The impact of lung ultrasound on clinical-decision making across departments: a systematic review

The Ultrasound Journal

Table 3 Lung ultrasound methodology of included studies

Study	Zones	Orientation	B-line appraisal	Probe	Examiner	Interrater agreement
ED
House 2020	10	Perpendicular	≥ 2 positive regions with ≥ 3 B-lines	Convex	Clinician + trained	Experts: 0.9 Clinician: 0.8
Shah 2016	18	Perpendicular	≥ 2 positive regions with ≥ 3 B-lines	Phased	Clinician + trained	LVEF κ:0.98
Russell 2015	8	Perpendicular	≥ 2 positive regions with ≥ 4 B-lines	Convex	Investigator + trained	Investigators κ: 0.82
Goffi 2013	8	Perpendicular	≥ 2 positive regions with ≥ 3 B-lines	Convex	Investigator	N/A
Yuan 2001	N/A	N/A	N/A	Linear + convex + phased	Technician + trained	N/A
ICU
Barman 2020	8	Parallel	≥ 2 positive regions with ≥ 3 B-lines	Linear + convex	Investigator	N/A
Haji 2018	12	Perpendicular	≥ 2 positive regions with ≥ 3 B-lines	N/A	Investigator + experience	κ:0.69
Wallbridge 2017	N/A	Parallel	≥ 2 zones with B-lines: diffuse	Convex + linear	Investigator + certified	N/A
Xirouchaki 2013	12	Perpendicular	> 1 B-line in zone	Convex	Investigator + experience	N/A
Kröner 2008	N/A	N/A	N/A	N/A	Technician	N/A
GW
Mozzini 2016	28/8/2	Perpendicular	≥ 2 positive regions with ≥ 3 B-lines	Linear + convex + phased	Clinicians + trained	Various
Sferrazza papa 2016	8	Perpendicular	≥ 2 positive regions with ≥ 3 B-lines	Convex + linear	Clinicians + trained	N/A
Yu 1992	N/A	N/A	N/A	Convex + linear + phased	Technician	N/A

κ kappa degree of agreement; N/A not available. The probes were grouped in major probe categories (e.g. phased, convex, linear) although their specific frequency range varied. The examiner was described as investigator, technician, or clinician. Training of examiners were grouped into experienced, trained and certified although the respective definition of the former varied substantially