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Table 1 Weighting of prevalence, diagnostic impact and difficulty of POCUS applications

From: Cardiac ultrasound in resource-limited settings (CURLS): towards a wider use of basic echo applications in Africa

Weight Disease prevalence Diagnostic impact of US US difficulty and technical requirements
1 Rare (< 5%) Minor or no management change Technically advanced, often requiring special equipment like TEE probe, cw-Doppler, cardiac software
2 Relatively common (5–15%) Management change Moderate, may require color-Doppler
3 Very common (> 15%) Urgent management change (possibly life threatening) Technically easy, only basic b/w US
  1. For prevalence and impact the numbers indicate the following levels: 1 = low, 2 = medium, 3 = high. For difficulty, scoring is reversed with numbers indicating the following levels: 1 = high, 2 = medium, and 3 = low. This allows for a composite score where the higher numbers correspond to increasing relevance and applicability of POCUS
  2. US ultrasound, TEE transesophageal echocardiography, cw continuous wave, b/w black and white