公开(公告)号：US11821971B2

公开(公告)日：2023-11-21

申请号：US17765315

申请日：2021-09-07

Applicant: MUSC Foundation for Research Development

Inventor： Dale H. Mugler ,  William S. Clary

IPC: G01R33/46 ,  G01R33/485

CPC classification number: G01R33/4625 ,  G01R33/485

Abstract: A method comprising collecting magnetic resonance imaging (MRI) scanner data corresponding to a region of interest, establishing a spectral peak profile associated with at least one metabolite in the region of interest, wherein the spectral peak profile comprises a term in the FID vector signal included in the collected MRI scanner data, selecting at least three counter indices and corresponding points on the spectral peak profile to compute a linear fractional transformation (LFT), computing an N-dimensional vector outlining a spectral circle in a complex plane by applying the LFT to each counter index included in a set of equally-spaced counter indices associated with a three-dimensional spectrum representation of the collected MRI scanner data, shifting the spectral circle to eliminate a baseline offset for a magnitude spectrum associated with the complex plane, rotating the shifted spectral circle to produce a rotated spectral circle.

公开(公告)号：US20230194637A1

公开(公告)日：2023-06-22

申请号：US17765315

申请日：2021-09-07

Applicant: MUSC Foundation for Research Development

Inventor： Dale H. Mugler ,  W. Stuart Clary

IPC: G01R33/46

CPC classification number: G01R33/4625

Abstract: A method comprising collecting magnetic resonance imaging (MRI) scanner data corresponding to a region of interest, establishing a spectral peak profile associated with at least one metabolite in the region of interest, wherein the spectral peak profile comprises a term in the FID vector signal included in the collected MRI scanner data, selecting at least three counter indices and corresponding points on the spectral peak profile to compute a linear fractional transformation (LFT), computing an N-dimensional vector outlining a spectral circle in a complex plane by applying the LFT to each counter index included in a set of equally-spaced counter indices associated with a three-dimensional spectrum representation of the collected MRI scanner data, shifting the spectral circle to eliminate a baseline offset for a magnitude spectrum associated with the complex plane, rotating the shifted spectral circle to produce a rotated spectral circle.