Temporally constrained reconstruction applied to MRI temperature data
نویسندگان
چکیده
منابع مشابه
Temporally constrained reconstruction applied to MRI temperature data.
The monitoring of thermal ablation procedures would benefit from an acceleration in the rate at which MRI temperature maps are acquired. Constrained reconstruction techniques have been shown to be capable of generating high quality images using only a fraction of the k-space data. Here, we present a temporally constrained reconstruction (TCR) algorithm applied to proton resonance frequency shif...
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Dynamic contrast-enhanced (DCE) MRI is a powerful technique to probe an area of interest in the body. Here a temporally constrained reconstruction (TCR) technique that requires less k-space data over time to obtain good-quality reconstructed images is proposed. This approach can be used to improve the spatial or temporal resolution, or increase the coverage of the object of interest. The method...
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A. Samsonov, E. Kholmovski, C. Johnson Scientific Computing and Imaging Institute, University of Utah, Salt Lake City, Utah, United States, UCAIR, Department of Radiology, University of Utah, Salt Lake City, Utah, United States Introduction: Using phase constraints in sensitivity-encoded data reconstruction promises a number of benefits, including improved image quality, signal-to-noise ratio (...
متن کاملToward real-time availability of 3D temperature maps created with temporally constrained reconstruction.
PURPOSE To extend the previously developed temporally constrained reconstruction (TCR) algorithm to allow for real-time availability of three-dimensional (3D) temperature maps capable of monitoring MR-guided high intensity focused ultrasound applications. METHODS A real-time TCR (RT-TCR) algorithm is developed that only uses current and previously acquired undersampled k-space data from a 3D ...
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Introduction: The fundamental challenge in dynamic MR imaging is the tradeoff between spatial resolution and temporal resolution. Most traditional dynamic image acquisition methods and associated image reconstruction methods have been based on k-space operations. One acquires a temporal sequence of incomplete k-space sample sets, along with one (or two) complete reference datasets, and then emp...
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2009
ISSN: 0740-3194
DOI: 10.1002/mrm.22012