Lecture (13). Toes Basic Projections AP Oblique AP Toes Exposure Factors KvmAsFFD...

Lecture (13)

• Toes • Basic Projections • AP• Oblique

AP Toes

Exposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

55 5 100 No Fine 24 x 30 cm

Patient position Supine or seated on tableKnees flexed with feet separate

• Part position• Center toes with plantar surface flat Against cassette• Central Ray

15 degrees towards heal• Center Point • 3rd metatarsophalangeal joint• Structure shown• Metatarsals & phalanges

• Oblique Toes Patient position Supine or seated on tableKnees flexed with feet separatedPart positionCenter toes with plantar surface flat Against cassetteMedially rotate leg&foot30-45 degreesCentral RayPerpendicularCenter Point 2 nd metatarcophalangeal jointStructure shownmetatarsals & phalanges Oblique view of

• Calcaneus• Basic Projections Lateral Axial Lateral CalcaneusExposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 5 100 No Fine 24 x 30 cm

Patient Position lying upon affected sideAdjust leg & foot in lateral positionPart positionAdjust patella perpendicular to table Adjust plantar surface perpendicularCenter Calcaneus to cassette

• Central Ray Perpendicular• Center Point

Mid point of Calcaneus • Structure shown Lateral view Calcaneus, talus and distal tibia &fibula

• Axial CalcaneusExposure Factors

Kv mAs FFD (cm) Grid Focus Cassette

60 5 100 No Fine 24 x 30 cm

Patient Position �ٍ Supine or seatedLeg fully extended Part positionAdjust cassette to ankle Adjust plantar surface perpendicularCenter Calcaneus to cassette

• Central Ray

40 degrees cephalic to long axis of foot • Center Point

In midline at level of 5th metatarsal • Structure shown

Axial view Calcaneus & Talo-calceneal joint