[Causes of insufficient anticoagulation in Chinese patients with non-valvlar atrial fibrillation].

Objective: To evaluate the factors responsible for the insufficient application of oral anticoagulation (OAC) in Chinese patients with non-valvular atrial fibrillation.

Methods: The research is a single center registration study in a tertiary referral hospital in Beijing. The general characteristics, history of atrial fibrillation, comorbidities and anticoagulation treatment were obtained from all patients.

[Value of cardiac magnetic resonance imaging for the diagnosis of cardiac amyloidosis].

Objective: To observe the clinical features and cardiac magnetic resonance imaging (CMR) characteristics of patients with endomyocardial biopsy (EMB)-proven cardiac amyloidosis (CA).

Methods: EMB proven CA patients underwent CMR examination from September 2006 to December 2010 were included. The findings of clinical manifestation, electrocardiogram, echocardiography and CMR were analyzed.