
Factors that can be varied to affect what you get
A
- Kilovoltage (KV) - degree of beam penetration
- Milliamperage (MA) - amount of radiation in beam
- Timing - length of exposure
2
Q
Posteroanterior (PA) View
A
- Xray passes through pt from back to front
- cassette placed in patients front
- Heart wont be magnified bc is close to film
- Most common
3
Q
Anteroposterior (AP) View
A
- Xray passes through pt from front to back
- cassette placed in patients back
- Heart might be magnified bc is farther from casette
4
Q
Lateral View
A
- Projection is made passing through side to side
- Named from whichever side is closest to film on chest, abdomen, or skull
- Extremities named by right or left side of body being examined
- Left view is typical bc heart wont be enlarged bc is closer to film
- Most common
5
Q
Lordotic View
A
- Standing AP Xray of chest where pt arches back to elevate clavicles above apices of lungs
- Limited to chest xray
- good for pancoast tumor or TB
- Heart appears enlarged
6
Q
Oblique View
A
- Named by relationship of pt to film and side of body closest to film
- Usually degree of rotation is between frontal and lateral
- Helps localize or separate out lesions and project them free of overlying structures
7
Q
Cross Table Lateral View
A
- Horizontal beam w pt lying on back
- Rarely used, but good for lateral C-spine for trauma
8
Q
Lateral Decubitus View
A
- Performed w pt laying down
- Named for side that is down
- Usually PA position w horizontal beam
- Good to demonstrate air/fluid levels, free pleural fluid, pneumothorax bc fluid will pool from gravity
- Mostly used for chest/abdominal systems
9
Q
AP Recumbant
A
-Chest Xray taken w pt laying on back w vertical x-ray beams
10
Q
Coronal Plane
A
- In an anteroposterior position:
- Divides front and back, vertical through mid-axillary line
- MRIs usually done in this plane
11
Q
Sagittal Plane
A
- in a Mediolateral direction
- Side to side vertically, splits left and right halves
- mammogram, lateral films
12
Q
Axial Plane
A
- In a transverse direction
- Top to bottom, cuts into upper and lower halves
- CT
