Recent Survey of Effective Doses of F-18 FDG Torso PET/CT in Korea and the Current Recommendations for CT Protocols of PET/CT
- Authors
- Chong, Ari; Park, Jung Mi; Pak, Kyoungjune; Kim, Yong-il; Kwon, Hyun Woo; Lee, Eun Seong; Nam, Ki Pyo; Lee, Ho-Young; Lee, Hong Jae; Yoo, Ik Dong; Eo, Jae Seon; Kim, Ji Young; Yoon, Joon-Kee; Kim, Kyeong Min; Kim, Seong Min; Kim, Tae-Sung
- Issue Date
- Oct-2020
- Publisher
- SPRINGER HEIDELBERG
- Keywords
- PET; CT; CT; Effective dose; F-18-FDG; Guidelines
- Citation
- NUCLEAR MEDICINE AND MOLECULAR IMAGING, v.54, no.5, pp.224 - 232
- Indexed
- SCOPUS
KCI
- Journal Title
- NUCLEAR MEDICINE AND MOLECULAR IMAGING
- Volume
- 54
- Number
- 5
- Start Page
- 224
- End Page
- 232
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/145058
- DOI
- 10.1007/s13139-020-00654-7
- ISSN
- 1869-3474
- Abstract
- Purpose
This study aimed to construct a database of the effective doses (ED) from F-18 fluorodeoxyglucose (FDG) torso positron emission tomography/computed tomography (PET/CT) in Korea to provide data that supports the reduction of the CT dose of PET/CT and optimization of PET/CT protocols in Korea.
Methods
We investigated data of ED and CT parameters of FDG PET/CT. The data were analyzed by body weight groups.
Results
A total of 31 hospitals participated in the survey (99 adults). The mean total EDs (± SD) were 8.77 ± 2.76, 10.93 ± 3.14, and 12.57 ± 3.79 mSv for the 55-, 70-, and 85-kg groups, respectively. The FDG EDs were 4.80 ± 0.98, 6.05 ± 1.15, and 6.89 ± 1.52 mSv, and the CT EDs were 4.00 ± 2.12, 4.88 ± 2.51, and 5.68 ± 2.89 mSv, respectively. Of the enrolled hospitals, 54.5% used ultra-low-dose CT protocols, and their CT ED was significantly lower than low-dose CT group in all groups (2.9 ± 1.0, 3.2 ± 1.1, and 3.3 ± 1.0 mSv vs. 6.6 ± 1.6, 7.2 ± 2.1, and 7.9 ± 2.2 mSv, all p < 0.001, respectively). In the ultra-low-dose CT group, the CT ED with the iterative reconstruction was significantly lower than that of CT without iterative reconstruction in the 55-kg group (2.4 ± 0.9 vs. 3.3 ± 0.9, p = 0.04).
Conclusions
These results and current recommendations can be helpful for optimizing PET/CT diagnostic reference level (DRL) and reducing unnecessary PET/CT radiation exposure.
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