Brain Ultrasound

1, B-type ultrasound craniocerebral examination is mainly used for children under 2 years of age who are not closed, through the Tuen Mun as a "sound window" for scanning. 2, transcranial color Doppler imaging through the sputum window, pillow window, sputum window exploration, can explore the cerebral artery, according to the intracranial blood vessel flow rate, bandwidth, abnormal flow or audio abnormalities, etc., applied to cerebrovascular diseases Diagnosis and classification of causes. Basic Information Specialist classification: neurological examination classification: ultrasound Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: When the cerebral venous malformation and dural arteriovenous malformation occur, the examination value is lower than the normal value. Normal value: Adult third ventricle width: 1.7-2.9mm Above normal: In the case of a skull base fracture, the value of the skull is higher than the normal value. negative: Positive: Tips: Keep a normal mindset. Normal value The third ventricle of the adult brain is 2.3±0.6mm wide. Clinical significance Abnormal results: (1) The quality of the immediate ultrasound image of the brain is greatly affected by the skull. So far, the application of ultrasound imaging has been limited to infants and newborns whose sputum has not closed within 2 years of age. (2) Transcranial ultrasound for the diagnosis of adolescents and some people with brain abscess, intracranial space-occupying lesions and interventional therapy may have certain application value. (3) Color ultrasound and transcranial Doppler TCD were used to examine the carotid artery, vertebral artery and its lesions, and the intracranial arterial blood flow was detected. It is widely used to check various diseases such as craniocerebral malformations and arterial stenosis. Need to check the crowd: Intracranial hemorrhage, neonatal intracerebral hemorrhage, subdural hemorrhage, subarachnoid hemorrhage and other symptoms, children under 2 years of age of patent closure. Low results may be diseases: maxillofacial neurofibroma, open craniocerebral injury, high intracranial hemorrhage in children may be diseases: skull defect, cavernous sinus thrombosis, mental retardation, neonatal bilirubin encephalopathy, meningeal sarcoma, liver bean Nucleolysis, pediatric chronic subdural hematoma considerations Preparation before inspection: No special preparation is required, as long as the child is in a relatively quiet state, and generally no sedative is required. Requirements for inspection: Different diseases are examined at different times and have different pertinence: 1, intracranial hemorrhage: the vast majority occurred 3 days to 1 week after birth examination, can detect 90% -95% of children with intracranial hemorrhage. Severe and unstable intracranial hemorrhage should be reviewed as appropriate until stable. A 1-2 month review can be used to understand the final absorption of bleeding. 2, ischemic hypoxic brain damage: a history of neonatal hypoxia, such as fetal distress, postpartum asphyxia or clinical manifestations related to brain injury should be performed within 24 hours of ultrasound, according to the severity, 72 hours Can be reviewed daily, 7-10 days to observe whether the brain edema is completely recovered, 3-4 weeks to understand whether there are residual lesions in the brain. Inspection process Inspection Method: 1 Ultrasound detection of epidural brain lesions through the bone window, ultrasound guided biopsy. 2 Ultrasound monitoring of brain abscess aspiration, hydrocephalus indwelling catheter and decompression. 3 Brain tumors were placed under ultrasound guidance with radioactive cesium for internal irradiation treatment. Methods The high-frequency convex array small ultrasound probe was used to examine the brain of premature infants. The maximum blood flow velocity (PS) and resistance index (RI) of middle cerebral artery (MCA) were measured by color Doppler ultrasound. Not suitable for the crowd Inappropriate people: Generally there are no people who are not suitable. Adverse reactions and risks Generally, this examination does not have too many adverse reactions and does not have much influence on the body.