Suspicious Region Diagnosis in the Brain

Tumors are one of the most life threatening diseases in the human body, especially in the brain area. The need for non-intrusive diagnosis methods for suspicious region diagnosis in the brain has led to important technological leaps in medical imaging techniques and particularly MRI. It is crucial that tumor diagnosis based on medical imaging is supported by guidelines to draw the full benefit from brain MRI sequences. Although MRI scanners are known to be good enough for detection and determination of tissues in the human brain, certain basic guidelines need to be well-defined to efficiently support tumor diagnosis. Brain MRI sequences are already being used for this purpose by scientists, primarily T1W1, T1C, T2W2, and Fluid-attenuated inversion recovery (FLAIR). Based on the literature, there already exist some significant works done on MRI lesion analysis in the brain that supports the accurate detection of suspicious regions. Therefore, in this research, we attempt to summarize the basics of MRI sequences and document some of the guidelines reported in the literature. We aim to present the most important approaches being used for abnormality detection in brain MRI, especially from recent years. This study will be a valuable reference for researchers dealing with suspicious region diagnosis in brain MRI.