Abstract

AIM:

To evaluate the diagnostic reliability of a new generation wireless point-of care ultrasound device for abdominal and thoracic findings.

MATERIAL AND METHODS:

40 patients (16 females, 24 males 19 –80 years, on average 56.1 years) were scanned by an experienced examiner using the new wireless Vscan Air device for abdominal and thoracic findings. The probe frequencies were 2–5 MHz (convex probe) and 3–12 MHz for the linear probe. As a reference standard, all patients were also examined using high-end ultrasound (LOGIQ E9/10). Results were interpreted independently by two examiners in consensus, also with regard to the image quality (0–4, from not assessable = 0, to excellent 4).

RESULTS:

In all 40 patients (100%) examination with conventional high-end ultrasound and the Vscan Air ultrasound device was feasible. Sensitivity, specificity, positive and negative predictive value for the diagnosis of abdominal and thoracic findings were 63.3%, 100%, 100%, and 40%, respectively. Most main diagnostic findings were detected using the mobile device compared to the high-end ultrasound. Limitations were found regarding characterization and classification of hepatic and renal tumorous lesions.

Image quality revealed mostly minor diagnostic limitations for the mobile device, mean 2.9 (SD –0.300) and was excellent or with only minor diagnostic limitations for conventional high-end ultrasound, mean 3.25 (SD –0.438).

CONCLUSION:

Due to its easy application and its high diagnostic reliability, point-of-care ultrasound systems of the latest generation represent a valuable imaging method for the primary assessment of abdominal and thoracic findings, especially in patients on intensive care units or in emergency situations.

中文翻译：

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无线床旁超声：新一代手持设备的首次体验

摘要

目标：

评估新一代无线床旁超声设备对腹部和胸部发现的诊断可靠性。

材料与方法：

40 名患者（16 名女性，24 名男性，19-80 岁，平均 56.1 岁）由经验丰富的检查员使用新的无线 Vscan Air 设备进行腹部和胸部检查。探头频率为 2-5 MHz（凸探头）和线性探头的 3-12 MHz。作为参考标准，还使用高端超声 (LOGIQ E9/10) 对所有患者进行了检查。结果由两名审查员独立解释，并在图像质量方面达成共识（0-4，从不可评估 = 0，到优秀 4）。

结果：

在所有 40 名患者 (100%) 中，使用常规高端超声和 Vscan Air 超声设备进行检查是可行的。诊断腹部和胸部发现的敏感性、特异性、阳性和阴性预测值分别为 63.3%、100%、100% 和 40%。与高端超声相比，大多数主要诊断结果都是使用移动设备检测到的。发现肝和肾肿瘤病变的表征和分类存在局限性。

图像质量显示移动设备的诊断限制大多较小，平均为 2.9 (SD –0.300)，传统高端超声的图像质量非常好或只有较小的诊断限制，平均为 3.25 (SD –0.438)。

结论：

由于其易于应用和高诊断可靠性，最新一代的床旁超声系统代表了一种有价值的成像方法，用于初步评估腹部和胸部的发现，特别是在重症监护室或紧急情况下的患者。