Bedside Ultrasonography for the Intensivist

Cárdenas-García, José; Mayo, Paul H.

doi:10.1016/j.ccc.2014.08.003

Cited by 62 publications

(12 citation statements)

References 45 publications

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“…The rapid expansion of ultrasound use within the clinical setting reflects the evolution of its diagnostic capabilities 117 , 118 and allows for the assessment of muscle quality . This is important, because skeletal muscle function is not solely determined by quantity 106 .…”

Section: Ultrasoundmentioning

confidence: 99%

The Use of Technology for Estimating Body Composition

et al. 2016

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Assessment of body composition, both at single time points and longitudinally, is particularly important in clinical nutrition practice. It provides a means for the clinician to characterize nutrition status at a single time point, aiding in the identification and diagnosis of malnutrition, and to monitor changes over time by providing real-time information on the adequacy of nutrition interventions. Objective body composition measurement tools are available clinically but are often underused in nutrition care, particularly in the United States. This is, in part, due to a number of factors concerning their use in a clinical context: cost and accessibility of equipment, as well as interpretability of the results. This article focuses on the factors influencing interpretation of results in a clinical setting. Body composition assessment, regardless of the method, is inherently limited by its indirect nature. Therefore, an understanding of the strengths and limitations of any method is essential for meaningful interpretation of its results. This review provides an overview of body composition technologies available clinically (computed tomography, dual-energy x-ray absorptiometry, bioimpedance, ultrasound) and discusses the strengths and limitations of each device.

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Section: Ultrasoundmentioning

confidence: 99%

The Use of Technology for Estimating Body Composition

et al. 2016

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“…The rapid expansion of point-of-care sonography in hospital settings reflects the significant evolution of diagnostic ultrasound ( Cardenas-Garcia & Mayo, 2015 ). This imaging modality has been used clinically for disparate purposes such as aiding needle placement for nerve blocks and aspiration procedures ( Klaastad, Sauter & Dodgson, 2009 ; Fung et al, 2014 ), and providing biofeedback of the trunk musculature during physical rehabilitation ( Giggins, Persson & Caulfield, 2013 ).…”

mentioning

confidence: 99%

Ultrasound estimates of muscle quality in older adults: reliability and comparison of Photoshop and ImageJ for the grayscale analysis of muscle echogenicity

Harris‐Love

Seamon

Teixeira

et al. 2016

PeerJ

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Background. Quantitative diagnostic ultrasound imaging has been proposed as a method of estimating muscle quality using measures of echogenicity. The Rectangular Marquee Tool (RMT) and the Free Hand Tool (FHT) are two types of editing features used in Photoshop and ImageJ for determining a region of interest (ROI) within an ultrasound image. The primary objective of this study is to determine the intrarater and interrater reliability of Photoshop and ImageJ for the estimate of muscle tissue echogenicity in older adults via grayscale histogram analysis. The secondary objective is to compare the mean grayscale values obtained using both the RMT and FHT methods across both image analysis platforms.Methods. This cross-sectional observational study features 18 community-dwelling men (age = 61.5 ± 2.32 years). Longitudinal views of the rectus femoris were captured using B-mode ultrasound. The ROI for each scan was selected by 2 examiners using the RMT and FHT methods from each software program. Their reliability is assessed using intraclass correlation coefficients (ICCs) and the standard error of the measurement (SEM). Measurement agreement for these values is depicted using Bland-Altman plots. A paired t-test is used to determine mean differences in echogenicity expressed as grayscale values using the RMT and FHT methods to select the post-image acquisition ROI. The degree of association among ROI selection methods and image analysis platforms is analyzed using the coefficient of determination (R2).Results. The raters demonstrated excellent intrarater and interrater reliability using the RMT and FHT methods across both platforms (lower bound 95% CI ICC = .97–.99, p < .001). Mean differences between the echogenicity estimates obtained with the RMT and FHT methods was .87 grayscale levels (95% CI [.54–1.21], p < .0001) using data obtained with both programs. The SEM for Photoshop was .97 and 1.05 grayscale levels when using the RMT and FHT ROI selection methods, respectively. Comparatively, the SEM values were .72 and .81 grayscale levels, respectively, when using the RMT and FHT ROI selection methods in ImageJ. Uniform coefficients of determination (R2 = .96–.99, p < .001) indicate strong positive associations among the grayscale histogram analysis measurement conditions independent of the ROI selection methods and imaging platform.Conclusion. Our method for evaluating muscle echogenicity demonstrated a high degree of intrarater and interrater reliability using both the RMT and FHT methods across 2 common image analysis platforms. The minimal measurement error exhibited by the examiners demonstrates that the ROI selection methods used with Photoshop and ImageJ are suitable for the post-acquisition image analysis of tissue echogenicity in older adults.

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“…At present, the diagnosis of children CAP is mainly based on medical history, clinical manifestations, laboratory examinations, imaging examinations, etc. Imaging examinations are still mainly focused on CXR and chest CT. Because the completion of chest CT needs to move the child, it is not conducive to the recovery of the child to some extent, unless special diseases such as bronchial foreign bodies, congenital pulmonary dysplasia, etc., need to be identified [8] . Because anteroposterior chest radiographs can be performed at the bedside and the latest guidelines point out that for CAP children that need to be judged for pneumonia complications or exacerbations, CXR radiographs should be performed in time [9] , so chest radiographs are often applied in children intensive care unit.…”

Section: Resultsmentioning

confidence: 99%

The Diagnostic Value of Lung Ultrasonography in Children Community-Acquired Pneumonia

Liao¹,

Zhu²,

Niu³

2021

IJPS

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To explore the diagnostic value of lung ultrasonography in children community-acquired pneumonia is the objective of the study. A total of 126 children who were diagnosed with community-acquired pneumonia and underwent lung ultrasonography examination during the course of the disease were selected. All patients underwent lung ultrasonography and chest X-ray examination within 24 h of admission. The clinical characteristics of lung ultrasonography examination of community-acquired pneumonia were analyzed and the sensitivity, specificity, correct index and diagnostic coincidence rate of lung consolidation with lung ultrasonography and chest X-ray were compared. The lung ultrasonography imaging features of severe community-acquired pneumonia in children are the disappearance of A-line, increase of B-line, waterfall sign, lung consolidation, bronchial inflation sign, pleural effusion, etc. 53 cases of patients chest computed tomography results were used as the gold standard. The sensitivity, correct index and diagnostic coincidence rate of lung ultrasonography in the diagnosis of lung consolidation were all higher than those of X-ray diagnosis and the differences were statistically significant (p<0.05). Lung ultrasonography determined abnormal changes in the lungs of 124 children and chest X-ray determined abnormal changes in the lungs of 122 children. The chest X-rays of 2 children showed normal, while the lung ultrasonography showed a large number of B-line and lung consolidation in both lungs. A total of 17 cases of pleural effusion were determined by lung ultrasonography and 1 case of pleural effusion was determined by chest X-ray. The difference between the two groups was statistically significant (p<0.05). Lung ultrasonography in children community-acquired pneumonia is superior to chest X-ray in lung consolidation and pleural effusion and can be used for diagnosis of children community-acquired pneumonia.

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Bedside Ultrasonography for the Intensivist

Cited by 62 publications

References 45 publications

The Use of Technology for Estimating Body Composition

The Use of Technology for Estimating Body Composition

Ultrasound estimates of muscle quality in older adults: reliability and comparison of Photoshop and ImageJ for the grayscale analysis of muscle echogenicity

The Diagnostic Value of Lung Ultrasonography in Children Community-Acquired Pneumonia

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