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pmi positioning
posit. lower extremity basics
| Question | Answer |
|---|---|
| a foot series is comprised of what? | AP, AP axial, AP oblique, lateral |
| CR entry AP axial foot | 10 degrees posterior to base of 3rd metatarsal |
| CR entry for foot projections | perp. to base of third metatarsal |
| typical ankle projections | AP, AP oblique |
| CR entry for ankle | perp. to ankle joint |
| pt position AP oblique ankle for tib-fib | pt supine, leg extended plantar surface perp. to IR, 45 degree medial rotation. |
| pt position AP oblique ankle for mortise | pt supine, leg extended plantar surface perp. to IR, 15-20 degree medial rotation of leg and foot. |
| IR size for ankle | 8 X 10 |
| positions for lower leg projections | AP, lateral |
| what is demonstrated on a lower leg radiograph? | ankle and knee joints |
| IR size for lower leg | 14 X 17 |