Morphological Aspects of the Parietal Lobe in the Lateral Surface of the Brain: An in vivo MRI Study

Background: parietal lobe is an important area of the brain involved in a number of higher cortical functions. Anatomy descriptions differ with regard to the classical ways, making the location of the elements that compose the imprecise parietal lobule. Objective: To develop a method of location nine references in the parietal lobe, analyze the reliability of this method when using the techniques T1 and T1 IR GRE GRE and determine which technique performs better in identifying references proposals. Methods: The study included 30 healthy volunteers with a mean age of 25.3 ± 7.04 years; 16 53.3% were women and 14 46.7% were men. Methodology sought to identify the structures that comprise the parietal lobe. The reliability of the method was evaluated on technical GRE T1 and T1 IR GRE in two stages. Firstly, intra-observer analysis and inter-observer analyzes were performed using individuals as a parameter. Then, the techniques were compared with respect to hemispheres, using techniques such as a parameter. The performance of each technique was evaluated using a binomial test considering two categories of display method comprising references. Results: Both techniques have shown a satisfactory or higher level, both intra and inter-rater of most references. The T1 IR GRE technique achieved superior performance in easily classified as identifiable. Conclusions: The proposed method was reliable in identifying references located in the parietal lobe. T1 IR GRE was the technique that outperformed. *Corresponding author: Sergio Georgeto MD, Universidade Estadual de Londrina Centro de Ciencias da Saude, Brazil, Tel +55 43 991110088; E-mail: [email protected] Received April 06, 2017; Accepted April 10, 2017; Published April 15, 2017 Citation: Sergio Georgeto MD (2017) Morphological Aspects of the Parietal Lobe in the Lateral Surface of the Brain: An in vivo MRI Study. Med Rep Case Stud 2: 130. doi: 10.4172/2572-5130.1000130 Copyright: © 2017 Sergio Georgeto MD. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. al. highlighted its importance in visualising cryptogenic neocortical lesions and atrophy of the hippocampus associated with epilepsy in the temporal lobe [11]. There is an apparent difficulty in anatomical description of the lateral surface of the brain in relation to the location of the sulci and gyri which comprise the encephalic surface. This results from the difficulty in assessing the surface through imaging exams, and from the individual variability of the cortical topography. Without reference points, identifying the most relevant structures becomes difficult and confusing. Consequently, methodology adapted from descriptions by Naidich et al. and Wagner et al. was further adapted into a nine-step method for identifying nine references which comprise the parietal lobe on the lateral surface [12,13]. In this context, the objective of this is study is to propose a method to locate nine references in the parietal lobe, analyse the reliability of the techniques T1 GRE and T1 IR GRE in relation to the method, determine which technique performs better in identifying the proposed references, and discuss controversial points found in the literature regarding the topographical descriptions of this region. Subjects and Methods Sample size and participants For the sample selection, a statistical power of 80% was considered. Citation: Sergio Georgeto MD (2017) Morphological Aspects of the Parietal Lobe in the Lateral Surface of the Brain: An in vivo MRI Study. Med Rep Case Stud 2: 130. doi: 10.4172/2572-5130.1000130