NMR Imaging of the transverse relaxation time using multiple spin echo sequences
Blood vessel imaging system using nuclear magnetic resonance
NMR method for measuring and imaging fluid flow
Method for rapid acquisition of NMR data
Nuclear magnetic resonance flow imaging
Method and apparatus for NMR detection and imaging of flowing fluid nuclei
NMR multiple-echo phase-contrast blood flow imaging Patent #: 4609872
ApplicationNo. 06/835683 filed on 03/03/1986
US Classes:600/419, Of fluid flow324/306, Determine fluid flow rate324/309To obtain localized resonance within a sample
ExaminersPrimary: Kamm, William E.
Assistant: Smith, Ruth S.
Attorney, Agent or Firm
International ClassesG01R 33/54 (20060101)
G01R 33/563 (20060101)
AbstractMagnetic field gradient and radio-frequency (RF) pulse signal sequences permitting moving nuclear spins to be selectively detected and then displayed as projected angiographic data in a nuclear magnetic resonance (NMR) image, without the use of contrast agents. The method allows the intensity of an image pixel to be determined by the macroscopic detected spin velocity and can provide essentially complete suppression of non-moving spins. Resulting images have high signal-intensity dynamic range for detected vessels. The selected detection of moving flows is not dependent upon pulsatile flow so that venous and arterial structures are equally as well visualized in high-resolution NMR angiographic images.