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Quality Assurance of Ultrasonography Scanner Using a Phantom Designed for Quality Control and Teaching
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- Sakurai Masaru
- Ultrasound Center, Laboratory Division, St. Marianna University Hospital
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- Fukuda Mamoru
- Department of Breast and Endocrine Surgery, St. Marianna University School of Medicine
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- Imamura Keiko
- Department of Radiology, St. Marianna University School of Medicine
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- Tsujimoto Fumio
- Division of Laboratory, St. Marianna University Hospital
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- Endo Tokiko
- Division of Radiology, Nagoya National Medical Center
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- Morita Takako
- Division of Breast, Chunichi Hospital
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- Nakashima Kazutaka
- Department of Breast and Thyroid Surgery, Kawasaki Medical School
Bibliographic Information
- Other Title
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- 超音波検診導入に向けて（５）精度管理用ファントムによる超音波診断装置の精度管理と品質管理および教育用ファントムの作成
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Description
In order to apply ultrasonography examination to breast cancer screening, it is essential to maintain quality assurance and perform regular inspection of the ultrasonography scanner and probe. After repeated trials, we have succeeded in making a phantom usable for quality assurance, and devised a standard plan for assessing figure quality obtained by ultrasonography for use in breast cancer screening. Due to the rapid development of ultrasonography machines, there are problems with blurring of the focus point, which results from differences in sound speed. Although our standard covers a rather wide range, we think that it can delineate the lowest point of the required standard that a machine should have. The phantom used for quality assurance is useful for daily checking of ultrasound scanners; when a new machine is purchased or if a probe is changed, we obtain control data by using the phantom, and this allows us to detect deterioration of figure quality by periodically obtaining scans of the phantom. We have also selected checking items for daily quality assurance in order to use the machines safely.<br>The teaching phantom we have devised was originally made of soft materials and it took a long time to obtain one that was almost satisfactory. We are now using it for courses with good results, and conducting an ongoing study using sham lesions inserted into the phantom. Hereafter we will examine the usability of our standard and the method of quality assurance we devised for the course.
Journal
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- Nihon Nyugan Kenshin Gakkaishi (Journal of Japan Association of Breast Cancer Screening)
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Nihon Nyugan Kenshin Gakkaishi (Journal of Japan Association of Breast Cancer Screening) 17 (1), 52-59, 2008
Japan Association of Breast Cancer Screening
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Details 詳細情報について
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- CRID
- 1390282679439531392
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- NII Article ID
- 130004513293
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- ISSN
- 18826873
- 09180729
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed