AIMC Topic: Phantoms, Imaging

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Deep reconstruction model for dynamic PET images.

PloS one Sep 21, 2017
Accurate and robust tomographic reconstruction from dynamic positron emission tomography (PET) acquired data is a difficult problem. Conventional methods, such as the maximum likelihood expectation maximization (MLEM) algorithm for reconstructing the...
Monte Carlo Method Computer Simulation Whole Body Imaging Phantoms, Imaging Models, Neurological Humans Models, Anatomic Positron-Emission Tomography Machine Learning Brain
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Unsupervised Segmentation of 5D Hyperpolarized Carbon-13 MRI Data Using a Fuzzy Markov Random Field Model.

IEEE transactions on medical imaging Sep 4, 2017
Hyperpolarized MRI with C-labelled compounds is an emerging clinical technique allowing in vivo metabolic processes to be characterized non-invasively. Accurate quantification of C data, both for clinical and research purposes, typically relies on th...
Contrast Media Magnetic Resonance Imaging Fuzzy Logic Computer Simulation Animals Algorithms Rats Image Interpretation, Computer-Assisted Neoplasms, Experimental Phantoms, Imaging Models, Statistical Carbon Isotopes Unsupervised Machine Learning Markov Chains
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Quantitative Testing of fMRI-Compatibility of an Electrically Active Mechatronic Device for Robot-Assisted Sensorimotor Protocols.

IEEE transactions on bio-medical engineering Aug 17, 2017
OBJECTIVE: To develop a quantitative set of methods for testing the functional magnetic resonance imaging (fMRI) compatibility of an electrically-active mechatronic device developed to support sensorimotor protocols during fMRI.
Task Performance and Analysis Motor Skills Phantoms, Imaging Magnetic Resonance Imaging Robotics Signal-To-Noise Ratio Humans Brain
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Fuzzy Object Skeletonization: Theory, Algorithms, and Applications.

IEEE transactions on visualization and computer graphics Aug 10, 2017
Skeletonization offers a compact representation of an object while preserving important topological and geometrical features. Literature on skeletonization of binary objects is quite mature. However, challenges involved with skeletonization of fuzzy ...
Tomography, X-Ray Computed Animals Fuzzy Logic Models, Statistical Humans Algorithms Computer Simulation Models, Anatomic X-Ray Microtomography Bone and Bones Phantoms, Imaging Computer Graphics
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CyberKnife with integrated CT-on-rails: System description and first clinical application for pancreas SBRT.

Medical physics Aug 2, 2017
PURPOSE: This article reports on the integration of a sliding-gantry CT-on-rails with a robotic linear accelerator.
Tomography, X-Ray Computed Robotics Germany Particle Accelerators Radiosurgery Phantoms, Imaging Humans
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Gaussian process classification of superparamagnetic relaxometry data: Phantom study.

Artificial intelligence in medicine Jul 24, 2017
MOTIVATION: Superparamagnetic relaxometry (SPMR) is an emerging technology that holds potential for use in early cancer detection. Measurement of the magnetic field after the excitation of cancer-bound superparamagnetic iron oxide nanoparticles (SPIO...
Numerical Analysis, Computer-Assisted Neoplasms, Experimental Phantoms, Imaging Normal Distribution Machine Learning Contrast Media Animals Magnetic Resonance Imaging Signal-To-Noise Ratio Image Processing, Computer-Assisted Early Detection of Cancer Predictive Value of Tests Magnetics Mice Algorithms Magnetite Nanoparticles Computer Simulation Reproducibility of Results
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High-accuracy drilling with an image guided light weight robot: autonomous versus intuitive feed control.

International journal of computer assisted radiology and surgery Jul 13, 2017
PURPOSE: Assistance of robotic systems in the operating room promises higher accuracy and, hence, demanding surgical interventions become realisable (e.g. the direct cochlear access). Additionally, an intuitive user interface is crucial for the use o...
Robotics Surgery, Computer-Assisted Phantoms, Imaging Cochlea Temporal Bone Humans Tomography, X-Ray Computed
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Computed tomography (CT)-compatible remote center of motion needle steering robot: Fusing CT images and electromagnetic sensor data.

Medical engineering & physics May 13, 2017
Lung cancer is the most common cause of cancer-related death, and early detection can reduce the mortality rate. Patients with lung nodules greater than 10 mm usually undergo a computed tomography (CT)-guided biopsy. However, aligning the needle with...
Needles Image-Guided Biopsy Biopsy, Needle Movement Electromagnetic Phenomena Phantoms, Imaging Robotics Equipment Design Signal-To-Noise Ratio Tomography, X-Ray Computed Image Processing, Computer-Assisted Lung Neoplasms
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Force-assisted ultrasound imaging system through dual force sensing and admittance robot control.

International journal of computer assisted radiology and surgery Mar 25, 2017
PURPOSE: Ultrasound imaging has been a gold standard for clinical diagnoses due to its unique advantages compared to other imaging modalities including: low cost, noninvasiveness, and safeness to the human body. However, the ultrasound scanning proce...
Robotics Motion Humans Phantoms, Imaging Ultrasonography
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Feasibility of robotic stereotactic body radiotherapy of lung tumors with kilovoltage x-ray beams.

Medical physics Mar 21, 2017
PURPOSE: Robotic Stereotactic body radiation therapy (SBRT) for lung tumors is treatment modality that, for cases of inoperable lung tumors, has shown excellent treatment outcomes. The typical photon energy when delivering this type of treatments is ...
Humans Female Male Radiosurgery Lung Neoplasms Phantoms, Imaging Monte Carlo Method Robotics X-Rays Feasibility Studies
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