Application segmentation delineates the clinical contexts in which MR imaging supports neurosurgical decision‑making. Tumor resection accounts for the largest share, roughly 40 % of total spend, because high‑resolution structural and functional sequences are essential for pre‑operative planning, intra‑operative navigation, and postoperative surveillance of malignant and benign neoplasms. Vascular malformation interventions—aneurysm clipping, arteriovenous malformation embolisation—represent about 20 % of the market, driven by the need for time‑of‑flight MR angiography and susceptibility‑weighted imaging to map complex vasculature. Functional neurosurgery (deep brain stimulation, lesioning) consumes near 15 % of revenues, reflecting the growing reliance on tractography and functional MRI to locate eloquent cortex and subcortical pathways. Spine surgery also occupies roughly 15 %, where MR provides detailed disc, cord, and foraminal assessment that guides decompression and fusion procedures. The remaining 10 % falls under other applications such as epilepsy monitoring and pediatric cranial reconstruction, each contributing modestly but collectively influencing technology adoption rates. This MR Imaging in Neurosurgery segmentation illustrates how clinical demand directly shapes market size distribution.