A5045633830- Advanced Radiotherapy Techniques
- Radiation Therapy and Dosimetry
- Radiation Dose and Imaging
- Breast Cancer Treatment Studies
- Medical Imaging Techniques and Applications
- Prostate Cancer Diagnosis and Treatment
- Breast Implant and Reconstruction
- Prostate Cancer Treatment and Research
- Nuclear Physics and Applications
- Boron Compounds in Chemistry
- Radiation Detection and Scintillator Technologies
- Advanced X-ray and CT Imaging
- Breast Lesions and Carcinomas
- Wireless Body Area Networks
- Endometriosis Research and Treatment
- Pregnancy and preeclampsia studies
- Sperm and Testicular Function
- Influenza Virus Research Studies
- Management of metastatic bone disease
- Regulation of Appetite and Obesity
- Adhesion, Friction, and Surface Interactions
- Urinary Bladder and Prostate Research
- Muscle Physiology and Disorders
- Veterinary medicine and infectious diseases
- Kidney Stones and Urolithiasis Treatments
Hokkaido University
2023-2024
Sapporo University
2024
Health Sciences University of Hokkaido
2024
Takarazuka City Hospital
2015-2023
Osaka City General Hospital
2022
Osaka Prefectural Medical Center
2022
Osaka University
2010-2018
Tokyo University of Agriculture and Technology
2014
Purpose: Respiratory monitoring systems are used to detect the respiratory phase of patients during planning and administration gated radiotherapy by using four‐dimensional computed tomography (4DCT) or 4D positron‐emission tomography/CT (4DPET/CT) linear accelerator (linac), respectively. Generally, identical for 4DCT, 4DPET/CT, linac. However, different sometimes in combination because accessibility may differ manufacturer. The combined use phase‐based gating is concern differences timing...
The Task Group 218 (TG-218) report was published by the American Association of Physicists in Medicine 2018, recommending appropriate use gamma index analysis for patient-specific quality assurance (PSQA). paper demonstrates that PSQA radiotherapy Japan appropriately applies considering TG-218.This survey estimated acceptance state radiotherapeutic institutes or facilities guideline using a web-based questionnaire. To investigate an facility-specific conditions, we researched optimal...
Flattening filter–free (FFF) photon beams minimize the intrafraction motion of tumors, and this feature is useful in pulmonary malignancies, such as non-small-cell lung cancer (NSCLC). However, radiobiological effects on NSCLC cells, which are often treated with stereotactic body radiotherapy (SBRT), have not been investigated sufficiently. Although cell motility may be promoted by a low dose, relationship between dose rate has evaluated. The purpose study was to evaluate FFF survival NSCLC....
The amino acid metabolism of bovine follicles during in vitro growth (IVG) was evaluated to identify potential indicators health culture. ovarian cortex sliced, prepared as strips, and cultured for 6 days. Tissue samples were examined histologically before after days culture, the degree follicle activation classified either high or low based on number growing secondary present (high: 7~11; low: 0~1). In a separate experiment, (diameter range: 100~200 μm) manually isolated cultured, their...
Abstract Receptors for high pathogenicity avian influenza viruses (HPAIVs) in the mammary glands of dairy cattle were detected using various recombinant hemagglutinins (rHAs). Results demonstrated presence fucosylated and non-fucosylated α2,3 sialosides, which typically targeted by HA clade 2.3.4.4b HPAIVs.
Abstract In conducting dosimetric assays of seed sources containing iodine-125 (125I), several major guidelines require the medical physicist to verify source strength before patient treatment. Japanese do not mandate at facilities, but since 2017, three incidents have occurred in Japan wherein seeds with incorrect strengths were delivered facilities. Therefore, this study aimed survey current situation and any barriers assay facilities Japan. We conducted a questionnaire-based from December...
Real-time fluoroscopic verification of the active source position during actual treatment is only established method to prevent high-dose-rate (HDR) brachytherapy events. The challenge spurious signals from an HDR 192Ir that result in image halation, making positions indiscernible when using a non-modified intensifier fluoroscope. We have previously reported for observing by elaborately modified system. newly developed flat-panel detector fluoroscope is, contrast, inherently halation-free...
The authors sought to determine the optimal collimator leaf margins which minimize normal tissue dose while achieving high conformity and evaluate differences between use of a flattening filter-free (FFF) beam flattening-filtered (FF) beam.Sixteen lung cancer patients scheduled for stereotactic body radiotherapy underwent treatment planning 7 MV FFF 6 FF beams target volume (PTV) with range (-3 3 mm). Forty grays per four fractions were prescribed as PTV D95. For PTV, heterogeneity index...
The major errors in HDR brachytherapy are related to treatment distance, almost all of which caused by incorrect applicator information. aim this study is propose a quick pretreatment verification method evaluate channel length and dwell position with transparent applicator, which, addition, suitable as an education tool assist the understanding structure.A model was fabricated using three-dimensional printer resin. Its be replica real gynecological applicator. performed observing planned...
Early‐stage prostate cancer is widely treated by iodine‐125 (I‐125) seed implantation. While quality assurance methods are in place to assure consistency I‐125 source strength, current involve the breaking of sterilization package, raising issues concerning sterility and time limitations. The purpose this study was develop a method characterizing total strength seeds within cartridge that has been sealed package evaluate probability detecting an out‐of‐calibration (aberrant seed). We defined...
Boron Neutron Capture Therapy (BNCT) is a new and promising cancer therapy. At present, development of accelerator based neutron source (ABNS) underway to be utilized as instead nuclear reactor. However, it known that the fields formed with accelerators have different characteristics depending on kind accelerators. It means we characterize field before practical use. In authors' group, various neutronics characterization devices been developed for our BNCT machine named CSePT. includes...
ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Yoshida K, Otani Y, Nose T, et al. Case report of a dose-volume histogram analysis rib fracture after accelerated partial breast irradiation: interim Japanese prospective multi-institutional feasibility study. Journal Contemporary Brachytherapy. 2018;10(3):274-278. doi:10.5114/jcb.2018.76983. APA Yoshida, K., Otani, Y., Nose, T., Yoden, E., Asahi, S., & Tsukiyama, I. (2018). Brachytherapy, 10(3), 274-278....
In high-dose-rate brachytherapy, the geometry of radioactive source is sometimes updated. Some institutions use a different model for dose calculation in treatment planning and treatment. The effects this discrepancy were examined four types plans, ten patients selected each plan. impact models depended on plan, patients, index. To reduce uncertainty improve reliability data, it would be better to more robust metrics (D90 D2cc) evaluation facilities with problem.
Intensity modulated radiation therapy (IMRT) is one of a standard treatment for localized prostate cancer. Although lower complication expected smaller target margin, determination optimal margin important. For bony-structure based registration, internal motion the main factor determining from clinical volume to planning volume. The purpose this study was measure interfractional and identity factors which enlarge or reduce with special focus on patients’ anatomical characteristics. 586 image...
Autoimmune diseases (AIDs) alter the placental immune environment leading to fetal loss. This study investigated effects of AIDs on pregnancy and placenta in AID-prone MRL/MpJ-Faslpr/lpr mice wild-type MRL/MpJ, which were mated with male MRL/MpJ at five months defined as moLpr moMpJ, respectively. AID indices (spleen weight serum autoantibody levels) fertility status (number size fetuses, morphology, comprehensive gene expression placentas) evaluated gestational day 15.5. Both strains showed...
The histomorphological features of normal kidneys in cats and dogs have been revealed despite the high susceptibility to tubulointerstitial damage. Herein, histological characteristics two species were compared. Cytoplasmic lipid droplets (LDs) abundant proximal convoluted tubules (PCTs) aged 23-27 months but scarce 24-27 months. LDs rarely observed distal (DTs) collecting ducts (CDs) either species, as visualized by expression Tamm-Horsfall protein 1, calbindin-D28K, aquaporin 2....