Iterative reconstruction in single-source dual-energy CT angiography: feasibility of low and ultra-low volume contrast medium protocols Article Swipe
Ping Hou
,
Xiangnan Feng
,
Jie Liu
,
Yue Zhou
,
Yaojun Jiang
,
Xiaochen Jiang
,
Jianbo Gao
·
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1259/bjr.20160506
YOU?
·
· 2017
· Open Access
·
· DOI: https://doi.org/10.1259/bjr.20160506
Objective: To evaluate the feasibility of using contrast medium (CM) of low and ultra-low volumes and injection rates in aortic CT angiography (CTA) through the joint application of single-source dual-energy CT (ssDECT) and adaptive statistical iterative reconstruction (ASIR). Methods: 120 patients with known or suspected aortic dissection underwent aortic CTA and were equally divided into 3 groups. Conventional 120-kVp scan with a CM volume of 70 ml and an injection rate of 5 ml s−1 was performed on Group A. Groups B and C underwent ssDECT scan with CM volumes of 0.6 and 0.4 ml kg−1, respectively. 40% and 50% ASIR algorithms were applied for Groups B and C, respectively. A five-point grading scheme was utilized to subjectively evaluate the image quality, and the CT value and contrast-to-noise ratio were recorded as objective measures. The radiation dose was also evaluated. Results: Groups B and C had equivalent subjective scores and CT values as Group A, whereas they had higher or equivalent contrast-to-noise ratios. Group B had 40.1% and 30% reductions on CM volume and injection rate, respectively, than Group A. Group C further resulted in 19.2% and 22% lesser CM volume and injection rate than Group B. The average effective radiation doses for the study groups were 22.5–24.5% lower than the control group. Conclusion: With the aid of ASIR and ssDECT for aortic CTA, it is feasible to adopt low and ultra-low CM volumes and injection rates while obtaining good quality images. Advances in knowledge: Low and ultra-low CM volumes and injection rates are feasible in CTA through the joint application of ssDECT and ASIR.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1259/bjr.20160506
- OA Status
- green
- Cited By
- 14
- References
- 50
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W2619117685
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W2619117685Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.1259/bjr.20160506Digital Object Identifier
- Title
-
Iterative reconstruction in single-source dual-energy CT angiography: feasibility of low and ultra-low volume contrast medium protocolsWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2017Year of publication
- Publication date
-
2017-05-30Full publication date if available
- Authors
-
Ping Hou, Xiangnan Feng, Jie Liu, Yue Zhou, Yaojun Jiang, Xiaochen Jiang, Jianbo GaoList of authors in order
- Landing page
-
https://doi.org/10.1259/bjr.20160506Publisher landing page
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://www.ncbi.nlm.nih.gov/pmc/articles/5594978Direct OA link when available
- Concepts
-
Medicine, Nuclear medicine, Angiography, Image quality, Contrast medium, Dual energy, Radiology, Internal medicine, Image (mathematics), Bone mineral, Computer science, Osteoporosis, Artificial intelligenceTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
14Total citation count in OpenAlex
- Citations by year (recent)
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2024: 3, 2023: 1, 2022: 2, 2021: 2, 2020: 2Per-year citation counts (last 5 years)
- References (count)
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50Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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