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Correlation of 18F-FDG Avid Volumes on Pre–Radiation Therapy and Post–Radiation Therapy FDG PET Scans in Recurrent Lung Cancer  Nadya Shusharina, PhD,

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Presentation on theme: "Correlation of 18F-FDG Avid Volumes on Pre–Radiation Therapy and Post–Radiation Therapy FDG PET Scans in Recurrent Lung Cancer  Nadya Shusharina, PhD,"— Presentation transcript:

1 Correlation of 18F-FDG Avid Volumes on Pre–Radiation Therapy and Post–Radiation Therapy FDG PET Scans in Recurrent Lung Cancer  Nadya Shusharina, PhD, Joseph Cho, BS, Gregory C. Sharp, PhD, Noah C. Choi, MD  International Journal of Radiation Oncology • Biology • Physics  Volume 89, Issue 1, Pages (May 2014) DOI: /j.ijrobp Copyright © 2014 Elsevier Inc. Terms and Conditions

2 Fig. 1 Design of the study. Schematically shown are pretherapy scan (S1) with 50% of maximum standard uptake value of 2-deoxy-2-[18F]-fluoro-D-glucose (FDG) uptake threshold; 10-day posttherapy (S2), 3-month posttherapy (S3), and 6-month posttherapy (S4) scans with 80% of maximum standard uptake value of FDG uptake threshold. All posttherapy scans were rigidly aligned with the pretherapy scan. Overlap of FDG uptake at S1 and each of the posttherapy uptakes within thresholds was calculated. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © 2014 Elsevier Inc. Terms and Conditions

3 Fig. 2 Representative images of a patient with pretherapy (S1) and 10-day (S2) and 3-month (S3) posttherapy 2-deoxy-2-[18F]-fluoro-D-glucose positron emission tomography computed tomography (18F-FDG PET-CT). Green line indicates gross tumor volume outlined on pretherapy CT. Red lines indicate 50% of maximum standard uptake value threshold of FDG uptake on pretherapy PET (S1) and 80% of maximum standard uptake value threshold of FDG uptake on posttherapy PETl (S2,S3). A color version of this figure is available at International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © 2014 Elsevier Inc. Terms and Conditions

4 Fig. 3 Examples of heterogeneous 2-deoxy-2-[18F]-fluoro-D-glucose (FDG) uptake distribution in 4 different tumors. Green contour indicates gross tumor volume outlined on pretherapy computed tomography. Red contour indicates 50% of maximum standard uptake value threshold of FDG uptake on pretherapy positron emission tomography. A color version of this figure is available at International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © 2014 Elsevier Inc. Terms and Conditions

5 Fig. 4 Overlap fractions of the pretherapy (S1) with 3 posttherapy (S2, S3, S4) 2-deoxy-2-[18F]-fluoro-D-glucose uptakes calculated for 17 patients. Data are expressed as means ± 95% confidence intervals. International Journal of Radiation Oncology • Biology • Physics  , DOI: ( /j.ijrobp ) Copyright © 2014 Elsevier Inc. Terms and Conditions

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