MR 7700 Multinuclear Application Clinical Study

Inclusion Criteria: * 1\. HCC patient group * Age ≥ 18 years; * With clear consciousness, ability to cooperate, and autonomous behavior; * Voluntary agreement to participate in this clinical trial and signing of the subject's informed consent form; * Patients diagnosed with primary hepatocellular carcinoma by imaging or clinical diagnosis, and who have not received tumor treatment. * 2\. Healthy control group * Age ≥ 18 years; * With clear consciousness, ability to cooperate, and autonomous behavior; * Voluntary agreement to participate in this clinical trial and signing of the subject's informed consent form; * No previous history of liver disease. Exclusion Criteria: * HCC patient group and healthy control group * Patients with claustrophobia. * Subject's body temperature \> 39.5°C on the day of scanning. * Females who plan to be pregnant within 6 months, and pregnant and lactating females. * Patients with other implants, prostheses, foreign bodies, patches, etc. that are not suitable for MRI examination; patients with electronic implants, such as pacemakers, stimulators, insulin pumps, cochlear implants, etc. * Critically ill subjects with various resuscitation devices or those with any emergency medical condition requiring first aid. * Subjects with poor compliance are considered to be excluded by the investigators. * Subjects who are not considered suitable for this trial by the investigators.