Lung ultrasound (LUS): a simple, inexpensive, and quick diagnostic method: a literature review

Abstract Introduction Historically, radiologists believed that ultrasound was ineffective for detecting lung and pleural diseases. Today, it is regarded as a diagnosis (imaging) that may be ‘equated’ with advanced methods such as radiography and computed tomography (CT) since it has comparable, if not greater, diagnostic accuracy for specific pathological substrates when compared with cross-sectional radiographic approaches such as CT. We have covered the basic anatomical points and lines, as well as their meanings in the interpretation of ultrasound findings, throughout this article. We have specifically highlighted conditions with high lung ultrasound (LUS) specificity and sensitivity, such as pleural effusion, pneumothorax, and pneumonia. It is also noteworthy that it’s recommended for coronavirus disease 2019 (COVID-19) patients in the diagnosis of interstitial pneumonitis. Following lines such as A, B, C, Z, and E would provide us with information on the patient’s current condition. We identified 15 papers that contained the following keywords: ‘A lines’, ‘B lines’, ‘C lines’, ‘Z lines’, ‘E lines’, ‘pleural effusion’, ‘pneumothorax’, ‘pneumonia’, and ‘coronavirus disease 2019’. Conclusion The use of lung ultrasound will become more widespread. It is vital to train general practitioners and emergency doctors in its use since it provides a quick and reliable reference point for further diagnosis.