Mark Bydder, Daniel M Cornfeld, Tracy R Melzer, Paul Condron, Gil Newburn, Eryn E Kwon, Maryam Tayebi, Miriam Scadeng, Samantha J Holdsworth, Graeme M Bydder
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引用次数: 0
Abstract
Magnetic resonance imaging (MRI) techniques have recently been developed for obtaining high T1 contrast images using inversion recovery (IR) images at two inversion times (TIs) rather than a single TI. They use simple mathematical operations - multiplication, addition, subtraction, division - to create images not attainable by conventional IR. The present study describes a novel two-point IR technique formed by the subtraction of log images. Results show it has a near-linear response to T1 between the nullpoints that peaks sharply at the nullpoints. This produces a bright isoT1 contour at interfaces between tissues where partial volume mixing generates specific T1s. This can provide anatomical information in areas where the signal is not well-differentiated on conventional images.
期刊介绍：
Magnetic Resonance Imaging (MRI) is the first international multidisciplinary journal encompassing physical, life, and clinical science investigations as they relate to the development and use of magnetic resonance imaging. MRI is dedicated to both basic research, technological innovation and applications, providing a single forum for communication among radiologists, physicists, chemists, biochemists, biologists, engineers, internists, pathologists, physiologists, computer scientists, and mathematicians.
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