AIMC Topic: Radiotherapy Dosage

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Autodelineation of cervical cancers using multiparametric magnetic resonance imaging and machine learning.

Acta oncologica (Stockholm, Sweden) Feb 8, 2017
BACKGROUND: Tumour delineation is a challenging, time-consuming and complex part of radiotherapy planning. In this study, an automatic method for delineating locally advanced cervical cancers was developed using a machine learning approach.
Humans Machine Learning Algorithms Magnetic Resonance Imaging Organs at Risk Radiotherapy Planning, Computer-Assisted Radiotherapy Dosage Female Uterine Cervical Neoplasms Image Processing, Computer-Assisted Contrast Media
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Photon Optimizer (PO) prevails over Progressive Resolution Optimizer (PRO) for VMAT planning with or without knowledge-based solution.

Journal of applied clinical medical physics Jan 24, 2017
The enhanced dosimetric performance of knowledge-based volumetric modulated arc therapy (VMAT) planning might be jointly contributed by the patient-specific optimization objectives, as estimated by the RapidPlan model, and by the potentially improved...
Photons Radiotherapy Planning, Computer-Assisted Radiotherapy Dosage Radiotherapy, Intensity-Modulated Humans Algorithms Rectal Neoplasms Knowledge Bases
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Utilization of a 3D printer to fabricate boluses used for electron therapy of skin lesions of the eye canthi.

Journal of applied clinical medical physics Nov 30, 2016
This work describes the use of 3D printing technology to create individualized boluses for patients treated with electron beam therapy for skin lesions of the eye canthi. It aimed to demonstrate the effectiveness of 3D-printed over manually fabricate...
Eye Diseases Humans Printing, Three-Dimensional Carcinoma, Basal Cell Skin Diseases Radiotherapy Dosage Carcinoma, Squamous Cell Electrons Quality Assurance, Health Care
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Dosimetric Implications of Residual Tracking Errors During Robotic SBRT of Liver Metastases.

International journal of radiation oncology, biology, physics Nov 27, 2016
PURPOSE: Although the metric precision of robotic stereotactic body radiation therapy in the presence of breathing motion is widely known, we investigated the dosimetric implications of breathing phase-related residual tracking errors.
Humans Tomography, X-Ray Computed Reproducibility of Results Radiotherapy Dosage Sensitivity and Specificity Robotics Liver Neoplasms Radiosurgery Motion Treatment Outcome Respiratory Mechanics Radiotherapy Planning, Computer-Assisted Radiotherapy, Image-Guided Tumor Burden
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Evaluation of a Machine-Learning Algorithm for Treatment Planning in Prostate Low-Dose-Rate Brachytherapy.

International journal of radiation oncology, biology, physics Nov 27, 2016
PURPOSE: This work presents the application of a machine learning (ML) algorithm to automatically generate high-quality, prostate low-dose-rate (LDR) brachytherapy treatment plans. The ML algorithm can mimic characteristics of preoperative treatment ...
Dose-Response Relationship, Radiation Radiometry Humans Radiotherapy, Image-Guided Machine Learning Prostatic Neoplasms Reproducibility of Results Algorithms Radiotherapy Planning, Computer-Assisted Sensitivity and Specificity Brachytherapy Male Radiotherapy Dosage Treatment Outcome
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Exploring Value From the Patient's Perspective Between Modern Radiation Therapy Modalities for Localized Prostate Cancer.

International journal of radiation oncology, biology, physics Nov 24, 2016
PURPOSE: Patients' perspectives on their treatment experiences have not been compared between modern radiation modalities for localized prostate cancer. We evaluated treatment regret and patients' perceptions of their treatment experiences to better ...
Male Middle Aged Surveys and Questionnaires Follow-Up Studies Emotions Decision Making Radiotherapy, Intensity-Modulated Prostatic Neoplasms Watchful Waiting Radiosurgery Patient Satisfaction Humans Brachytherapy Aged Radiotherapy Dosage Aged, 80 and over Adult
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Receiver operating curves and dose-volume analysis of late toxicity with stereotactic body radiation therapy for prostate cancer.

Practical radiation oncology Jul 17, 2016
PURPOSE: The purpose of this study was to evaluate a receiver operating characteristic (ROC) curve method to determine dose thresholds with late genitourinary (GU) toxicity after stereotactic body radiation therapy for prostate cancer.
Urogenital System Prostatic Neoplasms Radiotherapy Dosage Radiosurgery Humans Aged Retrospective Studies Male Middle Aged ROC Curve
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Clinical results of mean GTV dose optimized robotic guided SBRT for liver metastases.

Radiation oncology (London, England) May 28, 2016
BACKGROUND: We retrospectively evaluated the efficacy and toxicity of gross tumor volume (GTV) mean-dose-optimized and real-time motion-compensated robotic stereotactic body radiation therapy (SBRT) in the treatment of liver metastases.
Male Middle Aged Liver Neoplasms Follow-Up Studies Aged, 80 and over Adult Survival Rate Dose Fractionation, Radiation Robotics Surgery, Computer-Assisted Radiotherapy Dosage Radiosurgery Humans Prognosis Retrospective Studies Female Aged
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Normal tissue complication probability (NTCP) modelling using spatial dose metrics and machine learning methods for severe acute oral mucositis resulting from head and neck radiotherapy.

Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology May 27, 2016
BACKGROUND AND PURPOSE: Severe acute mucositis commonly results from head and neck (chemo)radiotherapy. A predictive model of mucositis could guide clinical decision-making and inform treatment planning. We aimed to generate such a model using spatia...
Radiotherapy Dosage Radiation Injuries Stomatitis Models, Theoretical Humans Head and Neck Neoplasms Machine Learning Female Acute Disease Clinical Decision-Making Probability Male Logistic Models
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High resolution ion chamber array delivery quality assurance for robotic radiosurgery: Commissioning and validation.

Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) May 27, 2016
PURPOSE: High precision radiosurgery demands comprehensive delivery-quality-assurance techniques. The use of a liquid-filled ion-chamber-array for robotic-radiosurgery delivery-quality-assurance was investigated and validated using several test scena...
Radiotherapy Planning, Computer-Assisted Quality Assurance, Health Care Humans Radiotherapy Dosage Robotics Radiosurgery Radiometry
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