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MRI Gains In Precision- A Big Plus For Neuroradiology

Medical MRIs generally use a magnetic field of 1.5 Tesla, but more and more establishments are equipped with 3 Tesla MRIs which allow an improvement of the image quality to visualize brain structures.

In recent years, MRI technology has greatly improved, which has allowed the introduction of magnets twice as powerful as those of the previous generation. An innovation that first benefited university hospitals, but is now spreading in many radiology centers. With regard to brain imaging, many diseases benefit from the improvement of the quality of 3 Tesla images, such as small malformations of the cortex in epilepsy, or micro-aneurysms of intracranial vessels.

Without additional risk

As a reminder, unlike the scanner, the MRI technique is not based on the use of radiation but on that of a magnetic field and radio waves. It relies on the property of the nucleus of hydrogen atoms to behave like a small magnetized top in certain conditions. Now, these atoms are present everywhere in our body: in water and in fats, in different quantities according to the tissues. When the protons are placed in a strong magnetic field- provided by the large tunnel-shaped magnet inside which the patient enters- they become magnetized.

Emitting electromagnetic waves of the same frequency excite the hydrogen nuclei and disturb the equilibrium state of the system: this is the resonance phenomenon. After each pulse, the protons restore the energy accumulated during their excitation by producing a signal, received by antennas. This signal closely depends on the water concentration of the surrounding molecules so that we can distinguish each tissue. Whatever the MRI test cost in Gurgaon, there are no contraindications or additional risk since the biological effects of a short exposure to a static magnetic field have been widely studied and no deleterious effects have been reported.

The gain of safety and comfort

MRI is often feared by patients as it can be painful to stay for almost an hour without moving in this narrow, hot, and noisy environment. They will be happy to learn that the exam time can be significantly reduced. It obviously depends on the indication, but a complete brain scan lasting 45 minutes can, for example, be reduced to 30 minutes. Regarding the tariff, it is not different from a 1.5 Tesla MRI since the TARMED grid does not differentiate magnetic field differences. Now, when a patient consults for a headache, a diagnosis with a 3 Tesla MRI will result in a much safer outcome. Especially since certain pathologies require a fast treatment at the risk of endangering the life of the patient.

Previously, patients were apprehensive about passing an MRI. The procedure took a long time, from three-quarters of an hour to one hour. Moreover, it was necessary to remain motionless in a narrow white tunnel. Few were happy at this prospect.

Fortunately, the deal was quick to change. Given the rapid growth of MRI applications, operators wanted to see the hardware and software evolve in order to improve the procedure, both in terms of speed and comfort. Recent years have seen the implementation of innovations that have accelerated the scanning speed or optimized comfort. The MRI has thus gained in efficiency and user-friendliness, for both patients and MRI scan centers in New Delhi.

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