Dynamic contrast-enhanced magnetic resonance imaging reconstruction method and apparatus, and magnetic resonance imaging system

A dynamic contrast-enhanced magnetic resonance imaging reconstruction apparatus, comprising:

• a K-space data acquisition module configured to, in preparation to inject a contrast agent and/or during injection thereof:
• scan an imaging target using a dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) sequence to scan an imaging target, and
• acquire K-space data of each phase with high temporal resolution using a high temporal resolution scanning parameter value;
• a high temporal resolution image reconstruction module configured to reconstruct an image of each phase with high temporal resolution, based on the acquired K-space data of each phase with high temporal resolution;
• and
• a low temporal resolution image reconstruction module configured to:
• in a complex field, sum and then average adjacent K-space data of multiple phases with high temporal resolution, based on:
• a low temporal resolution reconstruction parameter value, and the high temporal resolution scanning parameter value used when acquiring K-space data of each phase with high temporal resolution;
• and
• perform image reconstruction to K-space data obtained after averaging to obtain an image of each phase with low temporal resolution.

A dynamic contrast-enhanced magnetic resonance imaging reconstruction apparatus, comprising:

• one or more processors;
• and
• memory storing instructions that, when executed by the one or more processors, cause the apparatus to:
• acquire, using a dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) sequence to scan an imaging target, and a received high temporal resolution scanning parameter value, K-space data of each phase with high temporal resolution in preparation of injection of a contrast agent and during injection thereof;
• reconstruct, based on the acquired K-space data of each phase with high temporal resolution, an image of each phase with high temporal resolution;
• and
• based on a received low temporal resolution reconstruction parameter value and the high temporal resolution scanning parameter value used when acquiring K-space data of each phase with high temporal resolution:
• sum and average, in a complex field, of adjacent K-space data of multiple phases with high temporal resolution;
• and
• perform image reconstruction of K-space data obtained after averaging to obtain an image of each phase with low temporal resolution.