MRIsignaal

MRIsignaal refers to the detected signal in Magnetic Resonance Imaging (MRI). This signal is generated by the manipulation of atomic nuclei, typically protons, within a magnetic field. When a patient is placed in a strong magnetic field, the protons in their body align. Radiofrequency pulses are then applied, which knock these protons out of alignment. As the protons realign with the magnetic field, they emit energy in the form of radio waves, which are detected by the MRI scanner's coils. The characteristics of this emitted signal, such as its intensity and decay rate, depend on the tissue type and its biophysical environment. Different tissues, like fat, water, and bone, have varying proton densities and relaxation times, leading to distinct MRIsignalen. These variations are what allow MRI to create detailed images of internal body structures. The signal is then processed by a computer to construct cross-sectional images. Factors such as the strength of the main magnetic field, the radiofrequency pulse sequence used, and the choice of imaging parameters significantly influence the strength and contrast of the MRIsignaal, thereby affecting the diagnostic quality of the resulting images.