Xiao Rui, Shao Qiang, Zhao Ning, Liu Fen, Qian Ke-Jian
Department of Intensive Care Medicine, First Affiliated Hospital of Nanchang University, Nanchang 330006, Jiangxi Province, China.
World J Clin Cases. 2021 Jul 26;9(21):5889-5899. doi: 10.12998/wjcc.v9.i21.5889.
There is no research on quantitative pleural line movement. In this study, we assume that tissue Doppler and its quantitative technology can quantify the pleural line movement and can be used to diagnose pneumothorax.
To evaluate the quantitative assessment of pleural line movement measured by tissue Doppler imaging (TDI) for pneumothorax diagnosis.
Adult patients ( = 45) diagnosed with unilateral pneumothorax were included in this study. Each patient underwent TDI of both lungs. The pneumothorax side and contralateral normal lung side were compared using several indices obtained from TDI: peak pleural line velocity (PVmax), peak chest wall tissue velocity (CVmax), peak pleural line strain value (PS), peak chest wall tissue strain value (CS), PV/CV and PS/CS. The receiver operating characteristic analysis was used to evaluate the performance of these quantitative assessments for pneumothorax diagnosis.
Various quantitative variables of the pneumothorax side were all lower than that of the non-pneumothorax side and included the PV (0.36 cm/s 0.59 cm/s, < 0.001), PS (1.14% 1.90%, = 0.001), PV/CV (1.06 4.93, < 0.001), and PS/CS (0.76 1.74, < 0.001). For the discrimination of pneumothorax, the cut-off values of the PV, PS, PV/CV, and PS/CS were calculated as 0.50 cm/s, 0.94%, 1.96, and 1.12, respectively. Similarly, the sensitivities and specificities of PV, PS, PV/CV, and PS/CS were 96% and 62%, 47% and 91%, 93% and 96%, and 82% and 93%, respectively. The area under the receiver operating characteristic curve were 0.84, 0.72, 0.99, and 0.91, respectively, for PV, PS, PV/CV, and PS/CS.
Quantification analysis of pleural line movement using TDI is a useful tool for the diagnosis of pneumothorax.
目前尚无关于胸膜线运动定量的研究。在本研究中，我们假设组织多普勒及其定量技术可以量化胸膜线运动，并可用于诊断气胸。
评估组织多普勒成像（TDI）测量的胸膜线运动定量评估对气胸诊断的价值。
本研究纳入了45例诊断为单侧气胸的成年患者。每位患者均对双侧肺进行TDI检查。使用从TDI获得的几个指标比较气胸侧和对侧正常肺侧：胸膜线峰值速度（PVmax）、胸壁组织峰值速度（CVmax）、胸膜线峰值应变值（PS）、胸壁组织峰值应变值（CS）、PV/CV和PS/CS。采用受试者工作特征分析来评估这些定量评估对气胸诊断的性能。
气胸侧的各种定量变量均低于非气胸侧，包括PV（0.36 cm/s对0.59 cm/s，P<0.001）、PS（1.14%对1.90%，P = 0.001）、PV/CV（1.06对4.93，P<0.001）和PS/CS（0.76对1.74，P<0.001）。对于气胸的鉴别，PV、PS、PV/CV和PS/CS的截断值分别计算为0.50 cm/s、0.94%、1.96和1.12。同样，PV、PS、PV/CV和PS/CS的敏感性和特异性分别为96%和62%、47%和91%、93%和96%、82%和93%。PV、PS、PV/CV和PS/CS的受试者工作特征曲线下面积分别为0.84、0.72、0.99和0.91。
使用TDI对胸膜线运动进行定量分析是诊断气胸的一种有用工具。
