Abstract: An apparatus, system and method to determine a coordinate system of a heart includes an imager and a computer. The computer is programmed to acquire a first set of initialization imaging data from an anatomical region of a free-breathing subject. A portion of the first set of initialization imaging data includes organ data, which includes cardiac data. The computer is further programmed to determine a location of a central region of a left ventricle of a heart, where the location is based on the organ data and a priori information. The computer is also programmed to determine a short axis of the left ventricle based on the determined location, acquire a first set of post-initialization imaging data from the free-breathing subject from an imaging plane orientation based on the determination of the short axis, and reconstruct at least one image from the first set of post-initialization imaging data.

Abstract: A method for reconstructing an image in a magnetic resonance imaging system is provided. The method includes steps of acquiring magnetic resonance signals from a plurality of receiver coils placed about a subject, each receiver coil having a coil sensitivity, iteratively polling each acquired magnetic resonance signal for determining one or more significant wavelet components of each acquired magnetic resonance signal by utilizing a coil sensitivity function of each receiver coil for each acquired magnetic resonance signal, iteratively determining one or more coefficients based on the one or more significant wavelet components to generate a plurality of coefficients for each acquired magnetic resonance signal, reconstructing an image utilizing a corresponding plurality of coefficients corresponding to each acquired magnetic resonance signal, and generating a composite image by combining the reconstructed images.

Abstract: An apparatus, system and method to determine a coordinate system of a heart includes an imager and a computer. The computer is programmed to acquire a first set of initialization imaging data from an anatomical region of a free-breathing subject. A portion of the first set of initialization imaging data includes organ data, which includes cardiac data. The computer is further programmed to determine a location of a central region of a left ventricle of a heart, where the location is based on the organ data and a priori information. The computer is also programmed to determine a short axis of the left ventricle based on the determined location, acquire a first set of post-initialization imaging data from the free-breathing subject from an imaging plane orientation based on the determination of the short axis, and reconstruct at least one image from the first set of post-initialization imaging data.

Abstract: A method for reconstructing an image in a magnetic resonance imaging system is provided. The method includes steps of acquiring magnetic resonance signals from a plurality of receiver coils placed about a subject, each receiver coil having a coil sensitivity, iteratively polling each acquired magnetic resonance signal for determining one or more significant wavelet components of each acquired magnetic resonance signal by utilizing a coil sensitivity function of each receiver coil for each acquired magnetic resonance signal, iteratively determining one or more coefficients based on the one or more significant wavelet components to generate a plurality of coefficients for each acquired magnetic resonance signal, reconstructing an image utilizing a corresponding plurality of coefficients corresponding to each acquired magnetic resonance signal, and generating a composite image by combining the reconstructed images.

Abstract: Provided is a method, including accessing or acquiring a phase image including a contrast agent enhanced region and determining a quantity of a contrast agent based on the phase image. Further provided is a computer program for determining the quantity of a substance in a region. The program is constructed and arranged to access or acquire a contrast enhanced image, to execute a fitting algorithm based on data contained in the contrast enhanced image, and to determine the quantity of the substance based on the output/result/outcome of the fitting algorithm.

Abstract: The present invention provides a method and system for automatically processing longitudinal magnetic resonance (MR) images comprising obtaining a first MR image, selecting a region of interest within the first MR image, obtaining at least one subsequent MR image, applying a registration relative to the first MR image and the at least one subsequent MR image wherein the region of interest in the at least one subsequent MR image is repositioned analogously to the region of interest in the first MR image. A computer readable program is provided configured to apply a registration relative to a first MR image and an at least one subsequent MR wherein a region of interest in the at least one subsequent MR image is repositioned analogously to a region of interest in the first MR image.

Abstract: A system and a method for detecting an object, such as an explosive device or material, located within a closed article, such as a piece of luggage or a parcel. The system includes an acquisition subsystem for acquiring information pertaining to a specific object, a reconstruction subsystem for reconstructing acquired information pertaining to the specific object into image data, and a computer-aided detection subsystem adapted for identifying the specific object through the use of differential operators. The method includes obtaining image data of the one object, computing a differential operator for each voxel of the image data, computing eigenvalues and eigenvectors for each of the voxels, and computing a scalar function of the eigenvalues to ascertain whether each of the voxels represents a portion of the one object.

Abstract: A method and system for correcting examination images acquired by a magnetic resonance imaging (MRI) device are provided. The method comprises the steps of imaging a phantom of known structure at selected intervals to generate phantom images, analyzing the phantom images relative to images of the phantom acquired at a previous time, calculating variations between respective phantom images, and correcting the examination images and/or measurements based off the examination images using the calculated variations between phantom images. The system comprises an imaging device for acquiring images of a subject and the phantom and an image processor adapted to correct the examination images based on the calculated variations between respective phantom images.