Pelvis and abdomen xray Flashcards
Ap pelvis position
Supine
Asis equidistant from table
Externally rotate legs so toes touch
Arms on chest
If using ball bearing, groin area
Ap pelvis centring point
Midway between symphysis pubis and asis
Ap pelvis essential image characteristics
Iliac crests and trochanters visible
Sacrum visible
Collimation: 5cm above iliac crests to proximal 1/3 femurs and skin margins
Ap hip position
Supine
Asis equidistant from table
Rotate limb so toes touch
Hands in chest
Ball in groin area if used
Ap hip centring point
2.5cm below lesser trochanter
Ap hip essential image characteristics
Trochanters and acetabular floor visible
Collimation: Proximal 1/3 femur visible to skin margins
Hbl hip position
Supine
Unaffected limb raised until thigh vertical knee flexed
Tube angle 45
Hbl hip centring point
Midway between femoral pulse and greater trochanter
Hbl hip characteristics
No foreshortening of femoral neck
High kv
Proximal 1/3 femur
Frog legs position
Supine
Asis equidistant
Hips and knees flexed rotate laterally 60
Sole of feet touching
Frog leg centring point
Midline at femoral pulse level
Frog leg essential image characteristics
Hip joints visible
Collimation: proximal third femur, iliac crests, skin margins
Hip turned lateral position
Supine, extend legs, turn 45 to affected side
Flex hip so thigh 90 to body and contact table
Hip turned lateral centring point
Femoral pulse 2.5cm below halfway between symphysis pubis and asis
Ap abdomen position
Supine
Asis equidistant from table
Arrested expiration
