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CARE Right – Low kV

Clinical Examples: Scanning with the low kV

Discover the great impact of low kV imaging!
The following clinical cases are scanned with low kV and see its power on the reduction of radiation dose or the contrast media administration.

Collimation: 192 x 0.6 mmTube settings: 80 kV, 140 mAs
Scan time: 1 sDLP: 154.6 mGy cm
Scan length: 740 mmCTDIvol: 2.09 mGy
Rotation time: 0.25 sEff. dose: 2.32 mSv
Contrast media: 20 mL 

(Images: Medical Faculty Mannheim at Heidelberg University, Mannheim, Germany)

Collimation: 128 x 0.6 mmTube settings: 70 kV, 348 mAs
Scan time: 25.45 sDLP: 541 mGy cm
Scan length: 1227 mmCTDIvol: 4.35 mGy
Rotation time: 0.28 sEff. dose: 2.97 mSv

(Images: Peking University International Hospital, Beijing, P. R. China)

Collimation: 192 x 0.6 mmTube settings: 80 kV, 194 mAs
Scan time: 1.44 sDLP: 344 mGy cm
Scan length: 726.6 mmCTDIvol: 4.4 mGy
Rotation time: 0.25 sEff. dose: 5.0 mSv
Contrast media: 30 mL 

(Images: Medical Faculty Mannheim at Heidelberg University, Mannheim, Germany)

Diagnosis: A re-evaluation CTA using only 20 ml of contrast media confirmed a Stanford B aortic dissection, beginning behind the junction of the left subclavian artery and stretching to just below the diaphragm, with a new partially thrombotic occlusion of the false lumen.

Collimation: 192 x 0.6 mmTube settings: 80 kV, 140 mAs
Scan time: 0.91 sDLP: 154.6 mGy cm
Scan length: 673.6 mmCTDIvol: 2.09 mGy
Rotation time: 0.25 sEff. dose: 2.3 mSv

(Image: Medical Faculty Mannheim at Heidelberg University, Mannheim, Germany)

Collimation: 128 x 0.6 mmTube settings: 70 kV, 95 mAs
Scan time: 5 sDLP: 53 mGy cm
Scan length: 598 mmCTDIvol: 0.86 mGy
Rotation time: 0.28 sEff. dose: 0.8 mSv

(Images: Erasmus MC – University Medical Center Rotterdam, Rotterdam, the Netherlands)

Collimation: 128 x 0.6 mmTube settings: 70 kV, 29 mAs
Scan time: 0.91 sDLP: 7 mGy cm
Scan length: 175 mmCTDIvol: 0.26 mGy
Rotation time: 0.3 sEff. dose: 0.23 mSv

(Images: Erasmus MC – University Medical Center Rotterdam, Rotterdam, the Netherlands)

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