Patent ID: 6600316
Filing Date: 2003-07-29
Classification: G01R,G01V

Abstract:
A method of nuclear magnetic resonance measurement of a medium, comprising:(a) magnetically polarizing nuclei in said medium with a static magnetic field; (b) defining at least two sensitive volumes of the medium, each said sensitive volume having an associated frequency of a radio frequency (RF) signal; (c) defining a pulse sequence associated with each of the at least two sensitive volumes, each said defined pulse sequence comprising at least one sub-sequence having a saturation pulse, a recovery pulse, at least one refocusing pulse, and a wait time between the saturation pulse and the recovery pulse; (d) defining a distribution of time intervals ranging from a minimum time to a maximum time; (e) selecting said plurality of wait times as having values substantially equal to time intervals from said distribution of time intervals; and (f) acquiring NMR pulse echo data using an acquisition pulse sequence comprising an interleaved sequence of said defined pulse sequences having said selected wait times.