ANISOTROPIC PROJECTION ENCODING: PULSE SEQUENCE

各向异性投影编码：脉冲序列

• 批准号: 6348164
• 负责人: steven andrew suddarth
• 金额: $ 3万
• 依托单位: DUKE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6348164
• 关键词: Mammalia; bioimaging /biomedical imaging; biomedical resource; human tissue; magnetic resonance imaging; model design /development; respiratory system; technology /technique

The diffusion of 3He in the live guinea pig lung will be studied with various methods. The time evolution of a slice profile will give an average measure of the diffusion with 2D spatial localization. Diffusion weighted imaging with radial acquisition will give another average measure. Spectroscopic studies with spatially selective RF pulses should give more quantitative data. In addition, measurements of T2* will be accomplished by taking successive projection reconstruction images and varying the acquisition delay.

研究~3He在活体豚鼠肺内的扩散。 方法多种多样。切片轮廓的时间演化将给出 具有2D空间局部化的扩散的平均度量。 径向采集的弥散加权成像将提供另一个 平均衡量标准。空间选择性射频的光谱研究 脉冲应该提供更多的定量数据。此外，测量结果 T2*将通过连续投影来实现 重建图像和改变采集延迟。