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CT angiography of the renal arteries: comparison of lower-tube-voltage CTA with moderate-concentration iodinated contrast material and conventional CTA
DC Field | Value | Language |
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dc.contributor.author | 김주희 | - |
dc.contributor.author | 안지현 | - |
dc.contributor.author | 유정식 | - |
dc.contributor.author | 정재준 | - |
dc.contributor.author | 조은석 | - |
dc.date.accessioned | 2014-12-19T16:23:49Z | - |
dc.date.available | 2014-12-19T16:23:49Z | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 0361-803X | - |
dc.identifier.uri | https://ir.ymlib.yonsei.ac.kr/handle/22282913/89447 | - |
dc.description.abstract | OBJECTIVE: The objective of our study was to investigate the feasibility of an 80-kVp protocol using a moderate-concentration contrast medium (CM) for CT angiography of the renal arteries by comparison with a conventional 120-kVp protocol using a high-concentration CM. SUBJECTS AND METHODS: Attenuation values and signal-to-noise ratios (SNRs) were determined in a phantom for the 120-kVp protocol with a high-concentration CM and the 80-kVp protocol with a moderate-concentration CM. In addition, 50 patients were prospectively enrolled in the study: 25 were scanned with 120 kVp and 200 effective mAs (mAs(eff)) after the administration of 110 mL of high-concentration CM (370 mg I/mL), and the other 25 were scanned with 80 kVp and 585 mAs(eff) after the administration of 110 mL of moderate-concentration CM (300 mg I/mL). Images of the two groups were compared in terms of arterial attenuation, SNR, contrast-to-noise ratio (CNR), and subjective degree of arterial enhancement and image quality. RESULTS: The mean attenuation of the main renal artery was significantly higher (p < 0.001) in the 80-kVp group who received moderate-concentration CM (mean ± SD, 370.0 ± 65.0 HU) than in the 120-kVp group who received high-concentration CM (269.9 ± 27.8 HU) without significant differences in SNR and CNR values. The 80-kVp protocol had significantly higher quality scores for arterial enhancement, sharpness of the artery, and overall diagnostic quality compared with the 120-kVp protocol. The effective dose of the 80-kVp protocol (4.5 mSv) was 8.2% lower than that of the 120-kVp protocol (4.9 mSv). CONCLUSION: The use of 80 kVp with moderate-concentration CM could improve arterial enhancement and provide superior image quality with a smaller amount of iodine and a lower radiation dose. | - |
dc.description.statementOfResponsibility | open | - |
dc.relation.isPartOf | AMERICAN JOURNAL OF ROENTGENOLOGY | - |
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 | Angiography/methods* | - |
dc.subject.MESH | Contrast Media | - |
dc.subject.MESH | Dose-Response Relationship | - |
dc.subject.MESH | Drug | - |
dc.subject.MESH | Feasibility Studies | - |
dc.subject.MESH | Female | - |
dc.subject.MESH | Humans | - |
dc.subject.MESH | Iodine/administration & dosage | - |
dc.subject.MESH | Male | - |
dc.subject.MESH | Phantoms | - |
dc.subject.MESH | Imaging | - |
dc.subject.MESH | Radiographic Image Enhancement/methods* | - |
dc.subject.MESH | Reference Values | - |
dc.subject.MESH | Renal Artery/diagnostic imaging* | - |
dc.subject.MESH | Tomography | - |
dc.subject.MESH | X-Ray Computed* | - |
dc.subject.MESH | Young Adult | - |
dc.title | CT angiography of the renal arteries: comparison of lower-tube-voltage CTA with moderate-concentration iodinated contrast material and conventional CTA | - |
dc.type | Article | - |
dc.contributor.college | College of Medicine (의과대학) | - |
dc.contributor.department | Dept. of Radiology (영상의학) | - |
dc.contributor.googleauthor | Eun-Suk Cho | - |
dc.contributor.googleauthor | Jeong-Sik Yu | - |
dc.contributor.googleauthor | Jhii-Hyun Ahn | - |
dc.contributor.googleauthor | Joo Hee Kim | - |
dc.contributor.googleauthor | Jae-Joon Chung | - |
dc.contributor.googleauthor | Hyeon-Kyeong Lee | - |
dc.contributor.googleauthor | Kyung Hee Lee Read More: http://www.ajronline.org/doi/abs/ . /AJR. . | - |
dc.identifier.doi | 22733899 | - |
dc.admin.author | false | - |
dc.admin.mapping | false | - |
dc.contributor.localId | A00951 | - |
dc.contributor.localId | A02266 | - |
dc.contributor.localId | A02500 | - |
dc.contributor.localId | A03712 | - |
dc.contributor.localId | A03881 | - |
dc.relation.journalcode | J00116 | - |
dc.identifier.eissn | 1546-3141 | - |
dc.identifier.pmid | 22733899 | - |
dc.identifier.url | http://www.ajronline.org/doi/abs/10.2214/AJR.11.7450 | - |
dc.subject.keyword | angiography | - |
dc.subject.keyword | contrast media | - |
dc.subject.keyword | CT angiography | - |
dc.subject.keyword | radiation | - |
dc.subject.keyword | renal artery | - |
dc.subject.keyword | renovascular hypertension | - |
dc.contributor.alternativeName | Kim, Joo Hee | - |
dc.contributor.alternativeName | Ahn, Jhii Hyun | - |
dc.contributor.alternativeName | Yu, Jeong Sik | - |
dc.contributor.alternativeName | Chung, Jae Joon | - |
dc.contributor.alternativeName | Cho, Eun Suk | - |
dc.contributor.affiliatedAuthor | Kim, Joo Hee | - |
dc.contributor.affiliatedAuthor | Ahn, Jhii Hyun | - |
dc.contributor.affiliatedAuthor | Yu, Jeong Sik | - |
dc.contributor.affiliatedAuthor | Chung, Jae Joon | - |
dc.contributor.affiliatedAuthor | Cho, Eun Suk | - |
dc.citation.volume | 199 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 96 | - |
dc.citation.endPage | 102 | - |
dc.identifier.bibliographicCitation | AMERICAN JOURNAL OF ROENTGENOLOGY, Vol.199(1) : 96-102, 2012 | - |
dc.identifier.rimsid | 31774 | - |
dc.type.rims | ART | - |
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