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Different Perfusion Pattern Between Acute and Chronic Pulmonary Thromboembolism: Evaluation With Two-Phase Dual-Energy Perfusion CT Read More: http://www.ajronline.org/doi/abs/10.2214/AJR.12.8697

DC FieldValueLanguage
dc.contributor.author이혜정-
dc.contributor.author최규옥-
dc.contributor.author최병욱-
dc.contributor.author허진-
dc.contributor.author홍유진-
dc.contributor.author김영진-
dc.contributor.author김자영-
dc.date.accessioned2014-12-18T08:51:23Z-
dc.date.available2014-12-18T08:51:23Z-
dc.date.issued2013-
dc.identifier.issn0361-803X-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/87077-
dc.description.abstractOBJECTIVE: The purpose of this study was to evaluate whether two-phase dual-energy CT can differentiate between lung perfusion patterns of patients with chronic pulmonary thromboembolism (PTE) and those of patients with acute PTE. SUBJECTS AND METHODS: A total of 114 patients clinically suspected to have PTE were prospectively enrolled. All patients underwent dual-energy CT at pulmonary artery (PA) and delayed phases. Of 68 patients diagnosed with PTE on CT, 42 were finally included. Iodine-related attenuation values (IRAs) were measured in PA and delayed phases for each lung segment, and IRA change ratios were calculated using the formula 100% × [(IRA of delayed phase) - (IRA of PA phase)]/(IRA of PA phase). RESULTS: Among the 42 patients (19 men and 23 women; mean age, 60.3 ± 13.2 years; range, 28-82 years), 24 had a diagnosis of acute PTE and 18 of chronic PTE. Those segments with both perfusion and filling defects (n = 143) in patients with acute PTE showed no significant changes of mean IRA between PA and delayed phases, whereas the segments from patients with chronic PTE (n = 94) showed significantly increased IRA on delayed phase as compared with PA phase. The mean IRA change ratios in acute and chronic PTE were -3.14% and 191.9%, respectively (p < 0.0001). CONCLUSION: Chronic PTE segments were significantly more enhanced on the delayed phase of two-phase dual-energy CT images than were acute PTE segments, possibly resulting from more extensive systemic collateral formation in chronic PTE. Two-phase dual-energy CT can be used to differentiate distinct regional perfusion patterns between acute and chronic PTE.-
dc.description.statementOfResponsibilityopen-
dc.relation.isPartOfAMERICAN JOURNAL OF ROENTGENOLOGY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAcute Disease-
dc.subject.MESHAdult-
dc.subject.MESHAged-
dc.subject.MESHAged, 80 and over-
dc.subject.MESHChronic Disease-
dc.subject.MESHContrast Media-
dc.subject.MESHDiagnosis, Differential-
dc.subject.MESHFemale-
dc.subject.MESHHumans-
dc.subject.MESHIopamidol-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHProspective Studies-
dc.subject.MESHPulmonary Embolism/diagnostic imaging*-
dc.subject.MESHROC Curve-
dc.subject.MESHSensitivity and Specificity-
dc.subject.MESHTomography, X-Ray Computed/methods*-
dc.titleDifferent Perfusion Pattern Between Acute and Chronic Pulmonary Thromboembolism: Evaluation With Two-Phase Dual-Energy Perfusion CT Read More: http://www.ajronline.org/doi/abs/10.2214/AJR.12.8697-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Radiology (영상의학)-
dc.contributor.googleauthorYoo Jin Hong-
dc.contributor.googleauthorJa Young Kim-
dc.contributor.googleauthorKyu Ok Choe-
dc.contributor.googleauthorJin Hur-
dc.contributor.googleauthorHye-Jeong Lee-
dc.contributor.googleauthorByoung Wook Choi-
dc.contributor.googleauthorYoung Jin Kim-
dc.identifier.doi10.2214/AJR.12.8697-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA03320-
dc.contributor.localIdA00853-
dc.contributor.localIdA00727-
dc.contributor.localIdA04042-
dc.contributor.localIdA04059-
dc.contributor.localIdA04370-
dc.contributor.localIdA04422-
dc.relation.journalcodeJ00116-
dc.identifier.eissn1546-3141-
dc.identifier.pmid23521453-
dc.identifier.urlhttp://www.ajronline.org/doi/abs/10.2214/AJR.12.8697-
dc.subject.keywordacute thromboembolic disease-
dc.subject.keywordchronic thromboembolic disease-
dc.subject.keyworddual-energy CT-
dc.subject.keywordpulmonary perfusion-
dc.subject.keywordpulmonary thromboembolism-
dc.contributor.alternativeNameLee, Hye Jeong-
dc.contributor.alternativeNameChoe, Kyu Ok-
dc.contributor.alternativeNameChoi, Byoung Wook-
dc.contributor.alternativeNameHur, Jin-
dc.contributor.alternativeNameHong, Yoo Jin-
dc.contributor.alternativeNameKim, Young Jin-
dc.contributor.alternativeNameKim, Ja Young-
dc.contributor.affiliatedAuthorLee, Hye Jeong-
dc.contributor.affiliatedAuthorKim, Ja Young-
dc.contributor.affiliatedAuthorKim, Young Jin-
dc.contributor.affiliatedAuthorChoe, Kyu Ok-
dc.contributor.affiliatedAuthorChoi, Byoung Wook-
dc.contributor.affiliatedAuthorHur, Jin-
dc.contributor.affiliatedAuthorHong, Yoo Jin-
dc.rights.accessRightsnot free-
dc.citation.volume200-
dc.citation.number4-
dc.citation.startPage812-
dc.citation.endPage817-
dc.identifier.bibliographicCitationAMERICAN JOURNAL OF ROENTGENOLOGY, Vol.200(4) : 812-817, 2013-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers

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