scholarly journals Lung artefacts and their use

2016 ◽  
Vol 18 (4) ◽  
pp. 488 ◽  
Author(s):  
Christoph F Dietrich ◽  
Gebhard Mathis ◽  
Michael Blaivas ◽  
Giovanni Volpicelli ◽  
Armin Seibel ◽  
...  

The science of lung ultrasound has grown tremendously over the last two decades and lung ultrasound has not only entered the mainstream of point of care ultrasound but has become a dominant topic. Understanding lung ultrasound signs and artifacts is critical to being able to correlate findings with actual pathology and normal anatomy and physiology. Investigators have described multiple lung ultrasound artifacts and findings and it is important to understand both the physics and anatomic basis behind them. Additionally, ultrasound machine use and transducer selection can significantly affect results obtained on patient during an examination and the provider must carefully choose the correct settings. This manuscript describes the state of the art in ultrasound artifact recognition and correlation as well as management of ultrasound technology to optimize diagnostic success.

Critical Care ◽  
2020 ◽  
Vol 24 (1) ◽  
Author(s):  
Arif Hussain ◽  
Gabriele Via ◽  
Lawrence Melniker ◽  
Alberto Goffi ◽  
Guido Tavazzi ◽  
...  

AbstractCOVID-19 has caused great devastation in the past year. Multi-organ point-of-care ultrasound (PoCUS) including lung ultrasound (LUS) and focused cardiac ultrasound (FoCUS) as a clinical adjunct has played a significant role in triaging, diagnosis and medical management of COVID-19 patients. The expert panel from 27 countries and 6 continents with considerable experience of direct application of PoCUS on COVID-19 patients presents evidence-based consensus using GRADE methodology for the quality of evidence and an expedited, modified-Delphi process for the strength of expert consensus. The use of ultrasound is suggested in many clinical situations related to respiratory, cardiovascular and thromboembolic aspects of COVID-19, comparing well with other imaging modalities. The limitations due to insufficient data are highlighted as opportunities for future research.


2018 ◽  
Vol 12 (3) ◽  
pp. 223-226 ◽  
Author(s):  
Maria Viviana Carlino ◽  
Costantino Mancusi ◽  
Giovanni De Simone ◽  
Filomena Liccardi ◽  
Mario Guarino ◽  
...  

Four patients presented to the Emergency Department with dyspnea and they underwent point-of-care ultrasound. Lung ultrasound showed a diffuse bilateral B-profile pattern-interstitial syndrome, they underwent contrast-enhanced computed tomography scan of thorax that showed multiple bilateral lung metastases. The detection, in a dyspneic patient, of a diffuse Bprofile pattern not attributable to traditional interstitial syndrome conditions (pulmonary fibrosis, acute respiratory distress syndrome, acute pulmonary edema, interstitial pneumonia) could be indicative of multiple pulmonary metastases.


Author(s):  
Mustafa J. Musa ◽  
Mohamed Yousef ◽  
Mohammed Adam ◽  
Awadalla Wagealla ◽  
Lubna Boshara ◽  
...  

: Lung ultrasound [LUS] has evolved considerably over the last years. The aim of the current review is to conduct a systematic review reported from a number of studies to show the usefulness of [LUS] and point of care ultrasound for diagnosing COVID-19. A systematic search of electronic data was conducted including the national library of medicine, and the national institute of medicine, PubMed Central [PMC] to identify the articles depended on [LUS] to monitor COVID-19. This review highlights the ultrasound findings reported in articles before the pandemic [11], clinical articles before COVID-19 [14], review studies during the pandemic [27], clinical cases during the pandemic [5] and other varying aims articles. The reviewed studies revealed that ultrasound findings can be used to help in the detection and staging of the disease. The common patterns observed included irregular and thickened A-lines, multiple B-lines ranging from focal to diffuse interstitial consolidation, and pleural effusion. Sub-plural consolidation is found to be associated with the progression of the disease and its complications. Pneumothorax was not recorded for COVID-19 patients. Further improvement in the diagnostic performance of [LUS] for COVID-19 patients can be achieved by using elastography, contrast-enhanced ultrasound, and power Doppler imaging.


2019 ◽  
Vol 74 (4) ◽  
pp. S11
Author(s):  
H. Shokoohi ◽  
J. Herrala ◽  
K. Negishi ◽  
E. Diamond ◽  
M. Halperin ◽  
...  

Author(s):  
Robert Farrow ◽  
Graham Becherer-Bailey ◽  
Daniel Mantuani ◽  
Arun Nagdev

Introduction: Coronavirus disease 2019 (COVID-19) is caused by the virus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Several case series from Italy and China have highlighted the lung ultrasound findings of this disease process and may demonstrate its clinical utility during the current pandemic. Case Report: We present a case of a COVID-19 patient who presented to the emergency department twice within a 24-hour period with rapidly progressing illness. A multi-organ point-of-care ultrasound (POCUS) evaluation was used on the return visit and assisted clinical decision-making. Discussion: A multi-organ POCUS exam allows for quick assessment of acute dyspnea in the emergency department. As the lung involvement of COVID-19 is primarily a peripheral process it is readily identifiable via lung ultrasound. We believe that when applied efficiently and safely a POCUS exam can reduce clinical uncertainty and potentially limit the use of other imaging modalities when treating patients with COVID-19. Conclusion: This case highlights the utility of an early multiorgan point-of-care assessment for patients presenting with moderate respiratory distress during the severe SARS-CoV-2 pandemic.


2021 ◽  
Vol 10 (22) ◽  
pp. 5291
Author(s):  
Emanuele Pivetta ◽  
Irene Cara ◽  
Giulia Paglietta ◽  
Virginia Scategni ◽  
Giulia Labarile ◽  
...  

Background: Lung Ultrasound Evaluation (LUS) is usefully applied in the Emergency Department (ED) to patients with suspected or confirmed COVID-19. Diaphragmatic Ultrasound (DUS) may provide additional insight into ventilatory function. This proof-of-concept study aimed to evaluate the feasibility of LUS and DUS in a third level ED during the COVID-19 pandemic. Methods: Adult patients presenting with COVID-19 symptoms were eligible. After the physical examination, both LUS and DUS (i.e., diaphragmatic motion and thickness) were performed. All patients were followed after 30 days to determine their need for ventilation, admission, and/or a new ED evaluation after discharge. The diagnostic accuracies of diaphragm measurements in assessing the risk of the 30-day outcome were calculated as well as the measurements’ usefulness. Bland–Altman plots were used for comparing bedside and off-line diaphragm measurements. Results: 118 patients were enrolled. Median thickness and motion were 1.7 mm (iqr 0.4) and 1.8 cm (iqr 0.7), respectively, with a mean difference of 0.009 mm (95% CI −0.037–0.056 mm) and −0.051 cm (95% CI −0.108–0.006 cm), respectively. The 30-day outcome was associated with an increase in thickness (OR 5.84, 95% CI 0.96–35.4), and a lower motion (OR 0.49, 95% CI 0.2–1.21). Conclusion: DUS seemed to be feasible and reliable in the ED in a population of patients presenting with symptoms related to COVID-19 infection.


2021 ◽  
Vol 8 (8) ◽  
pp. 284-288
Author(s):  
Sidhant Swarup ◽  
Rakesh Panigrahi ◽  
Suryakanta Swain ◽  
Hemant Agrawal

Introduction: Up to 29% of late preterm babies suffer from respiratory distress due to which they need to be admitted to neonatal intensive care unit (NICU). Point-of-care ultrasound is a useful tool in critical neonate care, providing valuable information without any risk of ionizing radiation to the newborn. Materials and Method: This mono-centric, descriptive, and prospective study was conducted in NICU. Preterm newborns of less than 36 weeks with respiratory distress at birth on non-invasive ventilation were recruited. A lung ultrasound was performed at first 12 h of life and followed till their discharge. Main outcomes need for surfactant treatment. Results: Sixty preterm infants (median gestational age: 29 weeks) were recruited. Newborn in the surfactant group requiring ultrasound and intervention was significantly higher than in no surfactant group (p<0.0001). In 15 newborns who received surfactant, the first dose was administered at a median age of 4.5 h. In 13 of these 15 newborns, the lung ultrasound scan was subsequently repeated an average of 2 h (Standard deviation or SD: 2) On average, the second dose of surfactant was administered at 24 h of life (SD: 9). Conclusion: Early lung ultrasound in preterm infants with respiratory distress appears to be a useful tool with no adverse effects for the patient. It allows a better assessment of respiratory distress by detecting patients with a greater risk of requiring surfactant or mechanical ventilation, even before oxygenation criteria.


2017 ◽  
Vol 86 (1) ◽  
pp. 38-39
Author(s):  
Brandon Chau ◽  
Gayathri Sivakumar

Ultrasound technology has rapidly progressed over the past decades to emerge as a portable, versatile imaging modality to complement the physical exam. It has been shown to be superior to clinical exam and equivalent to computed-tomography in detecting many life-threatening conditions, and thus is used in a variety of resuscitative settings, including the front lines of the military. A variety of imaging protocols exist for ultrasound, but in resource-deplete settings such as a disaster scenario, the focused assessment with sonography for trauma (FAST) exam is a rapid and accurate method of determining acute intraperitoneal bleeding. With improving portability, as well as the ability to transmit images to a centralized command hub, it can become a key component of the first responder’s toolkit.


2021 ◽  
pp. 2004283
Author(s):  
Jorge Rubio-Gracia ◽  
Ignacio Giménez-López ◽  
Vanesa Garcés-Horna ◽  
Daniel López-Delgado ◽  
Jose Luis Sierra-Monzón ◽  
...  

BackgroundLung ultrasound (LUS) is feasible for assessing lung injury caused by COVID-19. However, the prognostic meaning and time-line changes of lung injury assessed by LUS in COVID-19 hospitalised patients, is unknown.MethodsProspective cohort study designed to analyse prognostic value of LUS in COVID-19 patients by using a quantitative scale (LUZ-score) during the first 72 h after admission. Primary endpoint was in-hospital death and/or admission to the intensive care unit. Total length of hospital stay, increase of oxygen flow or escalate medical treatment during the first 72 h, were secondary endpoints.Results130 patients were included in the final analysis; mean age was 56.7±13.5 years. Time since the beginning of symptoms until admission was 6 days (4–9). Lung injury assessed by LUZ-score did not differ during the first 72 h (21 points [16–26] at admission versus 20 points [16–27] at 72 h; p=0.183). In univariable logistic regression analysis estimated PaO2/FiO2 (HR 0.99 [0.98–0.99]; p=0.027) and LUZ-score>22 points (5.45 (1.42–20.90); p=0.013) were predictors for the primary endpoint.ConclusionsLUZ-score is an easy, simple and fast point of care ultrasound tool to identify patients with severe lung injury due to COVID-19, upon admission. Baseline score is predictive of severity along the whole period of hospitalisation. The score facilitates early implementation or intensification of treatment for COVID-19 infection. LUZ-score may be combined with clinical variables (as estimated PAFI) to further refine risk stratification.


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