Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김용수 | - |
dc.date.accessioned | 2019-12-10T19:40:35Z | - |
dc.date.available | 2019-12-10T19:40:35Z | - |
dc.date.issued | 2018-12 | - |
dc.identifier.citation | KOREAN JOURNAL OF RADIOLOGY, v. 19, no. 6, page. 1119-1129 | en_US |
dc.identifier.issn | 1229-6929 | - |
dc.identifier.issn | 2005-8330 | - |
dc.identifier.uri | https://kjronline.org/DOIx.php?id=10.3348/kjr.2018.19.6.1119 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/121109 | - |
dc.description.abstract | Objective: To compare the image quality of low-tube-voltage and low-iodine-concentration-contrast-medium (LVLC) computed tomography urography (CTU) with iterative reconstruction (IR) with that of conventional CTU.Materials and Methods: This prospective, multi-institutional, randomized controlled trial was performed at 16 hospitals using CT scanners from various vendors. Patients were randomly assigned to the following groups: 1) the LVLC-CTU (80 kVp and 240 mgI/mL) with IR group and 2) the conventional CTU (120 kVp and 350 mgI/mL) with filtered-back projection group. The overall diagnostic acceptability, sharpness, and noise were assessed. Additionally, the mean attenuation, signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR), and figure of merit (FOM) in the urinary tract were evaluated.Results: The study included 299 patients (LVLC-CTU group: 150 patients; conventional CTU group: 149 patients). The LVLC-CTU group had a significantly lower effective radiation dose (5.73 +/- 4.04 vs. 8.43 +/- 4.38 mSv) compared to the conventional CTU group. LVLC-CTU showed at least standard diagnostic acceptability (score >= 3), but it was non-inferior when compared to conventional CTU. The mean attenuation value, mean SNR, CNR, and FOM in all pre-defined segments of the urinary tract were significantly higher in the LVLC-CTU group than in the conventional CTU group.Conclusion: The diagnostic acceptability and quantitative image quality of LVLC-CTU with IR are not inferior to those of conventional CTU. Additionally, LVLC-CTU with IR is beneficial because both radiation exposure and total iodine load are reduced. | en_US |
dc.description.sponsorship | This study was supported by a grant from TAEJOON PHARM Co. Ltd., South Korea (TJC-IOB-401). | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | KOREAN RADIOLOGICAL SOC | en_US |
dc.subject | Computed tomography | en_US |
dc.subject | Low dose | en_US |
dc.subject | Urography | en_US |
dc.subject | Contrast media | en_US |
dc.subject | Double dose reduction | en_US |
dc.title | Low-Tube-Voltage CT Urography Using Low-Concentration-Iodine Contrast Media and Iterative Reconstruction: A Multi-Institutional Randomized Controlled Trial. for Comparison with Conventional. CT Urography | en_US |
dc.type | Article | en_US |
dc.relation.no | 6 | - |
dc.relation.volume | 19 | - |
dc.identifier.doi | 10.3348/kjr.2018.19.6.1119 | - |
dc.relation.page | 1119-1129 | - |
dc.relation.journal | KOREAN JOURNAL OF RADIOLOGY | - |
dc.contributor.googleauthor | Kim, Sang Youn | - |
dc.contributor.googleauthor | Cho, Jeong Yeon | - |
dc.contributor.googleauthor | Lee, Joongyub | - |
dc.contributor.googleauthor | Hwang, Sung Il | - |
dc.contributor.googleauthor | Moon, Min Hoan | - |
dc.contributor.googleauthor | Lee, Eun Ju | - |
dc.contributor.googleauthor | Hong, Seong Sook | - |
dc.contributor.googleauthor | Kim, Chan Kyo | - |
dc.contributor.googleauthor | Kim, Kyeong Ah | - |
dc.contributor.googleauthor | Kim, Yongsoo | - |
dc.relation.code | 2018011607 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF MEDICINE[S] | - |
dc.sector.department | DEPARTMENT OF MEDICINE | - |
dc.identifier.pid | ysookim | - |
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