Disclosed are a magnetic resonance temperature correction method based on k-space energy spectrum analysis and a system. The method includes: filling a k-space data matrix of magnetic resonance with zeros row by row, and performing an inverse Fourier transform on the k-space data matrix after filling each row of zeros, to obtain a reconstructed image; drawing a pixel intensity variation curve according to a pixel intensity of each pixel in all reconstructed images and a number of rows filled with zeros, and obtaining echo error according to the pixel intensity variation curve, calculation an actual echo time, and calculating a corresponding temperature variation value based on the TE of each pixel.

The present invention relates to a detector device for detection of unauthorised objects or substances, comprising a support base (110) designed to receive at least one foot covered by its shoe, of an individual to be controlled, characterised in that it comprises in combination microwave sender/receiver means (140), measuring means (150) of the width of an element inserted in between the microwave sender/receiver means (140), analysis means of at least one parameter of the transmission time between the microwave sender/receiver means (140) and/or the amplitude of the signal transmitted between the microwave sender/receiver means (140), and standardisation means of the abovementioned analysis relative to a size unit of standard width obtained on the basis of the width-measuring means (150).

A sample simulated scanning device and a use method. The sample simulated scanning device includes a base, a conveying platform provided on the base, a first interaction means provided in the conveying platform, a controller, and a display means. The conveying platform is configured to convey a biological sample placed on the surface of the conveying platform; a second interaction means is arranged in the biological sample; biological species information is stored in the second interaction means; biological part information is stored in the first interaction means; when the biological sample is conveyed to a position where the second interaction means and the first interaction means carry out communication interaction, on the basis of the biological species information and the biological part information, the controller invokes pre-stored video data matching the biological species information and the biological part information, and the display means plays the video data.

A technique for reliably measuring brain atrophy based on image data, such as data collected as part of an MRI scan of a subject's brain. Rather than measure anatomical features of the brain in one of the scan planes as output by an MRI system, the image data is reformatted to generate a slice that may be transverse to those scan planes. The transverse slice is generated by determining a location of anatomical landmarks and reformatting the image data to represent a slice through these anatomical landmarks. The Anterior and Posterior Commissures are useful landmarks and ventricle area is a useful characteristic to measure from the slice. The rate of change of this measured characteristic can be tracked to determine disease progression and may be useful for diagnosis or evaluation of treatments, and the technique may be applied during clinical trials.

An IR pulse is applied to a tag region B that is disposed at the upstream side of the ascending aorta relative to a tag region A at a timing with a second predetermined delay time TD2 (for example, 600 ms) from the application time of an IR pulse to the tag region A to thereby perform tagging. By this tagging, it is possible to suppress the MR signals derived from the substantial portions and the blood within the tag region B. Subsequently, an imaging scan is performed after a predetermined time lapse TIA (for example, 1200 ms) from the application time of the IR pulse to the tag region A or after a predetermined time lapse TIB (for example, 600 ms) from the application time of the IR pulse to the tag region B.

An IR pulse is applied to a tag region B that is disposed at the upstream side of the ascending aorta relative to a tag region A at a timing with a second predetermined delay time TD2 (for example, 600 ms) from the application time of an IR pulse to the tag region A to thereby perform tagging. By this tagging, it is possible to suppress the MR signals derived from the substantial portions and the blood within the tag region B. Subsequently, an imaging scan is performed after a predetermined time lapse TIA (for example, 1200 ms) from the application time of the IR pulse to the tag region A or after a predetermined time lapse TIB (for example, 600 ms) from the application time of the IR pulse to the tag region B.

A magnetic resonance technology is used to implement front and back proximity sensing capability for wireless devices such as a laptap device. For example, a high quality (Q) factor coil antenna may be embedded in a display, such as a liquid crystal display, of a first laptap device to detect other wireless devices (e.g., a second laptap) that are within coupling distance of the first laptap device. In this example, the second laptap device induces a sine wave signal to the first laptap device if the second laptap device is physically located at backside of the first laptap device. Otherwise, the second laptap device may induce a cosine wave signal to the first laptap device if the second laptap device is physically located at the front side of the first laptap device.

A magnetic resonance technology is used to implement front and back proximity sensing capability for wireless devices such as a laptap device. For example, a high quality (Q) factor coil antenna may be embedded in a display, such as a liquid crystal display, of a first laptap device to detect other wireless devices (e.g., a second laptap) that are within coupling distance of the first laptap device. In this example, the second laptap device induces a sine wave signal to the first laptap device if the second laptap device is physically located at backside of the first laptap device. Otherwise, the second laptap device may induce a cosine wave signal to the first laptap device if the second laptap device is physically located at the front side of the first laptap device.

Described herein are systems and methods for the selective mapping of water T1 relaxation times.

A delta-relaxation magnetic resonance imaging (DREMR) system is provided. The system includes a main field magnet and field shifting coils. A main magnetic field with a strength B0 can be generated using the main filed magnet and the strength B0 of the main magnetic field can be varied through the use of the field-shifting coils. The DREMR system can be used to perform signal acquisition based on a pulse sequence for acquiring at least one of T2*-weighted signals imaging; MR spectroscopy signals; saturation imaging signals and MR signals for fingerprinting. The MR signal acquisition can be augmented by varying the strength B0 of the main magnetic field for at least a portion of the pulse sequence used to acquire the MR signal.