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Cerebral Atrophy

Aquilion Prime SP Cerebral Atrophy

Aquilion Prime SP

68-year-old male presented with recurrent headaches. A non-contrast Head CT scan was performed with AIDR 3D, Adaptive Iterative Dose Reduction. Axial and Sagittal images demonstrate cerebral atrophy. *AAPM Report 96, k-factor 0.0021 *AAPM Report 96, k-factor 0.0021

View Scan Parameters

Scan Mode Helical

Collimation 0.5 mm x 40

kVp 120

mAs 240

Rotation Time 0.75 s

Scan Range 156 mm

Dose Reduction AIDR 3D

CTDlvol 57 mGy

DLP 995 mGy·cm

Effective Dose* 2.1 mSv

Aquilion Prime SP Head CT, CTDI 46.3 mgy

Aquilion Prime SP

Brain CT without iodinated contrast was performed with AIDR 3D Enhanced, Adaptive Iterative Dose Reduction, embedded into the protocol and automatically applied to the scan. AIDR 3D Enhanced allowed this case to be scanned with CTDI of 46.3 mGy and DLP of 794.8 mGy.cm. PUREViSION Optics permits the x-ray spectrum to be optimized for low dose and high image quality scanning. Multiplanar Reconstruction (MPR) demonstrates senile cortical atrophy. *AAPM Report 96, k-factor 0.0021