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• Clinical Article •
Quantitative assessment of small bowel motility in healthy individuals using MR cine
WANG Zi  HU Dao-yu  TANG Hao  MENG Xiao-yan  LI Jian-jun  SHEN Ya-qi  WANG Yan-chun  LIU Xiao-yu 

DOI:10.3969/j.issn.1674-8034.2014.06.011.


[Abstract] Objective: The aim of this study was to evaluate the small bowel motility in healthy individuals using MR cine.Materials and Methods: From Oct. 2012 to Mar. 2014, 44 healthy individuals were included in this study. A two minutes MR cine sequence was performed on each individual with no breath-hold using 3.0 T MR (GE 750 Dicovery). Time-caliber graph was plotted on two selected small bowel segments at left upper quadrant and right lower quadrant on each image to obtain the maximum luminal diameter, contraction period, frequency and duration of pause.Results: All subjects were tolerated to the examination without complications. 86 small bowel segments were measured on MR cine images. Duration of pause existed in all selected small bowel segments. The maximum luminal diameter, contraction period, frequency and duration of pause on left upper quadrant and right lower quadrant were (17.66±2.27) mm, (8.64±0.69) s, (3.03±0.61) min, (54.19±15.10) s and (17.42±1.87) mm, (8.75±0.77) s, (3.86±0.54) min, (47.47±15.82) s. The difference of frequency and duration of pause between two selected small bowel segments was statistically significant.Conclusions: MR cine enables us to evaluate the small bowel motility quantitatively and noninvasively. Further study could be made on the impaired peristalsis on different kinds of functional or organic small bowel diseases based on the characterization of the normal small bowel motility.
[Keywords] Small intestine；Peristalsis；Magnetic resonance imaging, cine

WANG Zi Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

HU Dao-yu * Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

TANG Hao Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

MENG Xiao-yan Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

LI Jian-jun Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

SHEN Ya-qi Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

WANG Yan-chun Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

LIU Xiao-yu Department of Radiology, Tongji Hospital, Tongji Medical College, Wuhan 430030, China

*Correspondence to: Hu DY, E-mail:cjr.hudaoyu@vip.163.com

Conflicts of interest   None.

Received  2014-06-19
Accepted  2014-09-11
DOI: 10.3969/j.issn.1674-8034.2014.06.011
DOI:10.3969/j.issn.1674-8034.2014.06.011.

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