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A handsome man in cozy homewear diligently vacuums his living room.
electrical equipment
Electricians at work
Lightning in the sky of Rome
Lightning in the sky of Rome
Zero line
Medication for Epilepsy and Migraine. The medicines help to stabilize the electrical activity of the brain.
Human Brain Health with ECG
ECG graph with heart
Presentation of ECG graph
EEG electrophysiological monitoring method. EEG wave in human brain, Brain wave patterns on electroencephalogram, EEG of the child, detect problems in the electrical activity of the brain
Medical illustration of Open Heart valves operation
patient on going electrocardiography
Medical illustration of Blood flow through the heart
Medical illustration of ECG & the Electrical Activity of the Heart
EEG electrophysiological monitoring method. EEG wave in human brain, Brain wave patterns on electroencephalogram, EEG of the child, detect problems in the electrical activity of the brain. selective focus
Medical illustration of Open Heart With labeling
Medical illustration of heart attack
Medical illustration of Open Heart
Medical illustration of Anatomy of Heart Attack
Medical illustration of blood flow in human circular system
Medical illustration of Heart
Medical illustration of heart attack
Medical illustration of ECG explained
Medical illustration of heart attack caused cholesterol
Electrocardiogram hospital examination. Sheet that represents a diagnostic test, of an instrumental type, which records and graphically reports the rhythm and electrical activity of the heart
Medical illustration of Coronary Artery Disease
Medical illustration of Heart Coronary Artery Disease
Due to the large mass of the left ventricle, the dominant excitation potentials of the left and right ventricles are oriented towards the left ventricle, i.e. towards the left, Inferior and posterior.
It is best to measure the QRS wave duration in a 12 lead synchronous electrocardiogram, as some of the QRS wave start and end points are located on the isoelectric line.
Electric impulses can be conducted, but the conduction speed slows down, resulting in conduction delay and affecting the morphology of the P wave, PR interval, and QRS wave.
When there is a the first degree interatrial block, the impulse from the right atrium is slowly transmitted to the left atrium, causing widening notched P wave.
The transverse vectorcardiogram generates a chest leads electrocardiogram, with the maximum ventricular excitation potential oriented towards the left posterior region.
On the conventional 12-lead ECG, under normal circumstances, there are some inherent patterns of QRS waves in different leads, which are not exactly the same.
Under normal circumstances, in the chest lead electrocardiogram, the amplitude of the R wave gradually increases from lead V1 to lead V6.
The terminal excitation of the ventricle forms the final part of the S wave in lead V1, gradually returning to the isoelectric line, and forms a small S wave in lead V5.
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QRS wave is a ECG wave generated by ventricular excitation, typically in a three-phase waveform, named qRs wave. The QRS waveform of each lead is different.
When the first degree interatrial block occurs, the conduction time from the right atrium to the left atrium is prolonged, the P wave widens, and bimodal P wave ECG changes appear.
Medical illustration of Anatomy of Heart Attack
QRS wave is a ECG wave generated by ventricular excitation, typically in a three-phase waveform, named qRs wave. The QRS waveform of each lead is different.
The initial excitation of the ventricle forms a small r wave in lead V1 and a small q wave in lead V6.
When a 2:1 bundle branch block occurs, the refractory period of the bundle branch is longer than one basal cardiac cycle but shorter than two basal cardiac cycles.
When Bachmann bundle conduction is interrupted, the right atrium excites the left atrium through the coronary sinus, producing positive and negative biphasic P-waves in the inferior leads.
During normal ventricular excitation, the earliest epicardial breakthrough point is located in the paraventricular septal area, and the RV outflow tract and the base of the LV are finally excited.
Narrow QRS wave and wide QRS wave
The high lateral lead group includes leads I and aVL, used to explore the myocardium of the high lateralwall of the left ventricle.
When there are more than 3 components in the QRS wave of lead V1, do not diagnose it as right bundle branch block, as this is a manifestation of fragmented QRS wave.
Under normal circumstances, notch T waves are more common in leads V2-V3 and are caused by asynchronous local ventricular repolarization.
Electric impulses can be conducted, but the conduction speed slows down, resulting in conduction delay and affecting the morphology of the P wave, PR interval, and QRS wave.

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