Pre-processing in three-dimensional magnetic resonance angiography (MRA) images
نویسندگان
چکیده
منابع مشابه
Three-dimensional adaptive filtering in magnetic resonance angiography.
In order to enhance 3D image data from magnetic resonance angiography (MRA), a novel method based on the theory of multidimensional adaptive filtering has been developed. The purpose of the technique is to suppress image noise while enhancing important structures. The method is based on local structure estimation using six 3D orientation selective filters, followed by an adaptive filtering step...
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We present our initial experience on first-pass gadolinium-enhanced coronary artery magnetic resonance angiography (MRA). Three-dimensional segmented gradient-echo sequences were developed to image coronary arteries within a single breathhold during the injection of a double-dose contrast agent. Comparisons were made between a short TR of 2.7-msec (n = 5) and a long TR of 5.0-msec (n = 3) seque...
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Objective: The purpose of this study is to evaluate the effect of various upper extremity positions (adduction-abduction) on vascular structures in contrast-enhanced three-dimensional MR angiographic studies performed in patients with thoracic outlet syndrome. Materials and Methods: Twenty-two consecutive patients with clinical symptoms of neurovascular thoracic outlet syndrome were examined by...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2007
ISSN: 1742-6596
DOI: 10.1088/1742-6596/90/1/012070