The goal of this observational study is to quantitatively assess the renal microcirculation changes by contrast-enhanced ultrasound (CEUS) and to obtain systemic hemodynamic information by ultrasound Doppler at the same time, to analyze the relationship between renal microcirculation changes and systemic hemodynamic changes, and to explore the diagnostic value of CEUS in critically ill acute kidney injury.
The main questions it aims to answer are: 1. To explore the quantitative parameters of contrast-enhanced ultrasound which can reflect the changes of renal microcirculation。 2. To explore the relationship between renal microcirculation and systemic hemodynamics。 3. To explore the value of quantitative evaluation of renal microcirculation changes by contrast-enhanced ultrasound in the diagnosis of acute kidney injury
Study Type
OBSERVATIONAL
Enrollment
60
Patients with acute kidney injury high risk factors (KDIGO 2012) will undergo a contrast-enhanced ultrasound within 24 hours of admission to the ICU
Acute kidney injury (according to KDIGO 2012 criteria)
Acute kidney injury occur or not
Time frame: Through study completion, an average of 7 days
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