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functional mri explained | fmri

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Functional mri explained | fmri Functional MRI (fMRI) is a type of MRI scan that uses blood flow to indicate which parts of the brain are active. It works by measuring changes in the oxygen levels in blood flowing through the brain, which increase in areas where neural activity is taking place. This is done by injecting a contrast agent into the bloodstream, which makes the blood in active areas appear bright on the scan. fMRI is commonly used in research to map brain activity and can be used to diagnose brain disorders and injuries, as well as to study brain function in various cognitive and behavioral tasks.
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What is electrocardiography? how to diagnose?

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 What is electrocardiography? how to diagnose?  Electrocardiography (ECG or EKG) is a diagnostic test that records the electrical activity of the heart. The test is used to evaluate the heart's electrical activity and rhythm, and to diagnose and evaluate conditions such as heart attacks, arrhythmias, and heart disease. ECG test is performed by attaching electrodes to the skin of the chest, arms, and legs. The electrodes are connected to an ECG machine, which records the electrical activity of the heart. The test is usually done while the patient is lying down, and it takes about 5-10 minutes to complete. The ECG tracing, which is a graph of the heart's electrical activity, is analyzed by a healthcare professional. The tracing shows the electrical activity of the heart as it goes through its normal cycle of contraction and relaxation. The healthcare professional can use this information to diagnose and evaluate conditions such as: Heart attacks: A heart attack occurs when the b...
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CT or computed tomography explained

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 CT or computed tomography explained Computed Tomography (CT) is a medical imaging technique that uses X-rays and computer technology to create detailed cross-sectional images of internal organs, bones, and other tissues. CT scans are often used to diagnose diseases and injuries, and to monitor the progression of treatment. The basic concept of CT is to take a series of X-ray images from different angles around the body and then use a computer to combine them into a detailed 3D image. CT scans work by using X-ray beams to penetrate the body and create an image of the internal structures. The X-ray beam is emitted from a circular tube called an X-ray source and is directed at the body part being scanned. The X-ray beam passes through the body and is detected by an array of detectors on the opposite side. The CT scanner takes multiple X-ray images, each at a slightly different angle, while the patient is moved through the machine. The computer then combines these images to create a d...
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