A focused cardiac ultrasound is commonly used in the evaluation of patients with possible pulmonary embolism (PE). Based on the literature to date, we know that this can be helpful for ruling in signs of right heart strain. On the other hand, so far, this focused exam has not been that helpful in ruling out PE. These authors try to fix that by optimizing the sensitivity of the exam in a population with abnormal vital signs.
https://www.ultrasoundgel.org/86
https://pubmed.ncbi.nlm.nih.gov/31562679
Ultrasound GEL