• X-ray–driven imaging and spectroscopy emerge as the core biomedical imaging toolkit, spanning radiography, diffraction, particles sizing, and spectral analysis to visualize structure and quantify radiation effects [1], [6], [12], [13], [15].

• Neuroimaging advances consolidate functional and anatomical brain imaging through electro-encephalography for tumor localization, direct brain observation, and sub-cortical tumor study, signaling a shift toward imaging-based neurology [8], [9], [10].

• Chromosome biology with X-ray exposure crystallizes a cytogenetic imaging paradigm, documenting chromosomal aberrations, mitotic chromosome effects, and chromosomal typologies across plant models and mammalian-like systems [2], [3], [7], [13].

• Fluorescence-based microscopy establishes a molecular-imaging foundation, with fluorescence microscopy in biology and high-power variants enabling visualization of fluorescence pathways at the cellular level [14], [20].

• Early computational imaging and instrumentation ideas surface in illumination methods, photoelasticity theory, and digital image computation for cardiac imaging and vascular measurements [16], [18], [19].