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Computed tomographic venography for varicose veins of the lower extremities: prospective comparison of 80-kVp and conventional 120-kVp protocols

DC FieldValueLanguage
dc.contributor.author김성준-
dc.contributor.author김주희-
dc.contributor.author유정식-
dc.contributor.author윤춘식-
dc.contributor.author정재준-
dc.contributor.author조은석-
dc.date.accessioned2014-12-19T17:04:07Z-
dc.date.available2014-12-19T17:04:07Z-
dc.date.issued2012-
dc.identifier.issn0363-8715-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/90717-
dc.description.abstractOBJECTIVE: To prospectively investigate the feasibility of an 80-kilovolt (peak) (kVp) protocol in computed tomographic venography for varicose veins of the lower extremities by comparison with conventional 120-kVp protocol. METHODS: Attenuation values and signal-to-noise ratio of iodine contrast medium (CM) were determined in a water phantom for 2 tube voltages (80 kVp and 120 kVp). Among 100 patients, 50 patients were scanned with 120 kVp and 150 effective milliampere second (mAs(eff)), and the other 50 patients were scanned with 80 kVp and 390 mAs(eff) after the administration of 1.7-mL/kg CM (370 mg of iodine per milliliter). The 2 groups were compared for venous attenuation, contrast-to-noise ratio, and subjective degree of venous enhancement, image noise, and overall diagnostic image quality. RESULTS: In the phantom, the attenuation value and signal-to-noise ratio value for iodine CM at 80 kVp were 63.8% and 33.0% higher, respectively, than those obtained at 120 kVp. The mean attenuation of the measured veins of the lower extremities was 148.3 Hounsfield units (HU) for the 80-kVp protocol and 94.8 HU for the 120-kVp protocol. Contrast-to-noise ratio was also significantly higher with the 80-kVp protocol. The overall diagnostic image quality of the 3-dimensional volume-rendered images was good with both protocols. The subjective score for venous enhancement was higher at the 80-kVp protocol. The mean volume computed tomography dose index of the 80-kVp (5.6 mGy) protocol was 23.3% lower than that of the 120-kVp (7.3 mGy) protocol. CONCLUSION: The use of the 80-kVp protocol improved overall venous attenuation, especially in perforating vein, and provided similarly high diagnostic image quality with a lower radiation dose when compared to the conventional 120-kVp protocol.-
dc.description.statementOfResponsibilityopen-
dc.relation.isPartOfJOURNAL OF COMPUTER ASSISTED TOMOGRAPHY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAdult-
dc.subject.MESHContrast Media-
dc.subject.MESHFeasibility Studies-
dc.subject.MESHHumans-
dc.subject.MESHIohexol/analogs & derivatives-
dc.subject.MESHLower Extremity/blood supply*-
dc.subject.MESHLower Extremity/diagnostic imaging*-
dc.subject.MESHMale-
dc.subject.MESHMiddle Aged-
dc.subject.MESHPeripheral Vascular Diseases/diagnostic imaging*-
dc.subject.MESHPhantoms, Imaging-
dc.subject.MESHPhlebography/methods*-
dc.subject.MESHProspective Studies-
dc.subject.MESHRadiographic Image Interpretation, Computer-Assisted-
dc.subject.MESHSignal-To-Noise Ratio-
dc.subject.MESHTomography, X-Ray Computed/methods*-
dc.titleComputed tomographic venography for varicose veins of the lower extremities: prospective comparison of 80-kVp and conventional 120-kVp protocols-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Radiology (영상의학)-
dc.contributor.googleauthorEun-Suk Cho-
dc.contributor.googleauthorJoo Hee Kim-
dc.contributor.googleauthorSungjun Kim-
dc.contributor.googleauthorJeong-Sik Yu-
dc.contributor.googleauthorJae-Joon Chung-
dc.contributor.googleauthorChoon-Sik Yoon-
dc.contributor.googleauthorHyeon-Kyeong Lee-
dc.contributor.googleauthorKyung Hee Lee-
dc.identifier.doi22992610-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA00951-
dc.contributor.localIdA00585-
dc.contributor.localIdA02500-
dc.contributor.localIdA02615-
dc.contributor.localIdA03712-
dc.contributor.localIdA03881-
dc.relation.journalcodeJ01350-
dc.identifier.eissn1532-3145-
dc.identifier.pmid22992610-
dc.identifier.urlhttp://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00004728-201209000-00014&LSLINK=80&D=ovft-
dc.subject.keywordvaricose veins-
dc.subject.keywordcomputed tomography-
dc.subject.keywordvenography-
dc.subject.keywordcontrast media-
dc.subject.keywordradiation-
dc.contributor.alternativeNameKim, Sung Jun-
dc.contributor.alternativeNameKim, Joo Hee-
dc.contributor.alternativeNameYu, Jeong Sik-
dc.contributor.alternativeNameYoon, Choon Sik-
dc.contributor.alternativeNameChung, Jae Joon-
dc.contributor.alternativeNameCho, Eun Suk-
dc.contributor.affiliatedAuthorKim, Joo Hee-
dc.contributor.affiliatedAuthorKim, Sung Jun-
dc.contributor.affiliatedAuthorYu, Jeong Sik-
dc.contributor.affiliatedAuthorYoon, Choon Sik-
dc.contributor.affiliatedAuthorChung, Jae Joon-
dc.contributor.affiliatedAuthorCho, Eun Suk-
dc.citation.volume36-
dc.citation.number5-
dc.citation.startPage583-
dc.citation.endPage590-
dc.identifier.bibliographicCitationJOURNAL OF COMPUTER ASSISTED TOMOGRAPHY, Vol.36(5) : 583-590, 2012-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers

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