Segmentation by type classifies Interventional Radiology Drainage Procedures according to the technical approach and device architecture employed. Percutaneous catheter drainage is the predominant modality, leveraging real‑time fluoroscopic or CT guidance to insert drainage catheters; its broad applicability across biliary, urinary, and abscess indications makes it the primary revenue generator. Endoscopic drainage merges endoscopic visualization with radiologic guidance, chiefly used for biliary and pancreatic ducts, and commands a distinct cost structure due to specialized accessories. Image‑guided aspiration relies on ultrasound or CT to evacuate fluid collections without leaving a catheter, offering a lower‑cost, short‑duration alternative that still contributes appreciably to procedural volume. Hybrid techniques, such as combined percutaneous‑endoscopic or robotic‑assisted drainage, are emerging, reflecting incremental adoption of advanced navigation platforms and accounting for a modest but increasing share of the market. By isolating these technical categories, the market taxonomy reveals differential growth trajectories, capital intensity, and reimbursement pathways, enabling stakeholders to allocate resources in alignment with procedural economics.