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ABFM NEWS - Radioterapia
 
Analysis of Salivary Flow and Dose–Volume Modeling of Complication Incidence in Patients With Head-and-Neck Cancer Receiving Intensity-Modulated...
 
To investigate dose–volume effects of salivary flow and the functional recovery over time, using salivary function data and different models of normal tissue complication probability (NTCP)... [+ leia mais]
Fonte: Int J Radiat Oncol Biol Phys.
 
 
Influence of daily setup measurements and corrections on the estimated delivered dose during IMRT treatment of prostate cancer patients.
 
To evaluate the impact of marker-based position verification, using daily imaging and an off-line correction protocol, by calculating the delivered dose to prostate, rectum and bladder... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Radiotherapy and Oncology.
 
 
Quality assurance in the 22991 EORTC ROG trial in localized prostate cancer: Dummy run and individual case review.
 
EORTC trial 22991 was designed to evaluate the addition of concomitant and adjuvant short-term hormonal treatments to curative radiotherapy in terms of disease-free survival for patients with intermediate risk localized prostate cancer... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Radiotherapy and Oncology.
 
 
Dose Escalation of Intensity-Modulated Radiotherapy or Brachytherapy Benefits Patients With Intermediate-Risk Prostate Cancer: Presented at ASCO-GU
 
Patients with intermediate-risk prostate cancer achieve higher rates of biochemical control with dose escalation of intensity-modulated radiotherapy (IMRT) or permanent transperineal brachytherapy (BRT)... [+ leia mais]
Fonte: Doctor s Guide Publishing.
 
 
Dosimetric Evaluation of Heterogeneity Corrections for RTOG 0236: Stereotactic Body Radiotherapy of Inoperable Stage I-II Non–Small-Cell Lung Cancer.
 
Using a retrospective analysis of treatment plans submitted from multiple institutions accruing patients to the Radiation Therapy Oncology Group (RTOG) 0236 non–small-cell stereotactic body radiotherapy protocol, the present study determined the dose prescription and critical structure constraints for future stereotactic body radiotherapy lung protocols that mandate density-corrected dose calculations... [+ leia mais]
Fonte: Int J Radiat Oncol Biol Phys.
 
 
Analysis of the Pro-Qura Database: Rectal dose, implant quality, and brachytherapist s experience.
 
This study analyzed rectal dosimetry outcomes of Pro-Qura proctored implants to assess the achievability of proposed rectal dose constraints in the setting of standardized pre- and postimplant dosimetry in community-based brachytherapy programs... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Brachytherapy.
 
 
Dynamic gamma knife radiosurgery.
 
Gamma knife has been the treatment of choice for various brain tumors and functional disorders. Current gamma knife radiosurgery is planned in a |ball-packing| approach and delivered in a |step-and-shoot| manner, i.e. it aims to |pack| the different sized spherical high-dose volumes (called |shots|) into a tumor volume... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Physics in Medicine and Biology.
 
 
Draft ICRP Reports.
 
"The work of an ICRP Task Group is nearing completion. The report of the Task Group addresses |Preventing Accidental Exposures from New External Beam Radiation Therapy Technologies... " [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: ICRP.
 
 
Characterization of Target Volume Changes During Breast Radiotherapy Using Implanted Fiducial Markers and Portal Imaging.
 
To determine target volume changes by using volume and shape analysis for patients receiving radiotherapy after breast conservation surgery and to compare different methods of automatically identifying changes in target volume, position, size, and shape during radiotherapy for use in adaptive radiotherapy... [+ leia mais]
Fonte: Int J Radiat Oncol Biol Phys.
 
 
A method to analyze the cord geometrical uncertainties during head and neck radiation therapy using cone beam CT.
 
We developed a method to analyze quantitatively the residual cord geometrical uncertainties after image registration during head and neck radiation therapy by using sequential cone beam CT (CBCT). The geometrical centroid line of cervical spinal canal was computed to serve as a cord surrogate... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Rdiotherapy and Oncology.
 
 
Atlas-based functional radiosurgery: Early results.
 
Functional disorders of the brain, such as dystonia and neuropathic pain, may respond poorly to medical therapy. Deep brain stimulation (DBS) of the globus pallidus pars interna (GPi) and the centromedian nucleus of the thalamus (CMN) may alleviate dystonia and neuropathic pain, respectively... [+ leia mais]
Fonte: Medical Physics.
 
 
Optimizing the dynamic range extension of a radiochromic film dosimetry system.
 
The authors present a radiochromic film dosimetry protocol for a multicolor channel radiochromic film dosimetry system consisting of the external beam therapy (EBT) model GAFCHROMICTM film and the Epson Expression 1680 flat-bed document scanner... [+ leia mais]
Fonte: Medical Physics.
 
 
Accuracy in the localization of thoracic and abdominal tumors using respiratory displacement, velocity, and phase.
 
Current four dimensional (4D) computed tomography (CT) reconstruction techniques are retrospectively created based on either the phase or displacement of the respiratory signal... [+ leia mais]
Fonte: Medical Physics.
 
 
Variability of Target and Normal Structure Delineation for Breast Cancer Radiotherapy: An RTOG Multi-Institutional and Multiobserver Study.
 
To quantify the multi-institutional and multiobserver variability of target and organ-at-risk (OAR) delineation for breast-cancer radiotherapy (RT) and its dosimetric impact as the first step of a Radiation Therapy Oncology Group effort to establish a breast cancer atlas... [+ leia mais]
Fonte: Int J Radiat Oncol Biol Phys.
 
 
Prediction of seed migration after transperineal interstitial prostate brachytherapy with I-125 free seeds.
 
The present study was undertaken to determine the incidence and predictors of seed migration after transperineal interstitial prostate brachytherapy using I-125 free seeds... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Brachytherapy.
 
 
Assessment of carotid artery dose in the treatment of nasopharyngeal cancer with IMRT versus conventional radiotherapy.
 
"To determine the radiation dose to the carotid artery in nasopharyngeal cancer patients treated with intensity-modulated radiotherapy (IMRT) and to compare it to the dose delivered by a conventional three-field (3F) technique... " [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Radiotherapy and Oncology.
 
 
Dosimetric guidance on using brachytherapy (low-dose-rate or high-dose-rate) to offset a flawed permanent prostate implant.
 
To provide practical dosimetric advice on mending suboptimal permanent implants using low-dose-rate (LDR) or high-dose-rate (HDR) brachytherapy. The problem is to make the combination of the two radiation treatments (the initial, flawed one and the compensatory boost) clinically isoeffective with the planned dose... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Brachytherapy.
 
 
Helical tomotherapy for locoregional irradiation including the internal mammary chain in left-sided breast cancer: Dosimetric evaluation.
 
To compare a standard 3- or 4-field technique to intensity modulated radiotherapy with helical tomotherapy (IMRT-HT) in the planning of locoregional breast radiation including the internal mammary chain (IMC)... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Radiotherapy and Oncology.
 
 
Treatment vault shielding for a flattening filter-free medical linear accelerator.
 
The requirements for shielding a treatment vault with a Varian Clinac 2100 medical linear accelerator operated both with and without the flattening filter were assessed... [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: Physics in Medicine and Biology.
 
 
Radiotherapy Risk Profile - Technical Manual.
 
"“Radiotherapy is widely known to be one of the safest areas of modern medicine, yet, for some, this essential treatment can bring harm, personal tragedy and even death”..." [+ leia mais]
Colaborador: Camila Pessoa de Sales.
Fonte: World Health Organization.
 
 
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