Comparison of 18 F-sodium fluoride uptake in the whole bone, pelvis, and femoral neck of multiple myeloma patients befor
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ORIGINAL ARTICLE
Comparison of 18F-sodium fluoride uptake in the whole bone, pelvis, and femoral neck of multiple myeloma patients before and after high-dose therapy and conventional-dose chemotherapy Mahdi Zirakchian Zadeh 1,2 & Brian Østergaard 3 & William Y. Raynor 1,4 & Mona-Elisabeth Revheim 1,5,6 & Siavash Mehdizadeh Seraj 1 & Oswaldo Acosta-Montenegro 1 & Cyrus Ayubcha 1 & Dani P. Yellanki 1 & Abdullah Al-Zaghal 1 & Anne L. Nielsen 7 & Caius M. Constantinescu 7 & Oke Gerke 7 & Thomas J. Werner 1 & Hongming Zhuang 2 & Niels Abildgaard 3 & Poul Flemming Høilund-Carlsen 7 & Abass Alavi 1 Received: 14 October 2019 / Accepted: 10 March 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Aim To compare the effects of high-dose therapy (HDT consisting of high-dose chemotherapy followed by autologous stem cell transplantation) and conventional-dose chemotherapy (non-HDT) on the uptake of 18F-sodium fluoride (NaF) in the whole bone, pelvis, and femoral neck of multiple myeloma (MM) patients. Method The data of 19 MM patients who received HDT (61.5 (SD 5.6) years) and 11 MM patients who received conventionaldose chemotherapy (70.9 (SD 7.2) years) were collected in a prospective study. NaF PET/CT imaging was performed at baseline, and 8 weeks and 2 weeks after treatment for the HDT group and the non-HDT group, respectively. A CT-based algorithm was applied to segment the bones, and the global mean SUV (GSUVmean) of the whole bone and pelvis was calculated (OsiriX MD v.9.0, Pixmeo SARL; Bernex, Switzerland). In addition, regions of interest for the whole, medial, and lateral femoral neck were delineated bilaterally. Whole bone and pelvis measurements were replicated by two observers. Results The average GSUVmean in the whole bone and pelvis of the patients who underwent HDT significantly decreased from before to after treatment (− 16.27%, p = 0.02 and − 16.54%, p = 0.01, respectively). A significant decrease in the whole and lateral femoral neck was also observed bilaterally in the HDT group. No significant decrease in average GSUVmean was observed in the non-HDT group. A high level of inter-observer reliability was found in intra-class correlation (ICC for pre-treatment whole bone 0.983, post-treatment whole bone 0.989, pre-treatment whole pelvis 0.998, post-treatment whole pelvis 0.996). Conclusion NaF uptake significantly decreased after treatment in patients who received high-dose therapy. A high level of agreement was observed between two operators for whole bone and pelvis measurements. Keywords Multiple myeloma . Positron emission tomography . NaF . Bone metabolism . PET/CT quantification . High dose chemotherapy . Autologous stem cell transplantation . Conventional-dose chemotherapy
This article is part of the Topical Collection on Hematology * Abass Alavi [email protected] 1
Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St, Philadelphia, PA 19104, USA
2
Department of Radiology, Children’s Hospital of Philadelphia, Philadelphia, PA, USA
3
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