CMR Guidance for Recanalization of Coronary Chronic Total Occlusion.

Objectives: This study explored whether cardiac magnetic resonance (CMR) could help select patients who could benefit from revascularization by identifying inducible myocardial ischemia and viability in the perfusion territory of the artery with chronic total occlusion (CTO).

Background: The benefit of revascularization using percutaneous coronary intervention (PCI) in CTO is controversial. CMR offers incomparable left ventricular (LV) systolic function assessment in addition to potent ischemic burden quantification and reliable myocardial viability analysis.

The safety and efficacy of trans-baffle puncture to enable catheter ablation of atrial tachycardias following the Mustard procedure: a single centre experience and literature review.

Background: Targets for catheter ablation of atrial tachyarrhythmias (AT) in post-Mustard procedure patients are often located in the pulmonary venous atrium (PVA). Traditional access to this chamber is retrograde via the aorta. However trans-baffle puncture may be a key determinant of successful ablation in many cases.

A multi-purpose spiral high-density mapping catheter: initial clinical experience in complex atrial arrhythmias.

Purpose: There is an increasing need for catheter ablation procedures to treat complex atrial tachycardias (AT) and atrial fibrillation (AF), often requiring detailed endocardial mapping. The sequential point-to-point contact mapping of complex arrhythmias is time-consuming and may not always be feasible. We assessed the utility of a novel spiral duo-decapolar high-density (HD) mapping catheter to delineate complex arrhythmia substrates for ablation.

Stem cell infusion into the vein of Marshall.

The vein of Marshall (VOM) and related cardiac ganglia have been clearly implicated in atrial fibrillation. Electrophysiological procedures have targeted these sites of autonomic innervation. However, targeting the exact sites has proven technically challenging.

Direct comparison of myocardial perfusion cardiovascular magnetic resonance sequences with parallel acquisition.

Purpose: To directly compare the three main myocardial perfusion cardiovascular magnetic resonance (CMR) sequences incorporating parallel acquisition methods.

Materials And Methods: In 15 subjects (12 men, 57 +/- 15.7 years) referred for diagnostic coronary angiography, we acquired first-pass perfusion images (0.

The role of cardiovascular magnetic resonance in patients presenting with chest pain, raised troponin, and unobstructed coronary arteries.

Aims: Troponin measurement is used in the assessment and risk stratification of patients presenting acutely with chest pain when the main cause of elevation is coronary artery disease. However, some patients have no coronary obstruction on angiography, leading to diagnostic uncertainty. We evaluated the incremental diagnostic value of cardiovascular magnetic resonance (CMR) in these patients.

Thiazolinediones and heart failure: the potential to precipitate irreversible cardiac dysfunction.

Thiazolinediones are increasingly prescribed to improve glycaemic control in patients with type 2 diabetes. Experimental evidence suggests that these agents may exert a beneficial effect on cardiac haemodynamics, and protect against the development and progression of heart failure. However, these agents have been reported to precipitate heart failure, and in all cases this has been reversed by discontinuation of thiazolinediones, implicating a reversible mechanism.

Cardiovascular magnetic resonance in the quantitative assessment of left ventricular mass, volumes and contractile function.

Cardiovascular magnetic resonance is a well validated, highly accurate and reproducible technique for the assessment of ventricular volumes, function and mass. State of the art cardiovascular magnetic resonance practice is capable of a ventricular assessment that includes not only systolic but also diastolic function. Thus, it provides an insight into the complex changes in ventricular morphology, physiology and function in cardiovascular disease.

Adjunctive role of cardiovascular magnetic resonance in the assessment of patients with inferior attenuation on myocardial perfusion SPECT.

Purpose: Inferior attenuation is a common problem in the interpretation of myocardial perfusion SPECT. We explored whether cardiovascular magnetic resonance (CMR) was a useful adjunct in differentiating between artifactual attenuation of the inferior wall and the presence of myocardial infarction and/or ischemia.

Methods: We used CMR to assess resting wall motion, myocardial perfusion, and the presence of infarction with late gadolinium enhancement in 30 patients with presumed inferior attenuation on ungated myocardial perfusion SPECT, but where uncertainty was present over interpretation of the inferior wall.