The Molecular Breast Imaging segmentation by type distinguishes three principal device architectures: conventional gamma‑camera systems, hybrid SPECT/CT platforms, and fully digital photon‑counting detectors. Gamma‑camera units, built on scintillation crystals coupled to photomultiplier tubes, remain the dominant configuration, accounting for roughly 55 % of total equipment sales because of their established supply chain and lower capital outlay. Hybrid SPECT/CT combines functional gamma imaging with low‑dose CT anatomical mapping, enabling superior lesion localization; it commands an expanding 30 % share as hospitals upgrade to multi‑modal suites. Digital photon‑counting detectors employ semiconductor sensors that directly convert gamma photons to digital signals, delivering higher spatial resolution and reduced noise; currently they represent about 15 % of the market, driven by specialized oncology centers seeking quantitative precision. Pricing gaps, with gamma‑camera systems typically under $250,000 versus hybrid platforms above $500,000, create tiered adoption patterns that directly affect each type’s revenue share.