Cited 26 times in
Intraindividual Comparison of Diagnostic Performance in Patients With Hepatic Metastasis of Full-Dose Standard and Half-Dose Iterative Reconstructions With Dual-Source Abdominal Computed Tomography
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김기황 | - |
dc.contributor.author | 김명진 | - |
dc.contributor.author | 박미나 | - |
dc.contributor.author | 박미숙 | - |
dc.contributor.author | 이혜선 | - |
dc.contributor.author | 정용은 | - |
dc.contributor.author | 최진영 | - |
dc.date.accessioned | 2015-01-06T16:43:20Z | - |
dc.date.available | 2015-01-06T16:43:20Z | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 0020-9996 | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/98639 | - |
dc.description.abstract | OBJECTIVES: The objectives of the study were to evaluate the image quality and diagnostic performance of sinogram-affirmed iterative reconstruction (SAFIRE) for detecting hepatic metastasis and to estimate the potential radiation dose reduction at abdominal computed tomography (CT). MATERIALS AND METHODS: Fifty-nine consecutive patients (mean age, 59.2 years; range, 42-81 years) who had hepatic metastasis and who underwent dual-source abdominal CT were enrolled in this study. The image noise of the liver was compared between full-dose filtered back projection images (FD-FBP) and simulated half-dose images, which used only single-source projection data, and reconstructed with different strengths of SAFIRE (HD-SAFIRE(1-5)) by 1-way analysis of variance with Bonferroni correction. The diagnostic performance for hepatic metastasis was compared by logistic regression with the weighted least squares method and noninferiority test between the FD-FBP images and the half-dose sinogram-affirmed iterative reconstruction (HD-SAFIRE) images. RESULTS: As the SAFIRE strength increased, image noise decreased (P < 0.001). The images of HD-SAFIRE(2) showed similar image noise for liver parenchyma (13.4 Hounsfield unit [HU]), signal-to-noise ratio for liver parenchyma (9.2), and lesion-to-liver contrast-to-noise ratio (4.5), compared with the FD-FBP images (12.6 HU, P = 0.668; 9.6, P > 0.999; and 4.5, P > 0.999, respectively). The diagnostic accuracy for hepatic metastasis with the HD-SAFIRE(2) images (87.5%) was not different from that of the FD-FBP images (87.5%, P > 0.999). The diagnostic performance of the HD-SAFIRE(2) images was also noninferior to that of the FD-FBP images (95% confidence interval lower limit difference [-9.16%] excluding the -10% clinical noninferiority limit). The mean (SD) volume CT dose index of FD-FBP was 11.26 (2.66) mGy, and the mean (SD) radiation dose equivalent associated with HD-SAFIRE was estimated to be 5.63 (1.33) mGy. CONCLUSIONS: By applying SAFIRE2, the radiation dose could be reduced by up to 50% compared with the standard-of-care abdominal CT protocol without increasing image noise and without deteriorating diagnostic performance for the detection of hepatic metastasis. | - |
dc.description.statementOfResponsibility | open | - |
dc.format.extent | 195~200 | - |
dc.relation.isPartOf | INVESTIGATIVE RADIOLOGY | - |
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 | Adult | - |
dc.subject.MESH | Aged | - |
dc.subject.MESH | Female | - |
dc.subject.MESH | Humans | - |
dc.subject.MESH | Liver Neoplasms/diagnostic imaging* | - |
dc.subject.MESH | Liver Neoplasms/secondary* | - |
dc.subject.MESH | Male | - |
dc.subject.MESH | Middle Aged | - |
dc.subject.MESH | Observer Variation | - |
dc.subject.MESH | Radiation Dosage* | - |
dc.subject.MESH | Radiation Protection/methods* | - |
dc.subject.MESH | Radiographic Image Enhancement/methods | - |
dc.subject.MESH | Radiographic Image Interpretation, Computer-Assisted/methods* | - |
dc.subject.MESH | Radiography, Abdominal/methods | - |
dc.subject.MESH | Radiography, Dual-Energy Scanned Projection/methods* | - |
dc.subject.MESH | Radiometry | - |
dc.subject.MESH | Reproducibility of Results | - |
dc.subject.MESH | Sensitivity and Specificity | - |
dc.subject.MESH | Tomography, X-Ray Computed/methods* | - |
dc.title | Intraindividual Comparison of Diagnostic Performance in Patients With Hepatic Metastasis of Full-Dose Standard and Half-Dose Iterative Reconstructions With Dual-Source Abdominal Computed Tomography | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Yonsei Biomedical Research Center (연세의생명연구원) | - |
dc.contributor.googleauthor | Mina Park | - |
dc.contributor.googleauthor | Yong Eun Chung | - |
dc.contributor.googleauthor | Hye Sun Lee | - |
dc.contributor.googleauthor | Jin-Young Choi | - |
dc.contributor.googleauthor | Mi-Suk Park | - |
dc.contributor.googleauthor | Myeong-Jin Kim | - |
dc.contributor.googleauthor | Ki Whang Kim | - |
dc.identifier.doi | 10.1097/RLI.0000000000000014 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A03312 | - |
dc.contributor.localId | A00345 | - |
dc.contributor.localId | A00426 | - |
dc.contributor.localId | A01460 | - |
dc.contributor.localId | A01463 | - |
dc.contributor.localId | A03662 | - |
dc.contributor.localId | A04200 | - |
dc.relation.journalcode | J01188 | - |
dc.identifier.eissn | 1536-0210 | - |
dc.identifier.pmid | 24300843 | - |
dc.identifier.url | http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00004424-201404000-00002&LSLINK=80&D=ovft | - |
dc.subject.keyword | iterative reconstruction | - |
dc.subject.keyword | abdominal CT scan | - |
dc.subject.keyword | radiation dose | - |
dc.subject.keyword | hepatic metastasis | - |
dc.subject.keyword | image noise | - |
dc.contributor.alternativeName | Kim, Ki Whang | - |
dc.contributor.alternativeName | Kim, Myeong Jin | - |
dc.contributor.alternativeName | Park, Mi Na | - |
dc.contributor.alternativeName | Park, Mi Sook | - |
dc.contributor.alternativeName | Lee, Hye Sun | - |
dc.contributor.alternativeName | Chung, Yong Eun | - |
dc.contributor.alternativeName | Choi, Jin Young | - |
dc.contributor.affiliatedAuthor | Lee, Hye Sun | - |
dc.contributor.affiliatedAuthor | Kim, Ki Whang | - |
dc.contributor.affiliatedAuthor | Kim, Myeong Jin | - |
dc.contributor.affiliatedAuthor | Park, Mi Na | - |
dc.contributor.affiliatedAuthor | Park, Mi-Suk | - |
dc.contributor.affiliatedAuthor | Chung, Yong Eun | - |
dc.contributor.affiliatedAuthor | Choi, Jin Young | - |
dc.rights.accessRights | free | - |
dc.citation.volume | 49 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 195 | - |
dc.citation.endPage | 200 | - |
dc.identifier.bibliographicCitation | INVESTIGATIVE RADIOLOGY, Vol.49(4) : 195-200, 2014 | - |
dc.identifier.rimsid | 38167 | - |
dc.type.rims | ART | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.