Table 2 LAeq and LZpk measured for four different brain research protocols. The noise levels experienced by the participant (columns 3 and 5) take into account 12.5 dB noise reduction by the ear plugs
From: Practical issues and limitations of brain attenuation correction on a simultaneous PET-MR scanner
Study number | Measured LAeq, dB(A) | LAeq experienced by participant, dB(A) | Measured LZpk, dB | LZpk experienced by the participant, dB |
|---|---|---|---|---|
1 | 93.5 | 81.0 | 110.5 | 98.0 |
2 | 92.8 | 80.3 | 112.5 | 100.0 |
3 | 94.3 | 81.8 | 126.6 | 114.1 |
4 | 91.9 | 79.4 | 144.5 | 132.0 |