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. 2021 Feb 11;94(1120):20210043. doi: 10.1259/bjr.20210043

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© 2021 The Authors. Published by the British Institute of Radiology

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Figure 5. — Axial PET images demonstrating an ¹⁸F-NaF -avid 6 mm sclerotic lesion at body of D3 vertebrae with different reconstructions. (a) OSEM b) Q.Clear B400 c) Q.Clear B600. (d) Q.Clear B800 and d) Q.Clear B1000. The degree of uptake was shown to be higher using Q.Clear reconstruction and there is improvement background noise as B values increase. Overall IQ and lesion is better delineated is better with B400-B600. ¹⁸F-NaF, ¹⁸F sodium fluoride;BMI, body mass index; IQ, image quality; OSEM, ordered subsetexpectation maximization; PET, positron emission tomography.