Systematic radiation dose optimization of abdominal dual-energy CT on a second-generation dual-source CT scanner: assessment of the accuracy of iodine uptake measurement and image quality in an in vitro and in vivo investigations

2017 ◽  
Vol 42 (10) ◽  
pp. 2562-2570 ◽  
Author(s):  
Sebastian T. Schindera ◽  
Caroline Zaehringer ◽  
Luigia D’Errico ◽  
Fides Schwartz ◽  
Maka Kekelidze ◽  
...  
Keyword(s):  
Radiation Dose ◽  
Dual Energy ◽  
Dose Optimization ◽  
Dual Energy Ct ◽  
Dual Source Ct ◽  
Ct Scanner ◽  
Dual Source ◽  
Uptake Measurement

Single- and dual-energy CT pulmonary angiography using second- and third-generation dual-source CT systems: comparison of radiation dose and image quality

2019 ◽  
Vol 29 (9) ◽  
pp. 4603-4612 ◽  
Author(s):  
Lukas Lenga ◽  
Franziska Trapp ◽  
Moritz H. Albrecht ◽  
Julian L. Wichmann ◽  
Addison A. Johnson ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Pulmonary Angiography ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Third Generation ◽  
Dual Source Ct ◽  
Ct Pulmonary Angiography ◽  
Dual Source

Comparison of image quality and radiation dose of different pulmonary CTA protocols on a 128-slice CT: high-pitch dual source CT, dual energy CT and conventional spiral CT

2011 ◽  
Vol 22 (2) ◽  
pp. 279-286 ◽  
Author(s):  
Tobias De Zordo ◽  
Klemens von Lutterotti ◽  
Christian Dejaco ◽  
Peter F. Soegner ◽  
Renate Frank ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Spiral Ct ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Dual Source Ct ◽  
High Pitch ◽  
Dual Source

Single- and dual-energy CT of the abdomen: comparison of radiation dose and image quality of 2nd and 3rd generation dual-source CT

2016 ◽  
Vol 27 (2) ◽  
pp. 642-650 ◽  
Author(s):  
Julian L. Wichmann ◽  
Andrew D. Hardie ◽  
U. Joseph Schoepf ◽  
Lloyd M. Felmly ◽  
Jonathan D. Perry ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Dual Source Ct ◽  
Dual Source

In Vivo Differentiation of Uric Acid Versus Non-Uric Acid Urinary Calculi With Third-Generation Dual-Source Dual-Energy CT at Reduced Radiation Dose

2018 ◽  
Vol 210 (2) ◽  
pp. 358-363 ◽  
Author(s):  
Axelle Franken ◽  
Pierre Alain Gevenois ◽  
Alain Van Muylem ◽  
Nigel Howarth ◽  
Caroline Keyzer
Keyword(s):  
Uric Acid ◽  
Radiation Dose ◽  
Urinary Calculi ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Third Generation ◽  
Acid Versus ◽  
Dual Source ◽  
In Vivo Differentiation

scholarly journals Diagnosis of Pulmonary Artery Embolism: Comparison of Single-Source CT and 3rd Generation Dual-Source CT using a Dual-Energy Protocol Regarding Image Quality and Radiation Dose

2017 ◽  
Vol 189 (06) ◽  
pp. 527-536 ◽  
Author(s):  
Bernhard Petritsch ◽  
Aleksander Kosmala ◽  
Tobias Gassenmaier ◽  
Andreas Weng ◽  
Simon Veldhoen ◽  
...  
Keyword(s):  
Image Quality ◽  
Radiation Dose ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Dual Source Ct ◽  
Single Source ◽  
Subjective Image Quality ◽  
Artery Embolism ◽  
Dual Source ◽  
Noise Ratio

Purpose To compare radiation dose, subjective and objective image quality of 3 rd generation dual-source CT (DSCT) and dual-energy CT (DECT) with conventional 64-slice single-source CT (SSCT) for pulmonary CTA. Materials and Methods 180 pulmonary CTA studies were performed in three patient cohorts of 60 patients each. Group 1: conventional SSCT 120 kV (ref.); group 2: single-energy DSCT 100 kV (ref.); group 3: DECT 90/Sn150 kV. CTDIvol, DLP, effective radiation dose were reported, and CT attenuation (HU) was measured on three central and peripheral levels. The signal-to-noise-ratio (SNR) and contrast-to-noise-ratio (CNR) were calculated. Two readers assessed subjective image quality according to a five-point scale. Results Mean CTDIvol and DLP were significantly lower in the dual-energy group compared to the SSCT group (p < 0.001 [CTDIvol]; p < 0.001 [DLP]) and the DSCT group (p = 0.003 [CTDIvol]; p = 0.003 [DLP]), respectively. The effective dose in the DECT group was 2.79 ± 0.95 mSv and significantly smaller than in the SSCT group (4.60 ± 1.68 mSv, p < 0.001) and the DSCT group (4.24 ± 2.69 mSv, p = 0.003). The SNR and CNR were significantly higher in the DSCT group (p < 0.001). Subjective image quality did not differ significantly among the three protocols and was rated good to excellent in 75 % (135/180) of cases with an inter-observer agreement of 80 %. Conclusion Dual-energy pulmonary CTA protocols of 3 rd generation dual-source scanners allow for significant reduction of radiation dose while providing excellent image quality and potential additional information by means of perfusion maps. Key Points: Citation Format

scholarly journals Pulmonary Embolism Detection with Dual-Energy CT: Experimental Study of Dual-Source CT in Rabbits

Radiology ◽  
2009 ◽  
Vol 252 (1) ◽  
pp. 61-70 ◽  
Author(s):  
Long-Jiang Zhang ◽  
Yan-E Zhao ◽  
Sheng-Yong Wu ◽  
Benjamin M. Yeh ◽  
Chang-Sheng Zhou ◽  
...  
Keyword(s):  
Experimental Study ◽  
Pulmonary Embolism ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Dual Source Ct ◽  
Dual Source

In Vivo Comparison of Radiation Exposure in Third Generation versus Second Generation Dual-Source Dual-Energy CT for Imaging Urinary Calculi

2021 ◽  
Author(s):  
Jonathan P Lam ◽  
Lauren F Alexander ◽  
William E Haley ◽  
David O Hodge ◽  
James M Kofler ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Second Generation ◽  
Urinary Calculi ◽  
Dual Energy ◽  
Dual Energy Ct ◽  
Third Generation ◽  
Dual Source
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