0 138

Cited 2 times in

Feasibility of Single Scan for Simultaneous Evaluation of Regional Krypton and Iodine Concentrations with Dual-Energy CT: An Experimental Study

Authors
 Sae Rom Hong  ;  Suyon Chang  ;  Dong Jin Im  ;  Young Joo Suh  ;  Yoo Jin Hong  ;  Jin Hur  ;  Young Jin Kim  ;  Byoung Wook Choi  ;  Hye-Jeong Lee 
Citation
 Radiology, Vol.281(2) : 597-605, 2016 
Journal Title
 Radiology 
ISSN
 0033-8419 
Issue Date
2016
Abstract
Purpose To evaluate the feasibility of a simultaneous single scan of regional krypton and iodine concentrations by using dual-energy computed tomography (CT). Materials and Methods The study was approved by the institutional animal experimental committee. An airway obstruction model was first made in 10 beagle dogs, and a pulmonary arterial occlusion was induced in each animal after 1 week. For each model, three sessions of dual-energy CT (80% krypton ventilation [krypton CT], 80% krypton ventilation with iodine enhancement [mixed-contrast agent CT], and iodine enhancement [iodine CT]) were performed. Krypton maps were made from krypton and mixed-contrast agent CT, and iodine maps were made from iodine and mixed-contrast agent CT. Observers measured overlay Hounsfield units of the diseased and contralateral segments on each map. Values were compared by using the Wilcoxon signed-rank test. Results In krypton maps of airway obstruction, overlay Hounsfield units of diseased segments were significantly decreased compared with those of contralateral segments in both krypton and mixed-contrast agent CT (P = .005 for both). However, the values of mixed-contrast agent CT were significantly higher than those of krypton CT for both segments (P = .005 and .007, respectively). In iodine maps of pulmonary arterial occlusion, values were significantly lower in diseased segments than in contralateral segments for both iodine and mixed-contrast agent CT (P = .005 for both), without significant difference between iodine and mixed-contrast agent CT for both segments (P = .126 and .307, respectively). Conclusion Although some limitations may exist, it might be feasible to analyze regional krypton and iodine concentrations simultaneously by using dual-energy CT.
Full Text
http://pubs.rsna.org/doi/abs/10.1148/radiol.16152429
DOI
10.1148/radiol.16152429
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
김영진(Kim, Young Jin) ORCID logo https://orcid.org/0000-0002-6235-6550
서영주(Suh, Young Joo) ORCID logo https://orcid.org/0000-0002-2078-5832
이혜정(Lee, Hye Jeong) ORCID logo https://orcid.org/0000-0003-4349-9174
임동진(Im, Dong Jin) ORCID logo https://orcid.org/0000-0001-8139-5646
장수연(Chang, Su Yon)
최병욱(Choi, Byoung Wook) ORCID logo https://orcid.org/0000-0002-8873-5444
허진(Hur, Jin) ORCID logo https://orcid.org/0000-0002-8651-6571
홍유진(Hong, Yoo Jin) ORCID logo https://orcid.org/0000-0002-7276-0944
Export
RIS (EndNote)
XLS (Excel)
XML
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152854
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse