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The Egyptian Journal of Bronchology

Table 1 Sensitivity, specificity, predictive value, and diagnostic accuracy of both needles in the study population

From: Endobronchial ultrasound guided Echo Tip Ultra HD 22G needle versus Echo Tip Pro Core HD 22G needle in diagnosis of mediastinal lesions

In all cases

Final diagnosis

Total

True + ve

True −ve

Echo Tip Ultra HD needle

+ve

8

0

8

−ve

13

1

14

 Total

21

1

22

Echo Tip ProCore HD needle

+ve

6

0

6

−ve

15

1

16

 Total

21

1

22

  1. Echo Tip Ultra HD needle: sensitivity (%), 38%; specificity (%), 100%; positive predictive value (PV+) (%), 100%; negative predictive value (PV−) (%), 7.14%; false negative rate (%), 61.90%; diagnostic accuracy (%), 40.9%
  2. Echo Tip ProCore HD needle: sensitivity (%), 28.57%; specificity (%), 100%; positive predictive value (PV+) (%), 100%; negative predictive value (PV−) (%), 6.25%; false negative rate (%), 71.42%; diagnostic accuracy (%) = 31.81%
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