Measurement of a High-Temporal Resolution Arterial Input Function from MR Projections: Extension to Radial Acquisition to Compensate for Local Tissue Enhancement
نویسندگان
چکیده
Measurement of a High-Temporal Resolution Arterial Input Function from MR Projections: Extension to Radial Acquisition to Compensate for Local Tissue Enhancement Jen Moroz, Stefan A Reinsberg, and Piotr Kozlowski Physics and Astronomy, University of British Columbia, Vancouver, BC, Canada, Radiology, UBC, University of British Columbia, BC, Canada, UBC MRI Research Centre, University of British Columbia, BC, Canada
منابع مشابه
Rapid measurement of arterial input function in mouse tail from projection phases.
PURPOSE To measure the arterial input function (AIF) in a mouse tail at high temporal resolution with signal phase of MR projections. METHODS The technique involves the acquisition of one 2D image before injection, followed by a series of projections before, during, and after contrast injection. Differences in the signal phase, relative to the mean preinjection phase, were calculated and conv...
متن کاملHigh Spatiotemporal Resolution Dynamic Contrast-Enhanced MR Enterography in Crohn Disease Terminal Ileitis Using Continuous Golden-Angle Radial Sampling, Compressed Sensing, and Parallel Imaging.
OBJECTIVE The purpose of this article was to assess the feasibility of golden-angle radial acquisition with compress sensing reconstruction (Golden-angle RAdial Sparse Parallel [GRASP]) for acquiring high temporal resolution data for pharmacokinetic modeling while maintaining high image quality in patients with Crohn disease terminal ileitis. MATERIALS AND METHODS Fourteen patients with biops...
متن کاملRobust Fuzzy Content Based Regularization Technique in Super Resolution Imaging
Super-resolution (SR) aims to overcome the ill-posed conditions of image acquisition. SR facilitates scene recognition from low-resolution image(s). Generally assumes that high and low resolution images share similar intrinsic geometries. Various approaches have tried to aggregate the informative details of multiple low-resolution images into a high-resolution one. In this paper, we present a n...
متن کاملA Deep Model for Super-resolution Enhancement from a Single Image
This study presents a method to reconstruct a high-resolution image using a deep convolution neural network. We propose a deep model, entitled Deep Block Super Resolution (DBSR), by fusing the output features of a deep convolutional network and a shallow convolutional network. In this way, our model benefits from high frequency and low frequency features extracted from deep and shallow networks...
متن کاملDynamic 3D contrast enhanced liver imaging using a novel hybrid cartesian-radial acquisition with flexible temporal and spatial resolution
Introduction. An important feature of liver MRI is dynamic, multi-phase Gd enhanced acquisition to distinguish tissues supplied by hepatic arterial blood from those supplied by the portal vein [1,2]. This allows detection and characterization of liver lesions such as hepatocellular carcinoma which typically enhances early in the arterial phase and washes out rapidly. Current clinical practice r...
متن کامل