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What is Cardiac Magnetic Resonance Imaging?

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Cardiac magnetic resonance imaging (CMR), also known as cardiac MRI, is a non-invasive diagnostic imaging technique that provides detailed information about the structure and function of the heart. It utilizes a powerful magnetic field and radio waves to create high-resolution images of the heart, allowing healthcare professionals to evaluate cardiac anatomy, assess myocardial function, and detect various cardiovascular conditions. CMR works by aligning the hydrogen atoms in the body's tissues using a strong magnetic field. When radio waves are applied, the hydrogen atoms emit signals that are captured by specialized detectors, enabling the creation of detailed images. By manipulating different imaging parameters, such as magnetic field strength and timing, CMR can provide a wealth of information about the heart's structure and function. One of the main applications of CMR is the assessment of myocardial function. It can accurately measure the heart's pumping capacity...

(Dr Ramji Mehrotra) What are Inherited Cardiac Conditions?

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Inherited cardiac conditions are a group of cardiovascular disorders that are caused by genetic mutations or abnormalities passed down from parents to their children. These conditions can affect the structure or function of the heart and may occur at various stages of life, from infancy to adulthood. Understanding the nature of inherited cardiac conditions is crucial for early detection, proper management, and preventive measures. One prominent example of an inherited cardiac condition is hypertrophic cardiomyopathy (HCM) . HCM is characterized by the thickening of the heart muscle, particularly in the left ventricle. This abnormal thickening can disrupt the heart's pumping ability and lead to symptoms such as chest pain, shortness of breath, and palpitations. In some cases, HCM can cause sudden cardiac arrest, especially during intense physical activity. According to Dr. Ramji Mehrotra , leading cardiac surgeon in NCR region , genetic mutations in genes responsible for the str...

Coarctation of the Aorta (CoA)

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  Coarctation of the aorta (CoA) is a congenital heart defect that affects the aorta, the main artery that carries blood from the heart to the body. It occurs when a part of the aorta is narrowed or constricted, which can cause decreased blood flow to the body and increased pressure in the heart. CoA can range from mild to severe and can be detected at birth or later in life. Causes of CoA According to Dr Ramji Mehrotra , who is one of the best cardiac surgeons in India, the exact cause of CoA is unknown, but it is thought to be caused by abnormal development of the aorta during foetal development. It can also be associated with other congenital heart defects or genetic disorders, such as Turner syndrome. Symptoms Symptoms of CoA can vary depending on the severity of the narrowing and the age at which it is detected. Infants with severe CoA may present with symptoms such as difficulty breathing, poor feeding, or a weak pulse in the legs. Older children and adults may expe...

Dr Ramji Mehrotra | Why do you need a stent in your heart?

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A stent is a tiny, expandable metal mesh tube that is used to prop open narrow or blocked arteries in the heart. Stents are commonly used in the treatment of coronary artery disease, a condition in which the arteries that supply blood to the heart become narrowed or blocked due to the build-up of plaque. When plaque builds up inside the arteries, it can restrict blood flow to the heart, leading to chest pain or other symptoms. In some cases, the blockage can be so severe that it can cause a heart attack. A stent can be used to help restore blood flow and prevent these complications. During a stenting procedure, a small incision is made in the groin or arm, and a thin, flexible tube called a catheter is inserted into the artery. The catheter is then guided to the blocked artery in the heart using imaging technology. Once the catheter reaches the blockage, a small balloon is inflated to widen the artery and improve blood flow. The stent is then placed over the balloon and expanded,...