The Intravascular Ultrasound System (IVUS) segmentation by application is anchored in three primary clinical uses: Coronary artery disease (CAD), Peripheral artery disease (PAD), and Chronic total occlusion (CTO). CAD accounts for the largest share because it drives demand for high‑resolution plaque characterization during percutaneous coronary interventions, directly influencing procedural volume and device pricing. PAD, while smaller, contributes a steady growth vector as aging populations increase the prevalence of lower‑extremity arterial stenoses, prompting adoption of IVUS for lesion assessment and stent optimization. CTO represents a niche but high‑value segment; its complexity necessitates advanced imaging to guide recanalization, thereby commanding premium pricing and higher per‑procedure revenue. Each application’s distinct procedural frequency, reimbursement landscape, and technology intensity collectively shape the overall IVUS market size, with CAD providing the bulk of revenue, PAD delivering volume stability, and CTO adding incremental high‑margin growth.