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Part position for AP Chest
midsagittal plane (MSP) in center of IR
Top of IR 2 inches above relaxed shoulders
no leaning or rotation
CR for AP Chest
perpendicular to long axis of sternum and IR
enters approx 3 inches below jugular notch at level of T7
exposure made on inspiration
Structures shown on AP Chest
heart
trachea
diaphragmatic domes
entire lung fields
vascular markings
Part position for AP/PA Chest Lateral Decubitus
recumbent right or left lateral, dependent on condition and/or pathology
knee flexed
place firm support under body to elevate 2 to 3 inches
raise arms over head or our of anatomy of interest
protect patient from rolling off bed
CR for AP/PA Lateral Decub
horizontal and perpendicular to IR
enters approx. 3 inches below jugular notch at level of T7
Structures shown in AP/PA Chest Lateral Decubs
anatomy of the thorax
entire lung fields
air or fluid levels if present
Part Position of AP Abdomen
place IR under body centered to MSP and level of iliac crests
if upper abdomen of interest, center IR 2 inches above iliac crests
align shoulders and hips in same place
CR of AP Abdomen
perpendicular to center of IR
enters at MSP at level of iliac crests or 2 inches above (for diaphragm)
expose on expiration
Structures shown on AP Abdomen
Inferior margin of the liver
the spleen
kidneys
psoas muscles
evidence of tumor masses
size and shape of liver if upper abdomen and diaphragm included
Part Position for Left lateral AP/PA abdomen decub
recumbent left lateral position
flex knees for comfort and stability
true lateral without rotation
place vertical IR/grid centered at 2 inches above iliac crests to demonstrate diaphragm
CR for AP/PA Abdomen left lateral decub
horizontal and perpendicular to center of grid
enters at MSP at level 2 inches above iliac crests
exposure made on expiration
Structures shown on Left lateral abdomen decub
air or fluid levels within abdomen if present
right border of the abdomen must be visualized
well defined diaphragm and abdominal viscera
Part Position for AP Pelvis
place IR/grid under pelvis centered to MSP at level midway between between ASIS and pubic symphysis
rotate legs medially approx. 15 degrees when not contraindicated
CR for AP Pelvis
Perpendicular to IR center
enters patient at MSP at 2 inches above pubic symphysis and 2 inches below ASIS
exposure made at end of expiration
Structures shown on AP Pelvis
both hip bones
the sacrum and coccyx
the head,neck and trochanters
prox portion of the femora
Part Position of AP Femur
distal end of grid low enough to include fracture site, pathology, and knee joint
ensure proper IR/grid alignment with CR and parallel with femoral condyles
CR for AP Femur
Perpendicular to long axis of femur and center of grid
CR and IR/ grid must be aligned (to prevent cutoff)
For lateral femur which projection is preferred?
Mediolateral because it provides more visualization of proximal femur
Part position for lateral Cervical spine
Top of grid approx. 1 inch above EAM and centered to C4
CR for lateral cervical spine
horizontal and perpendicular to center of grid
enters level of C4
60-72 inches SID is recommended to help demonstrate C7