601 results on '"Koizumi, Masahiko"'
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2. The effects of distance between the imaging isocenter and brain center on the image quality of cone-beam computed tomography for brain stereotactic irradiation
3. Variation in Hounsfield unit calculated using dual-energy computed tomography: comparison of dual-layer, dual-source, and fast kilovoltage switching technique
4. Long-term geometric quality assurance of radiation focal point and cone-beam computed tomography for Gamma Knife radiosurgery system
5. Impact of magnetic resonance imaging-related geometric distortion of dose distribution in fractionated stereotactic radiotherapy in patients with brain metastases
6. Circulating Plasma Exosomal PD-L1 Predicts Prognosis of Head and Neck Squamous Cell Carcinoma After Radiation Therapy
7. Comparison of dosimetric parameters and robustness for rotational errors in fractionated stereotactic irradiation using automated noncoplanar volumetric modulated arc therapy for patients with brain metastases: single- versus multi-isocentric technique
8. Autonomic function measurements for evaluating fatigue and quality of life in patients with breast cancer undergoing radiation therapy: a prospective longitudinal study
9. Improvement of target coverage using automated non-coplanar volumetric modulated arc therapy planning in stereotactic radiotherapy for cervical metastatic spinal tumors
10. Dose reduction of hippocampus using HyperArc planning in postoperative radiotherapy for primary brain tumors
11. Clinical target volume segmentation based on gross tumor volume using deep learning for head and neck cancer treatment
12. Author Correction: Inhibitory effects of dopamine receptor D1 agonist on mammary tumor and bone metastasis
13. Machine log file-based dose verification using novel iterative CBCT reconstruction algorithm in commercial software during volumetric modulated arc therapy for prostate cancer patients
14. Improvement of image quality for pancreatic cancer using deep learning-generated virtual monochromatic images: Comparison with single-energy computed tomography
15. Dual-energy computed tomography image-based volumetric-modulated arc therapy planning for reducing the effect of contrast-enhanced agent on dose distributions
16. Stereotactic body radiation therapy planning for liver tumors using functional images from dual-energy computed tomography
17. Relationship between hydrogel spacer distribution and dosimetric parameters in linear‐accelerator‐based stereotactic body radiotherapy for prostate cancer
18. Evaluation of beam-on time and number of breath-holds using a flattening-filter-free beam with the deep inspiration breath-hold method in left-sided breast cancer
19. Effect of collimator angle on HyperArc stereotactic radiosurgery planning for single and multiple brain metastases
20. Volumetric modulated arc therapy planning based on virtual monochromatic images: Effect of inaccurate CT numbers on dose distributions
21. Correlation Between Dosimetric Parameters and Local Control in Definitive Radiotherapy for Head and Neck Cancers
22. Quality of palliative radiotherapy assessed using quality indicators: a multicenter survey.
23. Irradiated Cell-derived Exosomes Enhance Cell Proliferation and Radioresistanceviathe MAPK/Erk Pathway
24. Estimation of electron density, effective atomic number and stopping power ratio using dual-layer computed tomography for radiotherapy treatment planning
25. Clinical implementation of contrast-enhanced four-dimensional dual-energy computed tomography for target delineation of pancreatic cancer
26. How Well Does Dual-energy CT with Fast Kilovoltage Switching Quantify CT Number and Iodine and Calcium Concentrations?
27. Dual-energy computed tomography-based iodine concentration as a predictor of histopathological response to preoperative chemoradiotherapy for pancreatic cancer
28. Impact of magnetic resonance imaging-related geometric distortion of dose distribution in fractionated stereotactic radiotherapy in patients with brain metastases
29. Circulating Plasma Exosomal PD-L1 Predicts Prognosis of Head and Neck Squamous Cell Carcinoma After Radiation Therapy
30. Novel strategy with the automatic non-coplanar volumetric-modulated arc therapy for angiosarcoma of the scalp
31. A Third-Generation Adaptive Statistical Iterative Reconstruction for Contrast-Enhanced 4-Dimensional Dual-Energy Computed Tomography for Pancreatic Cancer
32. Validation of robust radiobiological optimization algorithms based on the mixed beam model for intensity-modulated carbon-ion therapy
33. Couch height–based patient setup for abdominal radiation therapy
34. Physics of epi-thermal boron neutron capture therapy (epi-thermal BNCT)
35. Dosimetric Evaluation of CyberKnife Synchrony System for Liver Tumors With Respiratory Phase Shifts
36. Ultra-high Dose-rate Carbon-ion Scanning Beam With a Compact Medical Synchrotron Contributing to Further Development of FLASH Irradiation
37. The linker of nucleoskeleton and cytoskeleton complex is required for X-ray-induced epithelial-mesenchymal transition
38. KRT13 is upregulated in pancreatic cancer stem-like cells and associated with radioresistance
39. Automated Non-coplanar Volumetric Modulated Arc Therapy Planning for Maxillary Sinus Carcinoma
40. Optimization of GATE and PHITS Monte Carlo code parameters for uniform scanning proton beam based on simulation with FLUKA general-purpose code
41. Monotherapeutic high-dose-rate brachytherapy for prostate cancer: A dose reduction trial
42. Impact of time-related factors on biologically accurate radiotherapy treatment planning
43. Transient modulation of calcium and parathyroid hormone stimulates bone formation
44. Radiation therapy enhances systemic antitumor efficacy in PD-L1 therapy regardless of sequence of radiation in murine osteosarcoma
45. Inhibitory Effects of Dopamine Receptor D1 Agonist on Mammary Tumor and Bone Metastasis
46. Weekly Verification of Dosimetric Data for Virtual Wedge Using a 2D Diode Detector Array
47. High Dose Local Photon Irradiation Is Crucial in Anti-CTLA-4 Antibody Therapy to Enhance the Abscopal Response in a Murine Pancreatic Carcinoma Model
48. Survey of malignant pleural mesothelioma treatment in Japan: Patterns of practice and clinical outcomes in tomotherapy facilities
49. Improvement in bladder volume reproducibility using A‐mode portable ultrasound bladder scanner in moderate‐hypofractionated volumetric modulated arc therapy for prostate cancer patients
50. Primary CNS lymphoma treated with radiotherapy in Japan: a survey of patients treated in 2005–2009 and a comparison with those treated in 1985–2004
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