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Abstract
Cardiac arrhythmias are common clinical cardiovascular diseases. Arrhythmias are abnormalities in the frequency, rhythm, site of origin, conduction velocity, or sequence of excitation of the cardiac impulses. Arrhythmia mechanisms include foldback, altered autonomic rhythm, and triggering mechanisms. It can cause palpitations, dizziness, black dawn, syncope, and angina pectoris and can worsen a preexisting cardiac disease, reduce the quality of life, and increase mortality. Also, by making it one of the constant challenges for the clinical cardiovascular physician, we can get more information. The study included 94 patients with atrial fibers, including 56 men and 38 women aged 57, 46, 11, and 68 years. There are 80 patients with nonatrial fibers, including 44 men and 36 women aged 56, 10, and 83 years. Those who can perform a normal coronary angiography and exclude congenital heart disease, heart valve disease, and other cardiovascular diseases. In both groups, a 256-layer spiral CT examination was performed. A pulmonary vein scanning protocol was applied to the patients with atrial fibrillation, and this can perform normal coronary angiography and exclude those with cardiovascular diseases such as congenital heart disease and valvular heart disease. The purpose of this study is to investigate the anatomical changes of the left atrium and its adjacent structures by applying the 256 nm spiral CT imaging to visualize the left atrium and its adjacent structures and by applying the MPR technology, VR technology, and simulation endoscope techniques.
Highlights
Antiarrhythmic drugs are the traditional treatment for arrhythmias, but they are less effective and have more side effects [1]
In 1986, the first application of radiofrequency energy ablation was performed in basic experiments, and the first report of radiofrequency ablation in the canine heart was published
No connection structure was found between the coronary sinus and the ventricle. e most common connection was between the coronary sinus and the atrium
Summary
Antiarrhythmic drugs are the traditional treatment for arrhythmias, but they are less effective and have more side effects [1]. In 1986, the first application of radiofrequency energy ablation was performed in basic experiments, and the first report of radiofrequency ablation in the canine heart was published. After more than 20 years of development, improvement, and clinical popularity, radiofrequency ablation has gradually become the main way of the radical treatment of cardiac arrhythmias and the first-line clinical treatment modality [4]. It can cure a variety of arrhythmias, including atrial tachycardia, atrial tachycardia, paroxysmal. E patient’s weight is routinely measured for an accurate contrast dosage, and an electrocardiogram is performed. e patient should be placed in a supine position with the scanning direction on the front of the foot. e electrodes should be placed correctly in the standard position with the ECG leads connected and the ECG signal confirmed to be received before the scan; the patient is trained to breathe to minimize the artifacts caused by the respiratory movements so that he can cooperate with the examination
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