Abstract: Systems and methods for MRI are provided. The systems obtain a reference MR image of a target subject. The reference MR image is acquired by performing a reference MR scan on a first anatomical structure of the target subject before a target MR scan. The target MR scan is to be performed on a second anatomical structure of the target subject. The second anatomical structure is smaller than the first anatomical structure. The systems determine geometrical information of the second anatomical structure based on the reference MR image. The systems determine a target scanning protocol with respect to the target MR scan based on the geometrical information. The systems acquire a target MR image of the second anatomical structure by performing the target scan based on the target scanning protocol. In the target MR image, the second anatomical structure is not overlapped with other anatomical structures of the target subject.

Abstract: The present disclosure directs to a system and method for automated positioning of a subject. The method may include obtaining a scout image of a subject when the subject is positioned at a first position in an apparatus. The method may also include determining location information of a reference structure of the subject based on the scout image. The method may also include determining an offset between the first position of the subject relative to a characteristic point of the apparatus according to the location information of the reference structure. The method may further include moving the subject to a second position based on the offset. The method may still further include performing, using the apparatus, a procedure relating to a target structure of the subject located at the second position.

Abstract: Systems and methods for determining a target area relating to a subject situated on a table of a medical system are provided. The medical system may include a first device of a first modality and a second device of a second modality. In some embodiments, the system may: identify a second target area relating to the subject for performing a second operation using the second device; determine, based on the second target area, an initial target area relating to the subject for performing a first operation using the first device; and determine a first target area relating to the subject for performing the first operation using the first device by adjusting the initial target area.

Abstract: The present disclosure directs to a system and method for automated positioning of a subject. The method may include obtaining a scout image of a subject when the subject is positioned at a first position in an apparatus. The method may also include determining location information of a reference structure of the subject based on the scout image. The method may also include determining an offset between the first position of the subject relative to a characteristic point of the apparatus according to the location information of the reference structure. The method may further include moving the subject to a second position based on the offset. The method may still further include performing, using the apparatus, a procedure relating to a target structure of the subject located at the second position.

Abstract: Systems and methods for determining an ROI of a subject are provided. In some embodiments, the system may obtain a target image including the subject situated on a table. The system may also obtain a focus position associated with the ROI of the subject to be scanned or treated by a medical device in the target image. The system may further determine a target table position based on the focus position. In some embodiments, the system may obtain a model image corresponding to the subject. The system may also obtain a virtual area corresponding to a virtual ROI in the model image. The system may also obtain a positioning image of the subject. The system may further determine, in the positioning image, a target area corresponding to the ROI of the subject corresponding to the virtual ROI based on the virtual area and the positioning image.

Abstract: 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.

Abstract: 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.

Abstract: The present disclosure provides a system and method for imaging. The method may include obtaining a plurality of protocols for scanning a subject using a scanner, wherein the plurality of protocols correspond to a plurality of regions of the subject, respectively. The method may also include determining one or more stitching parameters between protocols corresponding to each pair of neighboring regions of the plurality of regions. The method may further include generating image stitching verification data associated with the plurality of regions based at least in part on at least one of the one or more stitching parameters between protocols corresponding to each pair of neighboring regions of the plurality of regions. The method may still further include directing the scanner to scan the subject based at least in part on the image stitching verification data.

Abstract: 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.

Abstract: The present disclosure directs to a system and method for automated positioning of a subject. The method may include obtaining a scout image of a subject when the subject is positioned at a first position in an apparatus. The method may also include determining location information of a reference structure of the subject based on the scout image. The method may also include determining an offset between the first position of the subject relative to a characteristic point of the apparatus according to the location information of the reference structure. The method may further include moving the subject to a second position based on the offset. The method may still further include performing, using the apparatus, a procedure relating to a target structure of the subject located at the second position.

Abstract: Systems and methods for determining an ROI of a subject are provided. In some embodiments, the system may obtain a target image including the subject situated on a table. The system may also obtain a focus position associated with the ROI of the subject to be scanned or treated by a medical device in the target image. The system may further determine a target table position based on the focus position. In some embodiments, the system may obtain a model image corresponding to the subject. The system may also obtain a virtual area corresponding to a virtual ROI in the model image. The system may also obtain a positioning image of the subject. The system may further determine, in the positioning image, a target area corresponding to the ROI of the subject corresponding to the virtual ROI based on the virtual area and the positioning image.