Category Archive : Uncategorized

Where Was The MRI Scan Invented

We all have heard of the MRI scan, but most of the people don’t know anything about it. Magnetic Resonance Imaging (MRI) is a technique used by the doctors to look inside a body. In this method, radio waves and magnetism is used to get the clear picture of the human anatomy. The work on this new technique began in 1946. This was used for physical and chemical analysis. Raymond Damadian worked on the idea to use nuclear magnetic to study disease. In 1973, computed tomography was invented by Hounsfield. In 1977, Mansfield introduced the echo planar imaging. Since then, plenty of scientists have worked for the development of MRI as we know it today.

Let’s take a look at the history of MRI.

History of The MRI

The concept of MRI is based on the phenomenon nuclear magnetic resonance (NMR). This was discovered in the 1930s in which the radio waves and magnetic fields lead the atoms to provide radio signals.

The NMR was discovered by 2 geniuses, Felix Bloch and Edward Purcell. This method was used to study the structure of chemical compounds.

The discovery of the MRI was by Paul C Lauterbur and Peter Mansfield. Lauterbur worked on the new technique of imaging and gave the term zeugmatography. He was the one responsible for taking the world from single dimension of NMR to the second dimension of 3-D orientation.

Moreover, Mansfield worked on the development of gradients in the field of the magnet. He worked on analyzing the signals mathematically that helped in creating an imaging technique. Peter also proved that you can get the imaging quickly.

The Contribution of Raymond Damadian

Raymond Damadian a research scientist and the medical doctor found that MRI can be used for diagnosing. He discovered that the various animals tissue release response signal that differs in length. While the cancerous tissues produce the signals that can last for longer periods of time instead of non-cancerous tissue. Soon, he filed for a patent for his idea of using the MRI as a technique for medical diagnosis.

It was in 1977/1978 when Raymond invented the first MRI scanner by hand along with Michael Goldsmith and Larry Minkoff. This was at the New York’s Downstate Medical Center and di the first scan of the healthy human body. In 1978, the MRI scan was done on a cancer patient. Furthermore, the Mansfield improved the mathematics and created an echo-planar technique. This method enabled quick images to be produced and became the basis for fast MRI.

Therefore, the use of medical MRI has been developing rapidly. The use of MRI has increased all over the world and is believed to keep increasing as it has great importance in the medical diagnosis. The Tesla Unit is used for denoting the strength of the magnetic field of MRI. The stronger the magnetic field, the better and clear the image will be. The name of Tesla has been linked with MRI technology that is widely known around the world.

When Should You Have an MRI for Back Pain? Risks and Benefits Analysis

MRI is a powerful tool, which has proven to be extremely advantageous in medical science. It is an open question for all of us that what is the right time for anyone to undergo an MRI for back pain? In most cases, the better option is to go later, rather than sooner.

In most of the cases, when an MRI scan is done, it usually shows those abnormalities in the back that have nothing to do with the basic cause of the pain. Usually, with age, our spine starts showing the signs of regular wear and tear such as disk degeneration and arthritis of joints. Hence, any pain condition which goes by its self in less than two months usually does not require a dramatic intervention or procedure such as MRI.

According to physicians at the New York University Hospital for Joint Diseases, if you do MRI scans for middle-aged patients who have no back issue, even then one-third of them are going to have abnormal MRIs.

The use of MRI is on the rise because it does not expose the body to radiation, whereas CT scans and X-ray do. Thus, it is considered a safe method to be used for females who are of childbearing age and have back pain issues.

Most physicians are of the view that MRI scans are a slippery path to surgical rooms. According to a physical medicine and rehabilitation specialist, it is a well-known fact that soon after MRIs became famous among doctors for diagnosing the back problems, there were a lot of ‘’normal’’ abnormals. This abnormal MRIs of the normal backs give the doctors something to operate on. Thus, thus they are making money using this drawback to their advantage.

The easiest solution for a new patient with back pain is to inculcate regular exercise in their lifestyle, take over-the-counter painkillers and give time to the pain to go away. If the pain does not go away for two consecutive months and by instilling all the required changes in the lifestyle, then, of course, a serious action plan is needed. There is absolutely no need to go for an MRI scan on the very first visit. Most back pain problems go away with basic treatment within four to six weeks.

However, there are many other problems that do not resolve and thus need immediate attention and proper treatment and care. One of the conditions is sciatica nerve or spinal stenosis.

The important thing to consider for all physicians and patients is that it is important to treat the patient as a whole rather than looking at the MRI and other test results. It is crucial that physicians and medical health professionals must have an eye on the causes of the pain and lifestyle of the patient. They should try to make the patients aware of the unhealthy lifestyles that can damage their back. Moreover, they should also try to teach them healthy activities that will certainly have a positive effect on their back issues and general health status.

 

 

Short Guide to MRI Scan Safety 101

A growing number of people have concerns about the possible threats and risks of a typical MRI Scan. To answer all Frequently Asked Questions, This article will serve as your one-stop guide regarding necessary information about the MRI scans and the possible risks that are associated with the whole process.

You have recently suffered an injury and are considering going through an MRI but you have doubts about the process. Furthermore, you are not sure about how it works and whether it is safe for you or not.

Let’s have a look at the basics of an MRI Scan:

The Basics of MRI Scanning

Before we jump into details, let us first see why it used in the first place. An MRI scan is used to detect oddity in our internal systems caused as a result of injuries or various diseases. The scanning is done using a magnetic field and radio forces are applied that generate detailed images of our internal system. During the scanning process, the patient is asked to lie straight in a magnetic tube. The person can consistently keep in contact with the radiographer via the intercom. The testing only starts after the patient is ready.

The scanning is done using powerful magnetic fields and radio frequency pulses to produce detailed pictures of organs, soft tissues, bone and other internal body structures. This method does not use X-ray radiation to carry out the scanning.

Who is at Risk?

  • Contrary to popular belief, the chance of getting allergic symptoms is quite rare due to the dye used during the scan.
  • In case of pregnancy, it is advised to avoid the MRI unless deemed urgent. The effects that it may have on the growth of a fetus are not yet established
  • The MRI scanner uses an extremely strong magnet, so people with certain types of the medical implant cannot be scanned. Due to the presence of the magnet, the original position of the medical devices may get displaced. It is recommended to inform the physician and staff beforehand.
  • In addition to that, metallic bone plates, prosthetic device, metal chips can affect the quality of images.
  • People who have recently gone through a heart surgery and have a pacemaker or artificial heart valves attached to them are not advised to consider an MRI.
  • MRI scanning is also not an option for cancer patient who has undergone chemotherapy
  • A mild sedative is given in some cases to numb the pain to people who have a history of claustrophobia.

 

Conclusion

The fact is you cannot expect from FDA to anticipate every risk that comes with a lot of procedures. Overall, MRI is a harmless and secure process. However, the patient is advised to give complete medical history to their doctor in order to avoid any future inconveniences.

All in all, it is safe to say that there are no after effects from the scan or any possibility of your kidney, liver or heart damage. After the scan procedure is over, the patient can return to the daily activities immediately.

 

 

Key Facts of Magnetic Resonance Imaging

The MRI- Magnetic Resonance Imaging– has been widely used in the common medical practice. The procedure involves the use of a stiff magnetic field and radio waves that create detailed images of our tissues and organs. The scanning is a painless and secure process. It is used to examine the bones structure, chests, womb, blood vessel system, joints, liver, kidney and spinal cord to determine the causes of any severe ailment. Before going for an MRI Scan, make sure to get the required information from the doctors and get necessary suggestions.

The Modus Operandi of MRI Scan

Before we go into details, it is important to learn the process that surrounds an MRI scan:

The machine in which the body is scanned is similar to a tunnel that is about 1.5 m in length it is surrounded by a round magnet. The patient has to lie straight on the platform, which slowly goes inside the machine. After that, an aerial device rotates in a clockwise direction to examine the body.

The scanning is monitored through a TV screen and the patient can communicate to the radiographer through an intercom connected to the device. It is used for the detection of radio signals from the body.

Here’s how the method underges:

The tiny bursts of radio waves are sent to the human body form the scanning machine. These waves initiate the help in the disposition of protons in our body. When the radio bursts end, the protons are sent back to their origin and this particle then begins emitting radio signals.

These protons that are located in various tissues emerge at changing speeds. That’s why the tissues emit different signals during multiple times. At the end, the signals are detected by the device in the scanner which is later transmitted to the computer for image processing.

When to Consider MRI Scan

For several situations you can consider getting an MRI, a list of possible circumstances is given below.

  • Many people who are suffering from chronic pain need to get an MRI in order to establish a possible root cause.
  • Similarly, an MRI scan is used to analyze the abnormalities in the brain.
  • The possible presence of a tumor in the spine or to determine a disc location.
  • In case of any sports injury in the joints.
  • To find the cause of infertility in women.
  • For various types of heart issues, liver and kidney pain.
  • To determine pelvic pain in women such as endometriosis.
  • To treat the problem in urination.

 

Conclusion

This is a fact that the advancement of MRI scan has revolutionized and altered the field of medicine to a greater extent. The continuous research by the doctors and physicians has also contributed to refining the MRI technology for an easy use. However, there is still some research required to make it useful for people who have metallic implants in their body.

Going through Chronic Back Pain? Get an MRI Right Now!

MRI is regarded as the topmost imaging scanner that aids in the detection of any spinal injury that causes back pain. This is an essential practice before surgery to look for detailed information and learning of the root causes of a chronic backache. Some of them include dispositioning of discs, the presence of a tumor, and lumbar disc herniation.

An Ogle for Your Spinal Problems

For many years MRI scan has been preferred to detect cord compression and tumors in the spine. It is important to note that it is sensitive to some changes in the bones and cartilage. The chronic pain might not have been caused due to one single occurrence. A number of factors are responsible; for example, age, types of daily movements and a person’s physique.

Causes of Backache

  • Although there are several conditions that can lead to an agonizing backache, however, patients with arthritis can expect a painful situation. Not only this, lumbar disc herniation causes back pain by pinching the nerve roots.
  • Piriformis syndrome and Scoliosis (that cause the curvature of the spine) also contribute to back pain.
  • You might have been lifting too much weight during one of your gym sessions and in the totally wrong way. In that case, one simple movement can lead to a severe backache that becomes a nightmare for you!
  • Further, if you are a sportsman who goes through intense practice sessions every day and you have a medical history of injuries or fracture. A minor injury can lead to a backache that often results in surgery.
  • Sometimes, the work you do also involves the lifting and using of heavy objects from one place to another. In addition to that, if you work at heights and job involves bending, twisting or lifting heavy objects or sitting for longer periods of time, then a back pain might be inevitable.
  • Lastly, people who are overweight or in their mid-thirties, pregnant women, stressed are more likely to suffer more from back pain.

If you have gone through any of the above situations then it is suggested to get an MRI Scan as soon as you can.

Benefits of MRI Scan

  • Most of the time, it can easily detect any infection in the spine.
  • It helps in the analysis of post backache surgery because it helps in isolation from scar tissue from recurrent disc herniation.
  • It further assists in the prevention of injecting a steroid into the infected area.

 

Conclusion

If you are one of the many people who is experiencing decreased back movement or stiffness. Or in worst cases, if you can’t stand straight, then head straight to the nearby clinic and get MRI done from a practiced physician. The procedure is quite simple, the doctor will first analyze the medical history and then the patient might go some physical tests like testing nerve functions and muscle strength. However, if a possible disc problem is suspected, it is recommended to go for an immediate MRI Scan.