Head & Neck Clinical Gallery
Transforming CT
Aquilion ONE™ / GENESIS SP goes beyond the evolution of dynamic volume CT. Intensive clinically focused research and breakthrough technological developments have culminated in a CT system with industry-leading spatial resolution and reduced radiation dose requirements.
Brain Aneurysm Coiling, SEMAR
Aquilion ONE / GENESIS SP
53-year-old female underwent head endovascular treatment. A follow-up head CTA was performed. The high attenuation material used for treatment causes extensive streak artifact. SEMAR, Single Energy Metal Artifact Reduction was applied to the scan. 3D Volume Rendered and Multiplanar Reconstruction (MPR) demonstrate minimized artifact caused by the metallic implant. SEMAR provides better visualization of the soft tissue and vasculature surrounding it.
View Scan Parameters| Scan Mode | Volume |
| Collimation | 0.5 mm x 256 |
| kVp | 100 |
| mAs | 262 |
| Rotation Time | 0.75 s |
| Scan Range | 128.0 mm |
| Reconstruction | |
| Metal Artifact Reduction | SEMAR |
| CTDIvol | 33.1 mGy |
| DLP | 423.2 mGy·cm |
| Effective Dose* | 0.88 mSv |
*AAPM Report 96, k-factor 0.0021
Brain CTA Right MCA Aneurysm, SURESubtraction
Aquilion ONE / GENESIS SP
Volumetric CTA automatically processed with SURESubtraction demonstrates intracranial vessel dilatation.
View Scan Parameters| Non-Contrast | Contrast | |
| Scan Mode | Volume | Volume |
| Collimation | 0.5 mm x 320 | 0.5 mm x 320 |
| kVp | 100 | 100 |
| mAs | 90 | 285 |
| Rotation Time | 0.75 s | 0.75 s |
| Scan Range | 160.0 mm | 160.0 mm |
| Reconstruction | ||
| CTDlvol | 6.5 mGy | 20.7 mGy |
| DLP | 104.8 mGy•cm | 331.8 mGy•cm |
| Effective Dose* | 0.22 mSv | 0.69 mSv |
*AAPM Report 96, k-factor 0.0021
Brain Perfusion Left MCA Occlusion
Aquilion ONE / GENESIS SP
51-year-old female presented with neurological complaints. A dynamic 4D CTA DSA and whole brain perfusion was performed. The 4D CTA shows a blood flow interruption of the left middle cerebral artery (MCA). MTT and Delay Maps show abnormality. The TimeMIP demonstrates that there is collateral filling over time which is confirmed by CBF and CBV Maps.
View Scan Parameters| Scan Mode | Dynamic Volume |
| Collimation | 0.5 mm x 320 |
| kVp | 80 |
| mAs | 232; 112; 225 |
| Rotation Time | 0.75 s |
| Scan Range | 160.0 mm |
| Reconstruction | |
| CTDIvol | 210.6 mGy |
| DLP | 3273.0 mGy·cm |
| Effective Dose* | 6.8 mSv |
*AAPM Report 96, k-factor 0.0021
