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Condition: Dementia
Procedure: SPECT

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Total 19 results found since Jan 2013.

Posterior Fossa Syndrome After Cerebellar Stroke.
We report longitudinal clinical, neurocognitive and neuroradiological findings in a 71-year-old right-handed patient who developed PFS following a right cerebellar haemorrhage that was not surgically evacuated. During follow-up, functional neuroimaging was conducted by means of quantified Tc-99m-ECD SPECT studies. After a 10-day period of akinetic mutism, the clinical picture developed into cerebellar cognitive affective syndrome (CCAS) with reversion to a previously learnt accent, consistent with neurogenic foreign accent syndrome (FAS). No psychometric evidence for dementia was found. Quantified Tc-99m-ECD SPECT studies ...
Source: Cerebellum - April 11, 2013 Category: Neuroscience Authors: Mariën P, Verslegers L, Moens M, Dua G, Herregods P, Verhoeven J Tags: Cerebellum Source Type: research

A review of the evidence of zolpidem efficacy in neurological disability after brain damage due to stroke, trauma and hypoxia: A justification of further clinical trials.
Authors: Sutton JA, Clauss RP Abstract During 15 years, 23 clinical reports and 6 studies have demonstrated associations between sub-sedative doses of zolpidem and recoveries from brain damage due to strokes, trauma and hypoxia. Clinical findings include unexpected awakenings from vegetative states and regressions of stroke symptoms after dosing that disappear during elimination and reappear on repeat dosing. Initially single-photon emission computed tomography scans showed improved perfusion within, around and distant from infarctions. Then positron emission tomography scans and electroencephalography detected ren...
Source: Brain Injury - May 24, 2017 Category: Neurology Tags: Brain Inj Source Type: research

Neurological Involvement in Primary Systemic Vasculitis
Conclusion Neurological involvement is a common complication of PSV (Table 1), and neurologists play an important role in the identification and diagnosis of PSV patients with otherwise unexplained neurological symptoms as their chief complaint. This article summarizes the neurological manifestations of PSV and hopes to improve neuroscientists' understanding of this broad range of diseases. TABLE 1 Table 1. Common CNS and PNS involvements of primary systemic vasculitis. Author Contributions SZ conceived the article and wrote the manuscript. DY and GT reviewed and edited the manuscript. All authors ...
Source: Frontiers in Neurology - April 25, 2019 Category: Neurology Source Type: research

A Case of Transient Global Amnesia: A Review and How It May Shed Further Insight into the Neurobiology of Delusions
Conclusion In closing, our patient’s episode of TGA combined with her emotional and perceptual response lends credence to the proposal of a “fear/paranoia” circuit in the genesis of paranoid delusions—a circuit incorporating amygdala, frontal, and parietal cortices. Here, neutral or irrelevant stimuli, thoughts, and percepts come to engender fear and anxiety, while dysfunction in frontoparietal circuitry engenders inappropriate social predictions and maladaptive inferences about the intentions of others.[54] Hippocampus relays information about contextual information based on past experiences and the current situat...
Source: Innovations in Clinical Neuroscience - April 1, 2016 Category: Neuroscience Authors: ICN Online Editor Tags: Anxiety Disorders Behavioral and Cognitive Neurology Case Report Cognition Current Issue Dementia Medical Issues Neurologic Systems and Symptoms Psychiatry Schizophrenia delusions hippocampus neurobiology Transient global amnesia Source Type: research

Depressive symptoms, atherosclerotic burden and cerebral blood flow disturbances in a cohort of octogenarian men from a general population
Conclusion: In this population-based cohort of octogenarian men free from stroke or dementia, a proportion of subjects with depressive symptoms was low. Still, men with borderline or mild depression scores had lower social and physical activity, persistent smoking habit, worse peripheral circulation in legs, and cerebral perfusion changes in basal nuclei, thalamus and subcortical white matter. Regional CBF decline could be partly mediated by higher SBP.
Source: BMC Psychiatry - Latest articles - December 26, 2013 Category: Psychiatry Authors: Arkadiusz Siennicki-LantzLena André-PeterssonPer WollmerSölve Elmståhl Source Type: research

Systematic review of the diagnostic utility of spect imaging in dementia
Conclusion SPECT does have a diagnostic value, particularly in differentiating Alzheimer's disease from frontotemporal dementia and normal controls, however SPECT should not be used in isolation, rather it should be interpreted together with clinical data, neuropsychological assessment and structural brain imaging as an adjunctive diagnostic tool.
Source: Journal of Neurology, Neurosurgery and Psychiatry - October 9, 2013 Category: Neurosurgery Authors: Yeo, J. M., Lim, X., Khan, Z., Pal, S. Tags: Dementia, Drugs: CNS (not psychiatric), Neuroimaging, Stroke, Memory disorders (psychiatry), Psychiatry of old age, Radiology, Radiology (diagnostics) Association of British Neurologists (ABN) joint meeting with the Royal College of Physicians (RCP), Lo Source Type: research

Dopamine transporter imaging for the diagnosis of dementia with Lewy bodies.
CONCLUSIONS: Only one study has used a neuropathological reference standard to assess the accuracy of DAT imaging for the diagnosis of DLB. The small size of the included study means that sensitivity and specificity estimates are imprecise. However, data from this study suggest that DAT imaging is more accurate than clinical diagnosis. Clinical diagnosis is therefore unsuitable to use as a reference standard for assessing the accuracy of DAT imaging.No studies using a neuropathological reference standard have directly addressed the common clinical scenario where the use of DAT imaging is considered as a diagnostic test in ...
Source: Cochrane Database of Systematic Reviews - February 3, 2015 Category: Journals (General) Authors: McCleery J, Morgan S, Bradley KM, Noel-Storr AH, Ansorge O, Hyde C Tags: Cochrane Database Syst Rev Source Type: research

Regional Cerebral Blood Flow Single Photon Emission Computed Tomography for detection of Frontotemporal dementia in people with suspected dementia.
CONCLUSIONS: At present, we would not recommend the routine use of rCBF SPECT in clinical practice because there is insufficient evidence from the available literature to support this.Further research into the use of rCBF SPECT for differentiating FTD from other dementias is required. In particular, protocols should be standardised, study populations should be well described, the threshold for 'abnormal' scans predefined and clear details given on how scans are analysed. More prospective cohort studies that verify the presence or absence of FTD during a period of follow up should be undertaken. PMID: 26102272 [PubMed ...
Source: Cochrane Database of Systematic Reviews - June 23, 2015 Category: Journals (General) Authors: Archer HA, Smailagic N, John C, Holmes RB, Takwoingi Y, Coulthard EJ, Cullum S Tags: Cochrane Database Syst Rev Source Type: research

Neurologic attack and dynamic perfusion abnormality in neuronal intranuclear inclusion disease
Neuronal intranuclear inclusion disease (NIID) is a neurodegenerative disease characterized by eosinophilic hyaline intranuclear inclusions in cells in the central, peripheral, and autonomic nervous system and visceral organs. Although clinical diagnosis was difficult until recently, an increasing number of adult cases of leukoencephalopathy have been diagnosed antemortem with NIID based on the characteristic hyperintensity in the corticomedullary junction on diffusion-weighted imaging (DWI) and confirmatory skin biopsy.1 While adult-onset NIID is characterized by slowly progressive dementia, it may also present with acute...
Source: Neurology Clinical Practice - December 11, 2017 Category: Neurology Authors: Fujita, K., Osaki, Y., Miyamoto, R., Shimatani, Y., Abe, T., Sumikura, H., Murayama, S., Izumi, Y., Kaji, R. Tags: MRI, SPECT, DWI, All Cognitive Disorders/Dementia Case Source Type: research

Rhenium and technetium complexes of thioamide derivatives of pyridylhydrazine that bind to amyloid- β plaques.
Rhenium and technetium complexes of thioamide derivatives of pyridylhydrazine that bind to amyloid-β plaques. J Biol Inorg Chem. 2018 Jul 07;: Authors: Fletcher SP, Noor A, Hickey JL, McLean CA, White JM, Donnelly PS Abstract Age-associated deposition of amyloid-β in cerebral blood vessels, a condition referred to as cerebral amyloid angiopathy, can contribute to stroke and dementia. This research aimed to design new radioactive technetium-99 m complexes that bind to amyloid-β plaques that have the potential to assist in diagnosis of cerebral amyloid angiopathy using single-photon-emitted computed...
Source: Journal of Biological Inorganic Chemistry : JBIC - July 7, 2018 Category: Chemistry Authors: Fletcher SP, Noor A, Hickey JL, McLean CA, White JM, Donnelly PS Tags: J Biol Inorg Chem Source Type: research

Brain imaging of locomotion in neurological conditions
Publication date: Available online 25 October 2018Source: Neurophysiologie CliniqueAuthor(s): Gilles Allali, Helena M. Blumen, Hervé Devanne, Elvira Pirondini, Arnaud Delval, Dimitri Van De VilleSummaryImpaired locomotion is a frequent and major source of disability in patients with neurological conditions. Different neuroimaging methods have been used to understand the brain substrates of locomotion in various neurological diseases (mainly in Parkinson's disease) during actual walking, and while resting (using mental imagery of gait, or brain-behavior correlation analyses). These studies, using structural (i.e., MRI) or ...
Source: Neurophysiologie Clinique - October 26, 2018 Category: Neuroscience Source Type: research

Light-Induced Pupillary Responses in Alzheimer's Disease
Light-Induced Pupillary Responses in Alzheimer's Disease Pratik S. Chougule1, Raymond P. Najjar1,2, Maxwell T. Finkelstein1, Nagaendran Kandiah3,4 and Dan Milea1,2,5* 1Department of Visual Neurosciences, Singapore Eye Research Institute, Singapore, Singapore 2The Ophthalmology & Visual Sciences ACP, Duke-National University of Singapore (NUS) Medical School, Singapore, Singapore 3Department of Neurology, National Neuroscience Institute, Singapore, Singapore 4Duke-National University of Singapore (NUS), Singapore, Singapore 5Singapore National Eye Centre, Singapore, Singapore The impact of Alzhe...
Source: Frontiers in Neurology - April 11, 2019 Category: Neurology Source Type: research

Optimized sampling for high resolution multi-pinhole brain SPECT with stationary detectors.
Abstract Brain perfusion SPECT can be used in the diagnosis of various neurologic or psychiatric disorders, e.g. stroke, epilepsy, dementia and posttraumatic stress disorder. As traditional SPECT provides limited resolution and sensitivity, we recently proposed a high resolution focusing multi-pinhole clinical SPECT scanner dubbed G-SPECT-I (Beekman et al 2015). G-SPECT-I achieves data completeness in the scan region of interest by making small translations of the patient bed while using projections from all bed positions together for image reconstruction. A strategy to restrict the number of bed translations is d...
Source: Physics in Medicine and Biology - November 25, 2019 Category: Physics Authors: Chen Y, Goorden MC, Vastenhouw B, Beekman FJ Tags: Phys Med Biol Source Type: research

Prognostic value of 99m Tc-ECD brain perfusion SPECT in patients with atrial fibrillation and dementia
ConclusionThis study demonstrated that decreased cerebral blood flow in the temporo-parieto-occipital lobe could be a potential prognostic value in patients with both AF and dementia.
Source: EJNMMI Research - January 9, 2020 Category: Radiology Source Type: research

Value of SPECT/CT over planar imaging during Tc-99m MDP triple phase bone scintigraphy for detection of osteomyelitis in patients with stage IV pressure ulcers
Conclusion: SPECT/CT imaging has a significant added diagnostic value over planar imaging in accurately detecting osseous involvement with stage IV pressure ulcers. It significantly reduced equivocal results by accurate uptake localization, reducing false positive results due to other associated pathologies and reducing false negative results due to overlap by other structures or difficult patient positioning.
Source: Journal of Nuclear Medicine - May 14, 2020 Category: Nuclear Medicine Authors: Nasr, H., Alfawzan, T., Alqarni, A., Farghaly, H. Tags: Infection/Pulmonary/Outcomes (Poster Session) Source Type: research