نتایج جستجو برای: highdoserate brachytherapy
تعداد نتایج: 7959 فیلتر نتایج به سال:
Background: External beam radiotherapy and brachytherapy plays a vital role in the management of cancer cervix. High dose rate brachytherapy is being presently used worldwide for the brachytherapy applications. At present, 2-Dimensional linear array detectors are the most common QA tool used for pretreatment patient specific quality assurance in external beam radiotherapy alon...
conclusions the stereotactic brachytherapy for patients with circumscribed and relatively small size tumors appears to be a safe, feasible, and minimally-invasive treatment. results thirteen patients were male and 16 were female, with the median age of 29 years (range, 2.5 – 64 years). the median follow-up was 95 (range, 6 – 240) months. based on pignatti classification, 10 patients were at low...
AIM To confirm the prognostic value of post-brachytherapy initial tumour regression rate in posterior uveal melanoma. METHODS A prospective, comparative, observational cohort study was carried out on 147 eyes (147 patients) with choroidal melanoma (mean age 61 years) treated with Ru-106 brachytherapy. OBSERVATION PROCEDURE Patients were followed clinically and ultrasonically every 6.7 (SD 0...
BACKGROUND Bulky endobronchial tumours in patients with lung cancer are difficult to treat. Brachytherapy and photodynamic therapy (PDT) are variably effective, and the combination of these treatments is not often recommended. However, cell culture studies and animal studies indicate a possible synergistic effect of combining PDT with ionising radiation. We assessed the safety and effectiveness...
PURPOSE To present experience with high dose-rate endobronchial brachytherapy in the treatment of primary tracheal tumors. PATIENTS AND METHODS Four patients with nonresected primary tracheal tumors are presented: 2 cases of squamous cell carcinoma of the trachea, 1 of recurrent adenoid cystic carcinoma, and 1 with recurrent plasmacytoma. All received brachytherapy, alone or as a boost for pr...
PURPOSE To outline the evolution of computerized brachytherapy treatment planning in the United States through a review of technological developments and clinical practice refinements. MATERIAL AND METHODS A literature review was performed and interviews were conducted with six participants in the development of computerized treatment planning for brachytherapy. RESULTS Computerized brachyt...
PURPOSE To evaluate the suitability of treating atypical fibroxanthoma (AFX), an uncommon skin malignancy, with electronic brachytherapy. MATERIAL AND METHODS From Feb 2013 to Sep 2014, we were referred a total of 8 cases of AFX in 7 patients, all involving the scalp. All of them were treated with electronic brachytherapy 50 Kev radiations (Xoft Axxent®, Fremont, California). All lesions rece...
− In the current brachytherapy practice, the procedures to determine the absorbed dose imparted to the patient are affected by an uncertainty higher than in radiotherapy with external beams. That could reduce the success of brachytherapy treatments. Most of the uncertainty is due to a lacking metrology: no absorbed-dose primary standards are so far available to assure direct traceability in dos...
PURPOSE The aim of this paper is to report the treatment of angiosarcoma of the scalp. High-dose-rate (HDR) brachytherapy with an individual mold applicator is presented. CASE DESCRIPTION A case of a 75-year-old male will be presented with multicentric lesions over the scalp in the temple and crown region. Biopsy diagnosis was angiosarcoma of the scalp, nonoperable. The patient was qualified ...
AIMS To evaluate the efficacy of interstitial brachytherapy using (125)iodine ((125)I) seeds for the treatment of recurrent multimodal treated medulloblastoma. MATERIALS AND METHODS Between September 1989 and August 2009, 12 patients (female:male=3:9, median age 19 years, range 7-55 years) with 23 recurrent medulloblastomas underwent interstitial brachytherapy using (125)I seeds. Before brach...
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