The lumbar spine and sacrum/coccyx were grouped together due to having similar part thickness. Both a lumbar spine and a sacrum/coccyx are in about the same area and need a grid to properly image because the anatomy is greater than 10cm. This made both parts have the same kVp of 80. We used the technique we got from the abdomen series as a baseline and made small changes needed to get a optimal image.
*Lateral L-Spine
This Image of the lumbar spine Is good because we can see the superior portion of S1 and the lower portion of the T-spine. The Intervertebral disk spaces are open and you can see no rotation.
AP L-Spine
80 kVp 20mAs
Grid 10:1
10x17 FOV
40" SID
DI -0.3
Oblique L-Spine
80 kVp 25mAs
Grid 10:1
10x17 FOV
40" SID
DI -0.4
Lateral L-Spine
80kVp 25 mAs
Grid 10:1
10x17 FOV
40" SID
DI -0.2
L5-S1 (Spot) L-Spine
90 kVp 32 mAs
Grid 10:1
8x10 FOV
40" SID
DI -0.3
*Lateral Sacrum/Coccyx
This Image of the sacrum/coccyx is well done because you can see the entire sacrum and coccyx in profile laterally. You can see the lumbosacral joint space opened.
AP Axial Sacrum/Coccyx
80 kVp 22 mAs
Grid 10:1
10x12 FOV
40" SID
DI -1
Lateral Sacrum/Coccyx
80 kVp 50@200 mAs
Grid 10:1
10x12 FOV
40" SID
DI -0.6