Patent · US Expired

Virtual frequency encoding of acquired NMR image data

US5537039A · kind A · utility

21Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 10, 1995
Grant dateJul 16, 1996
Priority date—
Expiry dateOct 10, 2015

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R33/4822
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Slabs are selected using a combination of a slab select gradient and selective RF excitation pulses to acquire 3D NMR data. Thinner 2D slices are selected within each slab by employing virtual frequency encoding of the acquired NMR signals. This encoding is achieved by stepping the value of the gradient in the slab select direction and concurrently changing the time interval between RF excitation and acquisition of the resulting NMR echo signal. A gradient recalled echo pulse sequence and a fast spin echo pulse sequence are described.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.