Toes Flashcards
what is the CP for AP/DP toes
10-15* cranial to MTP joint
what is the collimation for a toe
toe and 1/2 of MT minimum
if only one toe injured, can image it and the toe next to it
what is the CP for the Oblique toe view
perpendicular to the MTP joint
what is the patient positioning for oblique toes
in terms of the angling of the foot for the 1st 3 digits and the 4/5th digits
foot angled 30-45* medially for 1st 3 digits and laterally for 4th and 5th digits
what is the CP for lateral toes for the 1st toe and the 2-5th toes
perpendicular to the 1st toe interphalangeal joints
2-5th toes PIP joint
what will the 1st 3 toes and the 4/5th toes be for lateral toes in terms of lateromedial or mediolateral
1st 3 toes = lateromedial
4/5th toes = mediolateral
what is the positioning image critique for AP toes
in terms of phalanges and soft tissue
Shaft of phalanges and MC equally concave on both sides. If rotated, side with most concavity is away from IR
IP and MTP joints appear ?
No overlap of soft tissues- toes separated out
what is the positioning image critique for oblique toes
medial or lateral depends on which toe is being imaged
Metatarsal heads side by side or minimal overlap
what is the positioning image critique for lateral toes
digit free of superimposition
IP and MTP joints open
what is the area of interest for the AP toes
at least one other toe on the other side of the affected toe
digits and distal 1/2 metatarsal
what is the area of interest for the oblique toes
soft tissue overlapping
digits and distal 1/2 metatarsal
what is the area of interest for the lateral toes
whole toe
what is the SID for the toes
100-110cm
what is the kV for toes
50-60kVp
what is the mAs for the toes
3-4mAs
