• 1348 Citations
  • 21 h-Index
19992019

Research output per year

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Research Output

  • 1348 Citations
  • 21 h-Index
  • 71 Article
  • 3 Review article
  • 1 Editorial
2019
5 Citations (Scopus)
2018

Nationwide Japanese Prostate Cancer Outcome Study of Permanent Iodine-125 Seed Implantation (J-POPS): first analysis on survival

For The J-Pops Investigators, 2018 Dec 1, In : International Journal of Clinical Oncology. 23, 6, p. 1148-1159 12 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Plan reproducibility of intraoperatively custom-built linked seeds compared to loose seeds for prostate brachytherapy

Kaneda, T., Ohashi, T., Sakayori, M., Sutani, S., Yamashita, S., Momma, T., Takahashi, S., Hanada, T. & Shigematsu, N., 2018 Jan 1, In : Journal of Contemporary Brachytherapy. 10, 4, p. 291-296 6 p.

Research output: Contribution to journalArticle

Predictive factors of long-term rectal toxicity following permanent iodine-125 prostate brachytherapy with or without supplemental external beam radiation therapy in 2216 patients

Tanaka, T., Yorozu, A., Sutani, S., Yagi, Y., Nishiyama, T., Shiraishi, Y., Ohashi, T., Hanada, T., Saito, S., Toya, K. & Shigematsu, N., 2018 Jan 1, (Accepted/In press) In : Brachytherapy.

Research output: Contribution to journalArticle

2 Citations (Scopus)
1 Citation (Scopus)
2017

Quantitative analysis of genitourinary toxicity after iodine-125 brachytherapy for localized prostate cancer: Followup of the International Prostate Symptom Score and Overactive Bladder Symptom Score

Sakayori, M., Ohashi, T., Momma, T., Kaneda, T., Nishimura, S., Sutani, S., Yamashita, S. & Shigematsu, N., 2017 Mar 2, (Accepted/In press) In : Brachytherapy.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Variability of treatment planning of seed implantation: A Japanese multicenter simulation study

Ishiyama, H., Nakano, M., Toya, K., Kota, R., Kikuchi, K., Yamaguchi, T., Kono, N., Kawakami, S., Tsutsumi, Y., Tanaka, T., Eriguchi, T., Ohga, S., Yamaguchi, T., Takakawa, Y., Morita, M., Katayama, N., Ohashi, T., Aoki, M., Yorozu, A. & Saito, S., 2017 Feb 21, (Accepted/In press) In : Brachytherapy.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2016
1 Citation (Scopus)

Multi-institutional retrospective analysis of learning curves on dosimetry and operation time before and after introduction of intraoperatively built custom-linked seeds in prostate brachytherapy

Ishiyama, H., Satoh, T., Yorozu, A., Saito, S., Kataoka, M., Hashine, K., Nakamura, R., Tanji, S., Masui, K., Okihara, K., Ohashi, T., Momma, T., Aoki, M., Miki, K., Kato, M., Morita, M., Katayama, N., Nasu, Y., Kawanaka, T., Fukumori, T. & 7 others, Ito, F., Shiroki, R., Baba, Y., Inadome, A., Yoshioka, Y., Takayama, H. & Hayakawa, K., 2016 Jan 1, In : Journal of Radiation Research. 57, 1, p. 68-74 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Predictive factors of rectal toxicity after permanent iodine-125 seed implantation: Prospective cohort study in 2339 patients

Katayama, N., Yorozu, A., Maruo, S., Kojima, S., Ohashi, T., Tanaka, N., Kikuchi, T., Higashide, S., Saito, S., Dokiya, T., Fukushima, M. & Yamanaka, H., 2016 Nov 1, In : Brachytherapy. 15, 6, p. 736-745 10 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Prospective study of direct radiation exposure measurements for family members living with patients with prostate 125I seed implantation: Evidence of radiation safety

Hanada, T., Yorozu, A., Shinya, Y., Kuroiwa, N., Ohashi, T., Saito, S. & Shigematsu, N., 2016 Feb 18, (Accepted/In press) In : Brachytherapy.

Research output: Contribution to journalArticle

4 Citations (Scopus)
4 Citations (Scopus)
2015
14 Citations (Scopus)

Nationwide Japanese Prostate Cancer Outcome Study of Permanent Iodine-125 Seed Implantation (J-POPS)

Saito, S., Ito, K., Yorozu, A., Aoki, M., Koga, H., Satoh, T., Ohashi, T., Shigematsu, N., Maruo, S., Kikuchi, T., Kojima, S., Dokiya, T., Fukushima, M. & Yamanaka, H., 2015 Apr 1, In : International Journal of Clinical Oncology. 20, 2, p. 375-385 11 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)

Permanent prostate brachytherapy with or without supplemental external beam radiotherapy as practiced in Japan: Outcomes of 1300 patients

Yorozu, A., Kuroiwa, N., Takahashi, A., Toya, K., Saito, S., Nishiyama, T., Yagi, Y., Tanaka, T., Shiraishi, Y. & Ohashi, T., 2015 Mar 1, In : Brachytherapy. 14, 2, p. 111-117 7 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Predictive factors for urinary toxicity after iodine-125 prostate brachytherapy with or without supplemental external beam radiotherapy

Eriguchi, T., Yorozu, A., Kuroiwa, N., Yagi, Y., Nishiyama, T., Saito, S., Toya, K., Hanada, T., Shiraishi, Y., Ohashi, T. & Shigematsu, N., 2015 Oct 29, (Accepted/In press) In : Brachytherapy.

Research output: Contribution to journalArticle

13 Citations (Scopus)

Three-dimensional conformal arc radiotherapy using a C-arm linear accelerator with a computed tomography on-rail system for prostate cancer: Clinical outcomes

Kumabe, A., Fukuhara, N., Utsunomiya, T., Kawase, T., Iwata, K., Okada, Y., Sutani, S., Ohashi, T., Oya, M. & Shigematsu, N., 2015 Oct 12, In : Radiation Oncology. 10, 1, 208.

Research output: Contribution to journalArticle

Urinary and rectal toxicity profiles after permanent iodine-125 implant brachytherapy in Japanese men: Nationwide J-POPS multi-institutional prospective cohort study

Ohashi, T., Yorozu, A., Saito, S., Tanaka, N., Katayama, N., Kojima, S., Maruo, S., Kikuchi, T., Dokiya, T., Fukushima, M. & Yamanaka, H., 2015 Sep 1, In : International Journal of Radiation Oncology Biology Physics. 93, 1, p. 141-149 9 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)
2014

A Dose-response analysis of biochemical control outcomes after 125I monotherapy for patients with favorable-risk prostate cancer

Shiraishi, Y., Yorozu, A., Ohashi, T., Toya, K., Saito, S., Nishiyama, T., Yagi, Y. & Shigematsu, N., 2014 Dec 1, In : International Journal of Radiation Oncology Biology Physics. 90, 5, p. 1069-1075 7 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Assessing protection against radiation exposure after prostate 125I brachytherapy

Hanada, T., Yorozu, A., Kikumura, R., Ohashi, T. & Shigematsu, N., 2014 May, In : Brachytherapy. 13, 3, p. 311-318 8 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Combined brachytherapy and external beam radiotherapy without adjuvant androgen deprivation therapy for high-risk prostate cancer

Ohashi, T., Yorozu, A., Saito, S., Momma, T., Nishiyama, T., Yamashita, S., Shiraishi, Y. & Shigematsu, N., 2014 Jan 9, In : Radiation Oncology. 9, 1, 13.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Five-year potency preservation after iodine-125 prostate brachytherapy

Nishimura, S., Yorozu, A., Ohashi, T., Sakayori, M., Yagi, Y., Nishiyama, T., Saito, S., Shiraishi, Y., Yoshida, K., Toya, K. & Shigematsu, N., 2014 Oct 16, In : International Journal of Clinical Oncology. 19, 5, p. 940-945 6 p.

Research output: Contribution to journalArticle

8 Citations (Scopus)
2013

Comparison of preplanning and intraoperative planning for I-125 prostate brachytherapy

Yoshida, K., Ohashi, T., Yorozu, A., Toya, K., Nishiyama, T., Saito, S., Hanada, T., Shiraishi, Y. & Shigematsu, N., 2013 Apr 1, In : Japanese journal of clinical oncology. 43, 4, p. 383-389 7 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)
13 Citations (Scopus)

Dosimetric effects of prone and supine positions on post-implant assessments for prostate brachytherapy

Ohashi, T., Momma, T., Yamashita, S., Kanai, K., Watanabe, Y., Hanada, T. & Shigematsu, N., 2013 Oct 22, In : Journal of Contemporary Brachytherapy. 5, 3, p. 122-126 5 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Evaluation for local failure by 18F-FDG PET/CT in comparison with CT findings after stereotactic body radiotherapy (SBRT) for localized non-small-cell lung cancer

Takeda, A., Kunieda, E., Fujii, H., Yokosuka, N., Aoki, Y., Oooka, Y., Oku, Y., Ohashi, T., Sanuki, N., Mizuno, T. & Ozawa, Y., 2013 Mar 1, In : Lung Cancer. 79, 3, p. 248-253 6 p.

Research output: Contribution to journalArticle

37 Citations (Scopus)
2 Citations (Scopus)

Outcomes following iodine-125 prostate brachytherapy with or without neoadjuvant androgen deprivation

Ohashi, T., Yorozu, A., Saito, S., Momma, T., Toya, K., Nishiyama, T., Yamashita, S., Shiraishi, Y. & Shigematsu, N., 2013 Nov 1, In : Radiotherapy and Oncology. 109, 2, p. 241-245 5 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)
32 Citations (Scopus)
2012

Analysis of suitable prescribed isodose line fitting to planning target volume in stereotactic body radiotherapy using dynamic conformal multiple arc therapy

Oku, Y., Takeda, A., Kunieda, E., Sudo, Y., Oooka, Y., Aoki, Y., Shimouchi, Y., Nishina, R., Nomura, K., Sugiura, M. & Ohashi, T., 2012 Jan, In : Practical Radiation Oncology. 2, 1, p. 46-53 8 p.

Research output: Contribution to journalArticle

21 Citations (Scopus)

Clinical evidence of particle beam therapy

Shigematsu, N., Shiraishi, Y., Seki, S., Fukada, J. & Ohashi, T., 2012 Apr 1, In : International Journal of Clinical Oncology. 17, 2, p. 75-78 4 p.

Research output: Contribution to journalEditorial

1 Citation (Scopus)

Comparison of clinical, tumour-relatedand dosimetric factors in grade 0-1, grade2 and grade 3 radiation pneumonitis after stereotactic body radiotherapy for lung tumours

Takeda, A., Ohashi, T., Kunieda, E., Sanuki, N., Enomoto, T., Takeda, T., Oku, Y. & Shigematsu, N., 2012 May 1, In : British Journal of Radiology. 85, 1013, p. 636-642 7 p.

Research output: Contribution to journalArticle

32 Citations (Scopus)

Dose volume histogram analysis of focal liver reaction in follow-up multiphasic CT following stereotactic body radiotherapy for small hepatocellular carcinoma

Takeda, A., Oku, Y., Sanuki, N., Kunieda, E., Koike, N., Aoki, Y., Ohashi, T., Iwabuchi, S., Takatsuka, K., Takeda, T. & Sugawara, A., 2012 Sep 1, In : Radiotherapy and Oncology. 104, 3, p. 374-378 5 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Impact of MRI-based postimplant dosimetric assessment in prostate brachytherapy using contrast-enhanced T1-weighted images

Ohashi, T., Momma, T., Yamashita, S., Nagatsuma, K., Kanai, K., Kitagawa, K., Takahashi, S., Hanada, T., Yorozu, A. & Shigematsu, N., 2012 Nov 1, In : Brachytherapy. 11, 6, p. 468-475 8 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)

Multiple myeloma relapse in the irradiated liver: Involvement of hepatocyte growth factor akin to that after hepatocyte transplantation

Uetake, A., Takeda, A., Shigematsu, N., Ikeda, E., Kametaka, M., Ohashi, T. & Kunieda, E., 2012 Dec 1, In : Journal of Radiotherapy in Practice. 11, 4, p. 271-273 3 p.

Research output: Contribution to journalArticle

Nuclear disaster after the Earthquake and Tsunami of March 11

Shigematsu, N., Fukada, J., Ohashi, T., Kawaguchi, O. & Kawata, T., 2012 Mar 1, In : Keio Journal of Medicine. 61, 1, p. 28-34 7 p.

Research output: Contribution to journalReview article

3 Citations (Scopus)

Pericardial and pleural effusions after definitive radiotherapy for esophageal cancer

Fukada, J., Shigematsu, N., Ohashi, T., Shiraishi, Y., Takeuchi, H., Kawaguchi, O. & Kitagawa, Y., 2012 May 1, In : Journal of radiation research. 53, 3, p. 447-453 7 p.

Research output: Contribution to journalReview article

15 Citations (Scopus)
Open Access
7 Citations (Scopus)

Severe COPD is correlated with mild radiation pneumonitis following stereotactic body radiotherapy

Takeda, A., Kunieda, E., Ohashi, T., Aoki, Y., Oku, Y., Enomoto, T., Nomura, K. & Sugiura, M., 2012 Apr, In : Chest. 141, 4, p. 858-866 9 p.

Research output: Contribution to journalArticle

50 Citations (Scopus)
2011
18 Citations (Scopus)

Stereotactic body radiotherapy (SBRT) for oligometastatic lung tumors from colorectal cancer and other primary cancers in comparison with primary lung cancer

Takeda, A., Kunieda, E., Ohashi, T., Aoki, Y., Koike, N. & Takeda, T., 2011 Nov 1, In : Radiotherapy and Oncology. 101, 2, p. 255-259 5 p.

Research output: Contribution to journalArticle

105 Citations (Scopus)

The maximum standardized uptake value (SUVmax) on FDG-PET is a strong predictor of local recurrence for localized non-small-cell lung cancer after stereotactic body radiotherapy (SBRT)

Takeda, A., Yokosuka, N., Ohashi, T., Kunieda, E., Fujii, H., Aoki, Y., Sanuki, N., Koike, N. & Ozawa, Y., 2011 Nov 1, In : Radiotherapy and Oncology. 101, 2, p. 291-297 7 p.

Research output: Contribution to journalArticle

72 Citations (Scopus)
2010

CT evaluations of focal liver reactions following stereotactic body radiotherapy for small hepatocellular carcinoma with cirrhosis: Relationship between imaging appearance and baseline liver function

Sanuki-Fujimoto, N., Takeda, A., Ohashi, T., Kunieda, E., Iwabuchi, S., Takatsuka, K., Koike, N. & Shigematsu, N., 2010 Dec 1, In : British Journal of Radiology. 83, 996, p. 1063-1071 9 p.

Research output: Contribution to journalArticle

31 Citations (Scopus)
41 Citations (Scopus)

Evaluation of the dosimetric parameters for 125 brachytherapy determined in prostate medium using CT images

Hanada, T., Yorozu, A., Ohashi, T., Shigematsu, N. & Maruyama, K., 2010, In : Journal of radiation research. 51, 5, p. 553-561 9 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Weekly Low-Dose Docetaxel-Based Chemoradiotherapy for Locally Advanced Oropharyngeal or Hypopharyngeal Carcinoma: A Retrospective, Single-Institution Study

Fukada, J., Shigematsu, N., Takeda, A., Ohashi, T., Tomita, T., Shiotani, A., Kunieda, E., Kawaguchi, O., Fujii, M. & Kubo, A., 2010 Feb 1, In : International Journal of Radiation Oncology Biology Physics. 76, 2, p. 417-424 8 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)
2009

Dose Distribution Analysis in Stereotactic Body Radiotherapy Using Dynamic Conformal Multiple Arc Therapy

Takeda, A., Kunieda, E., Sanuki, N., Ohashi, T., Oku, Y., Sudo, Y., Iwashita, H., Ooka, Y., Aoki, Y., Shigematsu, N. & Kubo, A., 2009 Jun 1, In : International Journal of Radiation Oncology Biology Physics. 74, 2, p. 363-369 7 p.

Research output: Contribution to journalArticle

48 Citations (Scopus)
41 Citations (Scopus)

Radiosurgical treatment planning for intracranial AVM based on images generated by principal component analysis - A simulation study

Kawaguchi, O., Nyui, Y., Kunieda, E., Onozuka, S., Tsukamoto, N., Fukada, J., Ohashi, T., Hashimoto, S., Ogawa, K. & Kubo, A., 2009 Mar 1, In : Keio Journal of Medicine. 58, 1, p. 41-49 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)