Quantitative imaging is a research area that involves the use of advanced imaging techniques to quantify and measure biological processes, structures, and properties within living organisms. This field combines principles of biology, physics, chemistry, and mathematics to develop imaging methods that provide precise and quantitative data about various biological systems. Some common techniques used in quantitative imaging include magnetic resonance imaging (MRI), computed tomography (CT), positron emission tomography (PET), and optical imaging. This research area is important for understanding disease processes, assessing treatment responses, and advancing medical diagnostics and therapeutics.