Standardization of scan protocols for RT CT simulator from different vendors using quantitative image quality technique
The level of change in the IQ ratio was significant (>0.6) when using IMR. The IQ ratio change was relatively low to moderate when using either iDose in CTp (0.1-0.5) or SAFIRE in CT<sub>s</sub> (0.1-0.6). SAFIRE-2 in CT<sub>s</sub> showed a closer match to the reference body protocol when compared to iDose-3 in CT<sub>p</sub>. In the brain protocol, iDose-3 in CT<sub>p</sub> could be matched to the low to moderate level of SAFIRE in CT<sub>s</sub>. The AUC of d' was highest when using IMR in CT<sub>p</sub> with lower CTDI<sub>vol</sub>, and SAFIRE in CT<sub>s</sub> performed better than iDose in CT<sub>p</sub> CONCLUSION: It is possible to use target-based IQ metrics to evaluate the performance of the system and operations across various scanners in a phantom. This can serve as an initial reference to convert clinical scanned protocols from one CT simulation scanner to another.
Authors
- Seng Boh Lim (ORCID: https://orcid.org/0000-0002-4054-8789)
- Hsiang‐Chi Kuo (ORCID: https://orcid.org/0000-0003-0063-2473)
- Usman Mahmood (ORCID: https://orcid.org/0009-0001-4676-2591)
- Assen S. Kirov (ORCID: https://orcid.org/0000-0001-6521-3582)
- Laura Cerviño (ORCID: https://orcid.org/0000-0001-6479-6990)
- James Mechalakos (ORCID: https://orcid.org/0000-0001-9373-836X)
- Cesar Della Biancia
- Shih‐Chi Lin (ORCID: https://orcid.org/0009-0004-5180-070X)
- Trevin Trotman
Institutions
- Memorial Sloan Kettering Cancer Center (US)
Publication Details
- Journal
- Journal of Applied Clinical Medical Physics
- Published
- 2024-08-13
- DOI
- https://doi.org/10.1002/acm2.14484
- Citations
- 2
- Primary Topic
- Advanced X-ray and CT Imaging
- Type
- article
- Field-Weighted Citation Impact
- 0.37
Funders
- Memorial Sloan-Kettering Cancer Center