Research theme for competitive and other funds (3)：
2021 - 2025 Development of physically and biologically conformal high-precision photon irradiation strategy tailored to the clinicopathological features of metastatic brain tumors
2018 - 2022 Improvement of precision and less invasiveness on frameless photon radiosurgery for intracranial vascular malformations
2013 - 2016 Development of less invasive and high-precision frameless stereotactic irradiation for intracranial vascular malformations
Papers (57)：
Kazuhiro Ohtakara, Sosuke Arakawa, Makoto Nakao, Hideki Muramatsu, Kojiro Suzuki. Twenty-Month Regression Following Concurrent Conventional Whole-Brain Irradiation and Chemoimmunotherapy for ≥3.8 cm Cerebellar Metastasis From Small Cell Lung Cancer. Cureus. 2023
Kazuhiro Ohtakara, Kuniaki Tanahashi, Takeshi Kamomae, Kojiro Suzuki. 5-Fraction Re-radiosurgery for Progression Following 8-Fraction Radiosurgery of Brain Metastases From Lung Adenocarcinoma: Importance of Gross Tumor Coverage With Biologically Effective Dose ≥80 Gy and Internal Dose Increase. Cureus. 2023
Kazuhiro Ohtakara, Kuniaki Tanahashi, Takeshi Kamomae, Eiji Ito, Kojiro Suzuki. Local Control Failure After Five-Fraction Stereotactic Radiosurgery Alone for Symptomatic Brain Metastasis From Squamous Cell Lung Carcinoma Despite 43 Gy to Gross Tumor Margin With Internal Steep Dose Increase and Tumor Shrinkage During Irradiation. Cureus. 2023
Kazuhiro Ohtakara, Kojiro Suzuki. Five-Fraction Stereotactic Radiosurgery With Non-Contrast-Enhanced MRI-Based Target Definition and Moderate Dose Spillage Margin for Limited Brain Metastases With Impaired Renal Function. Cureus. 2023
