PMID- 36958669 OWN - NLM STAT- MEDLINE DCOM- 20230630 LR - 20231027 IS - 1535-7732 (Electronic) IS - 1051-0443 (Linking) VI - 34 IP - 7 DP - 2023 Jul TI - Yttrium-90 Radiation Segmentectomy of Hepatocellular Carcinoma: A Comparative Study of the Effectiveness, Safety, and Dosimetry of Glass-Based versus Resin-Based Microspheres. PG - 1226-1234 LID - S1051-0443(23)00216-6 [pii] LID - 10.1016/j.jvir.2023.02.030 [doi] AB - PURPOSE: To evaluate the differences in safety, effectiveness, and dosimetry between glass-based and resin-based ablative yttrium-90 ((90)Y) transarterial radioembolization (TARE) of hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Using the modified Response Evaluation Criteria in Solid Tumors and Common Terminology Criteria for Adverse Events, both tumor response and adverse events (AEs) were assessed at 3 months after (90)Y-TARE. Post procedure (90)Y-bremsstrahlung single-photon emission computed tomography/computed tomography voxel-based dosimetry analysis was used to create tumor dose (TD) and normal tissue dose (NTD) volume histograms, and to calculate tumor particle loading and specific activity. The TD and NTD receiver operating characteristic curves evaluated the dose threshold able to predict objective (partial or complete) and complete tumor responses in addition to any-grade and grade >/=3 AE incidences. The chi-square test and Student t-test were used to assess variable differences where appropriate. RESULTS: Between 2019 and 2020, 81 patients with HCC (20 in the resin-based cohort and 61 in the glass-based cohort) underwent ablative (90)Y-TARE. The resin-based cohort had more males (89% vs 65%, P = .03), lower tumor-to-normal ratio (1.81 +/- 0.39 vs 2.22 +/- 0.94, P = .03), higher tumor particle loading (40,172 particles/mL +/- 28,039 vs 17,081 particles/mL +/- 12,555, P = .0001), lower specific activity (158 Bq/particle +/- 3 vs 1,058 Bq/particle +/- 331, P = .001), and lower mean TD (308 Gy +/- 210 vs 794 Gy +/- 523, P = .0002) than the glass-based cohort. No significant differences in baseline characteristics or posttreatment AEs were noted. The overall objective and complete response rates were 85% (95% resin-based vs 82% glass-based; P = .1) and 65% (95% resin-based vs 56% glass-based; P = .003), respectively. The mean TD thresholds able to predict the objective and complete responses were 176 Gy and 247 Gy for resin-based radioembolization and 290 Gy and 481 Gy for glass-based radioembolization, respectively. A maximum NTD of 999 Gy predicted any-grade AEs in glass-based ablative (90)Y-TARE. CONCLUSIONS: Compared with glass-based ablative (90)Y-TARE, resin-based ablative (90)Y-TARE can offer comparable safety and effectiveness profiles for patients with HCC. The impact of the significantly different tumor particle loading, particle specific activities, and delivered TDs on tumor response outcomes merits further investigation. CI - Copyright (c) 2023 SIR. Published by Elsevier Inc. All rights reserved. FAU - Villalobos, Alexander AU - Villalobos A AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. Electronic address: avillalobos@emory.edu. FAU - Arndt, Linzi AU - Arndt L AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. FAU - Cheng, Bernard AU - Cheng B AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. FAU - Dabbous, Howard AU - Dabbous H AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. FAU - Loya, Mohammed AU - Loya M AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. FAU - Majdalany, Bill AU - Majdalany B AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. FAU - Bercu, Zachary AU - Bercu Z AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. FAU - Kokabi, Nima AU - Kokabi N AD - Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, Georgia. LA - eng PT - Journal Article DEP - 20230321 PL - United States TA - J Vasc Interv Radiol JT - Journal of vascular and interventional radiology : JVIR JID - 9203369 RN - 1K8M7UR6O1 (Yttrium-90) RN - 0 (Yttrium Radioisotopes) SB - IM CIN - J Vasc Interv Radiol. 2023 Jul;34(7):1235-1236. PMID: 36958670 CIN - J Vasc Interv Radiol. 2023 Oct;34(10):1844-1846. PMID: 37315682 MH - Male MH - Humans MH - *Carcinoma, Hepatocellular/diagnostic imaging/radiotherapy/drug therapy MH - *Liver Neoplasms/diagnostic imaging/radiotherapy/drug therapy MH - Microspheres MH - Pneumonectomy MH - Yttrium Radioisotopes/adverse effects MH - *Embolization, Therapeutic/adverse effects/methods MH - Retrospective Studies EDAT- 2023/03/24 06:00 MHDA- 2023/06/30 06:42 CRDT- 2023/03/23 20:32 PHST- 2022/06/17 00:00 [received] PHST- 2023/01/29 00:00 [revised] PHST- 2023/02/02 00:00 [accepted] PHST- 2023/06/30 06:42 [medline] PHST- 2023/03/24 06:00 [pubmed] PHST- 2023/03/23 20:32 [entrez] AID - S1051-0443(23)00216-6 [pii] AID - 10.1016/j.jvir.2023.02.030 [doi] PST - ppublish SO - J Vasc Interv Radiol. 2023 Jul;34(7):1226-1234. doi: 10.1016/j.jvir.2023.02.030. Epub 2023 Mar 21.