CT — Suprarenale (MCB)
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MCB Radiology — 14 Adrenal
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Documentul original MCB — Suprarenale
Protocol · 4 pagini · consultat la 2026-09-27.
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Textul documentului original
Pagina 1 — text în engleză
Updated 03/09/25 CT Adrenal Reviewed 05/14/25 Indications - adrenal mass/adenoma/pheochromocytoma/hemorrhage, abnormal endocrine function, hyperaldosteronism, hypercortisolism, Cushing's disease. 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). Delay phase - abdomen only (lung bases to iliac crests) (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: generally not given for this protocol. After the pre contrast scan: Send the pre contrast recons to PACS then have an Rad check the images. If there is no mass or the mass has a HU <10, then it is very likely a benign adenoma and the SCAN CAN BE STOPPED HERE. Also if mass has been evaluated with CT or MRI before, check with a Rad to see if a full protocol needs to be performed. Usually don't need repeated full protocols on adrenal masses. 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.
Pagina 2 — text în engleză
CT Adrenal SIEMENS PARAMETERS & RECONS For the Pre Contrast phase: Scan
Care
Scan
Mode kV mAs Care
Dose Pitch Acq Coll Rot kV & Lvl Time Time Sensation 16 spiral 120 200 on 0.80 16 0.75 NA 0.5 15.6 Go Up 32 spiral 130 92 on 0.80 32 0.7 0.8 on 145 13.4 Sensation 64 spiral 120 200 on 1.20 64 0.6 0.5 NA 3.3 Definition 64 spiral 120 180 on 0.60 64 0.6 0.5 13.0 off Go Top 64 spiral 120 112 on on 145 0.80 64 0.6 0.5 4.9 Drive 128 spiral 120 147 on 0.60 128 0.6 on 0.5 6.5 Force 192 spiral 120 147 on 0.60 192 0.6 0.5 on 4.3 For the Venous (60 secs) & Delay (15 mins) phase: Scan
Care
Rot Scan
Pitch Acq Coll Mode kV mAs Care
Dose kV & Lvl Time Time Sensation 16 spiral 120 200 on 0.80 16 1.5 NA 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 0.60 64 0.6 on 0.5 21.7 Go Top 64 spiral 120 112 on on 145 0.80 64 0.6 0.5 8.1 Drive 128 spiral 120 147 on 0.60 128 0.6 on 0.5 10.9 Force 192 on spiral 120 147 on 0.60 192 0.6 0.5 7.2 PRE CONTRAST PHASE IR
Name of Series Thick Interval Window Recon
Direction Kernel Lvl AX PRE 3.0 3.0 Br40 / B41f mediastinum head/feet 3 COR PRE 3.0 3.0 mediastinum Br40 / B41f 3 front/back AX PRE THINS 1.0 1.0 mediastinum head/feet Br40 / B41f 3 VENOUS PHASE (60 secs) AX 60 SECS 3.0 3.0 mediastinum head/feet Br40 / B41f 3 COR 60 SECS 3.0 3.0 mediastinum Br40 / B41f 3 front/back SAG 60 SECS 3.0 3.0 mediastinum Br40 / B41f 3 left/right DELAY PHASE (15 mins) AX 15 MINS 3.0 3.0 mediastinum Br40 / B41f 3 head/feet
Care
Scan
Mode kV mAs Care
Dose Pitch Acq Coll Rot kV & Lvl Time Time Sensation 16 spiral 120 200 on 0.80 16 0.75 NA 0.5 15.6 Go Up 32 spiral 130 92 on 0.80 32 0.7 0.8 on 145 13.4 Sensation 64 spiral 120 200 on 1.20 64 0.6 0.5 NA 3.3 Definition 64 spiral 120 180 on 0.60 64 0.6 0.5 13.0 off Go Top 64 spiral 120 112 on on 145 0.80 64 0.6 0.5 4.9 Drive 128 spiral 120 147 on 0.60 128 0.6 on 0.5 6.5 Force 192 spiral 120 147 on 0.60 192 0.6 0.5 on 4.3 For the Venous (60 secs) & Delay (15 mins) phase: Scan
Care
Rot Scan
Pitch Acq Coll Mode kV mAs Care
Dose kV & Lvl Time Time Sensation 16 spiral 120 200 on 0.80 16 1.5 NA 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 0.60 64 0.6 on 0.5 21.7 Go Top 64 spiral 120 112 on on 145 0.80 64 0.6 0.5 8.1 Drive 128 spiral 120 147 on 0.60 128 0.6 on 0.5 10.9 Force 192 on spiral 120 147 on 0.60 192 0.6 0.5 7.2 PRE CONTRAST PHASE IR
Name of Series Thick Interval Window Recon
Direction Kernel Lvl AX PRE 3.0 3.0 Br40 / B41f mediastinum head/feet 3 COR PRE 3.0 3.0 mediastinum Br40 / B41f 3 front/back AX PRE THINS 1.0 1.0 mediastinum head/feet Br40 / B41f 3 VENOUS PHASE (60 secs) AX 60 SECS 3.0 3.0 mediastinum head/feet Br40 / B41f 3 COR 60 SECS 3.0 3.0 mediastinum Br40 / B41f 3 front/back SAG 60 SECS 3.0 3.0 mediastinum Br40 / B41f 3 left/right DELAY PHASE (15 mins) AX 15 MINS 3.0 3.0 mediastinum Br40 / B41f 3 head/feet
Pagina 3 — text în engleză
CT Adrenal GE PARAMETERS & RECONS For the Pre Contrast, Venous (60 secs) & Delay (15 mins) phases: Scan
Smart
Slice
Beam
Rot
Dose
Scan
Type SFOV kV mA
Range Noise
Index mA Thick Coll Pitch Time Speed Time Red ASIR LS 16 helical large 120 50-440 16.36 on 2.5 20 1.375 27.50 10.9 0.6 NA NA 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 AX PRE 2.5 2.5 std full 400/40 head/feet Must be first recon. COR PRE 2.5 2.5 std full 400/40 front/back AX THINS 1.25 1.25 std full 400/40 head/feet VENOUS PHASE (60 secs) AX 60 SECS 2.5 2.5 std full 400/40 head/feet Must be first recon. COR 60 SECS 2.5 2.5 std full 400/40 front/back SAG 60 SECS 2.5 2.5 std full 400/40 left/right DELAY PHASE (15 mins) AX 15 MINS 2.5 2.5 std full 400/40 head/feet Must be first recon.
Smart
Slice
Beam
Rot
Dose
Scan
Type SFOV kV mA
Range Noise
Index mA Thick Coll Pitch Time Speed Time Red ASIR LS 16 helical large 120 50-440 16.36 on 2.5 20 1.375 27.50 10.9 0.6 NA NA 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 AX PRE 2.5 2.5 std full 400/40 head/feet Must be first recon. COR PRE 2.5 2.5 std full 400/40 front/back AX THINS 1.25 1.25 std full 400/40 head/feet VENOUS PHASE (60 secs) AX 60 SECS 2.5 2.5 std full 400/40 head/feet Must be first recon. COR 60 SECS 2.5 2.5 std full 400/40 front/back SAG 60 SECS 2.5 2.5 std full 400/40 left/right DELAY PHASE (15 mins) AX 15 MINS 2.5 2.5 std full 400/40 head/feet Must be first recon.
Pagina 4 — text în engleză
CT Adrenal PHILIPS PARAMETERS & RECONS For the Pre Contrast, Venous (60 secs) & Delay (15 mins) phases: Scan
Dose
3D
Rot Scan
Mode kV Avg
mAs Index Dose Pitch Detect Colli Time Time 9.4 Incisive 128 helical 120 115 20 on 1.00 64 0.625 0.75 PRE CONTRAST PHASE Name of Series Thick Interval Filter Window iDose Recon
Direction AX PRE 3.0 3.0 B mediastinum 3 head/feet COR PRE 3.0 3.0 B mediastinum 3 front/back AX PRE THINS 1.0 1.0 B mediastinum 3 head/feet VENOUS PHASE (70 secs) AX 60 SECS 3.0 3.0 B mediastinum 3 head/feet COR 60 SECS 3.0 3.0 B mediastinum 3 front/back SAG 60 SECS 3.0 3.0 B mediastinum 3 left/right DELAY PHASE (15 mins) AX 15 MINS 3.0 3.0 B mediastinum 3 head/feet
Dose
3D
Rot Scan
Mode kV Avg
mAs Index Dose Pitch Detect Colli Time Time 9.4 Incisive 128 helical 120 115 20 on 1.00 64 0.625 0.75 PRE CONTRAST PHASE Name of Series Thick Interval Filter Window iDose Recon
Direction AX PRE 3.0 3.0 B mediastinum 3 head/feet COR PRE 3.0 3.0 B mediastinum 3 front/back AX PRE THINS 1.0 1.0 B mediastinum 3 head/feet VENOUS PHASE (70 secs) AX 60 SECS 3.0 3.0 B mediastinum 3 head/feet COR 60 SECS 3.0 3.0 B mediastinum 3 front/back SAG 60 SECS 3.0 3.0 B mediastinum 3 left/right DELAY PHASE (15 mins) AX 15 MINS 3.0 3.0 B mediastinum 3 head/feet