CT — Pancreatită (MCB)

Updated 03/09/25 CT Pancreatitis Reviewed 05/14/25 Indications - acute pancreatitis, pancreatic hemorrhage or necrosis, peripancreatic fluid collection. GENERAL SCAN NOTES Move the patient's arms over his/her head if possible. Remove any metal from the imaging field of view. Topogram - lung bases through pubic symphysis (obtained during end inspiration). Craniocaudal scan coverage: Pre contrast - abdomen only (lung bases to iliac crests) (obtained during end inspiration). Venous phase - abdomen/pelvis (lung bases through pubic symphysis) (obtained during end inspiration). If only the abdomen is ordered, only image the abdomen regardless of what coverage areas below indicate. Adjust FOV (field of view) on topogram to smallest without cropping anatomy. IV Contrast: Administer weight-based Omnipaque-300 - 1 mL/kg up to 150 mL (100 mL minimum). Inject at 3 mL/sec followed by 40 mL saline flush, 20-gauge or larger in forearm or more proximal. Oral Contrast: Give routine oral contrast 45 mins before and another 8 oz cup 5 mins before patient gets on scanner. 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.

CT Pancreatitis SIEMENS PARAMETERS & RECONS For the Pre Contrast and Venous (70 secs) phases: Scan
Care
Scan
Mode kV mAs Care
Dose kV & Lvl Pitch Acq Coll Rot Time Time Sensation 16 spiral 120 200 on NA 0.80 16 1.5 0.5 13.0 Go Up 32 spiral 130 92 on on 145 0.80 32 0.7 0.8 22.3 Sensation 64 spiral 120 200 on NA 1.20 24 1.2 0.5 7.2 Definition 64 spiral 120 180 on 21.7 off 0.60 64 0.6 0.5 Go Top 64 spiral 120 112 on on 145 0.80 64 0.6 0.5 8.1 Drive 128 spiral 120 147 on on 0.60 128 0.6 0.5 10.9 Force 192 spiral 120 147 on on 0.60 192 0.6 0.5 7.2 PRE CONTRAST PHASE Name of Series Thick Interval Window Recon
Kernel IR
Lvl Direction Br40 / B41f AX PRE 3.0 3.0 mediastinum 3 head/feet VENOUS PHASE (70 secs) AX VENOUS 3.0 3.0 mediastinum Br40 / B41f 3 head/feet COR VENOUS 3.0 3.0 mediastinum front/back Br40 / B41f 3 SAG VENOUS 3.0 3.0 mediastinum Br40 / B41f 3 left/right

CT Pancreatitis GE PARAMETERS & RECONS For the Pre Contrast and Venous (70 secs) phases: Scan
Smart
Slice
Beam
Dose
Scan
Type SFOV kV mA
Range Noise
Index mA Thick Coll Pitch Speed Rot
Time Red ASIR Time LS 16 helical large 120 50-440 16.36 on 1.375 27.50 2.5 20 0.6 NA NA 10.9 Opt 540 helical large 120 50-440 16.36 on 2.5 20 1.375 27.50 0.6 NA NA 10.9 LS VCT 64 helical large body 120 50-650 16.36 on 2.5 40 1.375 55.00 0.5 50 50 4.5 Disc VCT 64 helical large body 120 50-650 16.36 on 2.5 40 1.375 55.00 0.5 NA NA 4.5 PRE CONTRAST PHASE Window
Recon
Name of Series Thickness Interval Recon
Algorithm Width/Level Direction head/feet AX PRE 2.5 2.5 std full 400/40 Must be first recon. VENOUS PHASE (70 secs) AX VENOUS 2.5 2.5 std full 400/40 head/feet Must be first recon. COR VENOUS 2.5 2.5 std full 400/40 front/back SAG VENOUS 2.5 2.5 std full 400/40 left/right

CT Pancreatitis PHILIPS PARAMETERS & RECONS For the Pre Contrast and Venous (70 secs) phases: 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 120 115 20 9.4 PRE CONTRAST PHASE Name of Series Thick Interval Filter Window iDose Recon
Direction AX PRE 3.0 3.0 B mediastinum 3 head/feet VENOUS PHASE (70 secs) AX VENOUS 3.0 3.0 B mediastinum 3 head/feet COR VENOUS 3.0 3.0 B mediastinum 3 front/back SAG VENOUS 3.0 3.0 B mediastinum 3 left/right