CT — Angio-CT cerebral și cervical (MCB)
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MCB Radiology — 5 CTA Head & Neck
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- 2026-09-27
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Documentul original MCB — Angio-CT cerebral și cervical
Protocol · 4 pagini · consultat la 2026-09-27.
Descarcă PDF-ul integral · Sursa MCB · Catalogul MCB pentru această modalitate
Instrucțiunile, valorile și ilustrațiile din documentul original sunt păstrate în engleză. Titlul și navigarea sunt în română.
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Textul documentului original
Pagina 1 — text în engleză
Updated 01/09/26 CTA Head/Neck (COW/Carotids) Reviewed 01/09/26 Indications - stroke, intracranial/carotid artery stenosis/occlusion/aneurysm, intracranial hemorrhage, trauma. Perform a routine noncontrast head first before CTA if one has not been performed within last 6 hours. This exam requires CT Angio Head & Neck w/ + w/o Contrast charge. All recons go in the same folder. GENERAL SCAN NOTES Remove any metal from the imaging field of view. Topogram - aortic arch through top of head. Craniocaudal coverage - aortic arch through top of head. Adjust FOV (field of view) on topogram to smallest without cropping anatomy. Scan parameters are the same as CTA neck protocol. IV Contrast: Administer weight-based Omnipaque-350 - 1 mL/kg up to 100 mL. Inject at 4 mL/sec followed by 40 mL saline flush, 20-gauge or larger in forearm or more proximal. Bolus track off aortic arch triggered at 100 HU. 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
CTA Head/Neck (COW/Carotids) SIEMENS PARAMETERS & RECONS Scan
Care
Rot Scan
Mode kV mAs Care
Dose kV & Lvl Pitch Acq Coll Time Time Sensation 16 spiral 120 140 on NA 1.15 16 0.75 0.5 11.6 Go Up 32 spiral 110 111 on on 145 1.20 32 0.7 0.8 9.5 Sensation 64 spiral 120 160 on NA 1.20 64 0.6 0.5 6.9 Definition 64 spiral 120 120 on on 1.40 64 0.6 0.3 3.6 Go Top 64 spiral 100 115 on on 145 1.20 64 0.6 0.33 2.3 80 300 Drive 128 spiral on on 0.90 64 0.6 0.28 5.2 sn 140 150 80 345 Force 192 spiral on on 0.90 64 0.6 0.25 4.6 140 69 RECONSTRUCTIONS CTA HEAD RECONS IR
Recon
Name of Series Kernel Thick Interval Window Lvl Direction AX COW 2.0 2.0 Bv36 / H20f CT angio feet/head 3 AX COW THINS 1.0 1.0 Bv36 / H20f CT angio 3 feet/head COR COW MIPS 2.0 front/back 2.0 Bv36 / H20f CT angio 3 SAG COW MIPS 2.0 2.0 Bv36 / H20f CT angio 3 left/right 3D VRT (spin) 0.75 0.5 CT angio Bv36 / B31f 3D VRT (tumble) 0.75 0.5 Bv36 / B31f CT angio CTA NECK RECONS AX CAROTIDS 2.0 2.0 feet/head Bv36 / H20f CT angio 3 AX CAROTIDS THINS 1.0 1.0 CT angio feet/head Bv36 / H20f 3 COR CAROTIDS MIPS 2.0 2.0 CT angio front/back Bv36 / H20f 3 SAG CAROTIDS MIPS 2.0 2.0 CT angio left/right Bv36 / H20f 3 CURVED RIGHT ICA MIPS 2.0 2.0 Bv36 / H20f CT angio left/right 3 CURVED LEFT ICA MIPS 2.0 2.0 CT angio left/right Bv36 / H20f 3 3D VRT (spin) 0.75 0.5 CT angio Bv36 / B31f
Care
Rot Scan
Mode kV mAs Care
Dose kV & Lvl Pitch Acq Coll Time Time Sensation 16 spiral 120 140 on NA 1.15 16 0.75 0.5 11.6 Go Up 32 spiral 110 111 on on 145 1.20 32 0.7 0.8 9.5 Sensation 64 spiral 120 160 on NA 1.20 64 0.6 0.5 6.9 Definition 64 spiral 120 120 on on 1.40 64 0.6 0.3 3.6 Go Top 64 spiral 100 115 on on 145 1.20 64 0.6 0.33 2.3 80 300 Drive 128 spiral on on 0.90 64 0.6 0.28 5.2 sn 140 150 80 345 Force 192 spiral on on 0.90 64 0.6 0.25 4.6 140 69 RECONSTRUCTIONS CTA HEAD RECONS IR
Recon
Name of Series Kernel Thick Interval Window Lvl Direction AX COW 2.0 2.0 Bv36 / H20f CT angio feet/head 3 AX COW THINS 1.0 1.0 Bv36 / H20f CT angio 3 feet/head COR COW MIPS 2.0 front/back 2.0 Bv36 / H20f CT angio 3 SAG COW MIPS 2.0 2.0 Bv36 / H20f CT angio 3 left/right 3D VRT (spin) 0.75 0.5 CT angio Bv36 / B31f 3D VRT (tumble) 0.75 0.5 Bv36 / B31f CT angio CTA NECK RECONS AX CAROTIDS 2.0 2.0 feet/head Bv36 / H20f CT angio 3 AX CAROTIDS THINS 1.0 1.0 CT angio feet/head Bv36 / H20f 3 COR CAROTIDS MIPS 2.0 2.0 CT angio front/back Bv36 / H20f 3 SAG CAROTIDS MIPS 2.0 2.0 CT angio left/right Bv36 / H20f 3 CURVED RIGHT ICA MIPS 2.0 2.0 Bv36 / H20f CT angio left/right 3 CURVED LEFT ICA MIPS 2.0 2.0 CT angio left/right Bv36 / H20f 3 3D VRT (spin) 0.75 0.5 CT angio Bv36 / B31f
Pagina 3 — text în engleză
CTA Head/Neck (COW/Carotids) GE PARAMETERS & RECONS Scan
Smart
Slice
Beam
Dose
Pitch Speed Rot
Type SFOV kV mA
Range Noise
Index mA Thick Coll Time Red ASIR Scan
Time LS 16 helical large 120 100-400 3.50 on 2.5 10 0.938 9.37 0.5 NA NA 17.1 Opt 540 helical large 120 100-400 3.50 on 2.5 10 0.938 9.37 0.5 NA NA 17.1 LS VCT 64 helical small body 120 100-450 6.50 on 2.5 20 0.969 19.37 0.5 20 20 8.3 0.969 19.37 0.5 NA NA 8.3 Disc VCT 64 helical small body 120 100-450 6.50 on 2.5 20 CTA HEAD RECONS Window
Recon Name of Series Thickness Interval Recon
Algorithm Width/Level Direction 2.5 2.5 std full 400/40 feet/head AX COW Must be first recon. AX COW THINS 1.25 1.25 std full 400/40 feet/head 2.5 2.5 std full 400/40 front/back COR COW MIPS SAG COW MIPS 2.5 2.5 std full 400/40 left/right 3D VRT (spin) 0.625 0.625 std full 400/40 3D VRT (tumble) 0.625 0.625 std full 400/40 CTA NECK RECONS AX CAROTIDS 2.5 2.5 std full 400/40 feet/head AX CAROTIDS THINS 1.25 1.25 std full 400/40 feet/head COR CAROTIDS MIPS 2.5 2.5 std full 400/40 front/back SAG CAROTIDS MIPS 2.5 2.5 std full 400/40 left/right 2.5 2.5 std full 400/40 left/right CURVED RIGHT ICA MIPS CURVED LEFT ICA MIPS 2.5 2.5 std full 400/40 left/right 3D VRT (spin) 0.625 0.625 std full 400/40
Smart
Slice
Beam
Dose
Pitch Speed Rot
Type SFOV kV mA
Range Noise
Index mA Thick Coll Time Red ASIR Scan
Time LS 16 helical large 120 100-400 3.50 on 2.5 10 0.938 9.37 0.5 NA NA 17.1 Opt 540 helical large 120 100-400 3.50 on 2.5 10 0.938 9.37 0.5 NA NA 17.1 LS VCT 64 helical small body 120 100-450 6.50 on 2.5 20 0.969 19.37 0.5 20 20 8.3 0.969 19.37 0.5 NA NA 8.3 Disc VCT 64 helical small body 120 100-450 6.50 on 2.5 20 CTA HEAD RECONS Window
Recon Name of Series Thickness Interval Recon
Algorithm Width/Level Direction 2.5 2.5 std full 400/40 feet/head AX COW Must be first recon. AX COW THINS 1.25 1.25 std full 400/40 feet/head 2.5 2.5 std full 400/40 front/back COR COW MIPS SAG COW MIPS 2.5 2.5 std full 400/40 left/right 3D VRT (spin) 0.625 0.625 std full 400/40 3D VRT (tumble) 0.625 0.625 std full 400/40 CTA NECK RECONS AX CAROTIDS 2.5 2.5 std full 400/40 feet/head AX CAROTIDS THINS 1.25 1.25 std full 400/40 feet/head COR CAROTIDS MIPS 2.5 2.5 std full 400/40 front/back SAG CAROTIDS MIPS 2.5 2.5 std full 400/40 left/right 2.5 2.5 std full 400/40 left/right CURVED RIGHT ICA MIPS CURVED LEFT ICA MIPS 2.5 2.5 std full 400/40 left/right 3D VRT (spin) 0.625 0.625 std full 400/40
Pagina 4 — text în engleză
CTA Head/Neck (COW/Carotids) PHILIPS PARAMETERS & RECONS Scan
Dose
3D
Scan
Mode kV Avg
mAs Index Dose Pitch Detect Colli Rot Time Time 1.00 3.0 Incisive 128 helical 120 203 22 on 1.00 64 0.625 CTA HEAD RECONS Name of Series Thick Interval Filter Window iDose Recon
Direction AX COW 2.0 2.0 B CTA 2 feet/head AX COW THINS 1.0 1.0 B CTA 2 feet/head COR COW MIPS 2.0 2.0 B CTA 2 front/back SAG COW MIPS 2.0 2.0 B CTA 2 left/right 3D VRT (spin) 0.75 0.5 B 3D VRT (tumble) 0.75 0.5 B CTA NECK RECONS AX CAROTIDS 2.0 2.0 B CTA 2 feet/head AX CAROTIDS THINS 1.0 1.0 B CTA 2 feet/head COR CAROTIDS MIPS 2.0 2.0 B CTA 2 front/back SAG CAROTIDS MIPS 2.0 2.0 B CTA 2 left/right CURVED RIGHT ICS MIPS 2.0 2.0 B CTA 2 left/right CURVED LEFT ICS MIPS 2.0 2.0 B CTA 2 left/right 3D VRT (spin) 0.75 0.5 B 3D VRT (tumble) 0.75 0.5 B
Dose
3D
Scan
Mode kV Avg
mAs Index Dose Pitch Detect Colli Rot Time Time 1.00 3.0 Incisive 128 helical 120 203 22 on 1.00 64 0.625 CTA HEAD RECONS Name of Series Thick Interval Filter Window iDose Recon
Direction AX COW 2.0 2.0 B CTA 2 feet/head AX COW THINS 1.0 1.0 B CTA 2 feet/head COR COW MIPS 2.0 2.0 B CTA 2 front/back SAG COW MIPS 2.0 2.0 B CTA 2 left/right 3D VRT (spin) 0.75 0.5 B 3D VRT (tumble) 0.75 0.5 B CTA NECK RECONS AX CAROTIDS 2.0 2.0 B CTA 2 feet/head AX CAROTIDS THINS 1.0 1.0 B CTA 2 feet/head COR CAROTIDS MIPS 2.0 2.0 B CTA 2 front/back SAG CAROTIDS MIPS 2.0 2.0 B CTA 2 left/right CURVED RIGHT ICS MIPS 2.0 2.0 B CTA 2 left/right CURVED LEFT ICS MIPS 2.0 2.0 B CTA 2 left/right 3D VRT (spin) 0.75 0.5 B 3D VRT (tumble) 0.75 0.5 B