Zalel Y, Kreizer D, Soriano D, Achiron R
Obstetrics and Gynecologic Dept., Sheba Medical Center, Tel Hashomer.
Harefuah. 1999 Jul;137(1-2):30-1, 86.
Mirena, a new intra-uterine device (IUD) introduced in Israel during the past year, releases 20 mcg/day of levonorgestrel for 5 years. It has the advantages of reduced pregnancy rates and diminished menstrual blood loss, together with a low risk of pelvic inflammatory disease compared with current IUD's. It has a typical sonographic appearance, differing from that of regular IUD's, which was demonstrated in all 15 women examined in this study. Its sonographic appearance includes both proximal and distal ends of the vertical arm of the device, which extend into the internal cervical os and fundal region, respectively. Acoustic shadowing between both ends defines the location of the device, which should help avoid consultations due to "lost IUD's."
曼月乐是以色列去年引进的一种新型宫内节育器（IUD），可在5年内每天释放20微克左炔诺孕酮。与目前的宫内节育器相比，它具有降低妊娠率、减少月经失血量的优点，同时盆腔炎风险较低。它具有典型的超声表现，与普通宫内节育器不同，本研究中检查的所有15名女性均证实了这一点。其超声表现包括节育器垂直臂的近端和远端，分别延伸至宫颈内口和宫底部区域。两端之间的声影确定了节育器的位置，这应有助于避免因“丢失宫内节育器”而进行的会诊。
