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• Clinical Article •
A preliminary study of cardiac magnetic resonance myocardial strain technique in the left atrium of normal male smokers
TIAN Di  LI Xin  ZHAO Wenjing  SONG Qingwei  LIU Ailian  LI Zhiyong 

Cite this article as: Tian D, Li X, Zhao WJ, et al. A preliminary study of cardiac magnetic resonance myocardial strain technique in the left atrium of normal male smokers[J]. Chin J Magn Reson Imaging, 2021, 12(11): 21-25. DOI:10.12015/issn.1674-8034.2021.11.005.


[Abstract] Objective To assess the left atrial (LA) structure, function and myocardial strain (MS) between normal male smokers and non-smokers using cardiac magnetic resonance (CMR) MS technique.Materials and Methods: Seventy normal male volunteers underwent conventional heart scanning in 3.0 T magnetic resonance in our hospital were enrolled in this study. They were divided into a smoker group (44 volunteers) and a non-smoker group (26 volunteers). General information and clinical data were documented. The left atrial (LA) structure, function and MS parameters were measured by Medis Suite software. MS parameters included global longitudinal strain (GLS), global radial strain (GRS), and global circumferential strain (GCS). We compared the differences in LA structure, function and MS parameters between the non-smoker group and smoker group.Results LA MS parameters showed good consistency within and between the group (ICC≥0.75). GCS and GRS in smoker group were significantly lower than in non-smoker group (33.81%±11.23% vs. 40.21%±11.84%, -28.99%±4.95% vs. -31.66%±4.75%, all P＜0.05). There was no statistically difference in LA structure and function parameters between two groups.Conclusions In contrast with non-smoker volunteers, LA GCS and GRS of smoker volunteers were damaged to a certain extent, before the changes of LA structure and function.
[Keywords] cardiac magnetic resonance；left atrial；global longitudinal strain；global radial strain；global circumferential strain；myocardial strain；smoking；male

TIAN Di   LI Xin   ZHAO Wenjing   SONG Qingwei   LIU Ailian   LI Zhiyong*  

Department of Radiology, the First Affiliated Hospital of Dalian Medical University, Dalian 116011, China

Li ZY, E-mail: zjy_lzy@126.com

Conflicts of interest   None.

ACKNOWLEDGMENTS Scientific Research Foundation of Education Department of Liaoning Province (No. L2016021).
Received  2021-04-10
Accepted  2021-08-19
DOI: 10.12015/issn.1674-8034.2021.11.005
Cite this article as: Tian D, Li X, Zhao WJ, et al. A preliminary study of cardiac magnetic resonance myocardial strain technique in the left atrium of normal male smokers[J]. Chin J Magn Reson Imaging, 2021, 12(11): 21-25. DOI:10.12015/issn.1674-8034.2021.11.005.

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