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Nakano M, Yorozu A, Saito S, Sugawara A, Maruo S, Kojima S, Kikuchi T, Fukushima M, Dokiya T, Yamanaka H. Seed migration after transperineal interstitial prostate brachytherapy by using loose seeds: Japanese prostate cancer outcome study of permanent iodine-125 seed implantation (J-POPS) multi-institutional cohort study. Radiat Oncol 2015; 10:228. [PMID: 26577301 PMCID: PMC4650265 DOI: 10.1186/s13014-015-0532-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 10/28/2015] [Indexed: 11/10/2022] Open
Abstract
Background The incidence and associated factors of loose seed migration were investigated in cohort 1 of the Japanese Prostate Cancer Outcome Study of Permanent Iodine-125 Seed Implantation (J-POPS). Methods The study subjects were 2160 patients, consisting of 1641 patients who underwent permanent iodine-125 seed implantation (PI) and 519 patients who underwent PI combined with external beam radiation therapy (PI + EBRT). The presence or absence of seed migration to the chest and abdominal/pelvic region was determined. Results Seed migration was observed in 22.7 % of PI group patients and 18.1 % of PI + EBRT group patients (p = 0.0276). Migration to the lungs and abdominal/pelvic region was observed in 14.6 % and 11.1 % of the patients in the PI group, and 11.2 % and 8.5 % of the patients in the PI + EBRT group, respectively. In the PI group, the number of implanted seeds was associated with the seed migration incidence. Neither the PI nor the PI + EBRT group showed any difference in the volume of the prostate receiving 100 % of the prescribed dose (V100 [%]) or the minimal dose received by 90 % of the prostate volume (D90 [Gy]) between the patients with and without seed migration. Conclusions This prospective cohort study investigating the largest number of past cases showed no difference in D90 (Gy) or V100 (%) between seed migration or the absence thereof in both the PI group and PI + EBRT group. Trial registration ClinicalTrials.gov: NCT00534196
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Affiliation(s)
- Masahiro Nakano
- Department of Urology, Gifu University Graduate School of Medicine, 1-1Yanagito, Gifu-shi, Gifu, 501-1194, Japan.
| | - Atsunori Yorozu
- Department of Radiation Oncology, National Hospital Organization, Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan.
| | - Shiro Saito
- Department of Urology, National Hospital Organization Tokyo Medical Center, 2-5-1 Higashigaoka, Meguro-ku, Tokyo, 152-8902, Japan.
| | - Akitomo Sugawara
- Department of Radiation Oncology, Tokai University, Hachioji Hospital, 1838 Ishikawa-machi, Hachioji-shi, Tokyo, 192-0032, Japan.
| | - Shinichiroh Maruo
- Translational Research Informatics center, 1-5-4 Minatojima-minamimachi Chuo-ku, Kobe, Hyogo, 650-0047, Japan.
| | - Shinsuke Kojima
- Translational Research Informatics center, 1-5-4 Minatojima-minamimachi Chuo-ku, Kobe, Hyogo, 650-0047, Japan.
| | - Takashi Kikuchi
- Translational Research Informatics center, 1-5-4 Minatojima-minamimachi Chuo-ku, Kobe, Hyogo, 650-0047, Japan.
| | - Masanori Fukushima
- Translational Research Informatics center, 1-5-4 Minatojima-minamimachi Chuo-ku, Kobe, Hyogo, 650-0047, Japan.
| | - Takushi Dokiya
- Department of Radiology, Kyoundo Hospital, 1-8 Kandasurugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.
| | - Hidetoshi Yamanaka
- Institute of Preventive Medicine, Kurosawa Hospital, 187 Yanakamachi, Takasaki-shi, Gunma, 370-1203, Japan.
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Botta F, Cremonesi M, Ferrari ME, Amato E, Guerriero F, Vavassori A, Sarnelli A, Severi S, Pedroli G, Paganelli G. Investigation of 90Y-avidin for prostate cancer brachytherapy: a dosimetric model for a phase I–II clinical study. Eur J Nucl Med Mol Imaging 2013; 40:1047-56. [DOI: 10.1007/s00259-013-2383-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 02/26/2013] [Indexed: 11/24/2022]
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