Establish and Apply the Evaluation System of Ultrasonic Integrated Technology for Prevention and Treatment of Acute Kidney Injury

Inclusion Criteria: * Subjects must satisfy the following criteria to be enrolled in the study: 1. Clinical diagnosis of acute or chronic kidney injury 2. Male or female, aged 18-80 years old 3. signed informed consent 4. Patients can breathe in, breathe out and hold their breathe with ease, communication without difficulty. Exclusion Criteria: * Potential subjects who meet any of the following criteria will be excluded from participating in the study: 1. Refuse to sign informed consent 2. allergy to micro bubble hexafluoride drug 3. Patients with cardiopulmonary insufficiency, pleural effusion, pulmonary infections 4. Patients with asthma, chronic bronchitis 5. Patients with pregnancy 6. Patients can't cooperate or have a difficulty in breathing in, breathing out or holding their breathe 7. Patients beening diagnosed with End-stage kidney disease.