Endobronchial Ultrasound Elastography



Fig. 24.1
EBUS elastography classification of lymph nodes. The left side of the display shows B mode, and the right side shows the elastography patterns. (a) Type 1 shows predominantly non-blue (green, yellow, and red). (b) Type 2 shows part blue, part non-blue (green, yellow, and red). c Type 3 shows predominantly blue (Adopted from Izumo et al. [3])




Table 24.1
EBUS elastography classification of LNs
























Elastography type
Number of benign LNs/total number (%)
Number of malignant LNs/total number (%)

Type 1 (n = 24)
24/24 (100)
0/24 (0)

Type 2 (n = 14)
6/14 (42.9)
8/14 (57.1)

Type 3 (n = 37)
2/37 (5.4)
35/37 (94.6)


Adopted from Izumo et al. [3]

EBUS endobronchial ultrasound, LN lymph node



Table 24.2
Accuracy of quantitative elastography for the diagnosis of malignant metastasis

























 
Accuracy (%)
[95 %CI]

Sensitivity
100
[83.8–100]

Specificity
92.3
[73.0–99.0]

Positive predictive value
94.6
[79.8–99.3]

Negative predictive value

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Sep 25, 2017 | Posted by in RESPIRATORY | Comments Off on Endobronchial Ultrasound Elastography

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