To include the entire aortic vasculature
Scan Comments: Dual energy is useful for post processing applications such as bone removal and virtual noncontrast. Utilizing these processing techniques, it is possible to eliminate the noncontrast image acquisition phase when following up aortic stent placement. All scans are performed using the ALARA principle. A 3D Post Processing is performed with this protocol.
100 / 140
Care Dose Reference mAs
250 / 193
Average Acquisition Time
32 x 0.6mm
Comments: Images are acquired using 100 / 140 kVp setting with a SN filter. CareDose 4D is used to reduce patient exposure. The pitch value should remain below 1.0 to reduce any artifacts during post processing.
Window Width and Level
Reconstruction Comments: Additionally, a lung reconstruction is performed using 3mm x 3mm slices with a B80f algorithm, and a window width and level of 1600/-500. When generating mixed images, the DE composition is set to 0.8. Coronal and sagittal image reconstructions are also performed.
Comments: Bolus tracking is performed off the abdominal aorta using a 230 HU trigger setting.