A Study on Hemodynamic Relationship Including Cerebral Blood Flow Using Phase Contrast and Signal Intensity Gradient of Brain Magnetic Resonance Imaging, and Carotid Doppler Ultrasound
试验速览
- 阶段
- 不适用
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- Cerebral blood flow correlation
研究概览
简要总结
Cerebral blood flow measurement, which is applied to patients with cerebrovascular-related diseases, provides useful information about hemodynamic status. There was a method using Doppler ultrasound and phase contrast (PC) MRI, but it was not widely used in clinical practice due to limitations in reproducibility between examiners, complexity of procedure, and time-intensive protocol. We intend to measure cerebral blood flow through the signal-intensity gradient (SIG) technique using Time-of-Flight (TOF) of brain magnetic resonance imaging, which can compensate for the shortcomings of the existing research methods. In addition, by analyzing the correlation with the previous methods, Doppler ultrasound and PC MRI, we will evaluate the effectiveness of our new method.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients 18 years of age or older who have been admitted to the neurology department due to a stroke, and those who have already performed brain magnetic resonance imaging
- •Among the patients (1) who underwent carotid artery Doppler ultrasound
- •Patients who fully understand the research objectives and procedures and wish to participate in clinical research voluntarily
- •If a patient is not fully understood due to a decrease in awareness or consciousness, the consent of the legal representative is required
排除标准
- •Patients whose extracranial artery occlusion or severe stenosis was confirmed in brain magnetic resonance images.
- •Those who judge that the subject is unsuitable for participation in clinical research due to other reasons.
结局指标
主要结局
Cerebral blood flow correlation
时间窗: After completion of recruitment, average 1 year
Cerebral blood flow correlation between 3 tests (SIG, PC MR, US)
次要结局
未报告次要终点
研究者
Chan-Hyuk Lee
Professor
Chonbuk National University Hospital