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Hypervascular liver lesion

Aquilion ONE / PRISM Edition

This patient presented to the hospital for a pre-transplant assessment. A spectral arterial scan was performed with an iodine contrast injection of 100ml of 270 mgI/ml, a contrast reduction of 32.5% relative to the site's single energy protocol.

Reducing the contrast load to the patient is made possible by the reliance on low keV energy to enhance the iodine conspicuity. The hypervascular lesion can be better defined on the low keV image and further visualized on the iodine map and Effective Z image.

View Scan Parameters

Scan Mode Spectral Helical
Collimation 0.5 mm x 80
kVp 80/135
mAs SUREExposure
Rotation Time 1 s
CTDIvol 12.6 mGy
DLP 937.6 mGy-cm
Effective Dose 14 mSv
k-factor 0.015 (AAPM Report 96)
Aquilion ONE / PRISM Edition Hypervascular liver lesion
Aquilion ONE / PRISM Edition Hypervascular liver lesion
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Kidney tumor

Aquilion ONE / PRISM Edition

An elderly patient presented to the hospital for an assessment of a right renal tumor before a possible partial nephrectomy. A spectral CT scan was performed. Spectral DLR using both qualitative and quantitative methods can confidently differentiate the enhancing lesion from the non-enhancing lesion. The blue ROI is placed in the enhancing lesion with an iodine concentration of 2.50 mg/ml where curve shows increased enhancement at low keV. The yellow ROI is placed in the non-enhancing lesion and the spectral curve shows little to no change in attenuation values across the keV spectrum.

View Scan Parameters

Scan Mode Spectral Helical
Collimation 0.5 mm x 80
kVp 80/135
mAs SUREExposure
Rotation Time 1 s
CTDIvol 12.6mGy
DLP 642.50 mGy-cm
Effective Dose 9.6 mSv
k-factor 0.015 (AAPM Report 96)
Aquilion ONE / PRISM Edition Kidney tumor
Aquilion ONE / PRISM Edition Kidney tumor
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Aorta CTA with reduced contrast dose

Aquilion ONE / PRISM Edition

An elderly patient presented to the hospital for a routine follow-up CT after placement of an endoluminal stent graft. The patient has a medical history of decreased glomerular filtration rate (GFR). To minimize the amount of iodinated contrast administered a spectral CT scan was performed. Utilizing the low keV range of spectral energy to increase iodine conspicuity allowed a 32.5% reduction of iodine load compared to the single energy equivalent.

View Scan Parameters

Scan Mode Spectral Helical
Collimation 0.5 mm x 80
kVp 80/135
mAs SUREExposure
Rotation Time 1 s
CTDIvol 12.6 mGy
DLP 812.1 mGy-cm
Effective Dose 12.18 mSv
k-factor 0.015 (AAPM Report 96)
Aquilion ONE / PRISM Edition Aorta CTA with reduced contrast dose
Aquilion ONE / PRISM Edition Aorta CTA with reduced contrast dose
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Spectral with metal artifact reduction

Aquilion ONE / PRISM Edition

Deep Learning Spectral CT can combine metal artifact reduction with spectral energy. Metal artifact reduction with high keV imaging is especially useful for reducing artifacts from small complex metal structures in the body for better soft tissue evaluation.

View Scan Parameters

Scan Mode Spectral Helical
Collimation 0.5 mm x 80
kVp 80/135
mAs SUREExposure
Rotation Time 1s
CTDIvol 12.6 mGy
DLP 1058 mGy-cm
Effective Dose 15.8 mSv
k-factor 0.015 (AAPM Report 96)
Aquilion ONE / PRISM Edition Spectral with metal artifact reduction
Aquilion ONE / PRISM Edition Spectral with metal artifact reduction
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Kidney Stone Analysis

Aquilion ONE / PRISM Edition

Deep Learning volumetric Spectral CT enables a fast, quantitative assessment to evaluate the composition of renal stones.

The composition of kidney stones is represented both graphically and as color overlay on 2D images using Vitrea Advanced Visualization.

View Scan Parameters

Scan Mode Spectral Helical
Collimation 0.5 mm x 280
kVp 80/135
mAs 245
Rotation Time 0.5 s
Scan Range 140.0 mm
CTDIvol 10.3 mGy
DLP 130.3 mGy·cm
Effective Dose 1.95 mSv
k-factor 0.015 (AAPM Report 96)
Aquilion ONE / PRISM Edition Kidney Stone Analysis
Aquilion ONE / PRISM Edition Kidney Stone Analysis
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