Optimizing B-lines on lung ultrasound: an in-vitro to in-vivo pilot study with clinical implications.
B-lines on lung ultrasound (US) are the hallmark of pulmonary edema. It is unknown if ultrasound machine settings or probe type matter. We created an in-vitro gelatin model. Using lung presets as baseline, five blinded investigators assessed the impact of 32 distinct settings on B-line visibility ba...
| Publicado en: | Journal of Clinical Monitoring & Computing Vol. 34; no. 2; pp. 277 - 285 |
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| Autores principales: | , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Apr2020
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=142316647&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 142316647 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13871307 OHC jtl: Journal of Clinical Monitoring & Computing issn: 13871307 maglogo: N pubinfo: dt: Apr2020 vid: 34 iid: 2 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 142316647 142316647 NLM31089845 10.1007/s10877-019-00321-z NLM31089845 142316647 ppf: 277 ppct: 8 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Optimizing B-lines on lung ultrasound: an in-vitro to in-vivo pilot study with clinical implications. aug: au: Schmickl, Christopher N. Menon, Aravind Ajakumar Dhokarh, Rajanigandha Seth, Bhavna Schembri, Frank affil: University of California San Diego, 5210 Fiore Ter L414, 92122, San Diego, CA, USA sug: subj: Ultrasonography Methods Pulmonary Edema Lung Regression Ultrasonography Statistics and Numerical Data Phantoms, Imaging Multivariate Analysis Proteins False Positive Results Pilot Studies In Vitro Studies Linear Regression Clinical Assessment Tools Impact of Events Scale Scales ab: B-lines on lung ultrasound (US) are the hallmark of pulmonary edema. It is unknown if ultrasound machine settings or probe type matter. We created an in-vitro gelatin model. Using lung presets as baseline, five blinded investigators assessed the impact of 32 distinct settings on B-line visibility based on a Likert-Scale (LS) from 0 to10 (< 5 worse, > 5 better) separately for two probes. The experiment was then repeated in-vivo in a patient with known pulmonary edema. Based on a multivariable regression LS-ratings were similar when comparing the in-vitro versus in-vivo experiment (P = 0.16; partial R2 = 0.2%) and when using the curvilinear versus linear probe (P = 0.69; partial R2 = 0.02%) but significantly different across machine settings (P < 0.0001; partial R2 = 34.4%). Limited by its pilot character, our study suggests that (1) certain US-machine settings heavily impact B-line visibility, with no clear difference between probes; (2) in-vitro models are a valid and practical alternative to more challenging patient-based research; (3) there is significant potential to improve B-line visibility and thus diagnostic yield in the clinical setting by using lung presets, centering the focal zone at the pleural line and increasing the distal time gain compensation, most of which are (in our experience) rarely done. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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