[3] His thesis at the University of Alberta was conducted under the supervision of Peter S. Allen in 1990 and titled Some mechanisms of water proton NMR relaxation in model tissue systems.

[7] By 2002, Menon was an associate professor in the Department of Diagnostic Radiology and Nuclear Medicine at the University of Western Ontario (UWO) and held a Canada Research Chair in Functional Neuroimaging.

[11] Following the renewal of his Tier 1 Canada Research Chair,[12] Menon collaborated with PhD candidate Matthew Quinn to discover if iron deposits in the brain are a cause or consequence of Multiple Sclerosis.

[13][14] Based on this research, Menon then developed a new technique to track the progression of Multiple Sclerosis by measuring damage in specific areas of the brain called Quantitative Susceptibility Magnetic Resonance Imaging.

[15] His contributions to advancements in fMRI and ultra-high-field MRI were later recognized with an election of Fellowship to the International Society for Magnetic Resonance in Medicine[16] and Canadian Academy of Health Sciences.