REDUCE RF POWER REQUIREMENTS OF MULTISLICE IMAGING W/ SINGLE ADIABATIC FREQUENCY

降低单绝热频率多切片成像的射频功率要求

• 批准号: 6314440
• 负责人: MICHAEL GARWOOD
• 金额: $ 3.8万
• 依托单位: UNIVERSITY OF MINNESOTA
• 依托单位国家: 美国
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-06-01 至 2001-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6314440
• 关键词: bioimaging /biomedical imaging; biomedical resource; cognition; communication behavior; female; human subject; magnetic resonance imaging; male; mental disorders; technology /technique

One of the originally proposed goals was to establish magnetization preparation for contrast generation using B1 independent adiabatic pulses for a variety of imaging applications to overcome B1 variations encountered at high fields and use surface coils for transmission and reception for imaging, a necessity at the high fields due to difficulties of using "body" coils. Such contrast preparations were initially developed and implemented for cardiac "tagging" using segmented BIR-4 or adiabatic DANTE pulses. Last year, a novel adiabatic contrast preparation in spin-echo imaging has also been introduced, yielding excellent contrast and a reduction in power deposition in human brain imaging at 4T.

最初提出的目标之一是建立