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Test-bolus injection for optimization of arterial phase imaging during contrast-enhanced hepatic MR imaging.

DC Field Value Language
dc.contributor.author유정식-
dc.date.accessioned2019-11-11T05:28:06Z-
dc.date.available2019-11-11T05:28:06Z-
dc.date.issued2000-
dc.identifier.issn0513-5796-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/171903-
dc.description.abstractContrast enhancement during the dynamic MR imaging is important for the detection and characterization of focal liver lesions. The purpose of this study was to determine whether or not a timing examination with a injection of a 1.0-mL bolus of gadopentetate dimeglumine into the antecubital vein followed by rapid dynamic scanning and measurement of signal intensity of the aorta could help to obtain proper arterial-dominant phase images for the characterization of focal hepatic lesions during subsequent multiphase dynamic MR imaging. The imaging delay to acquisition of the first gadolinium-enhanced image for multiphase dynamic MR imaging was set to equal the time to peak aortic enhancement during the test examination. The first contrast-enhanced images of 80 patients with 160 focal liver lesions (hepatocellular carcinoma, n = 79; cavernous hemangioma, n = 51; metastatic tumor, n = 30) were then retrospectively reviewed. Peak aortic enhancement occurred between 10 and 28 seconds (mean, 16.5 seconds +/- 3.1) after starting the infusion of contrast material in 80 patients during the test-examination. Depending on the findings of intrahepatic vascular enhancement on the full-scale dynamic images, hepatic arterial phase (n = 11, 14%) or sinusoid phase (n = 65, 81%) imaging was obtained during the first gadolinium-enhanced acquisition in 76 (95%) of 80 patients. Three different lesions were well characterized and easily distinguished from each other (p < .0001) on the first-phase images depending on their enhancement pattern. In the majority of patients, timing examination with test-bolus injection was helpful in obtaining qualified images for the characterization of various focal lesions.-
dc.description.statementOfResponsibilityopen-
dc.languageEnglish-
dc.publisherYonsei University-
dc.relation.isPartOfYonsei Medical Journal-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.subject.MESHAdult-
dc.subject.MESHAged-
dc.subject.MESHAged, 80 and over-
dc.subject.MESHFemale-
dc.subject.MESHHepatic Artery/pathology-
dc.subject.MESHHumans-
dc.subject.MESHImage Enhancement*-
dc.subject.MESHLiver/pathology*-
dc.subject.MESHLiver Neoplasms/diagnosis-
dc.subject.MESHLiver Neoplasms/secondary-
dc.subject.MESHMagnetic Resonance Imaging-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHTime Factors-
dc.titleTest-bolus injection for optimization of arterial phase imaging during contrast-enhanced hepatic MR imaging.-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Radiology (영상의학교실)-
dc.contributor.googleauthorJeong-Sik Yu-
dc.contributor.googleauthorKi Whang Kim-
dc.contributor.googleauthorByung-June Jo-
dc.contributor.googleauthorMi-Gyoung Jeong-
dc.contributor.googleauthorJai Keun Kim-
dc.contributor.googleauthorJin Kyeung Hahm-
dc.contributor.googleauthorJong Tae Lee-
dc.contributor.googleauthorHyung Sik Yoo-
dc.identifier.doi10.3349/ymj.2000.41.4.459-
dc.contributor.localIdA02500-
dc.relation.journalcodeJ02813-
dc.identifier.eissn1976-2437-
dc.identifier.pmid10992807-
dc.subject.keywordLiver MR-
dc.subject.keywordliver neoplasms-
dc.subject.keywordcontrast enhancement MR-
dc.contributor.alternativeNameYu, Jeong Sik-
dc.contributor.affiliatedAuthor유정식-
dc.citation.volume41-
dc.citation.number4-
dc.citation.startPage459-
dc.citation.endPage467-
dc.identifier.bibliographicCitationYonsei Medical Journal, Vol.41(4) : 459-467, 2000-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers

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