Ultra-short echo time images quantify high liver iron
نویسندگان
چکیده
منابع مشابه
Cluster-based segmentation of dual-echo ultra-short echo time images for PET/MR bone localization
BACKGROUND Magnetic resonance (MR)-based attenuation correction is a critical component of integrated positron emission tomography (PET)/MR scanners. It is generally achieved by segmenting MR images into tissue classes with known attenuation properties (e.g., bone, fat, soft tissue, lung, air). Ultra-short echo time (UTE) have been proposed in the past to locate bone tissue. In this study, tri-...
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Introduction: Ultra-short echo time (UTE) imaging has been proposed as a method for visualizing short T2 relaxation components in the head and has demonstrated the ability to visualize structures such as the dura mater, falx cerebri, bone marrow and short T2 white matter compartments [1]. Previous work has demonstrated UTE imaging using 2D radial [1], 2D spiral [2] and 3D stack-of-spiral [3] im...
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A robust modification of echo-planar imaging dubbed double-shot echo-planar imaging with center-out trajectories and intrinsic navigation (DEPICTING) is proposed, which permits imaging at ultra-short echo time. The k-space data is sampled by two center-out trajectories with a minimal delay achieving a temporal efficiency similar to conventional single-shot echo-planar imaging. Intersegment phas...
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Introduction Ultra-short Echo Time (UTE) MRI allows for the detection of short T2 components (T2 of the order of 100 μs) in tissue before they have decayed [1, 2]. This is potentially interesting for a range of applications such as MR imaging of bone, tendons and ligaments, sodium MRI, and other applications such as MR-PET attenuation correction. Until now the UTE method has been based on a Ste...
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K. Wang, H. Yu, J. Brittain, S. Reeder, and J. Du Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, Applied Science Laboratory, GE Healthcare, Menlo Park, CA, United States, Applied Science Laboratory, GE Healthcare, Madison, WI, United States, Radiology, University of Wisconsin-Madison, Madison, WI, United States, Radiology, University of California, San Diego, San ...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2017
ISSN: 0740-3194
DOI: 10.1002/mrm.26791