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J Am Coll Cardiol, 2007; 49:1178-1185, doi:10.1016/j.jacc.2006.12.032 (Published online 5 March 2007).
© 2007 by the American College of Cardiology Foundation
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Acute Myocardial Infarction Early Viability Assessment by 64-Slice Computed Tomography Immediately After Coronary Angiography

Comparison With Low-Dose Dobutamine Echocardiography

Michel Habis, MD*,*, André Capderou, MD, PhD{dagger}, Saïd Ghostine, MD*, Béatrice Daoud, MD{ddagger}, Christophe Caussin, MD*, Jean-Yves Riou, MD{ddagger}, Philippe Brenot, MD{ddagger}, Claude Yves Angel, MD{ddagger}, Bernard Lancelin, MD* and Jean-François Paul, MD{ddagger}

* Department of Cardiology, Centre Chirurgical Marie Lannelongue, Le Plessis Robinson, France
{dagger} Department of Physiology, Centre Chirurgical Marie Lannelongue, Le Plessis Robinson, France
{ddagger} Department of Radiology, Centre Chirurgical Marie Lannelongue, Le Plessis Robinson, France.


Figure 1
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  		Figure 1 64-Slice CT Scan 51 Min After a Primary Angioplasty for an AMI of a 59-Year-Old Patient

Parasternal long-axis view (8-mm slice thickness) shows subendocardial hyperenhancement of the posterior wall (segments 4 and 10) (arrows). Low-dose dobutamine echocardiography confirmed myocardial viability of these segments. AMI = acute myocardial infarction; Ao = aorta; CT = computed tomography; LA = left atrium; LV = left ventricle.

 

Figure 2
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  		Figure 2 64-Slice Computed Tomography Scan 15 Min After Facilitated Angioplasty of a Right Coronary Artery

The apical 2 chambers (A) and parasternal short-axis (B) views show subendocardial hyperenhancement of the inferior wall of the left ventricle (LV) (arrows) and the papillary muscle (arrowheads). (C) Mitral regurgitation was diagnosed at echocardiography consistent with ischemic involvement of the papillary muscle. Myocardial viability was present at low-dose dobutamine echocardiography. LA = left atrium; RV = right ventricle.

 

Figure 3
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  		Figure 3 64-Slice CT Scan 21 Min After Left Anterior Descending Coronary Artery Reperfusion

(A) Parasternal short-axis view shows transmural hyperenhancement of segments 7, 8, 11, and 12 (arrows). (B) Apical 4-chamber view shows transmural hyperenhancement of segments 6, 12, 13, and 15 (arrows). This patient was confirmed having no viability at low-dose dobutamine echocardiography in all the involved segments. CT = computed tomography; LA = left atrium; LV = left ventricle; RA = right atrium; RV = right ventricle.

 




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