To evaluate whether lung ultrasound is reliable bedside tool to monitor changes of lung aeration at the early and late stages of ARDS. LUS was performed in ARDS patients that underwent at least two consecutive CT scan at ICU admission and at least 1 week after admission. Twelve fields were evaluated and graded from 0 (normal) to 3 (consolidation). Changes of LUS score in twelve fields (ΔLUS_tot) and in four ventral (ΔLUS_V), intermediate (ΔLUS_I) and dorsal (ΔLUS_D) zones were calculated at each time points. Three categories were described: Improve (ΔLUS < 0), Equal (ΔLUS = 0) or Worse (ΔLUS > 0). LUS scores were correlated with total changes in lung CT aeration (ΔCT_air) and with normally, poorly and not aerated regions (ΔCT_norm, ΔCT_poor and ΔCT_not, respectively). Eleven patients were enrolled. ΔLUS_tot had significant correlation with ΔCT_air (r = − 0.74, p < 0.01). ΔLUS_V, ΔLUS_I and ΔLUS_D showed significant correlations with ΔCT_air (r = − 0.66, r = − 0.69, r = − 0.63, respectively; p < 0.05). Compared to Equal, Improve and Worse categories had significantly higher (p < 0.01) and lower (p < 0.05) ΔCTair values, respectively. Compared to Equal, Improve and Worse categories had lower (p < 0.01) and higher (p < 0.01) ΔCT_not values, respectively. LUS score had a good correlation with lung CT in detecting changes of lung aeration.

评估肺部超声是否是监测 ARDS 早期和晚期肺通气变化的可靠床边工具。LUS 是在 ARDS 患者中进行的，这些患者在入住 ICU 时和入院后至少 1 周至少进行了两次连续 CT 扫描。对 12 个视野进行了评估，并从 0（正常）到 3（巩固）分级。在每个时间点计算十二个视野 (ΔLUS _tot ) 和四个腹侧 (ΔLUS _V )、中间 (ΔLUS _I ) 和背侧 (ΔLUS _{D ) 区域的 LUS 评分变化。}描述了三个类别：改善 (ΔLUS < 0)、相等 (ΔLUS = 0) 或更差 (ΔLUS > 0)。LUS 评分与肺 CT 通气的总变化相关（ΔCT_空气) 以及正常、不良和未通气的区域（分别为 ΔCT _norm、ΔCT _poor和 ΔCT _not）。登记了 11 名患者。ΔLUS _{tot与ΔCT空气}显着相关（r = − 0.74，p < 0.01）。ΔLUS _V、ΔLUS _I和 ΔLUS _{D与 ΔCT空气}显着相关（分别为 r = − 0.66、r = − 0.69、r = − 0.63；p < 0.05）。与“相等”、“改善”和“更差”类别相比，ΔCTair 值分别显着更高 (p < 0.01) 和更低 (p < 0.05)。与“相等”、“改善”和“更差”类别相比，ΔCT 较低 (p < 0.01) 和较高 (p < 0.01 ₎值，分别。LUS评分在检测肺通气变化方面与肺部CT有很好的相关性。