questionsmedicales.fr
Système nerveux
Système nerveux central
Encéphale
Prosencéphale
Télencéphale
Cerveau
Cortex cérébral
Cortex sensorimoteur
Cortex visuel
Cortex visuel : Questions médicales fréquentes
Termes MeSH sélectionnés :
Diagnostic
5
Lésion cérébrale
Imagerie par résonance magnétique
Acuité visuelle
Champ visuel
Agnosie
Troubles de la perception
Électroencéphalogramme
Troubles visuels
Vision des couleurs
Test de Ishihara
Symptômes
5
Hallucinations visuelles
Troubles de la vision
Agnosie visuelle
Reconnaissance des objets
Simultagnosie
Perception des mouvements
Migraine oculaire
Troubles visuels
Prévention
5
Traumatismes crâniens
Maladies vasculaires
Examens ophtalmologiques
Troubles visuels
Migraine
Gestion du stress
Santé oculaire
Lunettes de soleil
Traitements
5
Rééducation visuelle
Thérapie occupationnelle
Agnosie
Thérapie cognitive
Rééducation visuelle
Perception visuelle
Hémianopsie
Exercices de champ visuel
Complications
5
Lésion cérébrale
Troubles cognitifs
Hémianopsie
Vie quotidienne
Agnosie
Interactions sociales
Migraine
Troubles de l'humeur
Troubles visuels
Éducation
Facteurs de risque
5
Traumatismes crâniens
AVC
Vieillissement
Dégénérescence
Antécédents familiaux
Troubles neurologiques
Diabète
Rétinopathie diabétique
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"name": "Quelles complications peuvent survenir après une lésion du cortex visuel ?",
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"position": 23,
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"position": 25,
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"position": 26,
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"text": "Les traumatismes crâniens, les AVC et les maladies neurodégénératives augmentent le risque."
}
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Expert en Médecine, Optimisation des Parcours de Soins et Révision Médicale
Validation scientifique effectuée le 21/04/2025
Contenu vérifié selon les dernières recommandations médicales
5 publications dans cette catégorie
Affiliations :
Department of Neuroscience, Baylor College of Medicine, Houston, Texas 77030, USA; email: astolias@bcm.edu.
Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, Texas 77030, USA.
Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77005, USA.
Publications dans "Cortex visuel" :
3 publications dans cette catégorie
Affiliations :
Department of Neuroscience, Baylor College of Medicine, Houston, Texas 77030, USA; email: astolias@bcm.edu.
Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, Texas 77030, USA.
Publications dans "Cortex visuel" :
3 publications dans cette catégorie
Affiliations :
Department of Neuroscience, Baylor College of Medicine, Houston, Texas 77030, USA; email: astolias@bcm.edu.
Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, Texas 77030, USA.
Publications dans "Cortex visuel" :
3 publications dans cette catégorie
Affiliations :
Institute of Neuroscience, National Research Council (CNR), I-56124 Pisa, Italy; Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, I-56128 Pisa, Italy. Electronic address: baroncelli@in.cnr.it.
Publications dans "Cortex visuel" :
3 publications dans cette catégorie
Affiliations :
Institute for Computer Science, University Göttingen, Göttingen, Germany.
Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Department of Neurology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.
Jamaica Plain VA Medical Center, Boston, Massachusetts 02130, USA.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
National Vision Research Institute, Melbourne, VIC, Australia.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Laboratory for Experimental Ophthalmology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Department of Psychology, Stanford University, Stanford, California 94305.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Department of Psychology, Yale University, New Haven, Connecticut 06520.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Laboratoire des systèmes perceptifs, Département d'études cognitives, École normale supérieure, PSL University, CNRS, 75005 Paris, France.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Interdisciplinary Scientist Training Program, University of Chicago Pritzker School of Medicine, Chicago, IL, United States of America.
Committee on Computational Neuroscience, University of Chicago, Chicago, IL, United States of America.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Committee on Computational Neuroscience, University of Chicago, Chicago, IL, United States of America.
Department of Neurobiology, University of Chicago, Chicago, IL, United States of America.
Neuroscience Institute, University of Chicago, Chicago, IL, United States of America.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Committee on Computational Neuroscience, University of Chicago, Chicago, IL, United States of America.
Department of Neurobiology, University of Chicago, Chicago, IL, United States of America.
Neuroscience Institute, University of Chicago, Chicago, IL, United States of America.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Neuroscience Institute, National Research Council (CNR), I-56124 Pisa, Italy.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Neuroscience Institute, National Research Council (CNR), I-56124 Pisa, Italy.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, TX, USA. eywalker@bcm.edu.
Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA. eywalker@bcm.edu.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, USA.
Department of Neuroscience, Baylor College of Medicine, Houston, USA.
Publications dans "Cortex visuel" :
2 publications dans cette catégorie
Affiliations :
Center for Neuroscience and Artificial Intelligence, Baylor College of Medicine, Houston, USA.
Department of Neuroscience, Baylor College of Medicine, Houston, USA.
Publications dans "Cortex visuel" :
Chylopericardium is a clinical condition due to the accumulation of triglyceride-rich chylous fluid within the pericardial space. It may be primary (idiopathic), without any apparent cause or secondar...
Phlebolymphoedema is caused by the interaction of the venous and lymphatic systems in a state of chronic venous insufficiency in which increased microvascular filtration causes an increased rate of ly...
Patients referred for lymphoscintigraphic investigation of swollen legs between April 2021 and December 2022 were reviewed. Quantitative lymphoscintigraphy was performed following the technique of Ker...
A total of 39 patients were reviewed (78 limbs, 29F, 10M). Seven limbs were identified with supranormal lymphatic function (IIQ > 30%) plus three borderline. Of these 10 limbs, all had at least two sc...
Quantitative lymphoscintigraphy, although developed for diagnosing abnormally low lymphatic function, may also have utility at the upper end of the spectrum for identifying chronic venous insufficienc...
Many groups have reported lymphatic and glymphatic structures in animal and human brains, but tracer injection into the human brain to demonstrate real-time lymphatic drainage and mapping has not been...
Lymphoscintigraphy is the criterion-standard method for diagnosing lymphedema, and there is no universally standardized imaging modality. In our center, we use a new approach: rest/stress intradermal ...
We tested 231 consecutive patients with suspected lymphedema. All patients were studied after a complex physical therapy program to reduce edema. Two doses of 99m Tc-nanocolloid were injected intrader...
We identified superficial lymphatic vessels and regional lymph nodes in approximately 80% of limbs. Deep vessels were visualized in 26% of limbs. Minor findings were reported in 22.7% of limbs examine...
We observed major findings including lymph stagnation, extravasation, or dermal backflow in a significantly higher percentage of limbs with secondary lymphedema than in primary. We also observed the d...
We describe a 57-year-old man with prostate cancer. A radical prostatectomy with a pelvic lymphadenectomy was performed. After 2 years, a mild swelling of the lower extremities appeared, and the patie...
The outcomes of lymphaticovenular anastomosis (LVA), especially for the lower extremities, have varied. To determine the optimal patient selection for LVA, we evaluated the smooth muscle function of l...
We performed a retrospective study of 81 patients with secondary lower extremity lymphedema who had undergone LVA between 2016 and 2018. To reduce the variability in the surgeon-specific variables tha...
The average percentage in the reduction in the ankle, mid-calf, knee, and thigh circumference was 7.9%, 4.7%, 2.9%, and 3.0%, respectively. The average percentage in the reduction in the circumference...
The use of LVA can effectively reduce the circumference of the lower limb. Our results suggest that the lymphoscintigraphy findings could help to predict the effect of LVA and could facilitate optimal...
Lymphoscintigraphy (LS) helps identify drainage to interval (epitrochlear or popliteal) lymph node basins for extremity melanomas. This study evaluated how often routine LS evaluation identified an in...
A single institution, retrospective study identified patients with an extremity melanoma who underwent routine LS and SLN biopsy over a 25-y period. Comparisons of factors associated with the identifi...
In 634 patients reviewed, 5.7% of patients drained to an interval SLN. Of those biopsied, 29.2% were positive for micrometastases. Among patients with biopsies of both the traditional and interval nod...
Distal extremity melanomas have a moderate risk of mapping to an interval SLN. Routine LS should be considered in these patients, especially as these may be the only tumor-positive nodes. However, pri...
Acquired lymphedema of upper extremity is a chronic pathologic status that frequently occurs after breast cancer treatment. Reliable and quantitative evaluation of lymphedema is crucial for successful...
Our study was designed as a retrospective analysis of 85 breast cancer patients with lymphedema who underwent lymphoscintigraphy utilizing either IPC device or conventional stress maneuver and receive...
Of 85 patients, 47 underwent CSL, and 38 underwent PCAL. Participants with relatively preserved flow extent of the lymphatic fluid (FE 3) showed a significant difference in percentage reduction of vol...
Our study suggests that participants in the PCAL group with relatively preserved lymphatic flow extent (FE 3) had better PRV compared with those in the CSL group. The use of IPC devices in lymphoscint...
In the Netherlands, the sentinel lymph node procedure protocol consists of preoperative lymphoscintigraphy combined with intraoperative blue dye for identifying sentinel lymph nodes in early vulvar sq...
From January 2015 to January 2019, early and late lymphoscintigraphies of 52 women were retrospectively analyzed. Lymphoscintigraphy was performed 30 minutes (early) and 2.5-4 hours (late) after vulva...
Thirty-four women had a midline tumor and 18 had a lateral tumor. Detection rates with early and late scintigraphy were 88.5% and 98.1%, respectively. Median number of detected nodes was 1.0 (0-7) and...
This study showed good statistical correlations between early and late scintigraphy in most patients. However, in 35% of women late scintigraphy detected more nodes. In case of poor visualization afte...
Expert representatives from 11 professional societies, as part of an autonomous work group, researched and developed appropriate use criteria (AUC) for lymphoscintigraphy in sentinel lymph node mappin...