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L-spine posit

L-spine positioning for comp

QuestionAnswer
AP L-spine positioning center MSP, align shoulders and hips. Bend knees and hips to reduce lordosis
CR entry AP L-spine perpendicular entering L3, 1 1/2” above the iliac crests. Expose on expiration
Lateral L-spine positioning center MCP, flex hips and knees, ensure spine is horizontal
CR entry lateral L-spine CR entering L3 (1 ½” above the crests). Can use a 5 degree caudad angle for men, 8 degrees for women
CR entry L5,S1 spot 2” posterior and 1 ½” inferior to elevated ASIS. Angle 5 degrees caudad on males and 8 degrees on females
Oblique L-spine positioning and CR entry 45 degree obliquity, CR entering 2” medial to the elevated ASIS and 1 ½” superior to the crests
External landmark for L2, L3 inferior costal margin
External landmark for L4, L5 superior iliac crests
External landmark for S1, S2 ASIS
External landmark for coccyx pubic symphysis
eval criteria for AP L-spine lower T-spine to sacrum included, collimated to lateral psoas muscles, open IV joint spaces, equidistant SI joints, spinous processes centered, penetration and no artifact.
eval criteria for lateral L-spine lower T-spine to sacrum, open IV joint spaces, superimposed posterior body, vertebrae centered on image, nearly superimposed iliac crests, spinous process in profile
eval criteria for spot film L-spine open lumbosacral joint, entire L5 and upper sacrum, close collimation
Created by: annaluz87