[Intraoperative Magnetic Resonance Imaging in Pituitary Surgery].

Intraoperative magnetic resonance imaging (iMRI) improves the pituitary adenoma resection rate (GTR) by detecting small residual tumors and enabling additional resection. Consequently, complete resection is easier to achieve during the initial surgery, which reduces the risk of reoperation. However, the introduction and maintenance of iMRI implies high costs and extended surgical time. In the United States, estimates suggest that the long-term introduction of iMRI in pituitary surgery may lead to cost savings. Further research is needed to explore the added value of iMRI for pituitary surgeries beyond GTR and clarify the criteria for selecting cases that would benefit from iMRI.