Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Prone Position"”.
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The design, construction and testing of a hermetically sealed breast platfrom for dual-modality mammography
… automated mode, the patient typically lies in a prone position. The disadvantages of this approach include: variable image quality; poor co-registration of X-ray and ultrasound images; and increased costs and patient anxiety. In response to these shortcomings, the Aceso full-field digital …
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Overweight in infants increases the chance of having a gross motor developmental delay at six months
… motor development varied according to sleep position. Eighteen mother-infant pairs participated. Motor development was assessed using the Alberta Infant Motor Scale (AIMS). Sleeping position was determined by maternal report based on the position in which the infant awoke. At six months, …
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Mechanics of Righting Behavior in the Tarantula (Theraphosidae)
… each species used to rotate the body into the prone position. In all species, the third and fourth pair of legs are initially used to lever the cephalothorax off of the substrate. Aphonopelma rotates the prosoma primarily with the tarsus of the right second and third legs, while G. rosea uses …
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The effect of nursing interventions on thermoregulation and neuromotor function in very low birthweight infants
The prone position is used routinely in neonatal intensive care units worldwide in the nursing of preterm infants because of reported beneficial psychological effects This position can, however, lead to development of flattened posture very low birthweight (VLBW) infants and contributes to both …
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Design and fabrication of porcine crystal ribcage for high resolution ex vivo imaging
… observed when COVID-19 patients were put in the prone position to help drain extra liquid from the lungs [1]. High spatiotemporal resolution imaging is needed to probe the physiological effect of orientation in real-time while preserving the complex 3D architecture of the native lung. Current …
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Improving Quality of Prostate MRI
… 2 investigated the potential benefits of repositioning patients from supine to prone during prostate MRI. Since diffusion-weighted imaging (DWI) is particularly susceptible to susceptibility artefacts caused by rectal air at the prostate-rectum interface, imaging patients in the prone …
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Hyperpolarized Nuclei for NMR Imaging and Spectroscopy – Methodology and model studies of lung and vascular function
… the superior parts, with the subject in supine position, whereas a uniform ventilation was measured in prone position. From measurements of the dynamic uptake of 129Xe from the alveolar gas spaces to the pulmonary blood vessels, several physiological parameters could be derived, including the …
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Ventilación mecánica en posición prona en pacientes con síndrome de dificultad respiratoria aguda
Introducción La ventilación en posición prona ha demostrado mejorar la oxigenación y la mecánica ventilatoria en pacientes con síndrome de dificultad respiratoria aguda (SDRA). Nosotros evaluamos si la posición prona disminuye el riesgo de mortalidad en pacientes adultos con SDRA vs. ventilación en …
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An investigation into regional ventilation in infants and children; its distribution and determinants
Changing body position is commonly used in the management of individuals with respiratory diseases and those receiving mechanical ventilation, in order to optimise ventilation and oxygenation. In acute respiratory distress syndrome (ARDS), prone positioning is reported to improve oxygenation by …
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On-board Robotic Multi-pinhole SPECT System for Region-of-interest (ROI) Imaging
… multi-pinhole SPECT system around the patient in position for radiation therapy. </p><p>A 49-pinhole collimated SPECT detector and its shielding were designed and simulated in this work using the computer-aided design (CAD) software. The trajectories of robotic arm about the patient, treatment …
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In silico modelling to advance arterial spin labelling magnetic resonance imaging
… when posture was changed from the supine to prone position, both the gradient and heterogeneity of blood flow decreased. When ASL simulations were performed within a human lung model derived from a 70 kg man, an optimised threshold value of 35% was predicted, and this was determined to be …