| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Improved Detectability of Hyper-Dense Nodules Using Dual-Energy Computed Tomography Scanning: Phantom Study Using Simulated Liver Harboring Nodules |
|
言語 |
en |
| 作成者 |
Bayasgalan, Enkhjargal
Higaki, Toru
Fukumoto, Wataru
Nakamura, Yuko
Chosa, Keigo
Tatsugami, Fuminari
Awai, Kazuo
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
Copyright (c) 2018 Hiroshima University Medical Press |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
liver tumor |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
hyper-dense nodule |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
dual-energy CT |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Phantom |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
490 |
| 内容記述 |
|
|
内容記述 |
The purpose of this study was to evaluate the detectability of hyper-dense nodules using dual-energy computed tomography (DECT) in a phantom. Arterial-phase hepatic dynamic computed tomography (CT) was conducted on small, medium, and large liver-simulating phantoms harboring simulated hypervascular tumors. We acquired 150 single-energy CT (SECT) and 150 DECT scans and measured the contrast-to-noise ratio (CNR) of the nodules. Alternative free response receiver observer characteristic (AFROC) curves of five radiologists’ readings of the SECT and DECT scans were compared to assess detectability of the hyper-dense nodules. For all phantoms, the CNR of nodules measured using DECT was significantly higher than that by using SECT (p < 0.001, all). In the AFROC study, DECT showed a significantly larger area under the curve than that with SECT (0.778 vs 0.499, p = 0.012). Detectability of high-density nodules was better with DECT scans than with SECT scans. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Hiroshima University Medical Press |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
departmental bulletin paper |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.24811/hjms.67.3_63 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.24811/hjms.67.3_63 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0018-2052 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
2433-7668 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA00664312 |
| 開始ページ |
|
|
開始ページ |
63 |
| 書誌情報 |
Hiroshima Journal of Medical Sciences
Hiroshima Journal of Medical Sciences
巻 67,
号 3,
p. 63-69,
発行日 2018-09
|
| 旧ID |
46495 |
HiroshimaJMedSci_67_63.pdf (680.5 KB)
