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JOURNAL ARTICLE
Hui Shi, Florian Prayer, Patric Kienast, Farjad Khalaveh, Christian Nasel, Julia Binder, Martin L Watzenboeck, Michael Weber, Daniela Prayer, Gregor Kasprian
OBJECTIVE: To identify brain edema in fetuses with Chiari II malformation using a multiparametric approach including structural T2-weighted, diffusion tensor imaging (DTI) metrics, and MRI-based radiomics. METHODS: A single-center retrospective review of MRI scans obtained in fetuses with Chiari II was performed. Brain edema cases were radiologically identified using the following MR criteria: brain parenchymal T2 prolongation, blurring of lamination, and effacement of external CSF spaces...
April 24, 2024: European Radiology
#2
JOURNAL ARTICLE
Bahram Jafrasteh, Manuel Lubián-Gutiérrez, Simón Pedro Lubián-López, Isabel Benavente-Fernández
Magnetic Resonance Imaging (MRI) plays an important role in neurology, particularly in the precise segmentation of brain tissues. Accurate segmentation is crucial for diagnosing brain injuries and neurodegenerative conditions. We introduce an Enhanced Spatial Fuzzy C-means (esFCM) algorithm for 3D T1 MRI segmentation to three tissues, i.e. White Matter (WM), Gray Matter (GM), and Cerebrospinal Fluid (CSF). The esFCM employs a weighted least square algorithm utilizing the Structural Similarity Index (SSIM) for polynomial bias field correction...
April 24, 2024: Neuroinformatics
#3
JOURNAL ARTICLE
Jan W Eriksson, Maria J Pereira, Christakis Kagios, Sofia Kvernby, Elin Lundström, Giovanni Fanni, Martin H Lundqvist, Björn C L Carlsson, Magnus Sundbom, Sambit Tarai, Mark Lubberink, Joel Kullberg, Ulf Risérus, Håkan Ahlström
AIMS/HYPOTHESIS: Obesity surgery (OS) and diet-induced weight loss rapidly improve insulin resistance. We aim to investigate the impact of either Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG) surgery compared with a diet low in energy (low-calorie diet; LCD) on body composition, glucose control and insulin sensitivity, assessed both at the global and tissue-specific level in individuals with obesity but not diabetes. METHODS: In this parallel group randomised controlled trial, patients on a waiting list for OS were randomised (no blinding, sealed envelopes) to either undergo surgery directly or undergo an LCD before surgery...
April 24, 2024: Diabetologia
#4
JOURNAL ARTICLE
Regina S Wright, Alexa C Allan, Alyssa A Gamaldo, Adrienne A Morgan, Anna K Lee, Guray Erus, Christos Davatzikos, Desirée C Bygrave
It is not well understood how neighborhood disadvantage is associated with specific domains of cognitive function and underlying brain health within older adults. Thus, the objective was to examine associations between neighborhood disadvantage, brain health, and cognitive performance, and examine whether associations were more pronounced among women. The study included 136 older adults who underwent cognitive testing and MRI. Neighborhood disadvantage was characterized using the Area Deprivation Index (ADI)...
April 24, 2024: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
#5
REVIEW
Ictal Coprolalia: Three Cases with Nondominat Frontal Lobe Involvement and Review of the Literature.
Okan Sokmen, F Irsel Tezer, Kader Karli Oguz, Bilge Volkan-Salanci, Eser Lay Ergün, Serap Saygi
Objective: Coprolalia is defined as the involuntary use of obscene, socially unacceptable, and derogatory words. Ictal coprolalia is a rare presentation of epilepsy. This study aimed to determine the localizing and lateralizing value and frequency of ictal coprolalia in epilepsy patients. Methods: Medical files, discharge summaries, and electroencephalography (EEG) reports of 2238 patients were reviewed retrospectively. We identified patients who suffered from ictal coprolalia. Electroencephalography reports, neuroimaging [brain magnetic resonance imaging (MRI), fluorodeoxyglucose positron emission tomography (FDG-PET), single-photon emission computerized tomography (SPECT)] records, F-18 FDG fused on MRI images, and ictal SPECT fused on MRI images were evaluated...
April 24, 2024: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
#6
JOURNAL ARTICLE
Chad William Farris
No abstract text is available yet for this article.
April 24, 2024: AJR. American Journal of Roentgenology
#7
JOURNAL ARTICLE
Toshiki Okumura, Ikuhiro Kida, Atsushi Yokoi, Tomoya Nakai, Shinji Nishimoto, Kazushige Touhara, Masako Okamoto
Olfactory perception depends not only on olfactory inputs but also on semantic context. Although multi-voxel activity patterns of the piriform cortex, a part of the primary olfactory cortex, have been shown to represent odor perception, it remains unclear whether semantic contexts modulate odor representation in this region. Here, we investigated whether multi-voxel activity patterns in the piriform cortex change when semantic context modulates odor perception and, if so, whether the modulated areas communicate with brain regions involved in semantic and memory processing beyond the piriform cortex...
April 15, 2024: Human Brain Mapping
#8
Derya Kaya, Canan Ceylan Köse, Mehmet Berkay Akcan, Fatma Silan
Biallelic pathogenic variations in the zinc finger protein 142 (ZNF142) gene are associated with neurodevelopmental disorder with impaired speech and hyperkinetic movements (NEDISHM). This disorder is characterized by developmental delay, intellectual disability, speech delay, and movement disorders such as dystonia, tremor, ataxia, and chorea. Here, we report a patient who exhibited common neurological features and rarely reported brain MRI findings. Exome sequencing identified a novel biallelic variant in ZNF142 (c...
April 24, 2024: American Journal of Medical Genetics. Part A
#9
JOURNAL ARTICLE
Brian S Adams, Dominic J Marino, Catherine A Loughin, Leonard J Marino, Teresa Southard, Martin L Lesser, Meredith Akerman, Patrick Roynard
OBJECTIVE: To determine if a single brain biopsy utilizing a freeze-core needle harvest system Cassi II under ultrasound guidance provides a diagnostic sample; to evaluate the technique's efficacy in procuring diagnostic samples in comparison with "open" surgical biopsies; and to describe intraoperative complications associated with the technique. STUDY DESIGN: Experimental clinical study. ANIMALS: Seventeen dogs and four cats with magnetic resonance imaging (MRI) diagnoses of readily surgically accessible intracranial masses...
2024: Frontiers in Veterinary Science
#10
JOURNAL ARTICLE
Elena Beani, Veronica Barzacchi, Elena Scaffei, Beatrice Ceragioli, Fabrizia Festante, Silvia Filogna, Giovanni Cioni, Simona Fiori, Giuseppina Sgandurra
Unilateral spastic Cerebral Palsy (UCP) results from congenital brain injury, and Magnetic Resonance Imaging (MRI) has a role in understanding the etiology and severity of brain insult. In UCP, functional impairment predominantly occurs in the upper limb (UL) of the more affected side, where manual ability and dexterity are typically reduced. Also, mirror movements (MMs), are often present in UCP, with a further possible negative functional impact. This study aims to investigate the relationships among neuroanatomical characteristics of brain injury at MRI, manual functional impairment and MMs, in children with UCP...
2024: Frontiers in Human Neuroscience
#11
JOURNAL ARTICLE
Luca Caschera, Giorgio Fiore, Simone Nava, Stefania Criscuolo, Francesco M Lo Russo, Silvia Casale, Giorgio Conte, Giulia Platania, Antonella Costa, Giorgio Carrabba, Marco Locatelli, Fabio Maria Triulzi
Diabetic ketoacidosis (DKA) is a serious complication in children with diabetes mellitus type 1 (DM1). In rare and severe cases DKA may be complicated by cerebral edema, central brain herniation and cerebral infarctions. We present the magnetic resonance imaging findings in a child with DKA and central nervous system involvement; diffusion tensor imaging (DTI) and functional MRI (fMRI) were performed to assess the white matter integrity of sensory pathways and cortical sensory processing. Conventional imaging showed bilateral uncal herniation, effacement of the perimesencephalic cisterns, wide ischemic lesions in the posterior cerebral artery (PCA) territories, sagging brainstem and Duret's hemorrhage consistent with signs of central brain herniation and intracranial hypertension...
April 23, 2024: Neuroradiology Journal
#12
JOURNAL ARTICLE
Daniëlle van Dorth, Feng Yan Jiang, Bárbara Schmitz-Abecassis, Robert J I Croese, Martin J B Taphoorn, Marion Smits, Johan A F Koekkoek, Linda Dirven, Jeroen de Bresser, Matthias J P van Osch
Arterial spin labeling (ASL) and dynamic susceptibility contrast (DSC) magnetic resonance imaging (MRI) have shown potential for differentiating tumor progression from pseudoprogression. For pseudocontinuous ASL with a single postlabeling delay, the presence of delayed arterial transit times (ATTs) could affect the evaluation of ASL-MRI perfusion data. In this study, the influence of ATT artifacts on the perfusion assessment and differentiation between tumor progression and pseudoprogression were studied. This study comprised 66 adult patients (mean age 60 ± 13 years; 40 males) with a histologically confirmed glioblastoma who received postoperative radio (chemo)therapy...
April 23, 2024: NMR in Biomedicine
#13
JOURNAL ARTICLE
Hannah Baumeister, Jacob W Vogel, Philip S Insel, Luca Kleineidam, Steffen Wolfsgruber, Melina Stark, Helena M Gellersen, Renat Yakupov, Matthias C Schmid, Falk Lüsebrink, Frederic Brosseron, Gabriel Ziegler, Silka D Freiesleben, Lukas Preis, Luisa-Sophie Schneider, Eike J Spruth, Slawek Altenstein, Andrea Lohse, Klaus Fliessbach, Ina R Vogt, Claudia Bartels, Björn H Schott, Ayda Rostamzadeh, Wenzel Glanz, Enise I Incesoy, Michaela Butryn, Daniel Janowitz, Boris-Stephan Rauchmann, Ingo Kilimann, Doreen Goerss, Matthias H Munk, Stefan Hetzer, Peter Dechent, Michael Ewers, Klaus Scheffler, Anika Wuestefeld, Olof Strandberg, Danielle van Westen, Niklas Mattsson-Carlgren, Shorena Janelidze, Erik Stomrud, Sebastian Palmqvist, Annika Spottke, Christoph Laske, Stefan Teipel, Robert Perneczky, Katharina Buerger, Anja Schneider, Josef Priller, Oliver Peters, Alfredo Ramirez, Jens Wiltfang, Michael T Heneka, Michael Wagner, Emrah Düzel, Frank Jessen, Oskar Hansson, David Berron
Memory clinic patients are a heterogeneous population representing various aetiologies of pathological aging. It is unknown if divergent spatiotemporal progression patterns of brain atrophy, as previously described in Alzheimer's disease (AD) patients, are prevalent and clinically meaningful in this group of older adults. To uncover distinct atrophy subtypes, we applied the Subtype and Stage Inference (SuStaIn) algorithm to baseline structural MRI data from 813 participants enrolled in the DELCODE cohort (mean ± SD age = 70...
April 24, 2024: Brain
#14
JOURNAL ARTICLE
Rafaela Morais-Ribeiro, Francisco C Almeida, Ana Coelho, Tiago Gil Oliveira
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that primarily affects the hippocampus. Since hippocampal studies have highlighted a differential subregional regulation along its longitudinal axis, a more detailed analysis addressing subregional changes along the longitudinal hippocampal axis has the potential to provide new relevant biomarkers. This study included structural brain MRI data of 583 participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI). Cognitively normal (CN) subjects, mild cognitively impaired (MCI) subjects and AD patients were conveniently selected considering the age and sex match between clinical groups...
April 23, 2024: European Journal of Neuroscience
#15
JOURNAL ARTICLE
Ting-Yu Chen, Jun-Ding Zhu, Shih-Jen Tsai, Albert C Yang
BACKGROUND: Alzheimer's disease is characterized by large-scale structural changes in a specific pattern. Recent studies developed morphological similarity networks constructed by brain regions similar in structural features to represent brain structural organization. However, few studies have used local morphological properties to explore inter-regional structural similarity in Alzheimer's disease. METHODS: Here, we sourced T1-weighted MRI images of 342 cognitively normal participants and 276 individuals with Alzheimer's disease from the Alzheimer's Disease Neuroimaging Initiative database...
April 23, 2024: Alzheimer's Research & Therapy
#16
JOURNAL ARTICLE
Yong Hun Jang, Jusung Ham, Payam Hosseinzadeh Kasani, Hyuna Kim, Joo Young Lee, Gang Yi Lee, Tae Hwan Han, Bung-Nyun Kim, Hyun Ju Lee
The neurodevelopmental outcomes of preterm infants can be stratified based on the level of prematurity. We explored brain structural networks in extremely preterm (EP; < 28 weeks of gestation) and very-to-late (V-LP; ≥ 28 and < 37 weeks of gestation) preterm infants at term-equivalent age to predict 2-year neurodevelopmental outcomes. Using MRI and diffusion MRI on 62 EP and 131 V-LP infants, we built a multimodal feature set for volumetric and structural network analysis...
April 23, 2024: Scientific Reports
#17
JOURNAL ARTICLE
Chae Jung Park, Sooyon Kim, Kyunghwa Han, Sung Soo Ahn, Dain Kim, Yae Won Park, Jong Hee Chang, Se Hoon Kim, Seung-Koo Lee
PURPOSE: Lower-grade gliomas of histologic grades 2 and 3 follow heterogenous clinical outcomes, which necessitates risk stratification. This study aimed to evaluate whether diffusion-weighted and perfusion-weighted MRI radiomics allow overall survival (OS) prediction in patients with lower-grade gliomas and investigate its prognostic value. MATERIALS AND METHODS: In this retrospective study, radiomic features were extracted from apparent diffusion coefficient, relative cerebral blood volume map, and Ktrans map in patients with pathologically confirmed lower-grade gliomas (January 2012-February 2019)...
May 2024: Yonsei Medical Journal
#18
JOURNAL ARTICLE
Gongshu Wang, Ning Jiang, Yunxiao Ma, Duanduan Chen, Jinglong Wu, Guoqi Li, Dong Liang, Tianyi Yan
Structural magnetic resonance imaging (sMRI) has shown great clinical value and has been widely used in deep learning (DL) based computer-aided brain disease diagnosis. Previous DL-based approaches focused on local shapes and textures in brain sMRI that may be significant only within a particular domain. The learned representations are likely to contain spurious information and have poor generalization ability in other diseases and datasets. To facilitate capturing meaningful and robust features, it is necessary to first comprehensively understand the intrinsic pattern of the brain that is not restricted within a single data/task domain...
April 7, 2024: Neural Networks: the Official Journal of the International Neural Network Society
#19
JOURNAL ARTICLE
Bart R Thomson, Nina Schwendinger, Katrin Beckmann, Thomas Gentinetta, Daniel Couto, Sandra Wymann, Valérie Verdon, Raphael M Buzzi, Kevin Akeret, Peter W Kronen, Eva M Weinberger, Ulrike Held, Frauke Seehusen, Henning Richter, Dominik J Schaer, Michael Hugelshofer
Secondary brain injury (SBI) occurs with a lag of several days post-bleeding in patients with aneurysmal subarachnoid hemorrhage (aSAH) and is a strong contributor to mortality and long-term morbidity. aSAH-SBI coincides with cell-free hemoglobin (Hb) release into the cerebrospinal fluid. This temporal association and convincing pathophysiological concepts suggest that CSF-Hb could be a targetable trigger of SBI. However, sparse experimental evidence for Hb's neurotoxicity in vivo defines a significant research gap for clinical translation...
April 23, 2024: Translational Stroke Research
#20
JOURNAL ARTICLE
Mehdi Khaleghi, Lucas P Carlstrom, Claudio Andres Callejas, Peter Kobalka, Ricardo Carrau, Daniel M Prevedello
BACKGROUND AND IMPORTANCE: Various invasive oculoplastic procedures are commonly utilized to control the rectus muscles and widen the surgical corridor through the endoscopic endonasal removal of large orbital apex cavernous hemangiomas (OACHs). They require additional transconjunctival incision, rectus muscle insertional retraction, or muscle deinsertion at the globe that might not be safe and lead to prolonged postoperative extraocular muscle dysfunction. In this article, the authors described a modified 3-handed extracapsular technique for the resection of a large OACH without an additional procedure for rectus muscle control...
April 23, 2024: Operative Neurosurgery (Hagerstown, Md.)
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