Essays about: "Parallell imaging"

Found 5 essays containing the words Parallell imaging.

  1. 1. Predictive MR Image Generation for Alzheimer’s Disease and Normal Aging Using Diffeomorphic Registration

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Yuqi Zheng; [2023]
    Keywords : Medical Image Generation; Brain Aging; Diffeomorphic Registration; AlzheimerŠs Disease; Medicinsk bildgenerering; Åldrande av hjärnan; DiffeomorĄsk registrering; Alzheimers sjukdom;

    Abstract : Alzheimer´s Disease (AD) is the most prevalent cause of dementia, signifying a progressive and degenerative brain disorder that causes cognitive function deterioration including memory loss, communication difficulties, impaired judgment, and changes in behavior and personality. Compared to normal aging, AD introduces more profound cognitive impairments and brain morphology changes. READ MORE

  3. 2. Coil Sensitivity Estimation and Intensity Normalisation for Magnetic Resonance Imaging

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Rebecka Herterich; Anna Sumarokova; [2019]
    Keywords : Image reconstruction; Magnetic Resonance Imaging; sensitivity encoding; Parallell imaging; Coil sensitivity; ISMRM raw data; Magnetresonanstomografi; känslighetskodning; bildrekonstruktion; Parallell imaging; Spolkänslighet; ISMRMRD;

    Abstract : The quest for improved efficiency in magnetic resonance imaging has motivated the development of strategies like parallel imaging where arrays of multiple receiver coils are operated simultaneously in parallel. The objective of this project was to find an estimation of phased-array coil sensitivity profiles of magnetic resonance images of the human body. READ MORE

  4. 3. Simulation of Biological Tissue using Mass-Spring-Damper Models

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Emil Eriksson; [2013]
    Keywords : mass-spring-damper; model; modelling; biological tissue; 3D; medical imaging; real-time; parallel computation; GPU; OpenCL; Runge-Kutta; move; cut; simulation; medical visualization; surgical simulation; massa-fjäderdämpare; modell; modellera; biologisk vävnad; 3D; medicinsk skanningsutrustning; 3D-skanning; realtid; parallell beräkning; GPU; OpenCL; Runge-Kutta; flytta; skär; medicinsk bildvetenskap; kirurgisk simulering;

    Abstract : The goal of this project was to evaluate the viability of a mass-spring-damper based model for modeling of biological tissue. A method for automatically generating such a model from data taken from 3D medical imaging equipment including both the generation of point masses and an algorithm for generating the spring-damper links between these points is presented. READ MORE

  5. 4. Improved Temporal Resolution Using Parallel Imaging in Radial-Cartesian 3D functional MRI

    University essay from Datorseende

    Author : Gustav Ahlman; [2011]
    Keywords : fMRI; PRESTO-CAN; SENSE; parallel imaging; temporal resolution; radial-Cartesian sampling; normalized convolution;

    Abstract : MRI (Magnetic Resonance Imaging) is a medical imaging method that uses magnetic fields in order to retrieve images of the human body. This thesis revolves around a novel acquisition method of 3D fMRI (functional Magnetic Resonance Imaging) called PRESTO-CAN that uses a radial pattern in order to sample the (kx,kz)-plane of k-space (the frequency domain), and a Cartesian sample pattern in the ky-direction. READ MORE

  6. 5. Inverkan av stora mängder halm som underlag i grisningsboxen på den nyfödda smågrisens temperaturreglering

    University essay from SLU/Dept. of Animal Environment and Health

    Author : Fredrik Johansson; [2008]
    Keywords : strategisk halmning; kulting; temperaturreglering; IR; bobyggning;

    Abstract : The aim of the present study was to evaluate the effects of large amounts of straw in the farrowing pen on thermal regulation of the newborn piglet in different weight classes. 20 sows were given 15 kg of straw in the farrowing pen 2 days prior to until 7 days after parturition. A control group of 18 sows had no straw in the pen. READ MORE