Abstract
Purpose
Single-photon emission computed tomography/computed tomography (SPECT/CT) is an advanced hybrid nuclear medicine technology that generates both functional and anatomical images in a single study. As utilization of SPECT/CT in Korea has been increasing, the purpose of this study was to survey its application of cardiac and skeletal SPECT/CT imaging for protocol optimization.
Methods
We surveyed CT protocols established for cardiac and skeletal SPECT/CT. We searched the guidelines for the CT protocols for SPECT/CT and reviewed the literature recently published.
Results
Among 36 hybrid SPECT scanners equipped with four or more multi-channel detector CTs (MDCTs), 18 scanners were used to perform cardiac studies at both very low current CT (30–80 mA; 11.1%) and ultra-low current CT (13–30 mA; 88.9%). Among the 33 canners, very low current (≤ 80 mA) CT or low current CT (80–130 mA) was used in 23.5%, and 41.8% for spine disorders, and in 36.4% or 30.3% for foot/ankle disorders, respectively. In the CT reconstructions, slice thickness of 5 mm for cardiac studies was most commonly used (94.4%); thinner slices (0.6–1.0 mm) for spine and foot/ankle studies were used in 24.2% and 45.5%, respectively. We also reviewed the international guidelines.
Conclusions
The results and current recommendations will be helpful for optimizing CT protocols for SPECT/CT. Optimization of SPECT/CT protocols will be required for generating the proper strategy for the specific lesions and clinical purpose.
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Acknowledgments
This study was performed as one of the 2018 Quality Control Committee activities of the Korean Society of Nuclear Medicine (KSNM) with cooperation of the Korean Society of Nuclear Medicine Technology (KSNMT). We give special thanks to the members of the KSNMT for participating in this survey, Hong Jae Lee from Seoul National University Hospital, Keun Bae Choe from Hanyang University Hospital, Byung Ho Ahn from Samsung Medical Center, and Soo Young Park from the Catholic University of Korea, Seoul St. Mary’s Hospital.
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All the authors contributed to the study design, data collection, and discussion of the result. Data analysis and the first draft were performed by Eun Jung Lee, Ji Young Kim, and Jung Mi Park. Jung Mi Park, Joon-Kee Yoon, and Seong Min Kim commented on revision of the manuscript. All the authors read and approved the first and final manuscript.
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Eun Jeong Lee, Ji Young Kim, Jung Mi Park, Bong-Il Song, Hongyoon Choi, Hye-kyeong Shim, Hye Lim Park, Ho-Young Lee, Kyung Jae Lee, Joon-Kee Yoon, Seongho Seo, Seong Min Kim, Soo Bin Park, Young Seok Cho, Seong Hoon Kim declare that they have no conflict of interest.
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Lee, E.J., Kim, J.Y., Park, J.M. et al. Computed Tomography (CT) Protocols Associated with Cardiac and Bone Single-Photon Emission Computed Tomography/CT (SPECT/CT) in Korea. Nucl Med Mol Imaging 54, 139–146 (2020). https://doi.org/10.1007/s13139-020-00644-9
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DOI: https://doi.org/10.1007/s13139-020-00644-9