G01R33/56383

PATIENT COUCH WITH FLEXIBLE RF TRANSMITTING POWER DISTRIBUTION FOR A MAGNETIC RESONANCE TOMOGRAPHY SYSTEM
20180003791 · 2018-01-04 ·

A patient couch for a magnetic resonance tomography system and a magnetic resonance tomography system are provided. The patient couch includes a feed facility for radiofrequency energy having a plurality of conduction paths for feeding radiofrequency energy. The patient couch also includes a plurality of plug-in connectors for local coils having a transmit coil, and a distribution structure for the distribution of radiofrequency energy from the feed facility to the plug-in connectors.

Magnets and magnetic resonance imaging systems
11630174 · 2023-04-18 ·

A magnet suitable for use in a Magnetic Resonance Imaging (MRI) system. The magnet includes a magnet body having a bore extending therethrough along an axis of the body and a primary coil structure having at least four primary coils positioned along the axis. A first end coil is adjacent a first end of the bore of the magnet and a second end coil is adjacent a second end of the magnet. The first end coil and the second end coil are spaced apart by no more than 1000 mm and an imaging region produced by the primary coils is of a disk-type.

MR imaging with extended field of view

Magnetic resonance examination system comprises displaceable carrier for supporting an object to be examined. The carrier can be moved over a two dimensional area. The magnetic resonance examination system is configured to acquire sets of magnetic resonance signals from the object for various positions of the carrier in the two dimensional area.

Method and magnetic resonance apparatus for determination of magnetic resonance angiography images using time-of-flight angiography
09782106 · 2017-10-10 · ·

In a method and apparatus, magnetic resonance angiography images of an examination volume of a patient are obtained using time-of-flight angiography in a magnetic resonance scanner. By continuous recording, a number of two-dimensional slice images covering the examination volume along an axial direction are acquired in a slice-by-slice layer-wise, such as with overlapping. The slice images are divided into groups of, in each case, a predetermined number of consecutive slice images in the axial direction. A maximum intensity projection image is determined for each group, and the angiography images are determined as the maximum intensity projection images and/or dependent on the maximum intensity projection images.

METHOD AND TEST APPARATUS FOR DETERMINING A DEVIATION IN HOMOGENEITY OF A MAGNETIC FIELD OF A MAGNETIC RESONANCE SCANNER
20170276746 · 2017-09-28 · ·

In a method and test apparatus for determining a deviation in the homogeneity of a basic magnetic field of a magnetic resonance scanner, test vessels are positioned in a test plane that first and second positions along a direction in the scanner, and measurement data are acquired with the test vessels at said respective positions. The acquired measurement data are provided to a processor, wherein a deviation of the homogeneity of the basic magnetic field is determined based thereon.

System And Method For Accelerated Angiographic Magnetic Resonance Imaging
20170248670 · 2017-08-31 ·

A magnetic resonance method and system are provided for projection MR imaging of vascular structures within a subject, with scan times that are shorter than those needed for conventional techniques. Image acquisition sequences are synchronized with heartbeat cycles of the subject, and are configured to generate image data having a reduced spatial resolution in the projection direction perpendicular to a preselected projection plane. A reduction factor F quantifies this reduced resolution, such that the number of data acquisition sequences provided within each heartbeat cycle is F times as many as a comparable imaging protocol that generates full-resolution data. The total scan time can be reduced by a factor of F with negligible degradation in the projection image quality.

Magnetic resonance imaging of the spine to detect scoliosis
09730610 · 2017-08-15 · ·

In one aspect, the present invention is a method for detecting spinal abnormalities using magnet resonance imaging. The method comprises positioning a patient in an upright posture in an imaging volume of a magnet resonance imaging magnet with the spine of the patient adjacent to an antenna and capturing magnetic resonance imaging signals from a first portion of the patient's spine using the antenna with the patient positioned in a first position. The method may further comprise adjusting the patient position along a substantially vertical direction to a second position and capturing magnetic resonance imaging signals from a second portion of the patient's spine using the antenna with the patient positioned in the second position.

MRI antenna coil selection unit within patient table cable duct

A selection unit for a magnetic resonance imaging system may be provided. The selection unit electrically connects a first number of electrical terminals to a second number of communication entities. The selection unit is arranged in and/or on a mobile object-support element for moving an examination object which is to be depicted by the magnetic resonance imaging system into a recording position.

IMAGE SIGNAL REPRESENTING A SCENE
20220155395 · 2022-05-19 ·

First k-space data are received for a MRI examination of a subject in a first field of view (FOV), and second k-space data are received for a second field of view that is adjacent to or overlaps the first field of view. Alternatively, second k-space data, comprising phase and/or slice oversampling k-space data of the first field of view are retrieved from a non-transitory data storage medium. The first k-space data are reconstructed by using at least a portion of the second k-space data as phase and/or slice oversampling to generate a first extended image of a first extended field of view that encompasses the first field of view and extends into the second field of view. The first extended image is cropped to the first field of view to generate an image of the first field of view for the first MRI examination.

Systems and methods for scanning an object

A system for scanning an object is provided. The system may include: a supporting table configured to support the object; a first signal conversion unit configured to receive one or more first signals associated with the object and convert the first signals into one or more second signals; and a signal receiver board configured to receive the one or more second signals. The first signal conversion unit may include a plurality of first signal receiving channels. Each first signal receiving channel may be configured to receive a first signal associated with a portion of the object. The supporting table and the signal receiver board may be configured to move relative to each other to cause the signal receiver board to receive at least one second signal corresponding to at least one first signal received by at least one target channel of the first signal receiving channels.