The present disclosure provides a system for MRI. The system may obtain a plurality of auxiliary signals and a plurality of imaging signals collected by applying an MRI pulse sequence simultaneously to a plurality of slice locations of a subject. For each of at least one target slice location of the plurality of slice locations, the system may generate at least one target image of the target slice location based on the plurality of auxiliary signals and the plurality of imaging signals. During the application of the MRI pulse sequence, phase modulation may be applied to at least one of the plurality of slice locations so that the plurality of slice locations have different phases during the readout of at least one of the plurality of imaging signals.

Methods and systems for processing a digital magnetic resonance (MR) image volume in an image data set using intensity standardization to provide standardized MR image slices are described which generally involve determining an image volume scaling factor to align an image volume landmark of a volume histogram of the digital MR image volume with a reference volume landmark of a reference histogram of a reference image volume; and scaling intensity values of the digital MR image volume based on the image volume scaling factor to generate a scaled digital MR image volume. Methods and systems are also described for generating standardized image slices that can be used in various MR image processing methodologies such as image segmentation and object detection.

A method for determining a saturation pulse for suppressing signals from unwanted areas in the context of acquiring measurement data from a target volume of an object under examination by means of a magnetic resonance system, includes: loading the characteristics of the unwanted areas from which signals are to be suppressed; determining area saturation pulses for signal suppression in each of the unwanted areas; and determining a saturation pulse for signal suppression in all the unwanted areas on the basis of the area saturation pulses determined.

A magnetic resonance imaging apparatus according to an embodiment includes processing circuitry. The processing circuitry sets a pulse sequence to collect plural echo signals by application of a refocusing pulse more than once after application of an excitation pulse once, and collects data on plural slices that are parallel to each other by executing the pulse sequence more than once. The processing circuitry sets the pulse sequence such that a slice thickness for the refocusing pulse becomes larger than a slice thickness for the excitation pulse, and collects the data on the plural slices by executing the pulse sequence without consecutively collecting data on adjacent ones of the plural slices.

Systems and methods for MRI are provided. The methods may include for each slice of a plurality of slices of a subject to be scanned, determining a plurality of radiofrequency (RF) parameters, the plurality of RF parameters including at least one channel parameter corresponding to each of a plurality of channels; determining a slice group based at least in part on the RF parameters corresponding to the plurality of slices, the slice group including at least two slices selected from the plurality of slices; and directing at least a portion of the plurality of channels to excite the slice group based on RF parameters corresponding to the slice group.

This patent includes a method for utilizing imaging biomarkers to improve pharmacologic dosing strategies. Specifically, biomarker specific CT and MM examination protocols are disclosed. Dose adjustments based on imaging biomarkers are discussed. Longitudinal analysis of imaging biomarkers is disclosed assess effectiveness of pharmacotherapy and dosing strategies thereof. Finally, manufacturing of a combination pill with day-to-day variations of drug quantities is disclosed.

An apparatus to jointly measure oxygen utilization and tissue strain includes an imaging system and a computer processor operatively coupled to the imaging system. The computer processor is configured to control the imaging system to perform a pulse sequence on tissue of a subject. The computer processor also acquires oxygen utilization data and strain data responsive to the pulse sequence. The computer processor further determines an amount of strain on the tissue of the subject based at least in part on the strain data and an amount of oxygen utilization of the tissue of the subject based at least in part on the oxygen utilization data.

The invention provides a multi-slice magnetic resonance imaging method and device based on long-distance attention model reconstruction. The method includes that: a deep learning reconstruction model is constructed; data preprocessing is performed on multiple slices of simultaneously acquired signals, and multiple slices of magnetic resonance images or K-space data is used as data input; learnable positional embedding and imaging parameter embedding are acquired; the preprocessed input data, the positional embedding and the imaging parameter embedding are input into the deep learning reconstruction model; and the deep learning reconstruction model outputs a result of the magnetic resonance reconstruction image. The invention further provides a device for implementing the method. The invention may improve the quality of the magnetic resonance image, improve the diagnosis accuracy of a doctor, increase the imaging speed, and improve the utilization rate of a magnetic resonance machine.

Systems and methods are provided for producing an image of a subject using a magnetic resonance imaging (MRI) system. The method includes designing a saturation- based labeling pulse sequence for an MRI process that includes radio-frequency (RF) pulses and gradients forming a ratio of RF slice-selection gradient to time-averaged gradient that maintains multiple aliased labeling planes within an envelope of the RF pulses. The method also includes performing the MRI process to acquire image data from the subject using the saturation-based labeling pulse sequence and reconstructing a saturation-based spin labeled images of the subject using image data.

The present disclosure provides a system and method for image data acquisition. The method may include obtaining image data of a subject including a first type of tissue and a second type of tissue. The method may include determining, based on the image data of the subject, a target portion including at least a portion of at least one of the first type of tissue or the second type of tissue. The method may include determining, based at least in part on the target portion represented in the image data, a scan mode corresponding to the target portion. The method may include causing an imaging device to acquire, based on the scan mode, image data of the target portion.