CTA Chest Aorta ACQUISITION Patient Position Supine Contrast IV: Up to100 ml Omni 350, See weight chart. Saline: 40 ml RECONSTRUCTION Oral: N/A Injection Rate 4 ml/sec preferred. REFORMATION Minimum 20g PIV. See guidelines for other IV access lines. Respiration Breath hold: inspiration A1 Algorithm Soft tissue Thickness 2 mm Spacing 1 mm FOV Patient width + 4 cm Volume Appropriate Acquisition specified in A1R1 Algorithm Soft tissue MIP Specs Gating If A Arterial Thoracic A1R2 Algorithm Soft tissue MIP Thickness 10 mm Spacing 5 mm Plane Sagittal Thickness 10 mm Begin Spacing 5 mm BT Bolus track at level End Aortic bifurcation of aortic arch. Plane Coronal HU trigger on descending aorta A1R1 A1R2 OTHER WEIGHT CHART *Cardiac gating: < 100 lbs 1 ml per lb Leads placed as shown. > 100 lbs 100 ml Reconstruction End-diastole 75%RR CTA Chest Aorta INDICATIONS Aneurysm Aortic regurgitation
CTA Chest Aorta ACQUISITION Patient Position Supine Contrast IV: Up to100 ml Omni 350, See weight chart. Saline: 40 ml Oral: N/A Injection Rate 4 ml/sec preferred. Minimum 20g PIV. See guidelines for other IV access lines. Respiration Breath hold: inspiration Volume Acquisition Specs Appropriate specified in Gating If A Arterial Begin Thoracic BT Bolus track at level of aortic arch. HU trigger on descending aorta End Aortic bifurcation RECONSTRUCTION REFORMATION A1 Algorithm Soft tissue Thickness 2 mm Spacing 1 mm FOV Patient width + 4 cm A1R1 Algorithm Soft tissue MIP Thickness 10 mm Spacing 5 mm Plane Coronal A1R2 Algorithm Soft tissue MIP Thickness 10 mm Spacing 5 mm Plane Sagittal A1R1 A1R2 < 100 lbs 1 ml per lb > 100 lbs 100 ml OTHER WEIGHT CHART *Cardiac gating: Leads placed as shown. Reconstruction End-diastole 75%RR CTA Chest Aorta INDICATIONS Aneurysm Aortic regurgitation
cta_chest_aorta.docx