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Total 384 results found since Jan 2013.

3D-printed model reproduces real prostate properties
Researchers from Minnesota have used a 3D printer to generate patient-specific...Read more on AuntMinnie.comRelated Reading: 3D-printed kidney helps optimize SPECT/CT quantification 3D-printed prosthetics improve surgery for hearing loss 3D printing lowers risk and cost of testing FFR-CT How radiologists can optimize their role in 3D printing 3D-printed model helps prepare for stroke clot removal
Source: AuntMinnie.com Headlines - December 28, 2017 Category: Radiology Source Type: news

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

3D-printed kidney helps optimize SPECT/CT quantification
Low-cost, 3D-printed kidney phantoms provide shape-specific details that improve...Read more on AuntMinnie.comRelated Reading: 3D-printed model helps prepare for stroke clot removal 3D printing shortens hip surgery times, lowers costs 3D printing helps evaluate leaks after TAVR procedures New therapeutic agent could treat prostate cancer 3D-printed kidney phantom advances SPECT/CT calibration
Source: AuntMinnie.com Headlines - December 5, 2017 Category: Radiology Source Type: news

Positional Brain Single-Photon Emission Computed Tomography Findings in a Case of Limb-Shaking Syndrome
An 84-year-old man, who presented lower limbs limb-shaking syndrome at orthostatism lasting a few seconds, was referred in our stroke unit. Magnetic resonance imaging showed an acute infarction in the right thalamus and the insular cortex, left extracranial carotid stenosis at 80%, and low flow in the right middle cerebral artery but did not explain limb-shaking syndrome symptomatology. We performed comparative positional brain perfusion single-photon emission computed tomography (SPECT), in the upright and in the supine position, to explore and localize hypoperfusion-endangered brain structures that may be involved in the...
Source: Journal of Stroke and Cerebrovascular Diseases - December 4, 2017 Category: Neurology Authors: Caroline Bund, C éline Heimburger, Valérie Wolff, Izzie Jacques Namer Tags: Case Report Source Type: research

Assessment of cerebral blood perfusion changes after neurorehabilitation therapy in patients with middle cerebral artery infarction: An acetazolamide ‐challenged SPECT study
Abstract Stroke is a leading cause of death and disability worldwide. Although neuroimaging has been used to examine brain changes related to recovery from stroke, cerebral perfusion changes after rehabilitation have yet to be elucidated. The aim of this study was to evaluate the regional cerebral blood flow (rCBF) changes and their associations with gross motor functions after neurorehabilitation therapy in stroke patients. A total of 7 patients with middle cerebral artery (MCA) infarction received conventional neurorehabilitation therapy twice per day for 4‐6 weeks on admission. Brain perfusion images were acquired bef...
Source: International Journal of Imaging Systems and Technology - November 11, 2017 Category: Radiology Authors: Kyung ‐Sool Jang, Jooyeon J. Im, Yong‐An Chung, Sung‐Woo Chung, Hyeonseok S. Jeong, Min‐Wook Kim Tags: RESEARCH ARTICLE Source Type: research

Degeneration of paramedian nuclei in the thalamus induces Holmes tremor in a case of artery of Percheron infarction
Abstract Rationale: Holmes’ tremor is an uncommon neurologic disorder following brain insults, and its pathogenesis is undefined. The interruption of the dento-rubro-thalamic tract and secondary deterioration of the nigrostriatal pathway are both required to initiate Holmes’ tremor. We used nuclear medicine imaging tools to analyze a patient with concurrent infarction in different zones of each side of the thalamus. Finding whether the paramedian nuclear groups of the thalamus were injured was a decisive element for developing Holmes’ tremor. Patient concerns: A 36-year-old woman was admitted to our department d...
Source: Medicine - November 1, 2017 Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research

Integrin {alpha}4 Overexpression on Rat Mesenchymal Stem Cells Enhances Transmigration and Reduces Cerebral Embolism After Intracarotid Inȷection Brief Report
Conclusions—ITGA4 overexpression on MSCs enhances transendothelial migration in vitro, but not in vivo, although it improves safety after intracarotid transplantation into stroke rats.
Source: Stroke - September 25, 2017 Category: Neurology Authors: Li–li Cui, Franziska Nitzsche, Evgeny Pryazhnikov, Marina Tibeykina, Laura Tolppanen, Jussi Rytkonen, Tuulia Huhtala, Jing–wei Mu, Leonard Khiroug, Johannes Boltze, Jukka Jolkkonen Tags: Cell Therapy, Translational Studies, Ischemic Stroke Brief Reports Source Type: research

Experimental cardiac radiation exposure induces ventricular diastolic dysfunction with preserved ejection fraction
Breast cancer radiotherapy increases the risk of heart failure with preserved ejection fraction (HFpEF). Cardiomyocytes are highly radioresistant, but radiation specifically affects coronary microvascular endothelial cells, with subsequent microvascular inflammation and rarefaction. The effects of radiation on left ventricular (LV) diastolic function are poorly characterized. We hypothesized that cardiac radiation exposure may result in diastolic dysfunction without reduced EF. Global cardiac expression of the sodium-iodide symporter (NIS) was induced by cardiotropic gene (adeno-associated virus serotype 9) delivery to 5-w...
Source: AJP: Heart and Circulatory Physiology - August 11, 2017 Category: Cardiology Authors: Saiki, H., Moulay, G., Guenzel, A. J., Liu, W., Decklever, T. D., Classic, K. L., Pham, L., Chen, H. H., Burnett, J. C., Russell, S. J., Redfield, M. M. Tags: RESEARCH ARTICLE Source Type: research

The Posterior Fossa and Foreign Accent Syndrome: Report of Two New Cases and Review of the Literature
AbstractForeign accent syndrome is a rare motor speech disorder that causes patients to speak their language with a non-native accent. In the neurogenic condition, the disorder develops after lesions in the language dominant hemisphere, often affecting Broca ’s area, the insula, the supplementary motor area and the primary motor cortex. Here, we present two new cases of FAS after posterior fossa lesions. The first case is a 44-year-old, right-handed, Dutch-speaking man who suffered motor speech disturbances and a left hemiplegia after a pontine infarc tion. Quantified SPECT showed a bilateral hypoperfusion in the inferio...
Source: The Cerebellum - July 5, 2017 Category: Neurology Source Type: research

Accelerated atherosclerosis in ANCA ‐associated vasculitis
ConclusionsOur study adds weight to the presence of increased atherosclerosis in AAV‐patients. The association observed between CIMT and PI‐ICA with small vessel cerebral disease, points the possible association of easy to use carotid US in predicting microvascular brain injury.
Source: Acta Neurologica Scandinavica - June 13, 2017 Category: Neurology Authors: I. Gonz ález‐Suárez, J. J. Ríos‐Blanco, J. Arpa Tags: ORIGINAL ARTICLE Source Type: research

Uneven cerebral hemodynamic change as a cause of neurological deterioration in the acute stage after direct revascularization for moyamoya disease: cerebral hyperperfusion and remote ischemia caused by the ‘watershed shift’
AbstractSuperficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is the standard surgical treatment for moyamoya disease (MMD). The main potential complications of this treatment are cerebral hyperperfusion (CHP) syndrome and ischemia, and their managements are contradictory to each other. We retrospectively investigated the incidence of the simultaneous manifestation of CHP and infarction after surgery for MMD. Of the 162 consecutive direct revascularization surgeries performed for MMD, we encountered two adult cases (1.2%) manifesting the simultaneous occurrence of symptomatic CHP and remote infarction in...
Source: Neurosurgical Review - June 13, 2017 Category: Neurosurgery Source Type: research

Experimental Cardiac Radiation Exposure Induces Ventricular Diastolic Dysfunction with Preserved Ejection Fraction.
CONCLUSION: Experimental cardiac radiation exposure resulted in diastolic dysfunction without reduced EF. These data provide insight into the association between cardiac radiation exposure and HFpEF risk and lend further support for the importance of inflammation related coronary microvascular compromise in HFpEF. PMID: 28550173 [PubMed - as supplied by publisher]
Source: American Journal of Physiology. Heart and Circulatory Physiology - May 26, 2017 Category: Physiology Authors: Saiki H, Moulay G, Guenzel AJ, Liu W, Decklever T, Classic K, Pham L, Chen HH, Burnett JC, Russell SJ, Redfield MM Tags: Am J Physiol Heart Circ Physiol 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

All That Glitters Is not Gold: Peals and Pitfalls in I-131 Scans for Differentiated Thyroid Cancer
Conclusion: We review thyroid gland physiology and describe a systemic overview of potential false positive and false negative lack of uptake of radioiodine in the whole body along with illustrations and cases. By understanding the physiology and characteristics of radioiodine uptake and correlating with anatomical imaging, biochemical data, and clinical findings, physicians can be more confident in establishing proper management for patients with DTC using radioiodine whole body scans. Research Support: N/A
Source: Journal of Nuclear Medicine - May 24, 2017 Category: Nuclear Medicine Authors: Lazaga, F., Sharma, S., Sharma, P., Williams, S. Tags: Educational Exhibits Posters Source Type: research