Patent · US Expired

Efficient multi-slice acquisition with black blood contrast

US6498946B1 · kind B1 · utility

27Cited by

5References

32Claims

0Family size

Assignee

GE Medical Systems Global Technology Company, LLC · US

Inventors

Thomas Foo · Rockville, US
Zahi Fayad · New York, US

Key dates

Filing date	Oct 5, 2001
Grant date	Dec 24, 2002
Priority date	—
Expiry date	Oct 5, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/4835
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention includes a technique for efficient multi-slice fast spin echo image acquisition with black blood contrast in cardiac imaging. The technique includes applying a non-selective inversion pulse, followed by a re-inversion pulse that is slice-selective over a region encompassing a plurality of slice selections. Execution of a series of RF excitation pulses with fast spin echo readout is timed such that signal from blood is near a null point before acquiring data for each spatial slice. For greater contrast consistency, the flip angles for the excitation pulses occurring before the null point can be reduced, and those occurring after the null point can be increased.

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