Please use this identifier to cite or link to this item: https://doi.org/10.1186/s12968-023-00960-x
Title: Age- and sex-specific reference values of biventricular flow components and kinetic energy by 4D flow cardiovascular magnetic resonance in healthy subjects
Authors: Zhao, Xiaodan
Tan, Ru-San 
Garg, Pankaj
Chai, Ping 
Leng, Shuang 
Bryant, Jennifer Ann 
Teo, Lynette LS 
Yeo, Tee Joo 
Fortier, Marielle V 
Low, Ting Ting 
Ong, Ching Ching 
Zhang, Shuo
Van der Geest, Rob J
Allen, John C 
Tan, Teng Hong 
Yip, James W 
Tan, Ju Le
Hughes, Marina
Plein, Sven
Westenberg, Jos JM
Zhong, Liang 
Keywords: Science & Technology
Life Sciences & Biomedicine
Cardiac & Cardiovascular Systems
Radiology, Nuclear Medicine & Medical Imaging
Cardiovascular System & Cardiology
4D flow
Kinetic energy
Flow components
Hemodynamics
Reference values
VENTRICULAR FLOW
BLOOD-FLOW
DYSFUNCTION
ETHNICITY
IMPACT
MRI
LV
Issue Date: 18-Sep-2023
Publisher: BMC
Citation: Zhao, Xiaodan, Tan, Ru-San, Garg, Pankaj, Chai, Ping, Leng, Shuang, Bryant, Jennifer Ann, Teo, Lynette LS, Yeo, Tee Joo, Fortier, Marielle V, Low, Ting Ting, Ong, Ching Ching, Zhang, Shuo, Van der Geest, Rob J, Allen, John C, Tan, Teng Hong, Yip, James W, Tan, Ju Le, Hughes, Marina, Plein, Sven, Westenberg, Jos JM, Zhong, Liang (2023-09-18). Age- and sex-specific reference values of biventricular flow components and kinetic energy by 4D flow cardiovascular magnetic resonance in healthy subjects. JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE 25 (1). ScholarBank@NUS Repository. https://doi.org/10.1186/s12968-023-00960-x
Abstract: Background: Advances in four-dimensional flow cardiovascular magnetic resonance (4D flow CMR) have allowed quantification of left ventricular (LV) and right ventricular (RV) blood flow. We aimed to (1) investigate age and sex differences of 4D flow CMR-derived LV and RV relative flow components and kinetic energy (KE) parameters indexed to end-diastolic volume (KEiEDV) in healthy subjects; and (2) assess the effects of age and sex on these parameters. Methods: We performed 4D flow analysis in 163 healthy participants (42% female; mean age 43 ± 13 years) of a prospective registry study (NCT03217240) who were free of cardiovascular diseases. Relative flow components (direct flow, retained inflow, delayed ejection flow, residual volume) and multiple phasic KEiEDV (global, peak systolic, average systolic, average diastolic, peak E-wave, peak A-wave) for both LV and RV were analysed. Results: Compared with men, women had lower median LV and RV residual volume, and LV peak and average systolic KEiEDV, and higher median values of RV direct flow, RV global KEiEDV, RV average diastolic KEiEDV, and RV peak E-wave KEiEDV. ANOVA analysis found there were no differences in flow components, peak and average systolic, average diastolic and global KEiEDV for both LV and RV across age groups. Peak A-wave KEiEDV increased significantly (r = 0.458 for LV and 0.341 for RV), whereas peak E-wave KEiEDV (r = − 0.355 for LV and − 0.318 for RV), and KEiEDV E/A ratio (r = − 0.475 for LV and − 0.504 for RV) decreased significantly, with age. Conclusion: These data using state-of-the-art 4D flow CMR show that biventricular flow components and kinetic energy parameters vary significantly by age and sex. Age and sex trends should be considered in the interpretation of quantitative measures of biventricular flow. Clinical trial registration https://www.clinicaltrials.gov . Unique identifier: NCT03217240.
Source Title: JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE
URI: https://scholarbank.nus.edu.sg/handle/10635/245958
ISSN: 1097-6647
1532-429X
DOI: 10.1186/s12968-023-00960-x
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