The value of three-point localization method for four-chamber view acquisition in cardiac magnetic resonance imaging

Lihong Chen; Tingting QU; Le Cao; Yanan LI; Ganglian Fan; Bing Liu; Zhijie Jian; Jianxin Guo

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The value of three-point localization method for four-chamber view acquisition in cardiac magnetic resonance imaging

VernacularTitle:三点定位技术在心脏MRI四腔心成像中的应用价值
Author: Lihong CHEN ¹ ; Tingting QU ¹ ; Le CAO ¹ ; Yanan LI ¹ ; Ganglian FAN ¹ ; Bing LIU ¹ ; Zhijie JIAN ¹ ; Jianxin GUO ¹
Author Information

1. Department of Medical Imaging, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
Publication Type:Journal Article
Keywords: cardiac magnetic resonance (CMR) imaging; three-point localization method; four-chamber view; speed of imaging; image quality
From: Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(3):491-496
CountryChina
Language:Chinese
Abstract: 【Objective】 To evaluate the application value of the three-point localization method in improving the quality and efficiency of four-chamber view acquisition in cardiac magnetic resonance (CMR) imaging. 【Methods】 A total of 215 patients who underwent four-chamber view in CMR imaging from January 2022 to October 2023 were retrospectively enrolled and divided into two groups. The control group (n=109) received traditional localization method while the study group (n=106) received three-point localization method. The image quality of mitral valve, tricuspid valve and cruciform structure in four-chamber view images were assessed by two radiologists using a Likert 4-piont scale. The time-consumption from scout imaging to the finish of four-chamber view imaging was recorded. Constituent data and numeral data were compared by Chi-square test and two-sample t test, respectively. Kappa test was used to analyze the inter-observer consistency. 【Results】 There were no significant inter-group differences in gender, age, disease profile, or the radiographers’ experience. The mean quality scores of the mitral valve, tricuspid valve and cruciform structure in the control group and the study group were 3.44±0.64 and 3.63±0.49 (P=0.023), 3.43±0.67 and 3.53±0.60(P=0.202), 3.71±0.49 and 3.83±0.35 (P=0.047), respectively. The image quality score was higher in the study group than in the control group, with the differences in mitral valve and cruciform structure reaching statistical significance. The time-consumption for obtaining four-chamber view for the control group and the study group was 11.67±3.49 minutes and 7.212±1.83 minutes, respectively, with statistically significant differences (P<0.001). 【Conclusion】 Compared with the traditional localization method, the three-point localization method provides better image quality in four-chamber view imaging with shortened imaging time.