Essays about: "gradient non-linearity"

Found 3 essays containing the words gradient non-linearity.

  1. 1. Development of a Machine Learning Survival Analysis Pipeline with Explainable AI for Analyzing the Complexity of ED Crowding : Using Real World Data collected from a Swedish Emergency Department

    University essay from KTH/Medicinteknik och hälsosystem

    Author : Tobias Haraldsson; [2023]
    Keywords : SHAP; Explainable AI; Survival Analysis; LOS; Machine Learning; ED Crowding; SHAP; Förklarbar AI; Överlevnadsanalys; LOS; Maskininlärning; Överbelastning på Akuten;

    Abstract : One of the biggest challenges in healthcare is Emergency Department (ED)crowding which creates high constraints on the whole healthcare system aswell as the resources within and can be the cause of many adverse events.Is is a well known problem were a lot of research has been done and a lotof solutions has been proposed, yet the problem still stands unsolved. READ MORE

  3. 2. Quality Assurance of the Spatial Accuracy of Large Field of View Magnetic Resonance Imaging

    University essay from KTH/Skolan för teknik och hälsa (STH)

    Author : Fredrik Illerstam; [2014]
    Keywords : MRI; MR; spatial accuracy; spatial distortions; large FOV; MR-only; radiotherapy treatment planning; RTP; gradient non-linearity; B0 inhomogeneity;

    Abstract : In todays Radiotherapy Treatment Planning, RTP, it is common to use Computed Tomography, CT, together with Magnetic Resonance Imaging, MRI, where CT provides electron density information and a geometrical reference, and where MRI provides superior soft tissue contrast. To sim- plify the workflow and improve treatment accuracy, research groups have demonstrated how to exclude CT and use a MRI-only approach. READ MORE

  4. 3. MIMO Channel Equalization and Symbol Detection using Multilayer Neural Network

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : Athar Waseem; A.H.M Sadath Hossain; [2013]
    Keywords : MIMO; ISI; NN; SER; Channel Equalizer; QAM;

    Abstract : In recent years Multiple Input Multiple Output (MIMO) systems have been employed in wireless communication systems to reach the goals of high data rate. A MIMO use multiple antennas at both transmitting and receiving ends. These antennas communicate with each other on the same frequency band and help in linearly increasing the channel capacity. READ MORE