Uterine peristalsis shown on cine MR imaging using ultrafast sequence

Abstract

Purpose: To demonstrate and evaluate uterine peristalsis on cine magnetic resonance imaging (MRI) using ultrafast imaging. Materials and Methods:Serial MR uterine images (300) were obtained from 15 normal volunteers over four menstrual phases using true fast imaging with steady-state precession (true FISP) technique over 117 seconds and videotaped. Three radiologists independently evaluated videotapes of 59 studies. Uterine peristalsis was defined as wavy movements of subendometrial myometrium or endometrium. Interobserver reliability was evaluated using a Kappa coefficient. Fifty-four studies obtained in appropriate phases were analyzed.Results: Cine MRI displayed uterine peristalsis in 30 of 59 studies; consensus reading showed direction in 23 studies. Reliability between the final consensus of the recognition of uterine peristalsis and those of the three readers was extremely concordant, with a Kappa coefficient of 0.908. Wave direction was cervico-fundal in follicular and periovulatory phases, with frequency of contraction waves being 1.2-2.3 per minute in positive studies. Conclusion:Uterine peristalsis was demonstrated on cine MR using ultrafast MRI. Direction and frequency of peristaltic waves are closely related to menstrual cycle phases. Supplementary material for this article can be found on the JMRI website at www.interscience.wiley.com/jpages/ 1053-1807/suppmat/index.html.

A new method for analysis of non‐pregnant uterine peristalsis using transvaginal ultrasound

“…The maximum amplitudes of transverse cavity centerline movement were 0.5-1.5 mm with a mean ± SD of 0.94 ± 0.34 mm. 7 Proliferative TVS 0.6-5.4 Bulletti et al 12 Proliferative: Catheter + TVS late follicular 2.70 ± 0.6 periovulatory 3.50 ± 0.6 Nakai et al 13 Proliferative MRI 2.82 Present study Proliferative and early secretory TVS 2.94 ± 0.6 *Data given as range, mean or mean ± SD. MRI, magnetic resonance imaging; TVS, transvaginal sonography.…”

“…This study included 18 healthy non-pregnant women aged 28-41 years (12 of whom were 35 years or older) who had anatomically normal uteri and were in the proliferative (15 women at days [10][11][12][13][14] or early secretory (three women at days 15-18) phase of their menstrual cycle. The study was approved by the hospital ethics committee and all women gave written informed consent to participate.…”

Cine MR imaging of uterine peristalsis in patients with endometriosis

“…However, recent advances in magnetic resonance (MR) imaging techniques have enabled the direct, clear visualization of this inherent contractility of the uterus with cine mode display of MR images [9,10]. Although limited in number, there have been a number of articles published in the MR literature that have evaluated this peristalsis, subsequently proposing a close relationship between uterine peristalsis and fertility or menstruation [11,12].…”

Evaluation of Esophageal Peristalsis in Patients with Esophageal Tumors: Initial Experience with Cine MR Imaging

“…Steady-state free precession (SSFP) sequencing is one ultrafast technique, and its utility in demonstrating rapid movement, such as swallowing, or very subtle movement, such as uterine peristalsis, has been reported. [3][4][5] However, to the best of our knowledge, there has been no report that investigated esophageal peristalsis using cine MR with this sequence. If cine MR can demonstrate esophageal peristalsis, it may also enable evaluation of muscular involvement by the tumor, an important prognostic factor.…”