Ge Medical Systems Global Technology Company, LLC

The Hospital for Sick Children

Sunnybrook Health Sciences Centre

Christopher MacGowan

Graham Arnold Wright

Marshall Stephen Sussman

Venkat R Swaminathan

Christopher Wernik

A method and system for determination of oxygen saturation in blood flowing in a vessel using magnetic resonance (MR). An MR image sequence is acquired with different echo time (TE) encoding, and different Fourier velocity encoding (FVE). A Fourier transformation is applied along the velocity dimension to determine a velocity distribution of tissue signals in each voxel of the image sequence. Tissue signals indicative of moving tissues are separated from tissue signals indicative of static tissue, based on the velocity distribution. Oxygen saturation in blood may then be determined using only the tissue signals indicative of flowing blood.

Magnetic resonance-based method and system for determination of oxygen saturation in flowing blood

A system and method for adaptive averaging of velocity spectra using variable density trajectories, comprising: acquiring at least one series of velocity spectra using interleaved variable density trajectories and sampling low k data more often or more densely than high k data, the series of velocity spectra further comprising at least one spectrum; identifying a series of velocity spectra that comprises at least one velocity spectrum as a template, aligning at least one of the acquired series of velocity spectra with the template using low k data; and averaging the aligned spectra, the averaging further comprising averaging the low k data of the aligned spectra, and combining the averaged low k data with the high k data of the aligned spectra, wherein the combination produces enhanced spectra.

System and method for generating spectra

Growing community of inventors

Toronto, Canada

Christopher MacGowan