| 摘要 |
A method and apparatus for producing two-dimensional, plan view images of in vivo blood flow networks using unique nuclear magnetic resonance (NMR) pulse sequences are disclosed. The method teaches the use of a pair of 90 DEG selective pulses separated by a delay time optimized to provide images with enhanced blood flow contrast by discriminating against stationary media surrounding the blood flow path. For the instant method, two-dimensional images are compiled by the illustrative apparatus using a collection of NMR slice data, wherein each slice reflects a one-dimensional projection of NMR received signal data in a thin planar slab selected to be generally orthogonal to the primary blood flow network. Further alternative embodiments discuss the use of free induction decay (FID) signals, as well as single pulse and multiple pulse spin echo sequences. |
