评估超声波衰减系数的质量 对于肝脏脂肪量化的结果
Giovanna Ferraioli1, Laura Maiocchi2, Richard G Barr3,4
1Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche, University of Pavia, 27100 Pavia, Italy.
Diagnostics (Basel, Switzerland)
|October 16, 2024
概括
超声波衰减系数 (AC) 对于肝脂肪量化的准确性不受使用较少测量或使用平均值而不是中位数的影响. 质量标准,如四分位数范围与中位数比率 (IQR/M),不会显著影响诊断性能.
科学领域:
- 医疗成像医学成像
- 肝病学 肝病学是一种肝病学.
- 定量超声波检查是什么
背景情况:
- 超声波衰减系数 (AC) 算法量化肝脏脂肪.
- 质量标准 (IQR/M) 和值类型 (中位数与平均值) 对交流精度的影响尚不清楚.
研究的目的:
- 评估质量标准是否提高了基于AC的肝脂肪量化的准确性.
- 为了比较中位数与平均AC值的诊断性能.
主要方法:
- 在Aplio i800系统上使用衰减成像 (ATI) 算法进行交流测量.
- 在5次或3次收购中,AC中位数 (AC-M) 和平均值 (AC-A) 的比较.
- 用不同的IQR/M和标准偏差/平均值 (SD/A) 值分析诊断性能.
- 磁共振成像质子密度脂肪分数 (MRI-PDFF) 作为参考标准.
主要成果:
- 在AC-5A,AC-3A和AC-5M之间有很好的一致性 (CCC:0.99-0.96).
- 在交流测量和MRI-PDFF之间几乎有完美的相关性.
- 诊断准确度没有受到IQR/M或SD/A水平的显著影响.
结论:
- 基于AC的肝脂肪量化准确性很强.
- 将收购从5个减少到3个并不会影响准确性.
- 使用平均交流值与中位数值同样有效.
关键词:
马斯尔德 马斯尔德是什么意思在PDFF中,PDFF是指PDFF.准确性研究研究准确性研究.减弱系数 减弱系数慢性肝脏疾病 慢性肝脏疾病脂肪量化量化的脂肪量化.肝脏肥胖症 肝脏肥胖症超声波超声波是指超声波的使用.更多相关视频
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