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    实时组织弹性成像、声辐射力脉冲成像-声触诊组织定量技术与二维剪切波弹性成像对浅表器官病灶模型的诊断价值比较

    Comparison of diagnostic value of real-time tissue elastography, acoustic radiation force impulse-virtual touch tissue quantification and two-dimensional shear wave elastography in superficial organ lesion models

      摘要
    • 摘要:
      目的 比较实时组织弹性成像(RTE)、声辐射力脉冲成像-声触诊组织定量技术(ARFI-VTQ)与二维剪切波弹性成像(2D-SWE)3种技术在检测浅表器官病灶模型硬度中的诊断价值。
      方法 分别使用Hitachi公司HI VISION preirus型配备的具备RTE功能的高频线阵探头、Siemens公司Acuson S2000型配备的ARFI-VTQ高频线阵探头以及Supersonic imagine公司AixPlorer ShearWaveTM型配备的具备2D-SWE功能的高频线阵探头对硬度分别为8、14、45和80 kPa，直径为16.7 mm，深度为3 cm的4个浅表器官病灶模型进行超声弹性成像(UE)检测，每个浅表器官病灶模型各使用每种技术检测40次，将每种UE技术的测量数据分别分为组Ⅰ(8 kPa对14、45、80 kPa)、组Ⅱ(8、14 kPa对45、80 kPa)和组Ⅲ(8、14、45 kPa对80 kPa)，分别计算并比较RTE、ARFI-VTQ及2D-SWE的组Ⅰ、组Ⅱ和组Ⅲ的ROC曲线下面积(AUC)。
      结果 组Ⅰ中的2D-SWE诊断价值高于ARFI-VTQ(Z=5.00，P < 0.01)和RTE(Z=3.28，P < 0.01)，RTE与ARFI-VTQ间诊断价值差异无统计学意义(Z=1.58，P>0.05)。组Ⅱ和组Ⅲ中，RTE(Z=3.67、5.89，P < 0.01)和2D-SWE(Z=3.67、5.89，P < 0.01)诊断价值均高于ARFI-VTQ，RTE和2D-SWE诊断价值差异无统计学意义(Z=1.58、1.58，P>0.05)。
      结论 ARFI-VTQ对4种硬度浅表器官病灶模型诊断价值最低；RTE诊断价值居中；2D-SWE诊断价值最高，但该技术对硬度测量存在一定的低估。

       

      Abstract:
      Objective To compare the diagnostic value of real-time tissue elastography (RTE), acoustic radiation force impulse - virtual touch tissue quantification (ARFI-VTQ) and two-dimensional shear wave elastography (2D-SWE) in discerning the hardness of superficial organ lesion models.
      Methods Four superficial organ lesion models with hardness of 8, 14, 45 and 80 kPa, diameter of 16.7 mm and depth of 3 cm were examined by ultrasound elastography using the Hitachi HI VISION preirus high-frequency linear array probe equipped with RTE function, the Siemens Acuson S2000 high-frequency linear array probe equipped with ARFI-VTQ function, and the AixPlorer ShearWaveTM high-frequency linear array probe equipped with 2D-SWE function.Each lesion model was tested 40 times with each technique.The measured data of each elastic imaging technique were divided into group Ⅰ (8 kPa vs 14, 45, 80 kPa), group Ⅱ (8, 14 kPa vs 45, 80 kPa) and group Ⅲ (8, 14, 45 kPa vs 80 kPa), respectively.The area under the ROC curve (AUC) of RTE, ARFI-VTQ and 2D-SWE in each group were calculated and compared.
      Results In group Ⅰ, the diagnostic value of 2D-SWE was higher than ARFI-VTQ (Z=5.00, P < 0.01) and RTE (Z=3.28, P < 0.01), and there was no significant difference between RTE and ARFI-VTQ (Z=1.58, P>0.05).In both group Ⅱand group Ⅲ, the diagnostic value of RTE (Z=3.67 and 5.89, P < 0.01) and 2D-SWE (Z=3.67 and 5.89, P < 0.01) were higher than that of ARFI-VTQ, and there was no significant difference in the diagnostic value of RTE and 2D-SWE (Z=1.58 and 1.58, P>0.05).
      Conclusions ARFI-VTQ technique has the lowest diagnostic value for discerning four types of superficial organ lesions.The diagnostic value of RTE technique is in the middle.The 2D-SWE technique has the highest diagnostic value, but it underestimates the hardness measurement to some extent.

       

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