|
1
|
Rodgers S, Atkinson J, Cryer D, Storm C, Nezich R, Ebert MA, Rowshanfarzad P. Construction and validation of an infant chest phantom for paediatric computed tomography. Phys Eng Sci Med 2024; 47:491-501. [PMID: 38315414 PMCID: PMC11166826 DOI: 10.1007/s13246-023-01379-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/21/2023] [Indexed: 02/07/2024]
Abstract
Paediatric imaging protocols should be carefully optimised to maintain the desired image quality while minimising the delivered patient dose. A paediatric chest phantom was designed, constructed and evaluated to optimise chest CT examinations for infants. The phantom was designed to enable dosimetry and image quality measurements within the anthropomorphic structure. It was constructed using tissue equivalent materials to mimic thoracic structures of infants, aged 0-6 months. The phantom materials were validated across a range of diagnostic tube voltages with resulting CT numbers found equivalent to paediatric tissues observed via a survey of clinical paediatric chest studies. The phantom has been successfully used to measure radiation dose and evaluate various image quality parameters for paediatric specific protocols.
Collapse
Affiliation(s)
- Seonaid Rodgers
- Department of Medical Technology and Physics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia.
- School of Physics, Mathematics and Computing, University of Western Australia, Crawley, WA, Australia.
| | - Janette Atkinson
- Department of Medical Technology and Physics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia
| | - David Cryer
- Department of Medical Technology and Physics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia
| | - Cameron Storm
- Department of Medical Technology and Physics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia
| | - Rikki Nezich
- Department of Medical Technology and Physics, Sir Charles Gairdner Hospital, Hospital Avenue, Nedlands, WA, 6009, Australia
| | - Martin A Ebert
- School of Physics, Mathematics and Computing, University of Western Australia, Crawley, WA, Australia
- Department of Radiation Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
- Centre for Advanced Technologies in Cancer Research (CATCR), Perth, WA, Australia
| | - Pejman Rowshanfarzad
- School of Physics, Mathematics and Computing, University of Western Australia, Crawley, WA, Australia
- Centre for Advanced Technologies in Cancer Research (CATCR), Perth, WA, Australia
| |
Collapse
|