2) contrast of the light signal intensity
光强信号对比度
3) print contrast signal,PCS
照片对比度信号
4) signal comparison
信号对比
1.
So we can judge the initial arriving moment for reflected wave through signal comparison.
在地表波动测试中,若不考虑上部岩层不均匀性,与发射点距离相等的测点上测得的振动信号理应吻合,而当某测点最先有节理面反射纵波传播至时,其振动信号就与其它测点振动信号发生偏离,故可通过信号对比判断出该测点处节理反射波初至时刻,该方法应用于实测信号,判断出的节理反射波初至时刻误差<1%。
5) signal intensity ratio
信号强度比
1.
The signal intensity ratios(SIR,signal intensity at opposed-phase over signal intensity at in-phase) were calculated and compared among these conditions.
方法:回顾分析本院126例脊柱病变患者,包括31例恶性椎体肿瘤、38例急性椎体良性压缩性骨折、8例血管瘤、26例终板退变、18例局灶性骨髓脂肪变性及5例脊柱感染,计算各种病变正反回波的信号强度比(反相位/正相位,SIR),并对各组病例作对比和分析。
2.
ObjectiveTo explore the accuracy and clinical value of the MRI quantitative diagnostic,which are liver / muscle signal intensity ratio and T2 values in vitro iron concentration and liver iron deposition.
目的利用MRI肝脏/肌肉信号强度比值及肝脏T2值测定技术,探讨体外铁浓度及肝脏铁沉积的MRI定量诊断的准确性及临床应用价值。
6) signal amplitude ratio
信号幅度比
补充资料：X线对比度
X线对比度
影像学术语。均匀强度的X线穿过受检物体后产生的强度差异。X线对比度也称射线对比度。它
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条