Abstract: A positioning method for a magnetic resonance imaging system comprises: acquiring a scattering parameter curve of a body coil during a process in which an examination table carrying a subject under examination enters a scanning bore of the magnetic resonance imaging system; acquiring the position of a part to be examined of the subject under examination on the basis of the scattering parameter curve; and moving the examination table on the basis of the position of the part to be examined such that the part to be examined is located at the center of the scanning bore.

Abstract: Provided in the present invention are a magnetic resonance imaging system and method, and a computer-readable storage medium. The method comprises: performing a medical scan of a subject and acquiring a first medical image having a first noise interference artifact, and performing an additional scan of the subject to acquire a second medical image, wherein the second medical image has a second noise interference artifact, and the location mapping of the second noise interference artifact in the first medical image is symmetrical to the location of the first noise interference artifact relative to a pixel center of the first medical image; and performing synthesis-related processing on the first medical image and the second medical image to acquire a post-processed image with reduced noise interference artifacts.

Abstract: The present application provides a breathing and motion monitoring method for an MRI system, an MRI system and method, and a storage medium. The MRI includes a scanner, a controller, and a signal processor. The scanner includes a radio-frequency transmit chain and a radio-frequency transmit coil, and an object under detection is positioned relative to the radio-frequency transmit coil. The controller is configured to control the scanner to perform a scanning sequence on the object under detection to acquire image data. The scanning sequence includes a radio-frequency excitation stage, a signal acquisition stage, and an idle stage. In the radio-frequency excitation stage, the radio-frequency transmit chain transmits a first radio-frequency pulse to the radio-frequency transmit coil.

Abstract: An embodiment of the present utility model relates to a balun assembly, including: an outer conductive tube body disposed around an electrical cable, the outer conductive tube body including a first portion and a second portion detachably connected to each other; a conductive connection member electrically connecting the outer conductive tube body to the electrical cable; and an insulative material disposed between the outer conductive tube body and the electrical cable. An embodiment of the present utility model further relates to a magnetic resonance device including the balun assembly.

Abstract: The present invention provides a positioning method for a magnetic resonance imaging system, a magnetic resonance imaging system, and a non-transitory computer-readable storage medium. The positioning method for the magnetic resonance imaging system comprises: acquiring a scattering parameter curve of a body coil during a process in which an examination table carrying a subject under examination enters a scanning bore of the magnetic resonance imaging system; acquiring the position of a part to be examined of the subject under examination on the basis of the scattering parameter curve; and moving the examination table on the basis of the position of the part to be examined such that the part to be examined is located at the center of the scanning bore.

Abstract: An embodiment of the present utility model relates to a balun assembly, including: an outer conductive tube body disposed around an electrical cable, the outer conductive tube body including a first portion and a second portion detachably connected to each other; a conductive connection member electrically connecting the outer conductive tube body to the electrical cable; and an insulative material disposed between the outer conductive tube body and the electrical cable. An embodiment of the present utility model further relates to a magnetic resonance device including the balun assembly.

Abstract: A magnetic resonance imaging (MRI) system includes a table and at least one processor. The table is configured to support a patient, and to travel along a length in a direction of movement through an imaging zone to at least one imaging position. A spatial gradient field varies for at least a portion of the imaging zone. The at least one processor is operably coupled to the table, and configured to obtain a spatial gradient field curve representing magnitude of the spatial gradient field as a function of position along the direction of movement; determine a table speed curve using the spatial gradient field curve, wherein the table speed varies along the direction of movement; and control movement of the table using the table speed curve.