The Types segment is split between linear and macrocyclic gadolinium‑based contrast agents, a classification that underpins safety profiles and regulatory positioning. Linear agents, historically dominant, now represent roughly 40 % of the market but are experiencing a gradual decline due to heightened scrutiny over gadolinium retention and associated nephrogenic systemic fibrosis risks. In contrast, macrocyclic agents, characterized by a more stable chelate structure, have captured approximately 60 % of market share and are gaining traction in high‑volume jurisdictions that prioritize patient safety. Within the macrocyclic group, ionic and non‑ionic formulations further differentiate performance, yet both benefit from broader acceptance in advanced MRI protocols. The shift toward macrocyclic products is reflected in recent pricing trends and reimbursement policies, reinforcing their contribution to overall market growth. Consequently, the types taxonomy is a critical determinant of the Gadolinium-Based Contrast Agents segmentation, influencing R&D pipelines, market entry strategies, and long‑term revenue trajectories.