Combined Assessment of Myocardial Perfusion and Late Gadolinium Enhancement in Patients After Percutaneous Coronary Intervention or Bypass GraftsA Multicenter Study of an Integrated Cardiovascular Magnetic Resonance Protocol
Peter Bernhardt, MD*, ,*,
Jochen Spiess, MD*,
Benny Levenson, MD ,
Günter Pilz, MD,
Berthold Höfling, MD,
Vinzenz Hombach, MD*,
Oliver Strohm, MD
* Department of Internal Medicine II, Cardiovascular MRI Unit, University of Ulm, Ulm, Germany
CMR-Center at the Hospital Agatharied, Academic Teaching Hospital of the University of Munich, Hausham, Germany
Cardiac Praxis, Catheterization Laboratory at the St.-Gertrauden-Hospital, Berlin, Germany
Stephenson Cardiovascular MR Centre, University of Calgary, Calgary, Canada
View larger version (22K):
[in this window]
[in a new window]
[Download PPT slide]
|
Figure 1 CMR Interpretation Algorithms for the Diagnosis of Coronary Artery or CABG Stenosis
Cardiac magnetic resonance (CMR) interpretation algorithms for the diagnosis of coronary artery or bypass graft stenosis. (A) Positive late enhancement consistent with prior myocardial infarction or presence of perfusion deficit during adenosine stress is interpreted as presence of coronary artery or bypass graft stenosis. (B) Perfusion deficit without corresponding late enhancement is the only condition leading to the diagnosis of coronary artery or bypass graft stenosis. CABG = coronary artery bypass graft.
|
|
View larger version (150K):
[in this window]
[in a new window]
[Download PPT slide]
|
Figure 2 Perfusion Defect and Absent LGE Perfusion Defect With LGE
Adenosine-stress perfusion (Ia) showing perfusion defect of the inferior and inferoseptal myocardial wall (arrows) in the absence of late gadolinium enhancement (LGE) (Ib). Perfusion deficit of the lateral wall (IIa, arrows) during adenosine with corresponding presence of LGE (IIb, arrows). The subendocardial low signal intensity in the left anterior descending and right coronary artery perfusion areas was not regarded as significant perfusion deficit, but as dark rim artifact.
|
|
|
