Recto-sigmoid endoscopic-ultrasonography in the staging of deep infiltrating endometriosis

Table 4 Comparative studies trans-vaginal sonography vs recto-sigmoid endoscopic ultrasonography in staging deep infiltrating endometriosis

Author	Ref.	Year	No.	Type	se%		sp%		ppv%		npv%
					TVS	RS-EUS	TVS	RS-EUS	TVS	RS-EUS	TVS	RS-EUS
Bazot	[54]	2003	30	P	95	82	100	88	100	95	89	84
Bazot	[56]	2003	81	P	92	88.9	100	92.6	89	100	87	80.6
Piketti	[57]	2009	134	P	90.7	96	96	100	100	96	88.9	95.2
Gauche-cazalis	[53]	2011	25	R	73.7	94.7	66.7	66.7	RS-EUS : Appropriate for rectum and recto-vaginal septumTVS: Good for ovarian endometriomas

( ): Number of patients with digestive infiltration; R: Retrospective; P: Prospective; se: Sensitivity; sp: Specificity; ppv: Positive predictive value; npv: Negative predictive value; RS-EUS: Recto-sigmoid endoscopic ultrasonography; TVS: Trans-vaginal sonography.