What is the difference between ultrasound and MRI?

ultrasonic and magnetic resonance imaging (MRI) are two types of medical imaging that are used to look inside the body. They work in different ways and each has some significant advantages and disadvantages that need to be considered. Sometimes the doctor may apply for imaging studies using both techniques to get a more complete view of what is happening inside the patient's body. Both procedures are performed without radiation, which is a clear advantage of these types of medical imaging. In the case of a patient who needs more imaging studies, ultrasound and MRI are more advantageous because the patient's body is not endangered by damage to accumulated radiation. Techniques are also non -invasive to minimally invasive, depending on the specifics of testing. In some cases, it may be necessary to insert contrast material or insert an ultrasonic converter into the body to get a better image.

In the case of ultrasoundUku is obtained by a bouncy high -frequency sound wave from the body cavity. Sound waves are collected after their return and frequency changes and the angle are used to create an image of the patient's interior. During the MRI study, the patient is inserted into a large chamber that generates a magnetic field, agitating hydrogen atoms in the patient's body. MRI reads changes in the magnetic field of the body and uses these changes to create a picture.

One of the main disadvantages of ultrasound is that it often has problems with obstacles. Some parts of the body are difficult to display because strong bones or organs are in the way. On the other hand, MRI images are very bright and fresh alga is to take them along any plane of the body. In both cases, the image quality can be very high with a good machine and the use of a contrasting agent can even further improve visibility, allowing doctors to see specific structures in detail.

The primary problem of displaying magnetic resonance is that the MRI machine will interact with magnetic objects in placesNations and these objects can cause the machine damage. The patient must remove all magnetic objects on their person, but in the case of patients with implanted medical products, MRI could cause a problem. MRI studies are particularly dangerous for people with devices implanted into or around their hearts. If MRI is not feasible, ultrasound may need to be used.