AIMC Journal:
Medical physics

Showing 621 to 630 of 759 articles

Highly accelerated, model-free diffusion tensor MRI reconstruction using neural networks.

Medical physics Feb 14, 2019
PURPOSE: The purpose of this study was to develop a neural network that accurately performs diffusion tensor imaging (DTI) reconstruction from highly accelerated scans.
Humans Diffusion Magnetic Resonance Imaging Neural Networks, Computer Aged Algorithms Male Glioblastoma ROC Curve Healthy Volunteers Diffusion Tensor Imaging Prospective Studies Retrospective Studies Female
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An investigation of the effect of fat suppression and dimensionality on the accuracy of breast MRI segmentation using U-nets.

Medical physics Feb 4, 2019
PURPOSE: Accurate segmentation of the breast is required for breast density estimation and the assessment of background parenchymal enhancement, both of which have been shown to be related to breast cancer risk. The MRI breast segmentation task is ch...
Neural Networks, Computer Algorithms Female Breast Neoplasms Humans Image Processing, Computer-Assisted Magnetic Resonance Imaging Adipose Tissue Breast Breast Density
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Pulmonary nodule segmentation with CT sample synthesis using adversarial networks.

Medical physics Jan 31, 2019
PURPOSE: Segmentation of pulmonary nodules is critical for the analysis of nodules and lung cancer diagnosis. We present a novel framework of segmentation for various types of nodules using convolutional neural networks (CNNs).
Diagnosis, Computer-Assisted Image Processing, Computer-Assisted Multiple Pulmonary Nodules Neural Networks, Computer Humans Databases, Factual Tomography, X-Ray Computed
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Prediction of skin dose in low-kV intraoperative radiotherapy using machine learning models trained on results of in vivo dosimetry.

Medical physics Jan 25, 2019
PURPOSE: The purpose of this study was to implement a machine learning model to predict skin dose from targeted intraoperative (TARGIT) treatment resulting in timely adoption of strategies to limit excessive skin dose.
Radiotherapy Dosage Aged, 80 and over Intraoperative Care Adult Mastectomy, Segmental Breast Neoplasms Skin In Vivo Dosimetry Humans Machine Learning Middle Aged Female Neural Networks, Computer Models, Statistical Organs at Risk Aged
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Prostate cancer classification with multiparametric MRI transfer learning model.

Medical physics Jan 18, 2019
PURPOSE: Prostate cancer classification has a significant impact on the prognosis and treatment planning of patients. Currently, this classification is based on the Gleason score analysis of biopsied tissues, which is neither accurate nor risk free. ...
Prostatic Neoplasms Male Image Processing, Computer-Assisted Humans Magnetic Resonance Imaging Machine Learning
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Breast mass classification in sonography with transfer learning using a deep convolutional neural network and color conversion.

Medical physics Jan 16, 2019
PURPOSE: We propose a deep learning-based approach to breast mass classification in sonography and compare it with the assessment of four experienced radiologists employing breast imaging reporting and data system 4th edition lexicon and assessment p...
Breast Neoplasms Deep Learning Adolescent Ultrasonography ROC Curve Image Processing, Computer-Assisted Female Young Adult Adult Humans Color
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Self-prior image-guided MRI reconstruction with dictionary learning.

Medical physics Jan 7, 2019
PURPOSE: A novel method, named self-prior image-guided MRI reconstruction with dictionary learning (SPIDLE), is developed to improve the performance of MR imaging with high acceleration rates. "self-prior" means that the prior image is obtained from ...
Machine Learning Image Processing, Computer-Assisted Magnetic Resonance Imaging
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Simultaneous cosegmentation of tumors in PET-CT images using deep fully convolutional networks.

Medical physics Jan 4, 2019
PURPOSE: To investigate the use and efficiency of 3-D deep learning, fully convolutional networks (DFCN) for simultaneous tumor cosegmentation on dual-modality nonsmall cell lung cancer (NSCLC) and positron emission tomography (PET)-computed tomograp...
Carcinoma, Non-Small-Cell Lung Positron Emission Tomography Computed Tomography Whole Body Imaging Time Factors Image Processing, Computer-Assisted Lung Neoplasms Humans Neural Networks, Computer
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Deep-learning convolutional neural network: Inner and outer bladder wall segmentation in CT urography.

Medical physics Jan 4, 2019
PURPOSE: We are developing a computerized segmentation tool for the inner and outer bladder wall as a part of an image analysis pipeline for CT urography (CTU).
Humans Tomography, X-Ray Computed Urinary Bladder Urography Deep Learning Image Processing, Computer-Assisted Radiation Dosage
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Dosimetric features-driven machine learning model for DVH prediction in VMAT treatment planning.

Medical physics Jan 2, 2019
PURPOSE: Few features characterizing the dosimetric properties of the patients are included in currently available dose-volume histogram (DVH) prediction models, making it intractable to build a correlative relationship between the input and output p...
Radiometry Radiotherapy Planning, Computer-Assisted Radiotherapy, Intensity-Modulated Machine Learning Organs at Risk Quality Control
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