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(a) Tubular phantom made of fluorescent polymethyl methacrylate (PMMA) with 3-mm lumen. The drug-eluting stent (DES) was marked with fluorescent paint and deployed in the lumen. (b) Fluorescence intensity spectra of phantom components and the spectral bands of the WSM. (c) Fluorescence intensity images, average lifetime images, and intensity weighted lifetime images of four spectral channels.
