CTA Lower Extremity Run-Off with IV Contrast ACQUISITION Patient Position Supine Contrast IV: up to 150 ml Omni 350, See weight chart. RECONSTRUCTION Saline: 40 ml Injection Rate 4 ml/sec preferred. WEIGHT Minimum 20g PIV. See guidelines for other IV access lines. Breath hold: inspiration A1 Algorithm Soft tissue Thickness 2 mm Spacing 1 mm FOV Patient width + 4 cm Respiration < 100 lbs 1 ml per lb Volume 100-199 lbs 100 ml Acquisition >200 lbs 150 ml REFORMATION Appropriate to achieve images as specified in following reconstruction tables. A1R1 Algorithm Soft tissue MIP A Iliac Crest Thickness 10 mm Arterial Spacing 5 mm BT End Feet Plane Coronal Bolus track at A1R2 Algorithm Soft tissue MIP level Thickness 10 mm of Spacing 5 mm scan start Plane Sagittal HU trigger on aorta INDICATIONS Aneurysm Dissection Claudication Vascular disease of legs Black toe Skin ulceration Rest pain Peripheral vascular disease
CTA Lower Extremity Run-Off with IV Contrast ACQUISITION Patient Position Supine Contrast IV: up to 150 ml Omni 350, See weight chart. Saline: 40 ml Injection Rate 4 ml/sec preferred. Minimum 20g PIV. See guidelines for other IV access lines. Respiration Breath hold: inspiration Volume Acquisition Appropriate to achieve images as specified in following reconstruction tables. A Arterial Iliac Crest BT Bolus track at level of scan start HU trigger on aorta End Feet RECONSTRUCTION WEIGHT A1 Algorithm Soft tissue Thickness 2 mm Spacing 1 mm FOV Patient width + 4 cm < 100 lbs 1 ml per lb 100-199 lbs 100 ml >200 lbs 150 ml REFORMATION 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 INDICATIONS Aneurysm Dissection Claudication Vascular disease of legs Black toe Skin ulceration Rest pain Peripheral vascular disease
cta_lower_extremity_wo_abd_runoff.docx