The Morphology and Parameter Estimation of Cranial Ultrasound Spectrum Based on Cerebral Artery

The Morphology and Parameter Estimation of Cranial Ultrasound Spectrum Based on Cerebral Artery

1. Observe the changes of TCD/TCCD spectrum shape before and after lumbar puncture in patients with severe neurological disease.
2. Discuss the TCD/TCCD spectrum shape and parameters of cerebral arteries and neurocritical patients Correlation of intracranial pressure.

After entering the ICU, the subjects who meet the standards will undergo a full-body physical examination and basic vital signs assessment and monitoring, which mainly include specialized examinations of the nervous system, multimodal brain function testing, respiratory system monitoring and management, hemodynamic monitoring, and APACHEⅡ Score, GCS score, and perform routine general circulation, breathing management, sedation and analgesia management, temperature management, osmotic pressure management, lumbar puncture pressure measurement

Inclusion Criteria:

Aneurysmal subarachnoid hemorrhage (aSAH), traumatic brain injury (TBI), acute deficiency Blood stroke (AIS), acute cerebral hemorrhage (ICH), hypoxic ischemic encephalopathy (HIE), Sepsis-associated encephalopathy (SAE), intracranial tumor surgery; older than 18 years old, <85 Years old; patients who need lumbar puncture.

Exclusion Criteria:

1. Age <18 years old;
2. Pregnancy;
3. The condition of the temporal window is limited and the image cannot be obtained;
4. The frequency spectrum of bilateral cerebral arteries shows stenosis;
5. Patients with cerebral artery stenosis
6. Patients who have not obtained informed consent;