Abstract: A method of non-invasively assessing mitochondrial function in live tissue of a subject includes providing periodic hypoxia challenges to the subject during a cyclic oxygenation period, acquiring 4D BOLD fMRI data from the live tissue of the subject during the cyclic oxygenation period, and analyzing the acquired 4D BOLD fMRI data to determine a measure of mitochondrial function for each of a number of regions of the live tissue. Also, a system for non-invasively assessing mitochondrial function includes an fMRI system including a magnet, an RF system and a controller, wherein the controller is structured and configured to acquire 4D BOLD fMRI data from the live tissue of the subject during a cyclic oxygenation period wherein periodic hypoxia challenges are experienced by the subject, and analyze the acquired 4D BOLD fMRI data to determine a measure of mitochondrial function for each of a number of regions of the live tissue.

Abstract: A new low rank tensor (LRT) imaging strategy/methodology, specifically for quantitative cardiovascular magnetic resonance (CMR) multitasking, includes performing a low-rank tensor image model exploiting image correlation along multiple physiological and physical time dimensions, a non-ECG data acquisition strategy featuring minimal gaps in acquisition and frequent collection of auxiliary subspace training data, and a factored tensor reconstruction approach which enforces the LRT model.

Abstract: A new low rank tensor (LRT) imaging strategy/methodology, specifically for quantitative cardiovascular magnetic resonance (CMR) multitasking, includes performing a low-rank tensor image model exploiting image correlation along multiple physiological and physical time dimensions, a non-ECG data acquisition strategy featuring minimal gaps in acquisition and frequent collection of auxiliary subspace training data, and a factored tensor reconstruction approach which enforces the LRT model.