Abstract: Embodiments of the present disclosure provide an image processing method, a system, an apparatus, and a storage medium thereof. The image processing method may include obtaining a phantom image and a normalization standard and performing a first processing on the phantom image. The method may also include generate a recovery coefficient of the processed phantom image generated by the first processing; determining whether the recovery coefficient satisfies the normalization standard and in response to determining that the recovery coefficient satisfies the normalization standard, obtaining a target processing parameter. The target processing parameter is a processing parameter of the first processing when the recovery coefficient satisfies the normalization standard. The method may further include determining an image processing result by processing an image to be processed based on the target processing parameter.

Abstract: The present disclosure provides methods and systems for lesion region identification. The methods may include identifying a target region corresponding to at least one reference organ from a first medical image of a target subject. The methods may include determining, based on the target region, a reference threshold used for lesion detection. The methods may further include identifying, based on the reference threshold, a lesion region from the first medical image.

Abstract: The present disclosure provides systems and methods for medical imaging. The system may obtain a scout image of a subject lying on a scanning table. The scanning table may include N portions corresponding to N bed positions of a target scan, and an ith portion of the N portions may correspond to an ith bed position of the N bed positions. For the ith bed position, the system may determine one or more body parts of the subject located at the ith portion of the scanning table based on the scout image; and determine at least one scanning parameter or reconstruction parameter corresponding to the ith bed position based on the one or more body parts of the subject.

Abstract: Provide a method, system, and medium for processing an image. The method comprises: obtaining a plurality of dynamic frame images, each of the plurality of dynamic frame images at least including dynamic image information of a target region; and determining the time-activity curve by processing the plurality of dynamic frame images.

Abstract: The present disclosure relates to a system and method for medical imaging. An imaging device having a table may be provided. Scans of a subject located on the table at multiple table positions may be performed based on a scanning protocol, each scan covering a portion of the subject. Data may be acquired based on the scans of the subject. An image may be reconstructed based on the acquired data.