A5073836980- Advanced Radiotherapy Techniques
- Prostate Cancer Diagnosis and Treatment
- Prostate Cancer Treatment and Research
- Endometrial and Cervical Cancer Treatments
- Breast Cancer Treatment Studies
- Management of metastatic bone disease
- Head and Neck Cancer Studies
- Uterine Myomas and Treatments
- Thyroid Cancer Diagnosis and Treatment
- Head and Neck Anomalies
- Urologic and reproductive health conditions
- Thyroid and Parathyroid Surgery
- Hepatocellular Carcinoma Treatment and Prognosis
- Breast Lesions and Carcinomas
- Renal cell carcinoma treatment
- Nonmelanoma Skin Cancer Studies
- Cancer and Skin Lesions
- Spinal Fractures and Fixation Techniques
- Advanced X-ray and CT Imaging
- Cancer Risks and Factors
- Neurosurgical Procedures and Complications
- Lung Cancer Diagnosis and Treatment
- Breast Implant and Reconstruction
- Radiology practices and education
- Urological Disorders and Treatments
Japanese Foundation For Cancer Research
2024
Juntendo University
2011-2021
Juntendo University Nerima Hospital
2020
Juntendo University Hospital
2019
University of California, San Francisco
2017
To develop an accurate method of fusing computed tomography (CT) with magnetic resonance imaging (MRI) for post-implant dosimetry after prostate seed implant brachytherapy.Prostate cancer patients were scheduled to undergo CT and MRI brachytherapy. We obtained the three sequences on fat-suppressed T1-weighted (FST1-WI), T2-weighted (T2-WI), T2*-weighted (T2*-WI) in each patient. compared lengths widths 450 source images 10 study CT, FST1-WI, T2-WI, T2*-WI. After CT-MRI fusion using positions...
This study was carried out to evaluate the influence of fraction size 2.25 Gy on local control T1 and T2 laryngeal hypopharyngeal cancers. Between August 2002 December 2010, 80 patients with or cancers were treated definitive radiotherapy a Gy. Primary sites larynx in 69 hypopharynx 11. Fifty-three 27 T2. All patients' pathology squamous cell carcinoma except one carcinosarcoma. Radiotherapy delivered 5 days/week 4-MV photon beam up total dose 63.0 Median treatment time 41 days. Statistical...
Coplanar extended-field intensity-modulated radiation therapy (EF-IMRT) targeting the whole-pelvic and para-aortic lymph nodes in patients with advanced cervical cancer results impaired creatinine clearance. An improvement renal function cannot be expected unless low-dose (approximately 10 Gy) kidney exposure is reduced. The dosimetric method should considered during EF-IMRT planning to further reduce kidneys. To assess usefulness of non-coplanar kidney-avoiding beams spare kidneys carcinoma...
This study aimed to compare the outcomes and toxicities between patients treated with image guided radiation therapy (IGRT) using fiducial markers non-IGRT in intensity modulated (IMRT) for prostate cancer.
We designed a bi-valve vaginal speculum high-dose-rate (HDR) interstitial gynecologic brachytherapy applicator. This allows for both direct view of the cervix and image-guided applicator placement. The purpose this study was to assess validity new applicator.The have 25-mm arc, which can be spread transversely 35-mm wide, with 10 insertion holes; it produced using stereolithographic printer biocompatible Dental SG resin. For resin radiodensity measured in Hounsfield units (HU) computed...
To prospectively investigate the efficacy and feasibility of focal low-dose-rate (LDR) prostate brachytherapy for low- intermediate-risk cancer.Between October 2014 May 2019, nineteen cancer patients who presented with abnormality on both diffusion-weighted T2-weighted magnetic resonance imaging (MRI) underwent LDR at our institution. Focal gross tumor volume (F-GTV) was delineated transrectal ultrasound, based seen fused MRI. F-GTV expanded by 5 mm, as a safety margin, to create clinical...
This is a report of our initial experience using computed tomography (CT)-guided interstitial high dose rate (HDR) brachytherapy to treat bulky pelvic nodal metastases as part definitive radiotherapy. Between February 2015 and April 2019, 14 cervical/endometrial cancer patients presenting with node(s) underwent boost in institution. In total, 17 nodes were treated. The median maximum diameters the positive at time diagnosis first implant 25 mm (range: 10-65 mm) 16 9-51 mm), respectively....
Abstract Purpose We sought dosimetric predictors of a decreasing estimated glomerular filtration rate (eGFR) in gynecological oncology patients receiving extended-field radiation therapy (EFRT). Materials and methods Between July 2012 April 2020, 98 consecutive cervical or endometrial cancer underwent EFRT whole-pelvis (WPRT) with concurrent cisplatin chemotherapy our institution. To explore the effect on renal function, function WPRT was examined. Of patients, 34 including...
Abstract This study aimed to compare toxicities, prostate volume and dosimetry, between patients who underwent intensity-modulated radiation therapy (IMRT) combined with ≥3 months of neoadjuvant androgen deprivation (NADT) those without NADT for cancer. In total, 449 intermediate- high-risk cancer received 78 Gy IMRT in 39 fractions, which 129 were treated any ADT (non-ADT group) 320 (NADT group). Adverse events dose-volume indices compared the two groups retrospectively. The group had a...
In patients with well-differentiated papillary thyroid carcinoma (PTC), late recurrence is very rare. It unusual that 18F-fluorodeoxyglucose positron-emission tomography/computed tomography (PET/CT) shows hypermetabolic lesions in PTC metastases. We demonstrate an exceptional case exhibiting a first relapse 37 years after hemithyroidectomy to treat PTC. Recurrent metastasis of should be considered as differential diagnosis even if the elapsed time from initial treatment great. A left...
To assess the variability in rectal and bladder dosimetric parameters determined according to post-implant computed tomography (CT) images patients with or without a urethral catheter.Patients prostate cancer who were scheduled undergo CT after brachytherapy between October 2012 January 2014 included. We obtained series urinary catheter each patient. compared doses 18 on series.The shifts seed positions place 1.3 ± 0.3 mm (mean standard deviation). The radiation rectum, as series, higher...
Abstract Aim Late adverse effects following radiation therapy for prostate cancer involve the urinary and lower gastrointestinal tracts, with continuous rectal bleeding being most serious issue. We focused on late effects, particularly after volumetric-modulated arc (VMAT), patients locally advanced cancer. Materials Methods Seventy-three localized were treated using VMAT an image-guided system. Patient age at start of irradiation ranged from 54 to 81 years (median, 71 years). The follow-up...
ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Kunogi H, Hsu I, Sasai K. Unresectable bulky chest wall recurrent breast cancer controlled with CT-guided interstitial high-dose-rate brachytherapy and external beam radiotherapy adjuvant hormonal therapy â case report. Journal of Contemporary Brachytherapy. 2021;13(4):451-457. doi:10.5114/jcb.2021.108600. APA Kunogi, H., Hsu, I., & Sasai, (2021). Brachytherapy, 13(4), 451-457....