AIMC Topic: Radiotherapy Dosage

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Clinical implementation of a knowledge based planning tool for prostate VMAT.

Radiation oncology (London, England) May 8, 2017
BACKGROUND: A knowledge based planning tool has been developed and implemented for prostate VMAT radiotherapy plans providing a target average rectum dose value based on previously achievable values for similar rectum/PTV overlap. The purpose of this...
Humans Knowledge Bases Organs at Risk Radiotherapy Planning, Computer-Assisted Radiotherapy Dosage Radiotherapy, Intensity-Modulated Algorithms Male Prostatic Neoplasms Rectum
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Vector-model-supported approach in prostate plan optimization.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists Mar 18, 2017
Lengthy time consumed in traditional manual plan optimization can limit the use of step-and-shoot intensity-modulated radiotherapy/volumetric-modulated radiotherapy (S&S IMRT/VMAT). A vector model base, retrieving similar radiotherapy cases, was deve...
Radiometry Sensitivity and Specificity Male Decision Support Systems, Clinical Humans Prostatic Neoplasms Radiotherapy Planning, Computer-Assisted Computer Simulation Models, Biological Pattern Recognition, Automated Reproducibility of Results Radiotherapy Dosage Support Vector Machine
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Vector-model-supported optimization in volumetric-modulated arc stereotactic radiotherapy planning for brain metastasis.

Medical dosimetry : official journal of the American Association of Medical Dosimetrists Mar 18, 2017
Long planning time in volumetric-modulated arc stereotactic radiotherapy (VMA-SRT) cases can limit its clinical efficiency and use. A vector model could retrieve previously successful radiotherapy cases that share various common anatomic features wit...
Cranial Irradiation Pattern Recognition, Automated Radiotherapy Dosage Radiosurgery Radiometry Sensitivity and Specificity Brain Neoplasms Male Middle Aged Decision Support Systems, Clinical Support Vector Machine Models, Biological Radiotherapy Planning, Computer-Assisted Reproducibility of Results Aged Aged, 80 and over Adult Humans Computer Simulation Female
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Early prediction of radiotherapy-induced parotid shrinkage and toxicity based on CT radiomics and fuzzy classification.

Artificial intelligence in medicine Mar 18, 2017
MOTIVATION: Patients under radiotherapy for head-and-neck cancer often suffer of long-term xerostomia, and/or consistent shrinkage of parotid glands. In order to avoid these drawbacks, adaptive therapy can be planned for patients at risk, if the pred...
Radiation Exposure Cranial Irradiation Xerostomia Parotid Gland Early Diagnosis Machine Learning Predictive Value of Tests Radiotherapy Dosage Humans Head and Neck Neoplasms Tomography, X-Ray Computed Radiation Injuries Bayes Theorem Fuzzy Logic Risk Factors Radiographic Image Interpretation, Computer-Assisted Time Factors
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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 Female Organs at Risk Radiotherapy Planning, Computer-Assisted Radiotherapy Dosage Uterine Cervical Neoplasms Image Processing, Computer-Assisted Contrast Media Magnetic Resonance Imaging
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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...
Humans Algorithms Rectal Neoplasms Photons Knowledge Bases Radiotherapy Planning, Computer-Assisted Radiotherapy Dosage Radiotherapy, Intensity-Modulated
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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...
Radiotherapy Dosage Skin Diseases Humans Electrons Carcinoma, Basal Cell Quality Assurance, Health Care Carcinoma, Squamous Cell Eye Diseases Printing, Three-Dimensional
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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.
Tomography, X-Ray Computed Reproducibility of Results Sensitivity and Specificity Liver Neoplasms Treatment Outcome Robotics Motion Radiotherapy Planning, Computer-Assisted Humans Radiotherapy, Image-Guided Tumor Burden Radiotherapy Dosage Radiosurgery Respiratory Mechanics
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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 Radiotherapy, Image-Guided Humans Prostatic Neoplasms Reproducibility of Results Machine Learning Radiotherapy Planning, Computer-Assisted Sensitivity and Specificity Algorithms 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 ...
Radiotherapy Dosage Radiotherapy, Intensity-Modulated Radiosurgery Prostatic Neoplasms Watchful Waiting Patient Satisfaction Humans Brachytherapy Middle Aged Surveys and Questionnaires Follow-Up Studies Emotions Aged Decision Making Aged, 80 and over Adult Male
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