Beth Israel Deaconess Medical Center, Inc.

Tamer Basha

Reza Nezafat

Mehmet Akcakaya

Warren J Manning

An MRI apparatus includes: a data processor configured to acquire a first set of T-weighted imaging data and a second set of T-weighted imaging data; a pulse sequence controller configured to generate a pulse sequence and apply the generated pulse sequence to a gradient coil assembly and RF coil assembly, the generated pulse sequence including: T-preparation modules and associated imaging modules to acquire the first set of T-weighted imaging data, and a saturation pulse sequence and an associated saturation imaging module to acquire the second set of T-weighted imaging data; a curve fitter configured to apply the first and second sets of T-weighted imaging data to a three-parameter model for Tdecay, to determine a Tvalue at a plurality of locations; and an image processor configured to generate a Tmap of the object based on the Tvalue determined at the plurality of locations.

[object Object]

A system and method for acquiring magnetic resonance imaging (MRI) images with an MRI system is provided. The system and method directs the MRI system first to produce an inversion recovery radio frequency (RF) pulse, wait for a time period, produce a T2-preparation RF pulse, wait for another time period, and then acquire data of a part of a subject. The first produced RF pulse rotates net magnetization 180 degrees about an axis. The pulse sequence used to acquire data can be any two-dimensional or three-dimensional sequence used to acquire a volume in the subject. The two waiting time periods are chosen such that the signals of two or more tissues of the subject are nulled.

Magnetic resonance imaging that nulls signals from two or more tissues to better delineate an interested tissue

An MRI method includes performing a first image acquisition module of a pulse sequence to acquire a first MR data from slices disposed at different locations in a region of interest (ROI) of an object; performing a second image acquisition module of the pulse sequence, to acquire a second MR data from the slices disposed at the different locations of the ROI, with a T2 preparation time different than that of the first image acquisition module; and generating a T2 map based on the acquired first MR data and the acquired second MR data.

Method and apparatus for multi-slice imaging of T2-relaxation time

A method and apparatus for reducing scan time, eddy currents and image factors in dynamic magnetic resonance (MR) imaging associated with at least a portion a k-space. The method includes scanning at least a portion of the k-space with an Echo-Planar Imaging (EPI) pulse sequence technique, acquiring a randomly under-sampled k-space; and reconstructing the under-sampled k-space utilizing a constrained reconstruction technique. A dynamic image is constructed of the at least a portion of the k-space based on EPI and the randomly undersampled k-space techniques to each segment of the EPI pulse sequence technique.

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Tamer Basha