Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 정우경 | - |
dc.date.accessioned | 2018-02-14T05:19:44Z | - |
dc.date.available | 2018-02-14T05:19:44Z | - |
dc.date.issued | 2011-09 | - |
dc.identifier.citation | JOURNAL OF ULTRASOUND IN MEDICINE, Vol.30, No.9 [2011], p1221-1229 | en_US |
dc.identifier.issn | 0278-4297 | - |
dc.identifier.uri | https://onlinelibrary.wiley.com/doi/abs/10.7863/jum.2011.30.9.1221 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11754/37420 | - |
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 I 1 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. | en_US |
dc.language.iso | en | en_US |
dc.publisher | AMER INST ULTRASOUND MEDICINE, SUBSCRIPTION DEPT, 14750 SWEITZER LANE, STE 100, LAUREL, MD 20707-5906 USA | en_US |
dc.subject | hepatocellular carcinoma | en_US |
dc.subject | phantom | en_US |
dc.subject | quality assurance | en_US |
dc.subject | ultrasound | en_US |
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 | en_US |
dc.type | Article | en_US |
dc.relation.no | 9 | - |
dc.relation.volume | 30 | - |
dc.identifier.doi | 10.7863/jum.2011.30.9.1221 | - |
dc.relation.page | 1221-1229 | - |
dc.relation.journal | JOURNAL OF ULTRASOUND IN MEDICINE | - |
dc.contributor.googleauthor | Kim, Pyo-Nyun | - |
dc.contributor.googleauthor | Choi, Joon-Il | - |
dc.contributor.googleauthor | Jeong, Woo-Kyoung | - |
dc.contributor.googleauthor | Kim, Hyun-Cheol | - |
dc.contributor.googleauthor | Yang, Dal-Mo | - |
dc.contributor.googleauthor | Cha, Sang-Hoon | - |
dc.contributor.googleauthor | Chung, Jae-Joon | - |
dc.relation.code | 2011206088 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF MEDICINE[S] | - |
dc.sector.department | DEPARTMENT OF MEDICINE | - |
dc.identifier.pid | jeongwk | - |
dc.identifier.researcherID | 14012468500 | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.