AIMC Journal:
Medical physics
Showing 741 to 750 of 759 articles
Body-mounted robotic instrument guide for image-guided cryotherapy of renal cancer.
Medical physics
Feb 1, 2016
PURPOSE: Image-guided cryotherapy of renal cancer is an emerging alternative to surgical nephrectomy, particularly for those who cannot sustain the physical burden of surgery. It is well known that the outcome of this therapy depends on the accurate ...
Dosimetric and delivery efficiency investigation for treating hepatic lesions with a MLC-equipped robotic radiosurgery-radiotherapy combined system.
Medical physics
Feb 1, 2016
PURPOSE: The CyberKnife M6 (CK-M6) Series introduced a multileaf collimator (MLC) for extending its capability from stereotactic radiosurgery/stereotactic radiotherapy (SBRT) to conventionally fractionated radiotherapy. This work is to investigate th...
Automatic anatomy recognition in whole-body PET/CT images.
Medical physics
Jan 1, 2016
PURPOSE: Whole-body positron emission tomography/computed tomography (PET/CT) has become a standard method of imaging patients with various disease conditions, especially cancer. Body-wide accurate quantification of disease burden in PET/CT images is...
Medical image segmentation via atlases and fuzzy object models: Improving efficacy through optimum object search and fewer models.
Medical physics
Jan 1, 2016
PURPOSE: Statistical object shape models (SOSMs), known as probabilistic atlases, are popular in medical image segmentation. They register an image into the atlas coordinate system, such that a desired object can be delineated from the constraints of...
Knowledge-based prediction of three-dimensional dose distributions for external beam radiotherapy.
Medical physics
Jan 1, 2016
PURPOSE: To demonstrate knowledge-based 3D dose prediction for external beam radiotherapy.
Enhancing atlas based segmentation with multiclass linear classifiers.
Medical physics
Dec 1, 2015
PURPOSE: To present a method to enrich atlases for atlas based segmentation. Such enriched atlases can then be used as a single atlas or within a multiatlas framework.
Validation of a novel robot-assisted 3DUS system for real-time planning and guidance of breast interstitial HDR brachytherapy.
Medical physics
Dec 1, 2015
PURPOSE: In current clinical practice, there is no integrated 3D ultrasound (3DUS) guidance system clinically available for breast brachytherapy. In this study, the authors present a novel robot-assisted 3DUS system for real-time planning and guidanc...
Phantoms, Imaging
Sepharose
Breast Neoplasms
Radiotherapy Planning, Computer-Assisted
Ultrasonography, Mammary
Brachytherapy
Imaging, Three-Dimensional
Breast
Radiotherapy Dosage
Magnetic Resonance Imaging
Feasibility Studies
Humans
Robotics
Muscle, Skeletal
Algorithms
Skin
Mammography
Tomography, X-Ray Computed
Computational and human observer image quality evaluation of low dose, knowledge-based CT iterative reconstruction.
Medical physics
Oct 1, 2015
PURPOSE: Aims in this study are to (1) develop a computational model observer which reliably tracks the detectability of human observers in low dose computed tomography (CT) images reconstructed with knowledge-based iterative reconstruction (IMR™, Ph...
SPEQTACLE: An automated generalized fuzzy C-means algorithm for tumor delineation in PET.
Medical physics
Oct 1, 2015
PURPOSE: Accurate tumor delineation in positron emission tomography (PET) images is crucial in oncology. Although recent methods achieved good results, there is still room for improvement regarding tumors with complex shapes, low signal-to-noise rati...
Quantitative analysis of breast echotexture patterns in automated breast ultrasound images.
Medical physics
Aug 1, 2015
PURPOSE: Breast tissue composition is considered to be associated with breast cancer risk. This study aimed to develop a computer-aided classification (CAC) system to automatically classify echotexture patterns as heterogeneous or homogeneous using a...
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