title: Optimized approach to cine MRI of uterine peristalsis.
abstract: To determine the optimal slice thickness, playback rate, and scan time for uterine peristalsis with 3.0T magnetic resonance imaging (MRI).
  
  
  
  In all, 23 young female volunteers underwent a 3.0T MRI scan with different slice thicknesses of 3 mm (Cine3mm), 5 mm (Cine5mm), and 7 mm (Cine7mm) for 6 minutes. Subjective image quality score, signal-to-noise ratios (SNRs), and contrast-to-noise ratios (CNRs) of those MR images were evaluated by two radiologists independently. The number, intensity, and direction of uterine peristalsis with different thickness were compared at various playback rates. Also, the peristalsis frequency was counted and compared in different acquisition durations (1-6 minutes).
  
  
  
  The subjective image quality score, peristalsis number, and intensity were significantly higher in Cine7mmand Cine5mmthan Cine3mm(P < 0.05), while the SNRs and CNRs of Cine7mmwere significantly higher than Cine3mm(P < 0.05). Peristalsis numbers did not differ significantly at different playback rates with the same slice thickness (P = 0.548-0.962). However, peristalsis intensity at 12×, and 15× was significantly greater than that at 8× the actual speed for Cine7mmand Cine5mm(P < 0.05). The peristalsis frequency at 3, 4, 5, 6 minutes was significantly higher than that at 1 minute and 2 minutes (P < 0.05).
  
  
  
  We recommend a slice thickness of 5 mm or 7 mm and a scan time of 3 minutes for uterine peristalsis with 3.0T MRI, and a playback rate of 12× or 15× the actual speed for peristalsis observation. J. Magn. Reson. Imaging 2016;44:1397-1404.
authors.affiliation: Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Liu
authors.affiliation: Department of Radiology, Jiangsu Province Official Hospital, Nanjing, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Department of Radiology, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China.
authors.forename: Chengying
authors.initials: C
authors.lastname: Yin
authors.affiliation: Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
authors.forename: Song
authors.initials: S
authors.lastname: Liu
authors.affiliation: Philips Healthcare, Hong Kong, China.
authors.forename: Queenie
authors.initials: Q
authors.lastname: Chan
authors.affiliation: Philips Healthcare, Shanghai, China.
authors.forename: Weibo
authors.initials: W
authors.lastname: Chen
authors.affiliation: Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
authors.forename: Jian
authors.initials: J
authors.lastname: He
authors.affiliation: Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhu
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D019028:Magnetic Resonance Imaging, Cine / Q000379:methods*; D008597:Menstrual Cycle / Q000502:physiology; D015588:Observer Variation; D010528:Peristalsis / Q000502:physiology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D059629:Signal-To-Noise Ratio; D014590:Uterine Contraction / Q000502:physiology*; D014599:Uterus / Q000000981:diagnostic imaging* / Q000502:physiology*; D055815:Young Adult
keywords: cine; image quality; magnetic resonance imaging; signal-to-noise ratio; slice thickness; uterine peristalsis