Surveying Current Practices in the Use of Gadolinium-Based Contrast Agents for Routine Brain Magnetic Resonance Imaging in the Evaluation of Isolated Growth Hormone Deficiency Among U.S. Pediatric Endocrinologists

Introduction: This survey investigates brain MRI practices for isolated GHD among Pediatric Endocrine Society (PES) members, focusing on gadolinium-based contrast agents (GBCAs) versus non-contrast MRI. Methods: A 15-question survey was distributed to 1,553 PES members, capturing data on GBCA usage, non-contrast imaging access, and awareness of gadolinium retention. Results: 85% of respondents routinely order brain MRIs for isolated GHD, with 60% using GBCAs. Most respondents have access to high-resolution non-contrast imaging, though 54% are unaware of gadolinium retention risks. Conclusion: High-resolution non-contrast MRI demonstrates diagnostic efficacy, suggesting a shift away from GBCAs in clinic practice for isolated GHD. The survey forms the basis to update PES guidelines in the evaluation of isolated GHD.