Asian consortium on radiation dose of pediatric cardiac CT (ASCI-REDCARD)
| Autor: | Young Jin Kim, Suvipaporn Siripornpitak, Oktavia Lilyasari, Supika Kritsaneepaiboon, Peter K T Hui, Jing Du, Janice J. K. Ip, Hyun Woo Goo, Suzu Kanzaki |
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| Rok vydání: | 2016 |
| Předmět: |
Cardiac function curve
Heart Defects Congenital medicine.medical_specialty Asia Consensus Heart disease Adolescent Radiation Dosage Effective dose (radiation) 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Image reconstruction algorithm Medicine Humans Radiology Nuclear Medicine and imaging Child Neuroradiology Retrospective Studies business.industry Radiation dose Ultrasound Infant Newborn Infant Retrospective cohort study medicine.disease 030220 oncology & carcinogenesis Child Preschool Pediatrics Perinatology and Child Health Radiology business Nuclear medicine Tomography X-Ray Computed |
| Zdroj: | Pediatric radiology. 47(8) |
| ISSN: | 1432-1998 |
| Popis: | With incremental utilization of pediatric cardiac CT in congenital heart disease, it is imperative to define its current radiation dose levels in clinical practice in order to help imagers optimize CT protocols, particularly in Asia and other developing countries where CT physicists are not readily available. To evaluate current radiation dose levels and influencing factors in cardiac CT in children with congenital heart disease in Asia by conducting a retrospective multi-center, multi-vendor study. We included 1,043 pediatric cardiac CT examinations performed in 8 centers between January 2014 and December 2014 to evaluate congenital heart disease. In five weight groups, we calculated radiation dose metrics including volume CT dose index, size-specific dose estimate, dose–length product and effective dose. Age at CT exam, gender, tube voltage, scan mode, CT indication and image reconstruction algorithm were analyzed to learn whether they influenced CT radiation dose. Volume CT dose index, size-specific dose estimate, dose–length product and effective dose of pediatric cardiac CT showed variations in the range of 4.3–23.8 mGy, 4.9–17.6 mGy, 55.8–501.3 mGy∙cm and 1.5–3.2 mSv, respectively, within five weight groups. Gender, tube voltage, scan mode and cardiac function assessment significantly influenced CT radiation dose. This multi-center, multi-vendor study demonstrated variations in radiation dose metrics of pediatric cardiac CT reflecting current practice in Asia. Gender, tube voltage, scan mode and cardiac function assessment should be considered as essential radiation dose-influencing factors in developing optimal pediatric cardiac CT protocols. |
| Databáze: | OpenAIRE |
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