CT — Coloană lombară (MCB)

Updated 05/03/25 CT Lumbar Spine Reviewed 05/14/25 Indications - pain, trauma, fracture, stenosis, spondylosis, spondylolisthesis, radiculopathy, extremity weakness, extremity paresthesia, disc rupture, disc herniation, mass, infection, pre/post surgical evaluation. GENERAL SCAN NOTES Move patient's arms over head if possible. Remove any metal from the imaging field of view. Topogram - T12 through bottom of SI joints. Craniocaudal scan coverage - T12 through bottom of SI joints. Adjust FOV (field of view) on topogram to smallest without cropping anatomy. IV Contrast: 100 mL Omnipaque-300, inject at 2.5 mL/sec, 60 secs scan delay. For GE scanners, it is essential for the 1st recon thickness on the scanner to match the 1st recon thickness in this protocol book for the prescribed Noise Index to be valid. The 1st recon should generally be the thickest recon in the protocol. SIEMENS PARAMETERS & RECONS Scan
Care
Scan
Mode kV mAs Care
Dose kV & Lvl Pitch Acq Coll Rot Time Time NA 0.80 16 1.5 0.75 Sensation 16 spiral 120 300 on 11.7 Go Up 32 spiral 130 182 on on 285 0.80 32 0.7 1.0 16.7 NA 0.90 64 0.6 1.0 Sensation 64 spiral 120 300 on 17.4 Definition 64 spiral 120 330 on on 0.80 64 0.6 1.0 19.5 on 285 0.80 64 0.6 1.0 Go Top 64 spiral 120 219 on 9.8 Drive 128 spiral 120 232 on on 0.80 128 0.6 1.0 9.8 on 0.80 192 0.6 1.0 Force 192 spiral 130 193 on 6.5 Recon
Name of Series Thick Interval Kernel Window IR
Lvl Direction AX SOFT 3.0 3.0 Br40 / H31s abdomen 3 head/feet AX BONE 3.0 3.0 Br59 / H70s bone/osteo 3 head/feet COR BONE 3.0 3.0 Br59 / H70s bone/osteo 3 front/back SAG BONE 3.0 3.0 Br59 / H70s bone/osteo 3 left/right Send the above recons on the pre contrast scan (if without only) or on the post contrast scan (if IV given). Send only the following recon on the pre contrast scan (if without and with). 3 head/feet AX SOFT PRE 3.0 3.0 Br40 / H31s abdomen The axial, coronal and sagittal recons are relative to the plane of the spine and may not necessarily be true axial, coronal and sagittal planes.

CT Lumbar Spine GE PARAMETERS & RECONS Scan
Smart
Slice
Beam
Dose
Type SFOV kV mA
Range Noise
Index mA Thick Coll Pitch Speed Rot
Time Red ASIR Scan
Time LS 16 helical large 120 100-440 13.50 on 2.5 20 1.375 27.50 0.5 NA NA 5.5 Opt 540 helical large 120 1.375 27.50 0.5 NA 100-440 13.50 on 2.5 20 NA 5.5 LS VCT 64 helical large body 120 100-450 16.00 on 2.5 40 1.375 55.00 0.5 20 20 2.7 Disc VCT 64 40 1.375 55.00 helical large body 120 100-450 16.00 on 2.5 0.5 NA NA 2.7 Window
Recon Name of Series Thickness Interval Recon
Algorithm Width/Level Direction AX SOFT 2.5 2.5 std full 400/40 head/feet Must be first recon. AX BONE 2.5 2.5 bone full 2500/480 head/feet COR BONE 2.5 2.5 bone full 2500/480 front/back SAG BONE 2.5 2.5 bone full 2500/480 left/right Send the above recons on the pre contrast scan (if without only) or on the post contrast scan (if IV given). Send only the following recon on the pre contrast scan (if without and with). AX SOFT PRE 2.5 2.5 std full 400/40 head/feet The axial, coronal and sagittal recons are relative to the plane of the spine and may not necessarily be true axial, coronal and sagittal planes. PHILIPS PARAMETERS & RECONS Scan
Dose
3D
Scan
Mode kV Avg
mAs Index Dose Pitch Detect Colli Rot Time Time on 1.00 64 0.625 0.75 Incisive 128 helical 120 162 24 5.6 Name of Series Thick Interval Filter Window iDose Recon
Direction AX SOFT 3.0 3.0 B abdomen 3 head/feet AX BONE 3.0 3.0 YB bone 3 head/feet COR BONE 3.0 3.0 YB bone 3 front/back SAG BONE 3.0 3.0 YB bone 3 left/right Send the above recons on the pre contrast scan (if without only) or on the post contrast scan (if IV given). Send only the following recon on the pre contrast scan (if without and with). 3 head/feet AX SOFT PRE 3.0 3.0 B abdomen The axial, coronal and sagittal recons are relative to the plane of the spine and may not necessarily be true axial, coronal and sagittal planes.