Quality control phantom and evaluation method for magnetic resonance arterial spin labeling perfusion imaging

A quantitative evaluation method for magnetic resonance arterial spin labeling perfusion imaging, comprising:

• performing magnetic resonance arterial spin labeling sequence scanning on a quality control phantom for magnetic resonance arterial spin labeling perfusion imaging in a working state by using a magnetic resonance system, the quality control phantom for magnetic resonance arterial spin labeling perfusion imaging comprising:
• a phantom main body;
• a container, a circulating liquid being provided in the container;
• a tube, comprising a first tube and a second tube, one end of the first tube being in communication with the container, the other end being in communication with a liquid inlet of the phantom main body, one end of the second tube being in communication with the container, the other end being in communication with a liquid outlet of the phantom main body, and the first tube, the phantom main body, the second tube and the container jointly forming a closed loop;
• and
• a pump, provided on the first tube and used to drive the circulating liquid to circulate along the closed loop to generate a perfusion signal in the phantom main body;
• recording parameters of a magnetic resonance arterial spin labeling sequence, and obtaining a control image and a label image of the phantom after scanning;
• calculating a cerebral blood flow through the control image and the label image;
• performing verification by comparing the calculated cerebral blood flow with an actual flow value of a controllable flow pump.