Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses
Rationale and objectives: To evaluate the impact of low dose-low contrast medium injection protocol on radiation dose and image quality of one-stop dual source high pitch integrated coronary -carotid -cerebral- aortic CTA. Methods: A total of 211 non-obese patients, consisting of 44 females with an...
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Elsevier
2025-06-01
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| Series: | European Journal of Radiology Open |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352047725000048 |
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| author | Meng Wang Chao Zheng Lin Yang Juan Su Bo Wang JieXin Sheng |
| author_facet | Meng Wang Chao Zheng Lin Yang Juan Su Bo Wang JieXin Sheng |
| author_sort | Meng Wang |
| collection | DOAJ |
| description | Rationale and objectives: To evaluate the impact of low dose-low contrast medium injection protocol on radiation dose and image quality of one-stop dual source high pitch integrated coronary -carotid -cerebral- aortic CTA. Methods: A total of 211 non-obese patients, consisting of 44 females with an average age of 59 years, were split into two groups: low dose group (LD group n = 136) and routine dose group (RD group n = 75). Noise, attenuation, signal to noise ratio (SNR), and contrast to noise ratio (CNR) were compared between the groups by setting region of interest (ROI) in target vessels to evaluate objective image quality. Two radiologists assessed subjective image quality using the 5-point scale. volumetric CT dose index (CTDIvol), dose length production (DLP), and effective radiation dose (ED) were compared, while contrast medium (CM) dose was assessed by CM volume and iodine uptake (IU). Results: Both radiation and CM dose were significantly reduced in the LD group compared with the RD group, DLP and ED were reduced by 51 %, and CM volume and IU were reduced by 13 % (all p < 0.05). Attenuation and noise were higher, while SNR and CNR were close to or slightly higher in the LD group compared with the RD group. The LD group had higher subjective image quality scores while all scores in the two groups satisfied the diagnostic requirements. Conclusion: Low-kV, low-CM one-stop dual-source high-pitch integrated coronary-carotid-cerebral-aortic CTA can ensure image quality while significantly reducing the doses of contrast medium and radiation |
| format | Article |
| id | doaj-art-62fbe391cda345888627490819dbccd5 |
| institution | Kabale University |
| issn | 2352-0477 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | European Journal of Radiology Open |
| spelling | doaj-art-62fbe391cda345888627490819dbccd52025-01-30T05:14:22ZengElsevierEuropean Journal of Radiology Open2352-04772025-06-0114100637Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium dosesMeng Wang0Chao Zheng1Lin Yang2Juan Su3Bo Wang4JieXin Sheng5Department of Radiology, Hanzhong Central Hospital, Hanzhong City, Shannxi Province, ChinaDepartment of Radiology, Hanzhong Central Hospital, Hanzhong City, Shannxi Province, ChinaDepartment of Radiology, Hanzhong Central Hospital, Hanzhong City, Shannxi Province, ChinaDepartment of Radiology, Hanzhong Central Hospital, Hanzhong City, Shannxi Province, ChinaDepartment of Radiology, Hanzhong Central Hospital, Hanzhong City, Shannxi Province, ChinaCorrespondence to: Hanzhong Central Hospital, 22 Kang Fu Road, Hanzhong City, Shannxi Province 723000, China.; Department of Radiology, Hanzhong Central Hospital, Hanzhong City, Shannxi Province, ChinaRationale and objectives: To evaluate the impact of low dose-low contrast medium injection protocol on radiation dose and image quality of one-stop dual source high pitch integrated coronary -carotid -cerebral- aortic CTA. Methods: A total of 211 non-obese patients, consisting of 44 females with an average age of 59 years, were split into two groups: low dose group (LD group n = 136) and routine dose group (RD group n = 75). Noise, attenuation, signal to noise ratio (SNR), and contrast to noise ratio (CNR) were compared between the groups by setting region of interest (ROI) in target vessels to evaluate objective image quality. Two radiologists assessed subjective image quality using the 5-point scale. volumetric CT dose index (CTDIvol), dose length production (DLP), and effective radiation dose (ED) were compared, while contrast medium (CM) dose was assessed by CM volume and iodine uptake (IU). Results: Both radiation and CM dose were significantly reduced in the LD group compared with the RD group, DLP and ED were reduced by 51 %, and CM volume and IU were reduced by 13 % (all p < 0.05). Attenuation and noise were higher, while SNR and CNR were close to or slightly higher in the LD group compared with the RD group. The LD group had higher subjective image quality scores while all scores in the two groups satisfied the diagnostic requirements. Conclusion: Low-kV, low-CM one-stop dual-source high-pitch integrated coronary-carotid-cerebral-aortic CTA can ensure image quality while significantly reducing the doses of contrast medium and radiationhttp://www.sciencedirect.com/science/article/pii/S2352047725000048Dual-source CTHigh pitchOne-stopCT angiographyLow dose |
| spellingShingle | Meng Wang Chao Zheng Lin Yang Juan Su Bo Wang JieXin Sheng Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses European Journal of Radiology Open Dual-source CT High pitch One-stop CT angiography Low dose |
| title | Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses |
| title_full | Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses |
| title_fullStr | Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses |
| title_full_unstemmed | Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses |
| title_short | Low KV-low contrast medium dose one-stop dual source CT high pitch integrated coronary-carotid-cerebral-aortic CTA improves image quality and reduces both radiation and contrast medium doses |
| title_sort | low kv low contrast medium dose one stop dual source ct high pitch integrated coronary carotid cerebral aortic cta improves image quality and reduces both radiation and contrast medium doses |
| topic | Dual-source CT High pitch One-stop CT angiography Low dose |
| url | http://www.sciencedirect.com/science/article/pii/S2352047725000048 |
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