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The Role of Magnetic Resonance Imaging and Cardiac Computed Tomography in the Assessment of Left Atrial Anatomy, Size, and Function.

Kuchynka P, Podzimkova J, Masek M, Lambert L, Cerny V, Danek B, Palecek T - Biomed Res Int (2015)

Bottom Line: In the last decade, there has been increasing evidence that comprehensive evaluation of the left atrium is of utmost importance.Numerous studies have clearly demonstrated the prognostic value of left atrial volume for long-term outcome.Furthermore, advances in catheter ablation procedures used for the treatment of drug-refractory atrial fibrillation require the need for detailed knowledge of left atrial and pulmonary venous morphology as well of atrial wall characteristics.

View Article: PubMed Central - PubMed

Affiliation: Second Department of Medicine-Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic ; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic.

ABSTRACT
In the last decade, there has been increasing evidence that comprehensive evaluation of the left atrium is of utmost importance. Numerous studies have clearly demonstrated the prognostic value of left atrial volume for long-term outcome. Furthermore, advances in catheter ablation procedures used for the treatment of drug-refractory atrial fibrillation require the need for detailed knowledge of left atrial and pulmonary venous morphology as well of atrial wall characteristics. This review article discusses the role of cardiac magnetic resonance and computed tomography in assessment of left atrial size, its normal and abnormal morphology, and function. Special interest is paid to the utility of these rapidly involving noninvasive imaging methods before and after atrial fibrillation ablation.

No MeSH data available.


Related in: MedlinePlus

The examples of inversion recovery gradient echo sequencies in four-chamber view demonstrating the absence (left) and the presence of late gadolinium enhancement (right; arrows) in atrial walls.
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fig4: The examples of inversion recovery gradient echo sequencies in four-chamber view demonstrating the absence (left) and the presence of late gadolinium enhancement (right; arrows) in atrial walls.

Mentions: Extensive structural remodelling of the LA seems to play an important role in the prediction of the phenotype of AF, recurrence of arrhythmia, thromboembolic events, and mortality [9]. Left atrial remodelling can be predicted using CMR by the severity of atrial enlargement and by the extent of LGE [9, 50]. Left atrial LGE results from altered washout kinetics of gadolinium from fibrotic regions relative to normal surrounding tissue (Figure 4) [51, 52].


The Role of Magnetic Resonance Imaging and Cardiac Computed Tomography in the Assessment of Left Atrial Anatomy, Size, and Function.

Kuchynka P, Podzimkova J, Masek M, Lambert L, Cerny V, Danek B, Palecek T - Biomed Res Int (2015)

The examples of inversion recovery gradient echo sequencies in four-chamber view demonstrating the absence (left) and the presence of late gadolinium enhancement (right; arrows) in atrial walls.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4508386&req=5

fig4: The examples of inversion recovery gradient echo sequencies in four-chamber view demonstrating the absence (left) and the presence of late gadolinium enhancement (right; arrows) in atrial walls.
Mentions: Extensive structural remodelling of the LA seems to play an important role in the prediction of the phenotype of AF, recurrence of arrhythmia, thromboembolic events, and mortality [9]. Left atrial remodelling can be predicted using CMR by the severity of atrial enlargement and by the extent of LGE [9, 50]. Left atrial LGE results from altered washout kinetics of gadolinium from fibrotic regions relative to normal surrounding tissue (Figure 4) [51, 52].

Bottom Line: In the last decade, there has been increasing evidence that comprehensive evaluation of the left atrium is of utmost importance.Numerous studies have clearly demonstrated the prognostic value of left atrial volume for long-term outcome.Furthermore, advances in catheter ablation procedures used for the treatment of drug-refractory atrial fibrillation require the need for detailed knowledge of left atrial and pulmonary venous morphology as well of atrial wall characteristics.

View Article: PubMed Central - PubMed

Affiliation: Second Department of Medicine-Department of Cardiovascular Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, Czech Republic ; International Clinical Research Center, St. Anne's University Hospital in Brno, Brno, Czech Republic.

ABSTRACT
In the last decade, there has been increasing evidence that comprehensive evaluation of the left atrium is of utmost importance. Numerous studies have clearly demonstrated the prognostic value of left atrial volume for long-term outcome. Furthermore, advances in catheter ablation procedures used for the treatment of drug-refractory atrial fibrillation require the need for detailed knowledge of left atrial and pulmonary venous morphology as well of atrial wall characteristics. This review article discusses the role of cardiac magnetic resonance and computed tomography in assessment of left atrial size, its normal and abnormal morphology, and function. Special interest is paid to the utility of these rapidly involving noninvasive imaging methods before and after atrial fibrillation ablation.

No MeSH data available.


Related in: MedlinePlus