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The usefulness of delayed contrast-enhanced cardiovascular magnetic resonance imaging in differentiating cardiac tumors from thrombi in stroke patients.

Authors
 Yoo Jin Hong  ;  Jin Hur  ;  Young Jin Kim  ;  Hye-Jeong Lee  ;  Ji Eun Nam  ;  Hee Yeong Kim  ;  Kyu Ok Choe  ;  Byoung Wook Choi 
Citation
 INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING, Vol.27 : 89-95, 2011 
Journal Title
INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING
ISSN
 1569-5794 
Issue Date
2011
MeSH
Adult ; Aged ; Aged, 80 and over ; Contrast Media* ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Heart Neoplasms/complications ; Heart Neoplasms/pathology* ; Humans ; Image Enhancement/methods* ; Image Processing, Computer-Assisted ; Magnetic Resonance Imaging/methods* ; Magnetic Resonance Imaging, Cine ; Male ; Middle Aged ; Observer Variation ; Reproducibility of Results ; Retrospective Studies ; Stroke/complications* ; Thrombosis/complications ; Thrombosis/pathology*
Keywords
Delayed-enhancement cardiovascular magnetic resonance (DE-CMR) ; Cardiac tumor ; Thrombus ; Stroke
Abstract
The objectives of this study were to evaluate the diagnostic value of delayed-enhancement cardiovascular magnetic resonance (DE-CMR) imaging in differentiating cardiac tumors from thrombi in patients with suspected cardio-embolic stroke. Two radiologists blinded to the study protocol retrospectively evaluated MR images of 22 patients (12 men and 10 women; mean age 59.2 years) that had recently experienced a stroke and undergone CMR. Six cardiac tumors and 16 thrombi were confirmed on surgery or follow-up examinations. On DE-CMR, a tumor was defined as an intracardiac mass showing post-contrast enhancement, and a thrombus was defined as an intracardiac mass showing black signal intensity (SI) without post-contrast enhancement. The mean SI in regions of interest in the normal myocardium and cardiac mass were measured using cine-CMR and DE-CMR. Visual assessment of enhancement characteristics of cardiac masses on DE-CMR could accurately differentiate cardiac tumors from thrombi in all cases. On cine-CMR, the mean SI ratios for tumors and thrombi were 1.45 ± 0.45 (range, 1.12-2.16) and 1.39 ± 0.33 (range, 0.87-2.09), respectively (P = 0.745). On DE-CMR, the mean SI ratios for tumors and thrombi were 5.65 ± 2.96 (range, 2.98-9.92) and 1.06 ± 0.43 (range, 0.67-1.95), respectively (P < 0.001). DE-CMR is a non-invasive modality for detecting intra-cardiac mass can differentiate tumors from thrombi in cardio-embolic stroke patients.
Full Text
http://link.springer.com/article/10.1007%2Fs10554-011-9961-8
DOI
10.1007/s10554-011-9961-8
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Young Jin(김영진) ORCID logo https://orcid.org/0000-0002-6235-6550
Kim, Hee Yeong(김희영)
Nam, Ji Eun(남지은)
Lee, Hye Jeong(이혜정) ORCID logo https://orcid.org/0000-0003-4349-9174
Choe, Kyu Ok(최규옥)
Choi, Byoung Wook(최병욱) ORCID logo https://orcid.org/0000-0002-8873-5444
Hur, Jin(허진) ORCID logo https://orcid.org/0000-0002-8651-6571
Hong, Yoo Jin(홍유진) ORCID logo https://orcid.org/0000-0002-7276-0944
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/94843
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