- Health A to Z
Healthline Premium Tools
Advertisement
Marketplace
 |
There may be a faint pulse or changes in the quality of the pulse in the neck(this is called pulsus parvus et tardus).Infants and children with aortic stenosis may be extremely tired, sweaty, and have pale skin and fast breathing. They may also be...
|
|
Using a stethoscope, a physician may hear a murmur and other abnormal heart sounds. An ECG, also called an electrocardiogram, records the electrical activity of the heart.
|
 |
An electrocardiogram(ECG) is a test that records the electrical activity of the heart.
|
|
Electrocardiography is a commonly used, noninvasive procedure for recording electrical changes in the heart. The record, which is called an electrocardiogram(ECG or EKG), shows the series of waves that relate to the electrical impulses that occur ...
|
|
Detailed information on electrocardiogram, including how the EKG/ECG is performed and what happens after the procedure
|
 |
The electrocardiography unit, also called an electrocardiograph, is an apparatus that indirectly measures the heart''s electrical activity and records it as a graphic tracing.Electrocardiography is used to detect heart-function abnormalities. It in...
|
|
Did you know that electrical currents flow throughout your body? Because the strongest of these travels through your heart, doctors are able to monitor your heart by placing electrical sensors on the surface of your skin.
|
|
The ECG (also known as EKG) is a test that records electrical signals from your heart onto a paper strip. The pattern of these signals can tell the doctor whether your heart is normal, under stress, or experiencing electrical problems, strain, or damage.
|
|
The electrocardiogram(ECG) displays important information about the heart, including the occurrence of a heart attack or lack of oxygen, whether conduction of the heartbeat is disturbed, or its rate or rhythm altered. It is useful as a rapid indic...
|
|
Detailed information on an electrocardiogram (EKG) procedure, including how the procedure is performed, reasons for the procedure, and pre- and post-evaluation instructions
|
|
The Harvard Health Letter celebrates its 30th anniversary this year. In the first of a series, the Health Letter takes a look back at three decades in medicine.
|
 |
Echocardiogram is a test that uses sound waves to create a moving picture of the heart. The picture is much more detailed than x-ray image and involves no radiation exposure.Transthoracic echocardiogram(TTE); Echocardiogram- transthoracic; Doppler...
|
 |
Echocardiography is a diagnostic test that uses ultrasound waves to create an image of the heart muscle. Ultrasound waves that rebound or echo off the heart can show the size, shape, and movement of the heart''s valves and chambers as well as the f...
|
|
Detailed information on echocardiography, including types and how the procedure is performed
|
|
An echocardiogram (echo) is an imaging test. It helps your doctor evaluate your heart. Here is how it works.
|
|
Detailed information on a echocardiography (echo) procedure, including how the procedure is performed, reasons for the procedure, and pre- and post-evaluation instructions
|
|
Echocardiography is a diagnostic test that uses ultrasound waves to produce an image of the heart muscle and the heart''s valves.Echocardiography is used to diagnose certain cardiovascular diseases, and is one of the most widely used diagnostic tes...
|
|
During a physical examination, a health care provider studies a patient''s body to determine the presence or absence of physical problems.
|
 |
A chest x-ray is an x-ray of the chest, lungs, heart, large arteries, ribs, and diaphragm.Chest radiography; Serial chest x-ray; X-ray- chest.The test is performed in a hospital radiology department or in the health care provider''s office by an x-...
|
|
A chest x ray is a procedure used to evaluate organs and structures within the chest for symptoms of disease. Chest x rays include views of the lungs, heart, small portions of the gastrointestinal tract, thyroid gland and the bones of the chest ar...
|
|
Detailed information on chest x-rays, including reasons for the procedure X-rays are made by using low levels of external radiation to produce images of the body, the organs, and other internal structures for diagnostic purposes. X-rays pass through body structures onto specially treated plates (similar to camera film) and a "negative" type picture is made. The more solid a structure is, the whiter it appears on the film. For this reason, bones appear very white on an x-ray film, but less dense tissue such as muscle, blood, skin, and fat appears darker.
|
|
A chest x ray is a procedure used to evaluate organs and structures within the chest for symptoms of disease. Chest x rays include views of the lungs, heart, small portions of the gastrointestinal tract, and the bones of the chest area.
|
|
A chest x ray is a procedure used to evaluate organs and structures within the chest for symptoms of disease. Chest x rays include views of the lungs, heart, small portions of the gastrointestinal tract, thyroid gland, and the bones of the chest a...
|
|
Transesophageal echocardiography is a diagnostic test using an ultrasound device that is passed into the esophagus of the patient to create a clear image of the heart muscle and other parts of the heart. A tube with a device called a transducer is...
|
|
Detailed information on transesophageal echocardiography, also called TEE or heart scan with endoscopy, including reasons for the procedure, risks of the procedure, what to expect, and discharge instructions
|
|
Transesophageal echocardiography (TEE) is a test that allows your doctor to record images of your heart from inside your esophagus, or food pipe.
|
|
Transesophageal echocardiography(TEE) is a diagnostic test in which an endoscope with an ultrasound transducer at its tip is inserted into the patient''s esophagus by means of a catheter(thin tube). Sound waves are transmitted and received by the t...
|
 |
A magnetic resonance imaging(MRI) scan of the chest is a noninvasive imaging method that uses powerful magnets and radio waves to create detailed pictures of the chest(thoracic) area.Unlike x-rays and computed tomographic( CT) scans, which use rad...
|
|
|
Magnetic resonance imaging(MRI) is a noninvasive way to take pictures of the body.Unlike x-rays and computed tomographic( CT) scans, which use radiation, MRI uses powerful magnets and radio waves. The MRI scanner contains the magnet.
|
|
Cardiac nuclear imaging is also called a "perfusion scan.” A radioactive tracer is delivered into the bloodstream. Then a camera scans the tracer in the blood as it flows through the heart muscle.
|
|
Detailed information on magnetic resonance imaging, including how the image is performed and what happens following the procedure
|
|
New MRI machines and new techniques result in images that show prostate cancer in much greater detail, allowing biopsies to be targeted more precisely, and thus cancer staging can be more accurate as well.
|
|
Magnetic resonance imaging (MRI) is a test that lets your doctor see detailed pictures of the inside of your body. MRI combines the use of strong magnets and radio waves to form an MRI image.
|
|
When I had an MRI of my knee, I was told the test was dangerous for people who have metal devices in their bodies. Since then, I developed angina and my cardiologist put in a metal stent. If I need an MRI in the future, will I be able to get one?
|
|
Studies have found that MRI tests used in addition to mammography detected more cancers in women at high risk for breast cancer. Women at average risk would not necessarily benefit from the additional testing.
|
|
A Harvard Medical School physician answers your question about the safety of MRIs for those who have stents.
|
|
Persons with pacemakers cannot get an MRI because it conflicts with the pacemaker's function. Future pacemakers will likely be made MRI-safe, but this will probably take at least several more years.
|
|
How safe is it for a baby who is 6 months old to have an MRI?
Claire McCarthy, M.D., is a senior medical editor for Harvard Health Publications. She is an instructor in pediatrics at Harvard Medical School, an attending physician at Children's Hospital of Boston, and co-director of the pediatrics department at Martha Eliot Health Center, a neighborhood health service of Children's Hospital. The author of two books, "Learning How the Heart Beats" and "Everyone's Children", Dr. McCarthy was a regular columnist for "Sesame Street Parents Magazine" from 1995 to 1998 and is currently a contributing editor for "Parenting Magazine".
|
|
Is a regular MRI more accurate then an open MRI?
Diana Post, M.D., is an assistant professor of medicine at Harvard Medical School and a member of the Department of Medicine at Brigham and Women's Hospital.
|
|
For women at high genetic risk, adding MRI screening to mammography may improve early detection of breast cancer.
|
|
In some cases, chemical agents such as gadolinium can be injected to improve the contrast between healthy and diseased tissue.A single MRI exposure produces a two-dimensional image of a slice through the entire target area. A series of these image...
|
|
Magnetic resonance imaging(MRI) is a unique and versatile medical imaging modality. Doctors can obtain highly refined images of the body''s interior using MRI.
|
 |
Magnetic resonance imaging(MRI) scanners rely on the principles of atomic nuclear-spin resonance. Using strong magnetic fields and radio waves, MRI collects and correlates deflections caused by atoms into images.
|
 |
Magnetic resonance imaging(MRI) is one of the newest diagnostic medical imaging technologies that uses strong magnets and pulses of radio waves to manipulate the natural magnetic properties in the body to generate a visible image. In the field of ...
|
 |
Magnetic resonance imaging(MRI) is the newest, and perhaps most versatile, medical imaging technology available. Doctors can get highly refined images of the body''s interior without surgery, using MRI.
|
 |
Magnetic resonance imaging(MRI) is a diagnostic imaging procedure that uses radio waves, a magnetic field, and a computer to generate images of the anatomy.MRI is used to visualize the body to assist doctors in their efforts to diagnose certain di...
|
 |
Magnetic resonance imaging(MRI) is one of the newest, and perhaps most versatile, medical imaging technology available. Doctors can get highly refined images of the body''s interior without surgery using MRI.
|
|
People with certain kinds of pacemakers or ICDs can safely undergo an MRI, as long as a series of safety precautions is carefully followed.
|
|
Detailed information on magnetic resonance imaging (MRI), including information on how the procedure is performed
|
Home | About | Health Experts | Careers | Site Map | Feedback | Help | Health Tools | Tell a Friend
Advertise | Terms of Use | Privacy Policy
Advertise | Terms of Use | Privacy Policy
Copyright © 2005 - 2009 Healthline Networks, Inc. All rights reserved.