Role of Transthoracic Lung Ultrasonography in the Diagnosis of Pulmonary Embolism: A Systematic Review and Meta-Analysis
Fig 7
Fagan plot analysis to evaluate the clinical utility of transthoracic ultrasonography (TS) for the detection of pulmonary embolism (PE) from studies published post-2000.
(a) With a pretest probability of PE of 1.3%, the post-test probability of PE, given positive and negative TS results, were 8% and 0%. (b) With a pretest probability of PE of 16.2%, the post-test probabilities of PE, given positive and negative TS results, were 55% and 5%. (c) With a pretest probability of PE of 40.6%, the post-test probability of PE, given positive and negative TS results, were 81% and 15%. The Fagan plot consists of a vertical axis on the left with the pretest probability, an axis in the middle representing the likelihood ratio, and a vertical axis on the right representing the post-test probability.