Experimental Research
Difference of accuracy between magnetic induction Freehand-3D ultrasound and two-dimensional ultrasound in measuring the volume of thyroid model
Huang Ying, Wu Xiaofeng, Wang Kai, Hu Mengshang, Zhou Mengqi, Zhang Lihong, Sun Mengyao, Dong Fenglin
Published 2021-04-25
Cite as Chin J Ultrasonogr, 2021, 30(4): 341-345. DOI: 10.3760/cma.j.cn131148-20200930-00786
Abstract
ObjectiveTo investigate the difference of accuracy between magnetic induction Freehand-3D ultrasound and two-dimensional ultrasound in measuring the volume of thyroid model.
MethodsForty thyroid models were established using porcine liver, and the Archimedes procedure was set as gold standard in the measurement of the volume of each model. The accuracy of measurement of the porcine thyroid model volume between two-dimensional ultrasound and magnetic induction Freehand-3D ultrasound were compared.
ResultsThere were no significant differences in the accuracy of measurements of thyroid model volume among two-dimensional ultrasound, magnetic induction Freehand-3D ultrasound and Archimedes procedure (all P>0.05). Compared with the Archimedes procedure, magnetic induction Freehand-3D ultrasonic method showed higher correlation coefficient of the measurement of thyroid model volume (r=0.998). Bland-Altman analysis showed the lower measure error with a relative error of 3.42% and range of -9.57% to 12.07%. And the limits of agreement were (-1.253, 0.999) in the magnetic induction Freehand-3D ultrasonic measurement.
ConclusionsCompared with two-dimensional ultrasound, the magnetic induction Freehand-3D ultrasound show higher accuracy in the measurement of the volume of the thyroid model.
Key words:
Ultrasonography; Magnetic induction Freehand-3D ultrasound; Thyroid; Volume measurement; Thyroid model
Contributor Information
Huang Ying
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Wu Xiaofeng
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Wang Kai
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Hu Mengshang
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Zhou Mengqi
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Zhang Lihong
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Sun Mengyao
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
Dong Fenglin
Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
