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14.1 Introduction
Functional imaging is a powerful tool for investigating bio-
logical signaling, disease processes, and potential therapies in
both in vivo and in vitro systems. Microscopy, including con-
focal and multiphoton microscopy, has been the standard for
high-resolution functional imaging in live cells and tissues.
However, these microscopy techniques suer from relatively
shallow imaging depths. Magnetic resonance imaging (MRI)
and PET have been the standard for functional imaging deep
within the body, with the caveat of relatively poor resolution.
Optical coherence tomography (OCT) lls a niche ...