Invalidity of SUV Measurements of Lesions in Close Proximity to Hot Sources due to “Shine-Through” Effect on FDG PET-CT Interpretation

<table>Transaxial FDG PET-CT images of the pelvis show no abnormal uptake in the endocervix of a woman status after chemoradiation for cervical cancer. However, measured <svg height="15.65" id="M14" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 57.512501 15.65" width="57.512501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> is 12 in the endocervix (arrow B). Urine <svg height="15.65" id="M15" style="vertical-align:-3.3907pt" version="1.1" viewbox="0 0 57.512501 15.65" width="57.512501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg> in the bladder is 20 (arrow A). </table>

Radiology Research and Practice

fig2

Figure 2

Figure 2: Invalidity of SUV Measurements of Lesions in Close Proximity to Hot Sources due to “Shine-Through” Effect on FDG PET-CT Interpretation 