The present disclosure provides a system and method for motion field generation and image correction. The method may include obtaining a plurality of first sets of magnetic resonance (MR) image data of an object generated based on a plurality of first sets of imaging sequences. The method may include obtaining a motion curve of the object. The method may include obtaining position emission tomography (PET) image data of the object generated in a scanning time period. The method may include generating one or more target motion fields corresponding to the scanning time period based on the plurality of first sets of MR image data and the motion curve. The method may include generating one or more corrected PET images by correcting, based on the one or more target motion fields, the PET image data.

In one embodiment, A medical diagnostic imaging apparatus includes: a scanner that images a first site of an object and generates medical image data, wherein the scanner acquires biological information from a sensor that detects the biological information at a second site of the object that is different to the first site, and images the first site based on the biological information that changes according to a movement at the second site of the object.

A motion sensor for a patient in an imaging application. A MEMS motion sensor is arranged for mounting or attachment to the patient's head, the motion sensor configured to detect the patient's motion and provide sensor signals to a utilization device such as a motion compensation processor to compensate patient images for the detected motion or a controller to send a message to the patient when motion is detected.

The present disclosure is related to systems and methods for reconstructing a positron emission tomography (PET) image. The method includes obtaining PET data of a subject. The PET data may correspond to a plurality of voxels in a reconstructed image domain. The method includes obtaining a motion signal of the subject. The method includes obtaining motion amplitude data. The motion amplitude data may indicate a motion range for each voxel of the plurality of voxels. The method includes determining gating data based at least in part on the motion amplitude data. The gating data may include useful percentage counts each of which corresponds to at least one voxel of the plurality of voxels. The method includes gating the PET data based on the gating data and the motion signal. The method includes reconstructing a PET image of the subject based on the gated PET data.

The present invention, in one form, is a method for deriving respiratory gated PET image reconstruction from raw PET data. In reconstructing the respiratory gated images in accordance with the present invention, respiratory motion information derived from individual voxel signal fluctuations, is used in combination to create usable respiratory phase information. Employing this method allows the respiratory gated PET images to be reconstructed from PET data with out the use of external hardware, and in a fully automated manner.

A dynamic state imaging system includes a hardware processor that acquires period information on a period of a subject's dynamic state having periodicity, and controls a radiation imaging apparatus to acquire dynamic state images of a plurality of periods by assigning a same phase as an imaging start timing for each period of the subject's dynamic state, based on the period information, and performing imaging at predetermined time intervals from the imaging start timing for each period.

In a method and apparatus for determining a physiological activity signal in a subject using various movement sensors that each transmit a temporal movement signal, a physiological reference signal is determined from the various movement signals that best depicts a physiological movement of the subject, the movement sensor that generates the physiological reference signal is identified as a physiological reference sensor, at least one physiological addition signal is determined from the temporal movement signals that is similar to the physiological reference signal up to a limit, and the physiological reference signal and the at least one addition signal are added to form the physiological activity signal.

A radiation image processing device which performs image processing to a moving image that is obtained by emitting radiation to a subject, the radiation image processing device including a hardware processor that: extracts a reference region from each of a plurality of frame images which form the moving image; calculates an image processing condition of the reference region for each of the frame images from which the reference region is extracted; determines a standard image processing condition which is a standard based on the calculated image processing condition of each of the frame images; and performs image processing by applying the determined standard image processing condition to each of the frame images.

A method of monitoring a patient includes: obtaining an input image having a plurality of regions of interest by a processing unit; and determining a plurality of positions for the respective plurality of regions of interest by the processing unit; wherein the act of determining the plurality of positions comprises: accessing a plurality of templates; comparing the plurality of templates with respective areas in the input image using a comparator in the processing unit; and determining the plurality of positions based at least in part on a result of the act of comparing.

An imaging device and a method for generating a motion-compensated image or video are provided. The imaging device has a data acquisition facility for acquiring image data of a target object. The imaging device is configured to acquire, using a registration facility, a posture of an inertial measurement unit and, on the basis thereof, to carry out a registration between coordinate systems of the inertial measurement unit and the image data. The imaging device is further configured to acquire motion data from the inertial measurement unit arranged on the target object and, by processing the motion data, to generate the motion-compensated image or video.