{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,15]],"date-time":"2025-10-15T17:43:35Z","timestamp":1760550215389},"reference-count":32,"publisher":"American Society of Clinical Oncology (ASCO)","issue":"14","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCO"],"published-print":{"date-parts":[[2000,7,14]]},"abstract":"<jats:p> PURPOSE: To calculate radiation doses of rhenium-186 (<jats:sup>186<\/jats:sup>Re) etidronate in painful bone metastases using quantitative bone single-photon emission computed tomography (SPECT) and to determine the threshold dose for predicting pain relief. We also wanted to determine whether technetium-99m (<jats:sup>99m<\/jats:sup>Tc) methylene diphosphonate (MDP) concentrations predict radiation doses of <jats:sup>186<\/jats:sup>Re etidronate in painful lesions. <\/jats:p><jats:p> MATERIALS AND METHODS: Forty-eight patients with breast and prostate cancer were evaluated. Patients received therapeutic doses of <jats:sup>186<\/jats:sup>Re etidronate. The area under the pain over time curve (AUPC) was measured for 8 weeks after treatment. Response was calculated as the percentage of change in AUPC. Quantitative bone SPECT (QBS)\u2013measured concentration of <jats:sup>186<\/jats:sup>Re etidronate was used for calculating radiation doses. Receiver operating characteristics curve analysis determined the radiation dose threshold that best separated responders from nonresponders. SPECT-measured concentration of <jats:sup>186<\/jats:sup>Re etidronate in the urinary bladder was correlated with its concentration in the voided urine. Concentration of <jats:sup>99m<\/jats:sup>Tc MDP was compared with radiation doses to painful metastases. <\/jats:p><jats:p> RESULTS: The radiation dose threshold was 2.10 Gy. For a decrease of 50% in the AUPC, the positive predictive value (PPV) of this value was 75% and the negative predictive value (NPV) was 88%. For a decrease in pain of 33%, the PPV was 84% and the NPV was 81%. In prostate cancer patients only, the PPV was 81% and the NPV was 92%. The correlation between in vivo\/in vitro measured urine concentration was 0.90. The correlation between <jats:sup>99m<\/jats:sup>Tc MDP concentration and radiation doses of <jats:sup>186<\/jats:sup>Re etidronate was 0.92. <\/jats:p><jats:p> CONCLUSION: QBS-measured radiation doses of <jats:sup>186<\/jats:sup>Re etidronate in painful metastases are a good predictor of pain relief. Bone SPECT using <jats:sup>99m<\/jats:sup>Tc MDP predicts radiation doses delivered by <jats:sup>186<\/jats:sup>Re etidronate. <\/jats:p>","DOI":"10.1200\/jco.2000.18.14.2747","type":"journal-article","created":{"date-parts":[[2017,2,24]],"date-time":"2017-02-24T06:50:00Z","timestamp":1487919000000},"page":"2747-2754","source":"Crossref","is-referenced-by-count":14,"title":["Quantitative Bone Single-Photon Emission Computed Tomography for Prediction of Pain Relief in Metastatic Bone Disease Treated With Rhenium-186 Etidronate"],"prefix":"10.1200","volume":"18","author":[{"given":"Ora","family":"Israel","sequence":"first","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zohar","family":"Keidar","sequence":"additional","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rafael","family":"Rubinov","sequence":"additional","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Galina","family":"Iosilevski","sequence":"additional","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alex","family":"Frenkel","sequence":"additional","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abraham","family":"Kuten","sequence":"additional","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. Rappaport School of Medicine, Technion-Israel Institute of Technology, Haifa, Israel."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lise","family":"Betman","sequence":"additional","affiliation":[{"name":"From the Departments of Nuclear MedicineOncology, and Neurology, Rambam Medical Center; Department of Oncology, Lady Davis Carmel Hospital; and B. 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