Cited 12 times in
Establishing cutoff values for a quality assurance test using an ultrasound phantom in screening ultrasound examinations for hepatocellular carcinoma: an initial report of a nationwide survey in Korea
DC Field | Value | Language |
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dc.contributor.author | 정재준 | - |
dc.date.accessioned | 2014-12-20T17:21:47Z | - |
dc.date.available | 2014-12-20T17:21:47Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 0278-4297 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/94460 | - |
dc.description.abstract | OBJECTIVES: The purpose of this study was to evaluate the results of ultrasound (US) device testing using a US phantom and to determine cutoff values for phantom quality assurance tests in US examinations for the screening of hepatocellular carcinoma in Korea. METHODS: Ultrasound phantom images were acquired from the general hospitals in Korea that participated in the National Cancer Screening Program for hepatocellular carcinoma. Ultrasound images of the phantom were acquired with a 3.0- to 5.0-MHz convex transducer and evaluated in terms of the dead zone, vertical and horizontal measurement, axial and lateral resolution, sensitivity, and gray scale/dynamic range. Appropriate cutoff values were determined to guarantee minimal qualifications for the performance of the US scanners. RESULTS: Three hundred fifty-seven US scanners were tested using the following cutoff values: less than 2 mm for the dead zone, 5% discrepancy in the vertical measurement, 7.5% discrepancy in the horizontal measurement, all 11 identifiable line targets for axial and lateral resolution, more than 14 cm for sensitivity, and more than 4 cylindrical structures for gray scale/dynamic range. With these criteria, 283 US scanners (79.3%) passed the tests. The most common cause of disqualification was the dynamic range/gray scale. No statistical difference was observed in the disqualification rate between 3 groups based on different years of manufacture. CONCLUSIONS: Through this study, we have defined cutoff values for phantom images acquired with US scanners. These will be used in performing screening US examinations for hepatocellular carcinoma in Korea. | - |
dc.description.statementOfResponsibility | open | - |
dc.format.extent | 1221~1229 | - |
dc.relation.isPartOf | JOURNAL OF ULTRASOUND IN MEDICINE | - |
dc.rights | CC BY-NC-ND 2.0 KR | - |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/2.0/kr/ | - |
dc.subject.MESH | Carcinoma, Hepatocellular/diagnostic imaging* | - |
dc.subject.MESH | Hospitals, General | - |
dc.subject.MESH | Humans | - |
dc.subject.MESH | Liver Neoplasms/diagnostic imaging* | - |
dc.subject.MESH | Mass Screening | - |
dc.subject.MESH | Phantoms, Imaging* | - |
dc.subject.MESH | Quality Assurance, Health Care* | - |
dc.subject.MESH | Reproducibility of Results | - |
dc.subject.MESH | Republic of Korea | - |
dc.subject.MESH | Sensitivity and Specificity | - |
dc.subject.MESH | Ultrasonography/instrumentation* | - |
dc.title | Establishing cutoff values for a quality assurance test using an ultrasound phantom in screening ultrasound examinations for hepatocellular carcinoma: an initial report of a nationwide survey in Korea | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학) | - |
dc.contributor.googleauthor | Joon-Il Choi | - |
dc.contributor.googleauthor | Pyo Nyun Kim | - |
dc.contributor.googleauthor | Woo Kyoung Jeong | - |
dc.contributor.googleauthor | Hyun Cheol Kim | - |
dc.contributor.googleauthor | Dal Mo Yang | - |
dc.contributor.googleauthor | Sang Hoon Cha | - |
dc.contributor.googleauthor | Jae-Joon Chung | - |
dc.identifier.doi | 10.7863/jum.2011.30.9.1221 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A03712 | - |
dc.relation.journalcode | J01920 | - |
dc.identifier.eissn | 1550-9613 | - |
dc.identifier.pmid | 21876093 | - |
dc.subject.keyword | hepatocellular carcinoma | - |
dc.subject.keyword | phantom | - |
dc.subject.keyword | quality assurance | - |
dc.subject.keyword | ultrasound | - |
dc.contributor.alternativeName | Chung, Jae Joon | - |
dc.contributor.affiliatedAuthor | Chung, Jae Joon | - |
dc.rights.accessRights | free | - |
dc.citation.volume | 30 | - |
dc.citation.number | 9 | - |
dc.citation.startPage | 1221 | - |
dc.citation.endPage | 1229 | - |
dc.identifier.bibliographicCitation | JOURNAL OF ULTRASOUND IN MEDICINE, Vol.30(9) : 1221-1229, 2011 | - |
dc.identifier.rimsid | 27345 | - |
dc.type.rims | ART | - |
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