CTA Neck
9/14/2021
Indication: Carotid Stenosis / Dissection
Coverage: Carina to Sella Turcica
Noise Index
GE 16 slice: 12.73
GE VCT: 14.14
Smart Prep Carotid with slice through arch of aorta
Helical 3.75mm x 3.75mm Standard Algorithm
Recon 2: 2.5mm x 2.5mm Standard Algorithm
Recon 3: 0.625mm spacing x 1.25mm thickness Standard Algorithm
Sag/Cor 2mm x 2mm MIPS from Recon 3
Sag/Cor 2mm x 2mm Reformats from Recon 3 in Standard Algorithm
Curved Reformats on AW
3D Surface rendered series
Send recon 2, MIPS, Sag/Cor Reformats, Curved Reformats, and the 3D surface rendered series to PACS
See Page 7 for growing vessels
CTA Head
9/14/2021
Indication: SAH/ Aneurysm / Intracerebral Hemorrhage
Coverage: C2 to Top of Head
Non-contrast head
Smart Prep with slice through arch of aorta
Helical 3.75mm x 3.75mm Standard Algorithm
Recon 2: 2.5mm x 2.5mm Standard Algorithm
Recon 3: 0.625mm spacing x 1.25mm thickness Standard Algorithm
Sag/Cor 2mm x 2mm MIPS from Recon 3
Sag/Cor 2mm x 2mm Reformats from Recon 3 in Standard Algorithm
3D Surface rendered series
Send recon 2, MIPS, Sag/Cor Reformats, and the 3D surface rendered series to PACS
Delayed CT head not necessary per Dr. Gray (1/21/19)
See Page 7 for growing vessels
CTA Head and Neck
9/14/2021
Indication: Acute Stroke / Dissection
Coverage: Carina to Top of Head
Noise Index
GE 16 slice: 12.73
GE VCT: 14.14
Smart Prep Carotid with slice through arch of aorta
Helical 3.75mm x 3.75mm Standard Algorithm
Recon 2: 2.5mm x 2.5mm Standard Algorithm
Recon 3: 0.625mm spacing x 1.25mm thickness Standard Algorithm
Sag/Cor 2mm x 2mm MIPS from Recon 3
Sag/Cor 2mm x 2mm Reformats from Recon 3 in Standard Algorithm
Curved Reformats on AW
3D Surface rendered series
Send recon 2, MIPS, Sag/Cor Reformats, Curved Reformats, and the 3D surface rendered series to PACS
Delayed CT head not necessary per Dr. Gray (1/21/19)
See Page 7 for growing vessels
CTA Chest
10/4/2017
Smart Prep Aorta
Injection 4cc per second
Helical: 1.25mm x 1.25mm Standard algorithm
Recon 2: 2.5mm x 2.5mm Lung Algorithm
Sag and Cor 10mm x 2mm MIPS using initial acquisition and 2mm x 2mm Sag and Cor
Reformats in Lung Algorithm
Send all to PACS
Stent Graft Protocol: Add 15-20 second delay through Stent Graft Area
Chest for PE
08/19/2018
Smart Prep at Pulmonary Artery
Injection 4cc per second(Needs 18ga IV in Right AC)
Helical: 1.25mm x 1.25mm Standard algorithm
Recon 2: 2.5mm x 2.5mm Lung Algorithm
Rotation Time 0.5 seconds
Sag and Cor 10mm x 2mm MIPS using initial acquisition
Sag and Cor 2mm x 2mm Reformats in Lung Algorithm
Send all to PACS
CTA A/P
1/29/2020
Smart Prep Aorta/Injection 4cc per second
Helical 2.5mm x 2.5mm Standard Algorithm
Recon 2: 0.625mm spacing x 1.25mm thickness Standard Algorithm
10mm x 2mm MIPS from Recon 2 and Sag and Cor 2mm x 2mm Reformats in Standard Algorithm
5mm Axial in Standard Algorithm
Send Initial acquisition, MIPS and Reformats to PACs
HOW TO INTERPRET ORDERS
IF ORDER STATES FOR, OR EVAL FOR ENDO LEAK, USE THE CTA EVAL FOR ENDO LEAK PROTOCOL.
IF ORDER STATES FOLLOW UP/POST EVAR(EndoVascular Aneurysm Repair) OR AAA REPAIR WITH NO MENTION OF CONTRAST OR IF THEY ASK FOR CONTRAST, JUST DO ARTERIAL PHASE (ROUTINE CTA A/P).
IF ORDER STATES FOLLOW UP/POST EVAR OR AAA REPAIR AND SAYS WITHOUT CONTRAST, WITHOUT IS FINE.
CTA AP with runoff for lower extremity arterial disease
1/29/2020
Axial – 2.5 mm – Arterial phase – Abdomen to bottom of feet (Smart Prep Aorta/Injection 4cc per second)
Recons: 0.625mm spacing x 1.25mm thickness Standard Algorithm
Axial – 5 mm recons – Abdomen and pelvis
Sagittal and Coronal recons – 2.5 mm – Abdomen and Pelvis
Sagittal and Coronal recons – 2.5 mm – Common femoral artery to above knee popliteal artery
Sagittal and Coronal recons – 2.5 mm – Above knee popliteal artery to foot
Sagittal and Coronal – MIPS (10mm x 2mm)- Aortic bifurcation to feet
3D reconstructions – aortic bifurcation to feet
CTA Eval for Endo Leak
9/24/2021
Abdomen and pelvis:
- Non-contrast – Axial – 2.5 mm
- Arterial phase – Axial – 2.5 mm (Smart Prep Aorta/Injection 4cc per second)
- Delayed phase – Axial – 2.5 mm (3-5 delay just through the aneurysm/area of interest)
- Recons: 0.625mm spacing x 1.25mm thickness Standard Algorithm
- Axial – 5 mm – arterial phase
- Sagittal and coronal – 2.5 mm – arterial phase
- Sagittal and coronal – 2.5 mm – venous phase
- Sagittal and Coronal – MIPS (10mm x 2mm)
HOW TO INTERPRET ORDERS
IF ORDER STATES FOR, OR EVAL FOR ENDO LEAK, USE THE ABOVE PROTOCOL.
IF ORDER STATES FOLLOW UP/POST EVAR(EndoVascular Aneurysm Repair) OR AAA REPAIR WITH EITHER NO MENTION OF CONTRAST, OR IF THEY ASK FOR CONTRAST, JUST DO ARTERIAL PHASE (ROUTINE CTA A/P).
IF ORDER STATES FOLLOW UP/POST EVAR OR AAA REPAIR AND INCLUDES “WITHOUT CONTRAST”, WITHOUT IS FINE.