Magnetic resonance imaging (MRI) or nuclear magnetic resonance (MRI) is a diagnostic technique that allows you to view the inside of the body through detailed images. The technique, which uses magnetic fields and radio waves, does not expose the patient to any type of ionizing radiation.The magnetic resonance with contrast liquid (MRI with contrast medium) involves the injection of a particular substance into a vein: it is a liquid that is distributed in the internal organs, temporarily altering their molecular properties within the magnetic field. In this way, the part of the body to be examined can be visualized highlighting the tissue and vascularity differences stand up mri near me in East Brunswick.
The functioning of magnetic resonance is based on the principles of quantum mechanics: facilitating the theory, we can correlate atomic nuclei to several tiny magnets which, in the existence of an external magnetic field, tend to arrange themselves along a preferential direction (the magnetic quantum number identifies which and how many are the possible orientations when the atom is placed in a magnetic field). If radio waves are emitted, the nuclei undergo temporary changes in position: in this transitory phase, the atoms emit signals picked up by an electronic detector and transmitted to a computer, which analyzes and processes them. Since not all atomic nuclei take the same time to return to their initial position,
resonance Open magnetic resonance is performed by means of a device in which the inside of the magnet consists of a large opening: this, in addition to allowing wider movements, allows you to have a vision of the outside and not to feel forced into a cramped space. In this way, it is much easier to carry out MRI to some categories of uncomfortable patients with the use of traditional resonance imaging (closed tunnel): overweight people, the elderly, children, subjects suffering from claustrophobia.
resonance The closed magnetic resonance (the traditional one) is, instead, performed by means of a closed magnetic resonance machine, with a tunnel-shaped structure.
resonance The functional magnetic resonance (fMRI) is a particular type of magnetic resonance used, in the neuroradiological field, to detect which brain areas are activated during the performance of a certain task (speaking, reading, thinking, making a movement). The technique allows to verify whether, in or near a brain lesion, an important functional activity persists, in order to preserve it. It is used for both clinical and research purposes.