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Showing 1 to 20 of 38 for “"DICOM"”.
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Electrocardiography in DICOM
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Design and prototype of an object-relational database for medical imaged
… medical information objects as defined in the DICOM (Digital Imaging and Communications in Medicine) standard. The schema incorporates an extensible inheritance hierarchy, while the API includes encapsulation of routines and data structures built specifically for DICOM information. The …
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Multi-visualization and hybrid segmentation approaches within telemedicine framework
… storage standard in telemedicine, for example DICOM, which is the predominant standard for the storage and communication of medical images. I propose a novel 3D image data storage method, which was lacking in current DICOM standard. I also created a mechanism to make use of the non-standard or …
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Infrastructure logicielle visant à protéger la confidentialité du patient dans les images médicales utilisées en recherche
… images médicales respectent souvent le standard DICOM, nous proposons une technique d’anonymisation qui suit les recommandations de DICOM.
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Secondary Monitor Unit Checks for VMAT Using Parallelized Monte Carlo Simulations
… plan created for a Varian Trilogy linac, DICOM information was exported from Eclipse. An open-source platform was used to generate input files for dose calculations using the EGSnrc and DOSXYZnrc framework. The full VMAT plan simulation employed 107 histories, and was parallelized to run …
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Advancement of A 3D Computational Phantom and Its Age Scaling Methodologies For Retrospective Dose Reconstruction Studies
… our phantom and its age scaling functions in DICOM format and determine the feasibility of applying our ASFs to accurately scale the whole-body CT-based anatomies.</p> <p>In the implementation study, we developed Python scripts that model the phantom and ASFs in a treatment planning system …
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CORRELATION OF MONSON’S SPHERE AND SOME OTHER DENTOFACIAL VARIABLES TO TEMPOROMANDIBULAR JOINTS (TMJs) IN THE CHINESE POPULATION
… Materials and methods: CT (Computed Tomography) DICOM (Digital Imaging and Communications in Medicine) data of 54 Chinese patients were collected, including 43 females and 11 males aged from 11 to 49 years old. The coordinates of the dental, craniofacial and temporomandibular landmarks were …
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Defining Acceptable Colour Tolerances for Identity Branding in Natural Viewing Conditions
… for Self-Luminous Devices, to compare DICOM GSDF with Whittle’s log brightness. Whittle’s function was found to outperform DICOM GSDF. The colour difference formulas used in this research were tested, using near neutral samples 2 judged by observers using estimated magnitude …
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Accuracy of Volumetric Analysis Software Packages in Assessment of Tooth Volume Using CBCT
… digital models were obtained from the DICOM image cone beam computed tomography files using segmentation software packages (Anatomage, Mimics, and Amira) and volumes were calculated for each of the segmented teeth. The teeth were then scanned using a 3-shape digital scanner. The …
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A Volume Rendering Engine for Desktops, Laptops, Mobile Devices and Immersive Virtual Reality Systems using GPU-Based Volume Raycasting
… critical to the volume rendering pipeline. The DICOM Toolkit (DCMTK) is a collection of libraries and applications implementing a large majority of the DICOM standard capable of examining, constructing and converting DICOM image files. Finally, VR Juggler is a cross-platform, open source virtual …
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Modelling image quality for automotive display technologies
… are derived from display luminance via the DICOM just noticeable difference (JND) scale. Colourfulness is scaled based colour gamut in the CIE1931 chromaticity diagram. It was shown that image quality rating rises with growing perceived contrast; the limiting factors are glare and perceived …
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Correlation of Tooth Length Measurements made on CBCT and 3T MR Images
… in an attempt to improve visualization of teeth. DICOM formatted images from each of the three scans for each subject were oriented in all three planes of space. Slices of 4 mm thickness were made through all permanent teeth. Tooth length measurements were made from the slices. Results. The …
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Novel Approach to Assess Periodontal Disease Severity Using Volumetric Analysis
… of 70 random patients were obtained from</p> <p>DICOM CBCT files using volumetric software, InVivoDental (Anatomage, San Jose,</p> <p>CA). One central incisor of average root length was selected per patient and total length</p> <p>(L1) and the apical half of the root (L2) were measured. …
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Handedness and the geometry and hemodynamics of the branches of the aortic arch
… angiography scans were obtained using Radiant DICOM Viewer (64-bit) imaging software. Selected geometric parameters of the vessels measured included minimum, mean, and maximum diameters, length, angle and calculated resistance to blood flow. Cases of unconventional branching patterns were …
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Monte Carlo simulations, in vitro and in vivo experimental verifications for preclinical studies
… within the simulation framework through its DICOM micro-CT images. - The role of an innovative radiosensitizing molecule in Glioblastoma tumor protontherapy quantifying the variation in survival response and the dose modifying factor investigating also the gene expression modification induced …
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Determining the partial volumes of brain tissue from spectroscopy voxels
… Kliinisen käytön mahdollisuus vaatisi ohjelmalta DICOM-standardi tukea.
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Comparison of Tooth Length Measurements Made on CBCT and 3T MR Images
… ms) and isotropic resolution of 1.0x1.0x1.0 mm. DICOM formatted images from each scan were oriented in all three planes of space and 4 mm thick slices were made through the long axis of all permanent teeth. Tooth length measurements were determined from the slices (336 tooth length measurements) …
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A 3D Radiographic Evaluation of Crestal Bone Changes Around Immediately Loaded Endosseous Implants
… bone model obtained from the patient’s DICOM files was used to fabricate the bone reduction guide and surgical guide.</p> <p>This was a prospective non-randomized controlled clinical study in which the subjects were recruited by strict inclusion and exclusion criteria. Seventeen subjects …
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Cbct evaluation of condylar changes in children with unilateral posterior crossbites with a functional shift
… position within the TMJ. Methodology: Sixty DICOM images were reviewed from the private database of Thomas Shipley D.M.D., M.S. of Peoria, AZ. Thirty one subjects were selected for the control group and twenty nine subjects were selected based on a unilateral posterior crossbite with a …
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