背向散射积分 integrated backscatter ; Ultrasonic integrated backscatter ; IBS ; IBS integral of backscatter

超声背向散射积分 integrated backscatter IBS ; intergrated backscatter ; IBS

心肌背向散射积分 integrated backscatter ; IBS

探讨心肌背向散射积分 integrated backscatter ; IBS

背向散射积分跨壁梯度 TGIB

背向散射积分值 Integrated Backscatter ; IBS

背向散射积分技术 Integrated Backscatter ; IBS

及校正的背向散射积分 calibrated integrated backscatter C-IBS

应用背向散射积分 integrated backscatter ; IBS

超声背向散射积分技术 integrated backscatter ; IBS