Table 3.

Detection frequency of fallopian tubes and ovaries by transvaginal ultrasonography.

Summary of visualization	n	%
Total women examined	549	100.0
Surgically absent ovaries	10	0.9
Nonvisualized ovaries	295	26.9
Ovaries detected	793	100.0
Fallopian tubes visualized	676	85.2

Total possible ovaries that could be included = 1098 (549 × 2) with correction for undetected and absent ovaries reducing the number to 305 (10 + 295) = 793 documentable ovaries present which becomes the maximum possible ovaries that were present (i.e., 100%). Fallopian tube visualization was normalized by the number of ovaries that were present (1098 − 305 = 793).