Abstract
A total of 500 lymph nodes were evaluated. Group 1 (EBUS) consisted of 285 lymph nodes. Group 2 (EBUS-elastography) included 215 lymph nodes. In group 2, lymph nodes with predominantly blue pattern were assosiated with a pathologic determination of malignancy, and the probability of presenting malignant infiltration with this color pattern was 92% (P=0.004). Malignant lymph nodes presented less color dispersion (50.2 vs 96, P=0012), higher ratio of blue pixels (80% vs 20%, P=0.017) and higher strain ratio (6.2 vs 2.04, P=0.006). The cut-off points to distinguish between benign and malignant lymph nodes were 3.5 for strain ratio. The area under the curve of the ROC curves were 0.77, 0.9, and 0.89, respectively. Group 2 presented a lower number of non-diagnostic samples (1.9% vs 18%, P=0.001) and a higher rate of malignant results (54% vs 12%, P=0.005). Ebus elastography is feasible during the examination, the time of the examination is sightly extemded, however; it is a useful predictive tool for rapid on site evaluation of benign vs malignant lesions
Footnotes
Cite this article as: European Respiratory Journal 2019; 54: Suppl. 63, PA3071.
This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).
- Copyright ©the authors 2019