Diffusion Model‐Enhanced In Vivo Fluorescence Imaging for Spatiotemporal Vascular Visualization
Near‐infrared (NIR) fluorescence imaging enables real‐time vascular visualization, but conventional indocyanine green (ICG) imaging is limited by shallow tissue penetration, low contrast, and poor spatial resolution. Lead sulfide (PbS) quantum dots in the NIR‐IIb window (1 500–1 700 nm) yield superior images yet face...