{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T04:25:39Z","timestamp":1784262339019,"version":"3.55.0"},"reference-count":22,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2005,7,18]],"date-time":"2005-07-18T00:00:00Z","timestamp":1121644800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2005,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the effects of oral contraceptives (OCs) on uterine contractility using cine MRI, and correlate the kinematic findings with the static findings.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Healthy female volunteers of reproductive age (23 taking OCs, and 15 not) were evaluated at mid\u2010cycle. MR images were obtained with a 1.5T magnet, with 60 serial images taken every three seconds by half\u2010Fourier acquisition single\u2010shot turbo spin echo (HASTE) to be displayed in cine mode. Assessments were based on the 1) detectability of uterine peristalsis in cine mode, 2) peristaltic frequency and direction, 3) thickness of the endometrium, myometrium, and junctional zone (JZ) on T2\u2010weighted images (T2WIs), and 4) intensity of the myometrium and cervical mucus on T2WIs and T1\u2010weighted images (T1WIs), respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Uterine peristalsis was markedly decreased in the OC users. The endometrium and JZ were significantly thinner, and the myometrium was thicker in the OC users compared to controls. The signal intensity of the myometrium and cervical mucus was significantly higher in the OC users than in controls.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>OCs markedly suppressed uterine peristalsis at mid\u2010cycle, and the uterus displayed a globular configuration with a thin JZ that may be related to decreased uterine peristalsis in OC users. J. Magn. Reson. Imaging 2005;22:265\u2013270. \u00a9 2005 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.20384","type":"journal-article","created":{"date-parts":[[2005,7,18]],"date-time":"2005-07-18T19:49:27Z","timestamp":1121716167000},"page":"265-270","source":"Crossref","is-referenced-by-count":41,"title":["Oral contraceptives and uterine peristalsis: Evaluation with MRI"],"prefix":"10.1002","volume":"22","author":[{"given":"Aki","family":"Kido","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaori","family":"Togashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Asako","family":"Nakai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Milliam L.","family":"Kataoka","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takashi","family":"Koyama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shingo","family":"Fujii","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2005,7,18]]},"reference":[{"key":"e_1_2_6_2_2","first-page":"231","volume-title":"Novak's gynecology","author":"Stubblefield P","year":"2002"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(15)33651-6"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(99)70120-1"},{"key":"e_1_2_6_5_2","first-page":"52","article-title":"Oral contraceptives; mechanism of oral contraceptives","volume":"67","author":"Kuji N","year":"2000","journal-title":"Sanka Fujinka"},{"key":"e_1_2_6_6_2","first-page":"1517","volume-title":"Williams obstetrics","author":"Cunningham FG","year":"2001"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(73)90096-3"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1097\/00130747-200108000-00002"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.10415"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(90)90983-E"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0015-0282(16)54246-0"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0015-0282(16)55644-1"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1093\/humrep\/15.suppl_1.81"},{"key":"e_1_2_6_14_2","unstructured":"KidoA TogashiK NakaiA KtaokaM FujiwaraT KobayashiA.Circadian rhythm of uterine peristalsis. 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