Skip to main content

Table 2 The sensitivity, specificity, PPV, NPV, and accuracy of overall biopsy, TRUS-guided biopsy, and CE-TRUS guided biopsy

From: Value of transrectal ultrasound-guided biopsy in endoscopy negative biopsy patients with rectal lesions

 

Sen(%)

Spe(%)

PPV(%)

NPV(%)

Accuracy(%)

Overall biopsy

89.1

100

100

70.4

91.3

95%(CI)

(81.7,93.8)

(86.2,100)

(95.6,100)

(54.6,82.7)

— —

TRUS guided

73.7

100

100

50

79.2

95%(CI)

(52.3,92.1)

(48.6,89.9)

(73.2,100)

(20.1,79.8)

— —

CE-TRUS guided

92.1

100

100

75

93.6*

95%(CI)

(84.7,96.3)

(82.8,100)

(95.1,100)

(56.2,87.9)

— —

  1. CI: confidence interval; Sen: sensitive; Spe: specificity; NPV: negative predictive value; PPV: positive predictive value;
  2. *The increase in correct diagnoses was significant (p < 0.05) between TRUS-guided biopsy and CE-TRUS guided biopsy
Back to article page

BMC Gastroenterology

ISSN: 1471-230X

Contact us