Noise in MRI diagnostic rooms

The paper presents an acoustic analysis of noise levels in Magnetic Resonance Imaging (MRI) diagnostic rooms, including both mobile and portable laboratory configurations. Measurements were conducted to assess noise exposure to patients and medical staff during different MRI signal sequences: Diffusion-Weighted Imaging (DWI), Diffusion-Weighted Imaging with oscillating gradient (DWI-og), and Diffusion-Weighted Imaging Turbo Spin Echo (DWI-TSE). Results demonstrate that noise levels during MRI examinations often exceed occupational safety limits, with A-weighted equivalent levels (LAeq) reaching up to 94 dB. The study identifies the main sources of acoustic emissions and discusses implications for hearing protection and room design.