scholarly journals The Effect of Age, Sex and Sport Practice on the Measurements of the Frontal Lobe of the Brain

2021 ◽  
Vol 9 (3.1) ◽  
pp. 8045-8053
Author(s):  
Rasha M. Elshinety ◽  
◽  
Ahmed Abdelkader Guneid ◽  
Shimaa Mohammed Ashour Elkhwaga ◽  
Gaber Rashad Sediek Khalil ◽  
...  
Keyword(s):  
High Resolution ◽  
Frontal Lobe ◽  
Football Players ◽  
Frontal Pole ◽  
Left Frontal Lobe ◽  
Sport Practice ◽  
High Resolution Mri ◽  
Pars Triangularis ◽  
The Right ◽  
The Brain

Background: The frontal lobes make up two-thirds of the human brain, and their functions have long remained unclear. Aim of the work: measuring cortical thickness and volume in various parts of the frontal lobe in athletic football players and non-athletes, as well as age-related changes in both sexes, using high-resolution MRI. Subjects and methods: A 40 volunteers were divided into two groups: non-football players (20 each, 10 males and 10 females) and 60 non-athletes of various ages (10-20, 20-30, and 30-40) (10 participants from each gender for each group). Results: The height, weight and BMI are increased in sport male and female groups, The medial orbitofrontal, the pars orbitalis, the superior frontal and the frontal pole in the right frontal lobe in females in the sport group, the pars orbicularis and pars triangularis in the left frontal lobe is increased significantly in the sport group, The medial orbitofrontal and pars triangularis are increased significantly in the left frontal lobe in the male group aged 10-20 years, The caudal middle frontal, the medial orbitofrontal, the paracentral, the pars triangularis, the pars orbicularis and superior frontal gyrus are increased significantly in the female aged 10-20 years in the right frontal lobe while the lateral orbitofrontal and the frontal pole increased significantly in the female aged 20-30 years and medial orbitofrontal and paracentral in female aged 10-20 years in the left frontal lobe. Conclusion: age, gender and physical exercise can affect different parameters of the frontal lobe of the brain KEY WORDS: volumetric, frontal lobe, exercise, High-resolution MRI.

scholarly journals Secondary bilateral synchrony due to fronto-mesial lesions: an invasive recording study

1999 ◽  
Vol 57 (3A) ◽  
pp. 636-642 ◽  
Author(s):  
ARTHUR CUKIERT ◽  
CASSIO FORSTER ◽  
JOSE AUGUSTO BURATINI ◽  
VIVIANE BORGES FERREIRA ◽  
GARY GRONICH
Keyword(s):  
High Resolution ◽  
Frontal Lobe ◽  
Pathological Examination ◽  
Non Invasive ◽  
Scalp Eeg ◽  
High Resolution Mri ◽  
Focus Localization ◽  
The Right ◽  
Work Up ◽  
Video Eeg

Frontal lobe epilepsies may present difficulties in focus localization in the pre-operative work-up for epilepsy surgery. This is specially true in patients with normal MRIs. We report on a 16 years-old girl that started with seizures by the age of 8 years. They were brief nocturnal episodes with automatisms such as bicycling and boxing. Seizure frequency ranged from 4-10 per night. Scalp EEG showed few right frontal convexity spiking and intense secondary bilateral syncrhony (SBS). High resolution MRI directed to the frontal lobes was normal. Ictal SPECT suggested a right fronto-lateral focus. Ictal video-EEG showed no focal onset. She was submitted to invasive recordings after subdural plates implantation. Electrodes covered all the frontal convexity and mesial surface bilaterally. Ictal recordings disclosed stereotyped seizures starting from the right mesial frontal. Using a high-resolution tool to measure intra and interhemispheric latencies, the timing and direction of seizure spread from the right fronto-mesial region were studied. Motor strip mapping was performed by means of electrical stimulation. She was submitted to a right frontal lobe resection, 1.5 cm ahead of the motor strip and has been seizure free since surgery (8 months). Pathological examination found a 4 mm area of cortical dysplasia. Invasive studies are needed to allow adequate localization in patients with non-localizatory non-invasive work-up and may lead to excellent results in relation to seizures after surgery.

scholarly journals High resolution MRI of the brain at 4.7 Tesla using fast spin echo imaging

2003 ◽  
Vol 76 (909) ◽  
pp. 631-637 ◽  
Author(s):  
E De Vita ◽  
D L Thomas ◽  
S Roberts ◽  
H G Parkes ◽  
R Turner ◽  
...  
Keyword(s):  
High Resolution ◽  
Spin Echo ◽  
Fast Spin Echo ◽  
High Resolution Mri ◽  
The Brain ◽  
Fast Spin

scholarly journals Alien Hand Sign and Other Cognitive Deficits following Ruptured Aneurysm of the Anterior Communicating Artery

1991 ◽  
Vol 4 (3) ◽  
pp. 167-179 ◽  
Author(s):  
Alan J. Parkin ◽  
Caroline Barry
Keyword(s):  
Frontal Lobe ◽  
Memory Loss ◽  
Ruptured Aneurysm ◽  
Anterior Communicating Artery ◽  
Left Frontal Lobe ◽  
Left Hand ◽  
Functional Locus ◽  
Alien Hand ◽  
And Performance ◽  
The Right

We describe a right-handed patient who suffered a ruptured aneurysm of the anterior communicating artery (ACoA) which was clipped successfully. Computerized tomography indicated a low density area in the genu of the corpus callosum and the infero-lateral aspect of the left frontal lobe. On recovery the patient's most notable deficit was the “alien hand sign” whereby the left hand would frequently interfere with the actions of the right hand. Problems in response initiation were also evident. There was significant memory loss and performance was impaired on some tests of frontal lobe function. Discussion centres on the functional locus of the alien hand sign but other aspects of the patient's deficits are also considered.

Post-Stimulation Effect of Electroacupuncture at Yintang (EX-HN3) and GV20 on cerebral functional regions in healthy volunteers: A resting functional MRI study

2012 ◽  
Vol 30 (4) ◽  
pp. 307-315 ◽  
Author(s):  
Yu Zheng ◽  
Shanshan Qu ◽  
Na Wang ◽  
Limin Liu ◽  
Guanzhong Zhang ◽  
...  
Keyword(s):  
Frontal Lobe ◽  
Temporal Lobe ◽  
Parietal Lobe ◽  
Occipital Lobe ◽  
Cingulate Gyrus ◽  
Left Frontal Lobe ◽  
Posterior Cingulate Gyrus ◽  
Functional Regions ◽  
Limbic Lobe ◽  
The Right

Objective The aim of the present work was to observe the activation/deactivation of cerebral functional regions after electroacupuncture (EA) at Yintang (EX-HN3) and GV20 by functional MRI (fMRI). Design A total of 12 healthy volunteers were stimulated by EA at Yintang and GV20 for 30 min. Resting-state fMRI scans were performed before EA, and at 5 and 15 min after needle removal. Statistical parametric mapping was used to preprocess initial data, and regional homogeneity (ReHo) and amplitude of low-frequency fluctuation (ALFF) were analysed. Results ReHo at 5 min post stimulation showed increases in the left temporal lobe and cerebellum and decreases in the left parietal lobe, occipital lobe and right precuneus. At 15 min post stimulation, ReHo showed increases in the left fusiform gyrus; lingual gyrus; middle temporal gyrus; postcentral gyrus; limbic lobe; cingulate gyrus; paracentral lobule; cerebellum, posterior lobe, declive; right cuneus and cerebellum, anterior lobe, culmen. It also showed decreases in the left frontal lobe, parietal lobe, right temporal lobe, frontal lobe, parietal lobe and right cingulate gyrus. ALFF at 5 min post stimulation showed increases in the right temporal lobe, but decreases in the right limbic lobe and posterior cingulate gyrus. At 15 min post stimulation ALFF showed increases in the left frontal lobe, parietal lobe, occipital lobe, right temporal lobe, parietal lobe, occipital lobe and cerebellum, but decreases in the left frontal lobe, anterior cingulate gyrus, right frontal lobe and posterior cingulate gyrus. Conclusions After EA stimulation at Yintang and GV20, which are associated with psychiatric disorder treatments, changes were localised in the frontal lobe, cingulate gyrus and cerebellum. Changes were higher in number and intensity at 15 min than at 5 min after needle removal, demonstrating lasting and strong after-effects of EA on cerebral functional regions.

scholarly journals Brain Abscess and Keratoacanthoma Suggestive of Hyper IgE Syndrome

2015 ◽  
Vol 2015 ◽  
pp. 1-5
Author(s):  
Soheyla Alyasin ◽  
Reza Amin ◽  
Alireza Teymoori ◽  
Hamidreza Houshmand ◽  
Gholamreza Houshmand ◽  
...  
Keyword(s):  
Immune Deficiency ◽  
Frontal Lobe ◽  
Eosinophil Count ◽  
Immunoglobulin E ◽  
Hyper Ige Syndrome ◽  
Magnetic Resonance Imaging Mri ◽  
The Right ◽  
High Level ◽  
The Brain ◽  
Left Inguinal Region

Hyper immunoglobulin-E (IgE) syndrome is an autosomal immune deficiency disease. It is characterized by an increase in IgE and eosinophil count with both T-cell and B-cell malfunction. Here, we report an 8-year-old boy whose disease started with an unusual skin manifestation. When 6 months old he developed generalized red, nontender nodules and pathologic report of the skin lesion was unremarkable (inflammatory). Then he developed a painless, cold abscess. At the age of 4 years, he developed a seronegative polyarticular arthritis. Another skin biopsy was taken which was in favor of Keratoacanthoma. Laboratory workup for immune deficiency showed high eosinophil count and high level of immunoglobulin-E, due to some diagnostic criteria (NIH sores: 41 in 9-year-olds), he was suggestive of hyper IgE syndrome. At the age of 8, the patient developed an abscess in the left inguinal region. While in hospital, the patient developed generalized tonic colonic convulsion and fever. Brain computed tomography scan revealed an abscess in the right frontal lobe. Subsequently magnetic resonance imaging (MRI) of the brain indicated expansion of the existing abscess to contralateral frontal lobe (left side). After evacuating the abscesses and administrating intravenous antibiotic, the patient’s condition improved dramatically and fever stopped.

Quantitative Comparisons of Image Registration Techniques Based on High-Resolution MRI of the Brain

1994 ◽  
Vol 18 (6) ◽  
pp. 954-962 ◽  
Author(s):  
Stephen C. Strother ◽  
Jon R. Anderson ◽  
Xiao-Liang Xu ◽  
Jeih-San Liow ◽  
David C. Bonar ◽  
...  
Keyword(s):  
High Resolution ◽  
Image Registration ◽  
High Resolution Mri ◽  
The Brain

Some cognitive effects of frontal-lobe lesions in man

1982 ◽  
Vol 298 (1089) ◽  
pp. 211-226 ◽  
Keyword(s):  
Frontal Lobe ◽  
Focal Epilepsy ◽  
Cognitive Disorders ◽  
Oculomotor Control ◽  
Frontal Eye Field ◽  
Left Frontal Lobe ◽  
Environmental Signals ◽  
Eye Field ◽  
The Subject ◽  
The Right

The study of patients undergoing unilateral frontal-lobe excisions for the relief of focal epilepsy has revealed specific cognitive disorders that appear against a background of normal functioning on many intellectual, perceptual and memory tasks. Lesions that invade the frontal eye field cause subtle impairments of voluntary oculomotor control, which reveal themselves as an inability to suppress an initial glance at a potentially distracting stimulus. After frontal lobectomy in either hemisphere, deficits are found quite consistently on motor-differentiation tasks (Konorski 1972) in which the subject must learn to produce different responses to different, randomly presented, environmental signals. More directly related to the concept of planning are those sequential tasks in which the subject is free to choose his own order of responding, but must not make the same response twice. Here the left frontal lobe plays the major role, a finding consistent with the notion of left-hemisphere dominance for the programming of voluntary actions. In contrast, the right frontal lobe appears to be more critically involved in monitoring the temporal sequence of externally ordered events, although the verbal or non-verbal nature of the stimuli remains a relevant factor.

scholarly journals Visualizing dopamine transporter integrity with iodine-123-FP-CIT SPECT in combination with high resolution MRI in the brain of the common marmoset monkey

2012 ◽  
Vol 210 (2) ◽  
pp. 195-201 ◽  
Author(s):  
Enrique Garea-Rodríguez ◽  
Christina Schlumbohm ◽  
Boldizsár Czéh ◽  
Jessica König ◽  
Gunther Helms ◽  
...  
Keyword(s):  
High Resolution ◽  
Dopamine Transporter ◽  
Common Marmoset ◽  
Marmoset Monkey ◽  
High Resolution Mri ◽  
The Common ◽  
Iodine 123 ◽  
The Brain
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