Clinical Investigation on Foure-dimensional Left Atrial Automatic Quantitative Technology in Evaluating Left Atrial Volume and Function

Yueyue TANG; Hanning YANG; Youliang JIN; Shumin LI; Yongping LU

doi:10.12259/j.issn.2095-610X.S20230713

Volume 44 Issue 7

Jul. 2023

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Article Navigation > Journal of Kunming Medical University > 2023 > 44(7): 57-63

Yueyue TANG, Hanning YANG, Youliang JIN, Shumin LI, Yongping LU. Clinical Investigation on Foure-dimensional Left Atrial Automatic Quantitative Technology in Evaluating Left Atrial Volume and Function[J]. Journal of Kunming Medical University, 2023, 44(7): 57-63. doi: 10.12259/j.issn.2095-610X.S20230713

Citation:

Yueyue TANG, Hanning YANG, Youliang JIN, Shumin LI, Yongping LU. Clinical Investigation on Foure-dimensional Left Atrial Automatic Quantitative Technology in Evaluating Left Atrial Volume and Function[J]. Journal of Kunming Medical University, 2023, 44(7): 57-63. doi: 10.12259/j.issn.2095-610X.S20230713

Citation:

Yueyue TANG, Hanning YANG, Youliang JIN, Shumin LI, Yongping LU. Clinical Investigation on Foure-dimensional Left Atrial Automatic Quantitative Technology in Evaluating Left Atrial Volume and Function[J]. Journal of Kunming Medical University, 2023, 44(7): 57-63. doi: 10.12259/j.issn.2095-610X.S20230713

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Clinical Investigation on Foure-dimensional Left Atrial Automatic Quantitative Technology in Evaluating Left Atrial Volume and Function

doi: 10.12259/j.issn.2095-610X.S20230713

Dept. of Ultrasound，Affiliated Hospital of Yunnan University/The 2nd People’s Hospital of Yunnan Province，Kunming Yunnan 650021，China

Received Date: 2023-04-17
Available Online: 2023-07-18
Publish Date: 2023-07-25

Abstract

Abstract

Objective To explore the role of four-dimensional left atrial automatic quantitative technology in evaluating the volume and function of the left atrium in non-selective continuous patients, and to preliminarily explore its accuracy and repeatability. Methods Foure-dimensional left atrial full-volume dynamic images of 187 consecutive patients were collected, 44 patients who failed the analysis were excluded, and 143 were successfully analyzed. Using Simpson’s biplane method as the reference standard, the 4D Auto LAQ technology was used to evaluate the left atrial end-diastolic volume （LAVmax）, left atrial end-systolic volume （LAVmin）, left atrial maximum volume index （LAVImax）, and left atrial global ejection fraction. （LAEF） accuracy and repeatability. Results In all patients who were successfully analyzed, the inter-technique comparisons showed good correlations （R-values: LAVmax 0.91, LAVmin 0.89, LAVI 0.90, LAEF 0.54; all P < 0.01）, small biases （ LAVmax 10.1 mL, LAVmin 3.1 mL, LAVI 6.4 mL, LAEF 10.0%; Concordance interval: LAVmax （-30.7-50.9） mL, LAVmin （-32.2-38.4） mL, LAVI （-21.2-34.1） mL, LAEF （-19.8-39.8）%] for all measurements in all patients. 4D Auto LAQ technology showed good correlation between the parameters of different cardiac cycles （r value: LAVmax 0.99, LAVmin 0.98, LAVImax 0.99, LAEF 0.92; all P < 0.01）, and the average measurement difference did not exceed two measurement units （1 mL/volume, 1%/LAEF）, the consistency interval is also narrow [LAVmax （-8.9-7.9） mL, LAVmin （-7.9-10.8） mL, LAVI （-7.9-10.8） mL/m², LAEF （-14.8-9.1）%. The intra- and inter-observer repeatability of each parameter of 4D Auto LAQ technology was good （within-group correlation coefficients were all > 0.8, 0.81-0.99, and coefficients of variation were all < 10%）, and it was better than Simpson’s biplane method. Compared with Simpson’s biplane method, the time of 4D Auto LAQ quantitative technology was significantly reduced, which were （30.87±5.05）s and （60.20±5.05）s respectively （P < 0.05）. Conclusions Since4D Auto LAQ technology can be widely used in clinical practice as a feasible and objective ultrasound technique.
- Foure-dimensional left atrium automated quantification,
- Simpson’s biplane method,
- Left atrial function,
- Left atrial volume

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References(24)

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