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• Clinical Article •
Cardiac magnetic resonance right ventricular myocardial strain was applied to normal smoking population: a pilot study
MA Shuangchun  LI Xin  LI Xiaofan  SONG Qingwei  LIU Ailian  LI Zhiyong 

Cite this article as: Ma SC, Li X, Li XF, et al. Cardiac magnetic resonance right ventricular myocardial strain was applied to normal smoking population: a pilot study. Chin J Magn Reson Imaging, 2020, 11(11): 999-1003. DOI:10.12015/issn.1674-8034.2020.11.009.


[Abstract] Objective: To investigate the relationship between right ventricular (RV) myocardial strain (MS), right ventricular structural and functional parameters and smoking parameters in smoking volunteers with cardiac magnetic resonance (CMR).Materials and Methods: Forty-nine normal male smoking volunteers who underwent standard cardiac image acquisition in the First Affiliated Hospital of Dalian Medical University from May 2019 to January 2020 were prospective collected in the study. The detailed smoking status of each volunteer was recorded and summarized. All volunteers performed routine scans on a GE 3.0 T magnetic resonance scanner, including two-chamber, three-chamber, four-chamber and left ventricular (LV) short-axis movies. RVMS parameters including global radial strain (GRS), global circumferential strain (GCS), global longitudinal strain (GLS) and RV structure and functional parameters were measured. The correlation between RVMS, structural and functional parameters and smoking parameters were analyzed with Spearman correlation coefficient.Results: Smoking time was only positively correlated with RVGLS (r=0.324, P=0.023). Smoking intensity was positively correlated with RVGRS and RVGCS (r=0.374, P=0.008; r=0.345, P=0.015) and had a negative correlation with RV end-diastolic volume index (RVEDVi) and RV end-stolic volume index (RVESVi) (r=-0.318, P=0.026; r=-0.325, P=0.022). Smoking burden was positively correlated with RVGRS and RVGLS (r=0.298, P=0.037; r=0.372, P=0.009).Conclusions: Smoking can affect RV. With the increase of smoking time and smoking quantity, RVMS parameters may have a compensatory increase significantly under a certain load. There may be a compensatory mechanism of RV myocardium on the influence caused by smoking.
[Keywords] cardiac magnetic resonance；right ventricle；myocardial strain；smoking

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

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

LI Xiaofan Circle Cardiovascular Imaging, Calgary, AB, Canada T2P 3T6

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

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

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

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

Conflicts of interest   None.

ACKNOWLEDGMENTS  This article is supported by the Research Fund Project of Liaoning Provincial Education Department No. L2016021
Received  2020-04-20
Accepted  2020-09-21
DOI: 10.12015/issn.1674-8034.2020.11.009
Cite this article as: Ma SC, Li X, Li XF, et al. Cardiac magnetic resonance right ventricular myocardial strain was applied to normal smoking population: a pilot study. Chin J Magn Reson Imaging, 2020, 11(11): 999-1003. DOI:10.12015/issn.1674-8034.2020.11.009.

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