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Explorative research on image quantification methods for setup conditions and quality control of ultrasound devices
Chisato Takahashi1,2, Yukio Kimura1, Shoko Nishiyama2,3
1Department of Laboratory Medicine, School of Medicine, Fukushima Medical University, 1 Hikarigaoka, Fukushima-shi, Fukushima, 960-1295, Japan.
Purpose:
The study explored the quantitative analysis of portable ultrasound devices using target images from Multipurpose Phantom N-365. It focused on identifying inter-device variability and time-dependent degradation of the devices and their probes to support standardization and quality control of ultrasound devices.
Methods:
Three ultrasound device models were assessed, with two different setup conditions for each model. Three types of phantom targets, i.e., cyst-like, colloid cyst-like, and nodule-like, were collected from circular grayscale targets. The mean and standard deviation (SD) of brightness were calculated for each target type.
Results:
Quantification of the mean and SD values of target brightness effectively distinguished between ultrasound devices due to the aging of the ultrasound equipment. Multivariate analysis further revealed that both the probes and the main unit independently contributed to time-related changes.
Conclusion:
This article presents a novel method for ensuring rigorous quality control and promoting standardization in ultrasound examinations by quantifying phantom image characteristics.
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