Radiation Segmentectomy of Hepatic Metastases with Y-90 Glass Microspheres
Overview
Radiology
Authors
Affiliations
Purpose: To evaluate safety and efficacy of radiation segmentectomy (RS) with Y glass microspheres in patients with limited metastatic liver disease not amenable to resection or percutaneous ablation.
Methods: Patients with ≤ 3 tumors treated with RS from 6/2015 to 12/2017 were included. Target tumor radiation dose was > 190 Gy based on medical internal radiation dose (MIRD) dosimetry. Tumor response, local tumor progression (LTP), LTP-free survival (LTPFS) and disease progression rate in the treated segment were defined using Choi and RECIST 1.1 criteria. Toxicities were evaluated using modified SIR criteria.
Results: Ten patients with 14 tumors underwent 12 RS. Median tumor size was 3 cm (range 1.4-5.6). Median follow-up was 17.8 months (range 1.6-37.3). Response rates per Choi and RECIST 1.1 criteria were 8/8 (100%) and 4/9 (44%), respectively. Overall LTP rate was 3/14 (21%) during the study period. One-, two- and three-year LTPFS was 83%, 83% and 69%, respectively. Median LTPFS was not reached. Disease progression rate in the treated segment was 6/18 (33%). Median overall survival was 41.5 months (IQR 16.7-41.5). Median delivered tumor radiation dose was 293 Gy (range 163-1303). One major complication was recorded in a patient post-Whipple procedure who suffered anaphylactic reaction to prophylactic cefotetan and liver abscess in RS region 6.5 months post-RS. All patients were alive on last follow-up.
Conclusion: RS of ≤ 3 hepatic segments can safely provide a 2-year local tumor control rate of 83% in selected patients with limited metastatic liver disease and limited treatment options. Optimal dosimetry methodology requires further investigation.
Production and characterization of Zn- and Cu-doped Y2O3-Al2O3-SiO2 (YAS) glass microspheres.
Unal F, Ercan B Turk J Med Sci. 2024; 54(5):1092-1101.
PMID: 39473739 PMC: 11518404. DOI: 10.55730/1300-0144.5888.
Kitsel Y, Petre E, Wong P, Sotirchos V, Vakiani E, Dimopoulos P Cardiovasc Intervent Radiol. 2024; 47(11):1461-1470.
PMID: 39406871 DOI: 10.1007/s00270-024-03870-2.
Yeakel J, Seyedin S, Harada G, Hagopian G, Mahmood S, Bennett R Cancers (Basel). 2024; 16(13).
PMID: 39001464 PMC: 11240767. DOI: 10.3390/cancers16132401.
Interventional radiological therapies in colorectal hepatic metastases.
Vulasala S, Sutphin P, Kethu S, Onteddu N, Kalva S Front Oncol. 2023; 13:963966.
PMID: 37324012 PMC: 10266282. DOI: 10.3389/fonc.2023.963966.
Torres-Jimenez J, Esteban-Villarrubia J, Ferreiro-Monteagudo R, Carrato A Cancers (Basel). 2021; 13(23).
PMID: 34885047 PMC: 8656541. DOI: 10.3390/cancers13235938.