ABSTRACT

Background: An MRI is a type of medical imaging that employs a magnet to recreate images of bodily tissues and assist in identifying abnormal and normal tissue. When describing most MRI sequences, we refer to the shade of grey of tissues or fluid with the word intensity. On T2- weighted images, tissues with a short T2 appear dark. T2-weighted pictures show bright tissues with a long T2. A procedure called "Fluid Attenuation Inversion Recovery" makes use of extended inversion times. As a result, the generated images lose signal from the cerebrospinal fluid. Thus, brain tissue in FLAIR images resembles T2 weighted images, with the CSF appearing black rather than light and the grey matter being brighter than the white matter. Discussion/Conclusion: The review study concludes that signal strength is a critical factor in ruling out various diseases. Additionally, it was noted that the majority of experiments were conducted solely on MRI brains. This suggests that additional research might be conducted by varying the parts and sequences. Keywords: MRI, T2, FLAIR, CSF, Hypo-intense, Hyper-intense
Publication date: 01/11/2025

https://ijbpas.com/pdf/2025/November/MS_IJBPAS_2025_9580.pdf

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https://doi.org/10.31032/IJBPAS/2025/14.11.9580