[1] Univ Pittsburgh, Dept Bioengn, Pittsburgh, PA USA
[2] Univ Alabama Birmingham, Dept Radiol, Birmingham, AL USA
[3] Univ Alabama Birmingham, Div Urogynecol & Pelv Reconstruct Surg, Dept Obstet & Gynecol, Birmingham, AL USA
[4] Univ Pittsburgh, Div Urogynecol & Reconstruct Surg, Magee Womens Hosp, Magee Womens Res Inst, Pittsburgh, PA USA
[5] Univ Pittsburgh, Sch Med, Pittsburgh, PA USA