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KMID : 0357520230460010015
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Journal of Radiological Science and Technology
2023 Volume.46 No. 1 p.15 ~ p.21
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Evaluation of the Resolution Characteristics by Using ATS 535H Phantom for Ultrasound Medical Imaging
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Min Jung-Whan
Jeong Hoi-Woun
Kang Hea-Kyung
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Abstract
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This study was purpose to assessment of the resolution characteristics by using ATS 535H Basic quality assurance (QA) phantom for ultrasound. The ultrasound equipment was used Logiq P6 (Ultrasound, GE Healthcare System, Chicago, IL, USA). And the ultrasound transducer were used Convex 4C (4∼5.5 MHz), Linear 11L (10∼13 MHz), Sector 3SP (3∼5.5 MHz) probe. As for the noise power spectrum (NPS) comparison results by using ATS 535H Basic QA ultrasound phantom and Convex 4C, Linear 11L, Sector 3SP probe. The NPS value of the Convex 4C probe image was 0.0049, Linear 11L probe image was 0.0049, Sector 3SP probe image was 0.1422 when the frequency is 1.0 mm-1. The modulation transfer function (MTF) comparison results by using ATS 535H Basic QA ultrasound phantom and Linear 11L probe the MTF value of the 3 cm focus image was 0.7511 and 4 cm focus image was 0.9001 when the frequency is 1.0 mm-1. This study was presented characteristics of spatial resolution a quantitative evaluation methods by using ultrasound medical images for QA of ultrasound medical QA phantom. The quality control (QC) for equipment maintenance can be efficiently used in the clinic due to the quantitative evaluation of the NPS and MTF as the standard methods. It is meaningful in that it is applied mutatis mutandis and presented the results of physical resolution characteristics of the ultrasound medical image.
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KEYWORD
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ATS 535H Phantom, Noise Power Spectrum, Modulation transfer function, Edge method, Resolution Characteristics, Quality Assura
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