Results 41 to 50 of about 5,386 (172)

Improving the Quality of Brain PET Images Using MR‐Guided PET Reconstruction Technique With Integrated PET/MR

Human Brain Mapping, Volume 46, Issue 11, 01 August 2025.
The PET list‐mode data was processed with OSEM algorithm and MR‐guided reconstruction (MRg) based on T1‐weighted MR images (TIWI). Several quantitative parameters were calculated to compare the image quality for conventional OSEM, OSEM_GF, and MRg reconstructions with varying parameters (θ = 0.5, 1, 2).
Hongda Shao, Gan Huang, Yue Wang, Yan Zhang, Qiaoyi Xue, Jiaxin Hao, Jianjun Liu   +6 more
wiley   +1 more source

Incidence, Characteristics, and Risk Factors of Post‐Radiosurgery Headaches: A Prospective Observational Study

CNS Neuroscience &Therapeutics, Volume 31, Issue 3, March 2025.
Based on prospective observations of the characteristics of post‐radiosurgery headache, supplementary diagnostic criteria have been proposed. Female gender, younger age, no prior craniocerebral surgery, and multiple lesions are identified as risk factors for the occurrence of post‐radiosurgery headache.
Shaobo Xiao, Jiayi Liu, Yunmo Liu, Guangshuang Lu, Yan Chang, Jinjing Zhao, Wenjie Su, Xinghao Guo, Nan Gao, Xiufen Zhang, Ke Liu, Zhen Zhang, Shengyuan Yu, Longsheng Pan, Ruozhuo Liu   +14 more
wiley   +1 more source

Cavernoma gigante: relato de dois casos Giant cavernous angioma: report of two cases

Arquivos de Neuro-Psiquiatria, 2002
Angiomas cavernosos ou hemangiomas ou ainda cavernomas são malformações do sistema nervoso central, classificadas como lesões cerebrais vasculares ocultas, frequentemente assintomáticas, sendo relativamente raras.
Guilherme Cabral de Andrade, Mirto Nelso Prandini, Fernando Menezes Braga   +2 more
doaj   +1 more source

α4β2* nicotinic acetylcholine receptors drive human temporal glutamate/GABA balance toward inhibition

The Journal of Physiology, Volume 603, Issue 6, Page 1645-1662, 15 March 2025.
Abstract figure legend α4β2* nicotinic acetylcholine receptors (α4β2*nAChR) modulate the synaptic transmission in the temporal human neocortex, recorded from layer 5 pyramidal neurons. We describe a monosynaptic mechanism at the GABAergic synapses (left), in which the activation of the heteromeric nicotinic receptors, expressed on the presynaptic cell,
Katiuscia Martinello, Addolorata Mascia, Sara Casciato, Giancarlo Di Gennaro, Vincenzo Esposito, Michele Zoli, Cecilia Gotti, Sergio Fucile   +7 more
wiley   +1 more source

Peri‐ictal yawning: A potential lateralizing sign in temporal lobe epilepsy

Epilepsia Open, Volume 10, Issue 1, Page 196-209, February 2025.
Abstract Objective The primary objective of this retrospective analysis was to evaluate the incidence and lateralization value of peri‐ictal yawning (PY) in people with temporal lobe epilepsy (TLE). PY has only occasionally been reported as a manifestation of focal epilepsy.
Xiaoping Du, Yi Yao, Jiani Chen, Xiaoping Yang, Lei Zhang, Yingying Tang, Xiaoting Hao, Dong Zhou, Shizhong Lian, Fengpeng Wang, Xiaobin Zhang, Meizhen Sun, Junhong Guo   +12 more
wiley   +1 more source

Routinely Performed Serial Follow-Up Imaging in Asymptomatic Patients With Multiple Cerebral Cavernous Malformations Has No Influence on Surgical Decision Making

Frontiers in Neurology, 2018
Background: The best strategy to perform follow-up of patients with multiple cerebral cavernous malformations (mCCM) is unclear due to the unpredictable clinical course. Still, serial radiological follow-up is often performed.
Julia Velz, Julia Velz, Martin Nikolaus Stienen, Martin Nikolaus Stienen, Marian Christoph Neidert, Marian Christoph Neidert, Yang Yang, Yang Yang, Luca Regli, Luca Regli, Oliver Bozinov, Oliver Bozinov   +11 more
doaj   +1 more source

Cerebral Cavernous Malformation: From Genetics to Pharmacotherapy

Brain and Behavior, Volume 15, Issue 1, January 2025.
CCM1, CCM2, CCM3, MAP3K3, and PIK3CA genes mediate CCM pathogenesis by regulating the RhoA–ROCK, MAP3K3–KLF2/4, and PIK3CA–AKT–mTOR pathways, affecting processes such as cell migration, intercellular junctions, cell proliferation, inflammation, autophagy, EndMT, angiogenesis, and oxidative stress.
Zhuangzhuang Zhang, Jianwen Deng, Weiping Sun, Zhaoxia Wang   +3 more
wiley   +1 more source

Stereotactic radiosurgery for cavernous angioma of the brain

Ukrainian Neurosurgical Journal, 2012
Introduction. As today a debate is taking place about the risk of hemorrhage after radiation treatment of brain cavernous angioma, the results of stereotactic radiosurgery (SRS) for this pathology are presented here.Methods.
Olga Chuvashova, Irina Kruchok
doaj   +1 more source

A Rare Nasopharyngeal Hemangioma Presenting as Recurrent Cyanotic Apnea in a Neonate: A Case Report and Literature Review

Case Reports in Medicine, Volume 2025, Issue 1, 2025.
Background: Infantile hemangiomas (IHs) are the most common vascular tumors of infancy, but airway involvement is rare and potentially life‐threatening. While subglottic and laryngeal regions are most frequently affected, nasopharyngeal hemangiomas are exceptionally uncommon, particularly in premature infants presenting with nonspecific symptoms such ...
Pershia Davoodi Karsalari, Samin Mortaheb, Heliya Rafsanjani, Noosha Samieefar, Aslan Ahmadi, Parinaz Alizadeh, Viswanatha Borlingegowda   +6 more
wiley   +1 more source

Cavernous Angioma of the Cerebellum

Neurologia medico-chirurgica, 1989
Computed tomography (CT) allows earlier diagnosis of intracranial cavernous angioma than was formerly possible. However, cerebellar lesions are uncommon. Cerebellar cavernous angioma with hemorrhage was diagnosed in a 54-year-old male who suddenly developed nausea and vomiting, then declined over the following week and developed ataxia and nystagmus ...
S, Ishikawa, S, Kuwabara, A, Fukuma, H, Seo, S, Andoh   +4 more
openaire   +2 more sources