Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus)
Abstract Background Atherosclerosis is a common cardiovascular disease in parrots but the antemortem diagnosis is challenging. In human medicine, computed tomography angiography (CTA) has been used widely for the diagnosis of atherosclerosis. By adjusting the injection rate and total dose of contras...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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BMC
2022-12-01
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| Series: | BMC Veterinary Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12917-022-03524-w |
| _version_ | 1811179186129207296 |
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| author | Wen-Lin Wang Fang-Lun Chang Pin-Huan Yu |
| author_facet | Wen-Lin Wang Fang-Lun Chang Pin-Huan Yu |
| author_sort | Wen-Lin Wang |
| collection | DOAJ |
| description | Abstract Background Atherosclerosis is a common cardiovascular disease in parrots but the antemortem diagnosis is challenging. In human medicine, computed tomography angiography (CTA) has been used widely for the diagnosis of atherosclerosis. By adjusting the injection rate and total dose of contrast medium, the image quality can be improved. To test the effects of different injection conditions on the image quality of major arteries, 10 African grey parrots (Psittacus erithacus) were used. Three injection rates (0.3, 0.4, 0.5 mL/s) and three doses (740, 370, 222 mg of iodine/bird) were tested while the other variables of the studies were fixed. Result A higher injection dose led to a significantly higher attenuation, image noise and diameter, with a lower signal-to-noise ratio and contrast-to-noise ratio of the six major arteries. The 370 mg of iodine/bird group showed significantly better subjective image quality. Furthermore, with increasing injection rates, the prevalence of heterogeneity decreased. However, we found an increased risk of injection failure for the 0.5 mL/s groups. Conclusion We recommend a combination of 370 mg of iodine/bird with 0.4 mL/s for clinical use to achieve better image quality for CTA. |
| first_indexed | 2024-04-11T06:30:40Z |
| format | Article |
| id | doaj.art-79fb4111b1bd4503bbf01a40e1fb2823 |
| institution | Directory Open Access Journal |
| issn | 1746-6148 |
| language | English |
| last_indexed | 2024-04-11T06:30:40Z |
| publishDate | 2022-12-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Veterinary Research |
| spelling | doaj.art-79fb4111b1bd4503bbf01a40e1fb28232022-12-22T04:40:05ZengBMCBMC Veterinary Research1746-61482022-12-0118111310.1186/s12917-022-03524-wEffect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus)Wen-Lin Wang0Fang-Lun Chang1Pin-Huan Yu2Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan UniversityNational Taiwan University Veterinary HospitalInstitute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan UniversityAbstract Background Atherosclerosis is a common cardiovascular disease in parrots but the antemortem diagnosis is challenging. In human medicine, computed tomography angiography (CTA) has been used widely for the diagnosis of atherosclerosis. By adjusting the injection rate and total dose of contrast medium, the image quality can be improved. To test the effects of different injection conditions on the image quality of major arteries, 10 African grey parrots (Psittacus erithacus) were used. Three injection rates (0.3, 0.4, 0.5 mL/s) and three doses (740, 370, 222 mg of iodine/bird) were tested while the other variables of the studies were fixed. Result A higher injection dose led to a significantly higher attenuation, image noise and diameter, with a lower signal-to-noise ratio and contrast-to-noise ratio of the six major arteries. The 370 mg of iodine/bird group showed significantly better subjective image quality. Furthermore, with increasing injection rates, the prevalence of heterogeneity decreased. However, we found an increased risk of injection failure for the 0.5 mL/s groups. Conclusion We recommend a combination of 370 mg of iodine/bird with 0.4 mL/s for clinical use to achieve better image quality for CTA.https://doi.org/10.1186/s12917-022-03524-wAfrican grey parrotsAtherosclerosisComputed tomography angiographyContrast mediumImage quality |
| spellingShingle | Wen-Lin Wang Fang-Lun Chang Pin-Huan Yu Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus) BMC Veterinary Research African grey parrots Atherosclerosis Computed tomography angiography Contrast medium Image quality |
| title | Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus) |
| title_full | Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus) |
| title_fullStr | Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus) |
| title_full_unstemmed | Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus) |
| title_short | Effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in African grey parrots (Psittacus erithacus) |
| title_sort | effect of different injection rates and doses of contrast medium on the image quality of computed tomographic angiography in african grey parrots psittacus erithacus |
| topic | African grey parrots Atherosclerosis Computed tomography angiography Contrast medium Image quality |
| url | https://doi.org/10.1186/s12917-022-03524-w |
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