Systems and methods for magnetic resonance imaging

A system, comprising:

• at least one non-transitory computer-readable medium including a set of instructions;
• and
• at least one processor in communication with the at least one non-transitory computer-readable medium, wherein when executing the set of instructions, the at least one processor causes the system to perform operations including:
• obtaining a reference magnetic resonance (MR) image of a target subject, wherein the reference MR image is acquired by performing a reference MR scan on multiple anatomical structures 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 one of the multiple anatomical structures, and a size of a field of view (FOV) of the reference MR scan is larger than a size of an FOV of the target MR scan;
• determining, based on the reference MR image of the target subject, geometrical information of the second anatomical structure of the target subject;
• determining a target scanning protocol with respect to the target MR scan based on the geometrical information of the second anatomical structure of the target subject;
• and
• acquiring a target MR image of the second anatomical structure of the target subject by performing the target scan based on the target scanning protocol, wherein in the target MR image, the second anatomical structure is not overlapped with other anatomical structures of the target subject.

An MRI system, comprising:

• at least one non-transitory computer-readable medium including a set of instructions;
• and
• at least one processor in communication with the at least one non-transitory computer-readable medium, wherein when executing the set of instructions, the at least one processor causes the system to perform operations including:
• obtaining a reference magnetic resonance (MR) image of a target subject, wherein the reference MR image includes multiple anatomical structures of the target subject;
• determining a target anatomical structure of the target subject based on the reference MR image of the target subject, the target anatomical structure being one of the multiple anatomical structures of the target subject;
• determining a target scanning protocol by optimizing, based on geometrical information of the target anatomical structure, a scanning protocol to be scanned, wherein a size of a field of view (FOV) for obtaining the reference MR image is larger than a size of an FOV of the target scanning protocol;
• and
• acquiring a target MR image of the target anatomical structure of the target subject by performing the target scanning protocol, wherein in the target MR image, the target anatomical structure is not overlapped with other anatomical structures of the target subject.