In:
Journal of Computer Assisted Tomography, Ovid Technologies (Wolters Kluwer Health), Vol. 45, No. 6 ( 2021-11), p. 888-893
Kurzfassung:
To compare image quality and radiation dose of split-filter TwinBeam dual-energy (SF-TBDE) with those of single-energy images (SECT) in the contrast-enhanced chest computed tomography (CT). Methods Two hundred patients who underwent SF-TBDE (n = 100) and SECT (n = 100) contrast-enhanced chest scanning were retrospectively analyzed. The contrast-to-noise ratio (CNR) and figure of merit (FOM)-CNR of 5 structures (lung, aorta, pulmonary artery, thyroid, and erector spinae) were calculated and subjectively evaluated by 2 independent radiologists. Radiation dose was compared using volume CT dose index and size-specific dose estimate. Results The CNR and FOM-CNR of lung and erector spinae in SF-TBDE were higher than those of SECT ( P 〈 0.001). The differences in the subjective image quality between the 2 groups were not significant ( P = 0.244). Volume CT dose index and size-specific dose estimate of SF-TBDE were lower than those of SECT (6.60 ± 1.56 vs 7.81 ± 3.02 mGy, P = 0.001; 9.25 ± 1.60 vs. 10.55 ± 3.54; P = 0.001). Conclusions The SF-TBDE CT can provide similar image quality at a lower radiation dose compared with SECT.
Materialart:
Online-Ressource
ISSN:
1532-3145
,
0363-8715
DOI:
10.1097/RCT.0000000000001220
Sprache:
Englisch
Verlag:
Ovid Technologies (Wolters Kluwer Health)
Publikationsdatum:
2021
ZDB Id:
2039772-0
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