The MR Overlays segmentation by application delineates five principal use‑cases that collectively drive market revenue. Surgical navigation accounts for the largest share, roughly 35 % of total sales, because it enables real‑time anatomical guidance across orthopedic, neurosurgical, and general procedures, prompting the highest unit price and volume uptake. Interventional radiology follows at 25 %, where overlays assist catheter placement and tumor ablation, benefitting from expanding minimally invasive suites. Cardiology contributes about 20 %; overlay of coronary anatomy during electrophysiology and structural interventions justifies premium pricing and steady adoption. Orthopedics represents 15 % of the market, primarily through pre‑operative planning and intra‑operative alignment verification, a niche with moderate growth. The residual 5 % is captured by research and education, where academic institutions employ overlays for simulation and training, generating limited but strategically important revenue. Together, these application segments map directly onto the pie‑chart in the chartData section, illustrating their proportional impact on the overall MR Overlays market size.