2021年2月
Development of a Suitable Actuator for Magnetic Resonance Elastography of the Psoas Major Muscle
Applied Magnetic Resonance
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- 巻
- 52
- 号
- 2
- 開始ページ
- 157
- 終了ページ
- 168
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s00723-020-01294-y
© 2020, Springer-Verlag GmbH Austria, part of Springer Nature. This study aimed to develop a refined actuator suitable for psoas major muscle (PM) MR elastography (MRE) and evaluate its measurement precision. MRE was performed on nine healthy volunteers. Discomfort under PM-MRE examinations was evaluated by discomfort scores using a four-point subjective scale. The performance of refined actuator was evaluated in detail; repeatability was evaluated using repeatability coefficients (%RC) according to the Quantitative Imaging Biomarker Alliance (QIBA) and reproducibility with different operators was evaluated using interclass correlation coefficients (ICC). The discomfort score was 1.4 ± 0.53 and it indicated refined actuator was sufficiently comfortable (no pain). In the repeatability study (n = 9), the %RC was approximately 19%, which was comparable to the limit required for clinical liver MREs by the QIBA (19%). In the reproducibility study, the ICCs were > 0.90 (n = 3), indicating that the refined actuator had almost perfect reproducibility. The refined actuator was suitable for PM-MREs and had acceptable repeatability and reproducibility. Refined actuator was expected to meet the standard set by the QIBA (for liver MRE).
- リンク情報
- ID情報
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- DOI : 10.1007/s00723-020-01294-y
- ISSN : 0937-9347
- eISSN : 1613-7507
- SCOPUS ID : 85094834703