TY - JOUR
T1 - Effect of acoustic noise reduction technology on image quality
T2 - a multivendor study
AU - Yamashiro, Takanobu
AU - Takatsu, Yasuo
AU - Morita, Kosuke
AU - Nakamura, Masafumi
AU - Yukimura, Yoshihiro
AU - Nakajima, Kazuhiro
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive licence to Japanese Society of Radiological Technology and Japan Society of Medical Physics.
PY - 2023/6
Y1 - 2023/6
N2 - The purpose of this study was to clarify the appropriate use of a combination of pulse sequences and acoustic noise reduction technology in general-purpose brain magnetic resonance imaging. Five pulse sequences commonly used in brain magnetic resonance imaging examinations—turbo spin-echo T2-weighted imaging, T1-weighted fluid-attenuated inversion recovery, T2-weighted fluid-attenuated inversion recovery, diffusion-weighted imaging, and magnetic resonance angiography—were performed on healthy participants at three vendors where acoustic noise reduction technology was available. The results showed that acoustic noise reduction technology reduced sound pressure levels and altered image quality in all pulse sequences across all vendors’ magnetic resonance imaging scanners. Although T2-weighted imaging and T1-weighted fluid-attenuated inversion recovery resulted in little image quality degradation, T2-weighted fluid-attenuated inversion recovery, diffusion-weighted imaging, and magnetic resonance angiography had significant image degradation. Therefore, acoustic noise reduction technology should be used with caution.
AB - The purpose of this study was to clarify the appropriate use of a combination of pulse sequences and acoustic noise reduction technology in general-purpose brain magnetic resonance imaging. Five pulse sequences commonly used in brain magnetic resonance imaging examinations—turbo spin-echo T2-weighted imaging, T1-weighted fluid-attenuated inversion recovery, T2-weighted fluid-attenuated inversion recovery, diffusion-weighted imaging, and magnetic resonance angiography—were performed on healthy participants at three vendors where acoustic noise reduction technology was available. The results showed that acoustic noise reduction technology reduced sound pressure levels and altered image quality in all pulse sequences across all vendors’ magnetic resonance imaging scanners. Although T2-weighted imaging and T1-weighted fluid-attenuated inversion recovery resulted in little image quality degradation, T2-weighted fluid-attenuated inversion recovery, diffusion-weighted imaging, and magnetic resonance angiography had significant image degradation. Therefore, acoustic noise reduction technology should be used with caution.
KW - Acoustic noise
KW - Gradient waveform
KW - Hearing protection
KW - Magnetic resonance imaging
KW - Noise reduction
UR - https://www.scopus.com/pages/publications/85150696019
UR - https://www.scopus.com/pages/publications/85150696019#tab=citedBy
U2 - 10.1007/s12194-023-00712-7
DO - 10.1007/s12194-023-00712-7
M3 - Article
C2 - 36964891
AN - SCOPUS:85150696019
SN - 1865-0333
VL - 16
SP - 235
EP - 243
JO - Radiological Physics and Technology
JF - Radiological Physics and Technology
IS - 2
ER -