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The cardiac magnetic resonance (CMR) approach to assessing myocardial viability.
Arai AE. Arai AE. J Nucl Cardiol. 2011 Dec;18(6):1095-102. doi: 10.1007/s12350-011-9441-5. J Nucl Cardiol. 2011. PMID: 21882082 Free PMC article. Review.
When combined with a measure of area at risk like T2-weighted images, CMR can determine infarct size, area at risk, and thus estimate myocardial salvage 1-7 days after acute myocardial infarction. Thus, CMR is a well validated technique that can assess viability by gadolin …
When combined with a measure of area at risk like T2-weighted images, CMR can determine infarct size, area at risk, and thus estimate myocar …
Regadenoson and adenosine are equivalent vasodilators and are superior than dipyridamole- a study of first pass quantitative perfusion cardiovascular magnetic resonance.
Vasu S, Bandettini WP, Hsu LY, Kellman P, Leung S, Mancini C, Shanbhag SM, Wilson J, Booker OJ, Arai AE. Vasu S, et al. J Cardiovasc Magn Reson. 2013 Sep 24;15(1):85. doi: 10.1186/1532-429X-15-85. J Cardiovasc Magn Reson. 2013. PMID: 24063278 Free PMC article.
METHODS: Fifteen healthy normal volunteers, with Framingham score less than 1% underwent vasodilator stress testing with regadenoson (400 mug bolus), dipyridamole (0.56 mg/kg) and adenosine (140 mug /kg/min) on separate days. ...Similar to stress MBF, these differences in …
METHODS: Fifteen healthy normal volunteers, with Framingham score less than 1% underwent vasodilator stress testing with regadenoson …
Serious aortic complications in a patient with Turner syndrome.
Oza NM, Siegenthaler M, Horvath K, Rosing DR, Chen MY, Arai AE, Gould HN, Bakalov V, Bondy CA. Oza NM, et al. Eur J Pediatr. 2013 May;172(5):703-5. doi: 10.1007/s00431-012-1808-3. Epub 2012 Aug 26. Eur J Pediatr. 2013. PMID: 22923005 Free PMC article.
Prevalence and prognosis of unrecognized myocardial infarction determined by cardiac magnetic resonance in older adults.
Schelbert EB, Cao JJ, Sigurdsson S, Aspelund T, Kellman P, Aletras AH, Dyke CK, Thorgeirsson G, Eiriksdottir G, Launer LJ, Gudnason V, Harris TB, Arai AE. Schelbert EB, et al. JAMA. 2012 Sep 5;308(9):890-6. doi: 10.1001/2012.jama.11089. JAMA. 2012. PMID: 22948699 Free PMC article.
MAIN OUTCOME MEASURES: Prevalence and mortality of MI through September 1, 2011. Results reported with 95% confidence limits and net reclassification improvement (NRI). ...Adjusting for age, sex, diabetes, and RMI, UMI by CMR remained associated with mortality (hazard rati …
MAIN OUTCOME MEASURES: Prevalence and mortality of MI through September 1, 2011. Results reported with 95% confidence limits and net …
Myocardial edema as detected by pre-contrast T1 and T2 CMR delineates area at risk associated with acute myocardial infarction.
Ugander M, Bagi PS, Oki AJ, Chen B, Hsu LY, Aletras AH, Shah S, Greiser A, Kellman P, Arai AE. Ugander M, et al. JACC Cardiovasc Imaging. 2012 Jun;5(6):596-603. doi: 10.1016/j.jcmg.2012.01.016. JACC Cardiovasc Imaging. 2012. PMID: 22698528 Free PMC article.

RESULTS: The relaxation parameters T1 and T2 were increased in the AAR compared with remote myocardium (mean SD: T1, 1,133 55 ms vs. 915 33 ms; T2, 71 6 ms vs. 49 3 ms). On a slice-by-slice basis (n = 78 slices), AAR by T1 and T2 mapping correlated (R(2) = 0.95, p < 0.0

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RESULTS: The relaxation parameters T1 and T2 were increased in the AAR compared with remote myocardium (mean SD: T1, 1,133 55 ms vs. …