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Showing 1 to 20 of 106 for “"thorax"”.
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Reproduzierbarkeit der Risikoorgandosis bei der stereotaktischen Bestrahlung in Thorax, Abdomen und Becken
Die vorliegende Arbeit beschäftigte sich mit der Reproduzierbarkeit und möglichen relevanten Dosisänderungen in Bezug auf anliegende Risikoorgane bei der Körpersterotaxie in Lunge und Abdomen. Bei der Planung sowie vor jeder Bestrahlung wurden 56 Patienten in einem stereotaktischem Körperrahmen …
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The Role of Local Material Properties in Modeling Fracture Tolerance of the Human Thorax
This dissertation presents the results of dynamic material tests and computational modeling exploring the effects of regional rib mechanical properties on thoracic fracture patterns. Test coupon modeling was used to verify the test setup. These material properties were incorporated into a human …
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Computed tomography of the thorax and abdomen of the clinically normal common marmoset (Callithrix jacchus)
… providing simultaneous information about the thorax and the skeletal system; however its limitations must be considered. In cases where further work-up would be required or in certain clinical presentations, CT should be recommended and should always be combined with i.v. contrast.
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Modification and Implementation of The Rpc Heterogeneous Thorax Phantom For Verification of Proton Therapy Treatment Procedures
… hypothesized that the existing RPC heterogeneous thorax phantom can be modified to assess lung tumor proton beam therapy procedures involving patient simulation, treatment planning, and treatment delivery, and could confirm agreement between the measured dose and calculated dose within 5%/3mm with …
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Development and Implementation of A Dynamic Heterogeneous Proton Equivalent Anthropomorphic Thorax Phantom For The Assessment of Scanned Proton Beam Therapy
… HETEROGENEOUS PROTON EQUIVALENT ANTHROPOMORPHIC THORAX PHANTOM FOR THE ASSESSMENT OF SCANNED PROTON BEAM THERAPY</p> <p>by</p> <p><em>James Leroy Neihart, B.S.</em></p> <p>APPROVED:</p> <p><br />______________________________<br />David Followill, Ph.D.<br /><br /></p> <p><br …
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A Preliminary Study of the Instantaneous Forces on the Thorax of A Sphingid Moth and the Desert Locust Flying in A Wind Tunnel
Made available in DSpace on 2014-12-11T00:00:13Z (GMT). No. of bitstreams: 1 7207107.pdf: 2936072 bytes, checksum: 81748f6d11deda6d821c045e3923f8c7 (MD5) Previous issue date: 1971
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Development and Implementation of A Homogeneous and A Heterogeneous Anthropomorphic End to End Quality Assurance Audit System Phantom For Magnetic Resonance Guided Radiotherapy Modalities Ranging From 0.35 T to 1.50 T
… of this work was to create an anthropomorphic thorax and a head and neck (H&N) phantom for MRgRT systems with magnetic fields ranging from 0.35T to 1.5T.</p> <p><strong>Methods: </strong>Over 80 synthetic materials were examined as potential materials used to construct the MRgRT thorax and H&N …
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''ARROWMAN'' : an analysis of a possible medieval cold case from Poulton, Cheshire
A bodkin arrowhead was recovered from within the thorax of a human skeleton (SK535) from the medieval cemetery at Poulton, Cheshire. This skeleton was a single burial with an east-west orientation. The skeleton had an unusual burial position with the right arm flexed at the elbow and the …
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Influence of Obstructive Sleep Apnea (OSA) on Rostral Fluid Shift, and the Pathophysiology on Asthma
… indicated that in asthma, fluid shift into the thorax induced by lower body positive pressure (LBPP) while supine provokes an increase in small airway resistance. However, whether fluid redistribution links OSA with asthma remains unknown. This thesis aimed to investigate the role of fluid …
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Microstructural and Mechanical Properties of Human Ribs
… of injury from an automobile collision to the thorax requires knowledge of the properties of the skeletal components that comprise the thorax. The purpose of this study was to investigate the strength of human ribs subjected to dynamic three-point bending. A total of four human cadavers were …
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Individuelle Anpassung des Röhrenstroms zur Dosisreduktion bei CT-Untersuchungen
… anatomische Regionen (Schädel, Hals, Thorax und Abdomen) nötig ist um diagnostisch aussagekräftige CT-Aufnahmen zu erzeugen. In diese prospektive Studie wurden 262 erwachsene Patienten aufgenommen. Ausgehend von seit Jahren bewährten Standardparametern wurde für jede anatomische Region …
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Size Correlations between Sucking Lice and Their Hosts Including a Test of Harrison's Rule
… host body mass and length. However, male louse thorax width was negatively correlated to host body length. Within the family Hoplopleuridae, both male and female louse thorax width were significantly correlated with host body mass and length, as well as, second tarsal segment length and host …
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ΜΕΛΕΤΗ ΚΙΝΗΜΑΤΙΚΩΝ ΠΑΡΑΜΕΤΡΩΝ ΤΗΣ ΒΑΔΙΣΗΣ
… ABOUT THE VERTICAL, THE TRANSVERSE ROTATION OF THORAX AND PELVIS AND ALSO ROTATION OF THORAX AND PELVIS ABOUT THE X-AXES. WHEREASTHE ANALYSIS OF THE KINEMATICAL PARAMETERS SHOWED COMMON QUALITATIVE FEATURES FOR ALL THE SUBJECTS, THE QUANTITATIVE ANALYSIS REVEALED A WIDE RANGE OF VALUES. FOR THE …
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The use of Röntgen rays in intra-thoracic disease : with notes and radiographs of a series of cases
… special,, points relating to radiography of the thorax.
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Acoustic Method for Detection Large Pneumothoraxes in the Out-of-Hospital Environment
Pneumothoraxes and hemothoraxes present a medical emergency that can easily be life threatening. However, improper and unnecessarily aggressive treatment is not uncommon and poses significant risk to patients. Much of this is a result of poor diagnostic aids to assist in the detection of …
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A phantom based evaluation on the effects of patient breathing motion on Stereotactic Body Radiotherapy treatment volumes
… shape and densities of various organs in the thorax, as seen on CT scan data. Two treatment planning systems (Monaco, (Elekta) and Eclipse (Varian)) were used to determine the dosimetric characteristics of the materials. This was compared to actual dose as delivered by a linear accelerator …
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Three dimensional modelling of Electrical Impedance Tomography
… cylinder (which approximately models the human thorax) on which two electrodes have been placed, is derived. It will be shown that the analytical solution has two different forms. Results will be presented detailing the convergence performance of the two different forms as well as comparisons …
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An investigation into the limitations of myocardial perfusion imaging
… that the different anatomical parts of the thorax have on the attenuation defects caused. A further aspect investigated was the impact that self-absorption in the heart has on these defects. The variability of these defects were further investigated by altering the position and orientation …
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Differences in ball flight parameters and in kinematics between two golf swing styles
… path (0.13 ± 4.3° vs 3.53 ± 4.33°), as well as a thorax that was more rotated to face away from target at address (4.71 ± 4.61° vs -18.66 ± 7.31°) and impact (9.72 ± 9.09° vs -3.15 ± 7.93°), and had less lead side lateral flexion at the top of the backswing 32.71 ± 5.46° vs 24.12 ± 5.53°). Three …
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