1. The diagnostic performance of ultrasound for acute appendicitis in pregnant and young nonpregnant women: A case-control study 
Lior Segev, Yakir Segev, Shlomi Rayman, Aviram Nissan, Eran Sadot 
International Journal of Surgery 
Volume 34, Pages (October 2016)
DOI: /j.ijsu
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2. Fig. 1
ROC curves: Predictive performance of ultrasound for the pathologic diagnosis of appendicitis stratified by pregnancy status. Pregnant group: AUC = 0.76 (95%CI 0.64–0.87); Nonpregnant group: AUC = 0.73 (95%CI: 0.63–0.83) p = 0.78.
International Journal of Surgery  , 81-85DOI: ( /j.ijsu )
Copyright © 2016 IJS Publishing Group Ltd Terms and Conditions

3. Fig. 2
ROC curves: Predictive performance of ultrasound for the pathologic diagnosis of appendicitis in pregnant patients, stratified by trimester. Trimester 1 (n = 23): AUC = 0.73 (95%CI: 0.4–1.0); Trimester 2 (n = 32): AUC = 0.67 (95%CI: 0.49–0.87); Trimester 3 (n = 12): AUC = 0.86 (95%CI: 0.68–1.0) p = 0.4.
International Journal of Surgery  , 81-85DOI: ( /j.ijsu )
Copyright © 2016 IJS Publishing Group Ltd Terms and Conditions

4. Fig. 3
Ultrasound picture of a 20 years old patient showing Acute Appendicitis: sonographic blind-ending tubular structure that demonstrates 6 mm wall thickening and edema. An echogenic focus within the appendix is consistent with appendicolith.
International Journal of Surgery  , 81-85DOI: ( /j.ijsu )
Copyright © 2016 IJS Publishing Group Ltd Terms and Conditions