Optimizing cine MRI for uterine peristalsis: A comparison of three different single shot fast spin echo techniques

Asako Nakai*, Caroline Reinhold, Patricia Noel, Aki Kido, Khashayar Rafatzand, Isao Ito, Kaori Togashi

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

12 被引用数 (Scopus)

抄録

Purpose To determine the optimal single shot fast spin echo (SSFSE) technique by varying interval between image acquisitions for cine MRI of uterine peristalsis. Materials and Methods MRI was performed in 13 premenopausal women (4 normal and 9 with benign pelvic pathology) in various phases of their menstrual cycle. Midsagittal uterus was scanned using a multiphasic SSFSE technique at 2-, 3-, and 4-s intervals over 2 min. Three readers independently and randomly evaluated for peristaltic frequency/2 min, longitudinal direction and intensity of peristalsis in three imaging parameters. Contrast-to-noise ratios (CNRs) were also obtained. Results Peristaltic frequency for the 2, 3, and 4 s was 2.2 ± 2.3, 3.3 ± 1.5, and 3.6 ± 1.3 waves/2 min, respectively. It increased by 1.5 (95% confidence interval [CI]: 0.31-2.64) waves/2 min with 4 s compared with 2 s. Direction was detected for the 2, 3, and 4 s in 5/13(38%), 9/13(69%) and 12/13(92%) women. Compared with 2 s, intensity of peristalsis in endometrial movement (P = 0.04), signal change of the JZ (P = 0.03), and spread into outer myometrium (P = 0.02), CNR endometrium-JZ by 57% (P < 0.001), and CNR outer myometrium-JZ by 45% (P < 0.01) increased with 4 s. Conclusion Cine MRI with SSFSE sequence for uterine peristaltism is best performed using a 4-s scan interval.

本文言語英語
ページ(範囲)161-167
ページ数7
ジャーナルJournal of Magnetic Resonance Imaging
38
1
DOI
出版ステータス出版済み - 2013/07

ASJC Scopus 主題領域

  • 放射線学、核医学およびイメージング

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