MRI

Depends on the type of mental the screw is made of, some metals are MRI safe whilst older ones are not. Details of this will be in your medical records (the operation report) at the hospital where you had the screw put in your knee. Some people are given a piece of paper to carry after an operation where metal is placed in them detailing exactly what was used if you have one of these show it to the doctor treating your knee.

The attendant will ask about what you have in your body--piercings, hip replacements, medicine patches with metal backing--and then will tell you what you have to do. They do not want the metal to shift during the scan.

no

MRI uses high magnetic fields and radio frequency and not x-ray. The procedure is generally safe and typically repeated examinations do not cause any problems.

However, some MRI scans use a Gadolinium-based contrast agent, so repeating MRI scans within a few days may expose a patient to higher-than-expected levels of the contrast agent in the blood, which can be affected by kidney function. Patients should check with their doctor before having a repeat contrast MRI scan within a few days.

As the patient enters an MRI scanner a large magnet surrounds the patient. The scanner subjects nuclei of the body's atoms to a radio signal, temporarily knocking select ones out of alignment. When the signal stops, the nuclei return to the aligned position, releasing their own faint radio frequencies, which are sent to a computer to build up detailed images of the patient's anatomy.

An MRI machine uses radio waves and a very, very strong magnetic field to take pictures of the soft body tissues. The radio waves and magnet align the spin of protons and these allow images to be taken.

• An MRI uses electromagnets to produce an super strong magnetic field. This field causes changes in the behavior of cells and when the magnet is off those cells emit a detectable wave that is picked up by sensors. A computer then interprets those signals and creates a picture of the tissue. The picture is then looked at by specialists to find things that are not normal compared to surrounding tissue.

1

Normal is a hard thing to define. If the "normal" height for a woman is 66 inches, is a woman of 64 inches abnormal? No, she's "essentially normal." While it's not a very descriptive phrase, essentially normal means that it's within the range of normal human anatomy/physiology.

Yes, and even when MRI machines are in use, they are very safe if proper procedures are employed.

A PET scan shows what level / stage (if any) the cancer is at. An MRI scan doesn't do this, the reader, looks for abnormalities on the scan which shows up everything in the body.

Yes, it is generally safe to have an MRI (Magnetic Resonance Imaging) if you have titanium dental implants. Titanium is a non-magnetic material that is commonly used for dental implants precisely because it is compatible with medical imaging techniques like MRI.

Titanium is not affected by the magnetic field of an MRI machine, so it does not pose a risk of movement or displacement during the imaging process. However, it's always important to inform the MRI technician or radiologist about any implants or metal objects in your body before undergoing an MRI. They can provide specific instructions and ensure that appropriate precautions are taken to ensure your safety and the quality of the imaging.

In some cases, the presence of dental implants may cause artifacts on the MRI images, which can make it slightly more challenging to interpret the results. However, modern MRI machines are equipped with advanced imaging techniques that can minimize or compensate for these artifacts, allowing for a clear visualization of the area of interest.

It's worth noting that if you have any other metal implants or devices in your body, such as certain types of joint replacements or pacemakers, there may be additional considerations or precautions to take before undergoing an MRI. Therefore, it's crucial to provide a comprehensive list of any implants, devices, or metal objects to the medical staff prior to the MRI.

In summary, having titanium dental implants should not prevent you from safely undergoing an MRI. However, it's important to inform the MRI technician about your dental implants and any other metal objects in your body to ensure appropriate safety measures are taken and to obtain the most accurate imaging results.

It means nothing to worry about.

The magnetic and radio wave bursts stimulate signals from hydrogen atoms in the patient's tissues that, when subjected to computer analysis, create a cross-sectional image of internal structures and organs

No, Titanium is not magnetic so the MRI won't bother the implants. The implants don't show up very well on the scans either but they will on an x-ray. My wife had brain surgery and they used a titaniun plate to cover the hole in her head and she gets required MRI scans of her head.

There are no indications whether a picc line is safe with a MRI. I would not see any reason why not.

PET scan

MRI scans are one of the safest type of scan in modern medicine. The detailed results it gives without the danger of radiation is remarkable. There is one well known hazard however, that is that any metal in a persons body will damage the body due to the magnetic aspects of the MRI.

I've been researching a little and one white spot might be one attack of the immune system, single scelorosis. this is a possibility. it can mean so many other things. more than one spot might mean multiple sclerosis.

An MRI (magnetic resonance imaging) is a tool used to examine internal body structures. An MRI of the internal auditory meatus is an MRI scan used to look for a problem with the nerves supplying the inner ear.

Dr. Raymond Damadian, a physician and scientist, toiled for years trying to produce a machine that could noninvasively scan the body with the use of magnets. Along with some graduate students, he constructed a superconducting magnet and fashioned a coil of antenna wires. Since no one wanted to be the first one in this contraption, Damadian volunteered to be the first patient.

When he climbed in, however, nothing happened. Damadian was looking at years wasted on a failed invention, but one of his colleagues bravely suggested that he might be too big for the machine. A svelte graduate student volunteered to give it a try, and on July 3, 1977, the first MRI exam was performed on a human being. It took almost five hours to produce one image, and that original machine, named the "Indomitable," is now owned by the Smithsonian Institution.

Hope it helps xx

DD

does glass show up on xray

In order to obtain a job as an MRI tech, it is best to get an associates degree in radiologic technology. This will help you have an understanding for how the technology works. There are also certificates you can obtain that you have the ability to operate an MRI machine.