Pattern recognition for rapid T2 mapping with stimulated echo compensation
نویسندگان
چکیده
منابع مشابه
A technique for rapid single-echo spin-echo T2 mapping.
A rapid technique for mapping of T(2) relaxation times is presented. The method is based on the conventional single-echo spin echo approach but uses a much shorter pulse repetition time to accelerate data acquisition. The premise of the new method is the use of a constant difference between the echo time and pulse repetition time, which removes the conventional and restrictive requirement of pu...
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Magnetic resonance imaging methods that are sensitive to T2* are widely used in the study of blood oxygenation changes, most notably in functional studies of the brain. In these studies the signal intensity change in T2*-weighted imaging is related to the coupling of cerebral blood flow and metabolism. Rapid measurement of T2* itself would offer a valuable method to quantify blood oxygenation c...
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BACKGROUND The abnormal signal intensity in cardiac T2-weighted images is associated with various pathologies including myocardial edema. However, the assessment of pathologies based on signal intensity is affected by the acquisition parameters and the sensitivities of the receiver coils. T2 mapping has been proposed to overcome limitations of T2-weighted imaging, but most methods are limited i...
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BACKGROUND Quantitative Cardiovascular Magnetic Resonance (CMR) techniques have gained high interest in CMR research. Myocardial T2 mapping is thought to be helpful in diagnosis of acute myocardial conditions associated with myocardial edema. In this study we aimed to establish a technique for myocardial T2 mapping based on gradient-spin-echo (GraSE) imaging. METHODS The local ethics committe...
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Introduction Last year the Dual-Echo PRESTO [l] technique was introduced to measure I0 and T2* simultaneously. This technique is an extension of the PRESTO [2] technique (TE > TR) and allows for the acquisition of two echoes within each TR. The first echo with a short TE (-7 ms) is acquired directly after RF excitation and is immediately followed by an echo with a long TE (-43 ms) which is echo...
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ژورنال
عنوان ژورنال: Magnetic Resonance Imaging
سال: 2014
ISSN: 0730-725X
DOI: 10.1016/j.mri.2014.04.014