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Procedure: SPECT

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Total 384 results found since Jan 2013.

Improvement in cerebral hemodynamic parameters and outcomes after superficial temporal artery-middle cerebral artery bypass in patients with severe stenoocclusive disease of the intracranial internal carotid or middle cerebral arteries.
CONCLUSIONS STA-MCA bypass surgery in carefully selected patients with symptomatic severe intracranial stenoocclusive disease of the intracranial ICA or MCA results in significant improvement in hemodynamic parameters and reduction in stroke recurrence. PMID: 26023999 [PubMed - as supplied by publisher]
Source: Journal of Neurosurgery - May 29, 2015 Category: Neurosurgery Authors: Low SW, Teo K, Lwin S, Yeo LL, Paliwal PR, Ahmad A, Sinha AK, Teoh HL, Wong LY, Chong VF, Seet RC, Chan BP, Yeo TT, Chou N, Sharma VK Tags: J Neurosurg 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

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

Feasibility of biventricular volume and function assessment using first-pass gated 15 O-water PET
ConclusionsBiventricular volume and function assessment are achievable using the first-pass PET, and LV parameters correlate well with those derived from gated myocardial SPECT.
Source: EJNMMI Research - September 17, 2018 Category: Radiology Source Type: research

Migrainous Infarction in a Patient With Sporadic Hemiplegic Migraine and Cystic Fibrosis: A 99mTc-HMPAO Brain SPECT Study.
We describe the case of a patient with CF, who had a migrainous stroke during an SHM attack. A 32-year-old Caucasian male was diagnosed with CF, with heterozygotic delta F508/unknown CFTR mutation. The patient experiences bouts of coughing sometimes triggering SHM attacks with visual phosphenes, aphasia, right-sided paresthesia, and hemiparesis. He had a 48-hour hemiparesis triggered by a bout of coughing with hemoptysis, loss of consciousness, and severe hypoxia-hypercapnia. MRI demonstrated transient diffusion hyperintensity in the left frontal-parietal-occipital regions resulting in a permanent infarction in the primary...
Source: Headache - January 8, 2019 Category: Neurology Authors: Mancini V, Mastria G, Frantellizzi V, Troiani P, Zampatti S, Carboni S, Giardina E, Campopiano R, Gambardella S, Turchi F, Petolicchio B, Toscano M, Liberatore M, Viganò A, Di Piero V Tags: Headache Source Type: research

Risk Stratification of Cardiovascular Events in Very Elderly Patients with Known or Suspected Coronary Artery Disease Who had Normal Single-photon Emission Computed Tomographic Myocardial Perfusion Imaging Findings.
Conclusion The MCV event rate was high in very elderly patients despite their normal SPECT MPI findings at baseline. Therefore, very elderly patients with multivariate risks should be carefully followed to avoid a poor prognosis. PMID: 31366795 [PubMed - as supplied by publisher]
Source: Internal Medicine - August 3, 2019 Category: Internal Medicine Tags: Intern Med Source Type: research

Remote ischemic conditioning for the treatment of ischemic moyamoya disease.
CONCLUSIONS: Remote ischemic conditioning may be beneficial on controlling iMMD-induced ischemic events, relieving symptoms, and improving cerebral perfusion, without incidence of complications in this case series. PMID: 31814317 [PubMed - as supplied by publisher]
Source: CNS Neuroscience and Therapeutics - December 7, 2019 Category: Neuroscience Authors: Ding JY, Shang SL, Sun ZS, Asmaro K, Li WL, Yang Q, Ding YC, Ji XM, Meng R Tags: CNS Neurosci Ther Source Type: research

Left thalamus infarction in the thalamotuberal artery perfusion area causing subcortical diaschisis and transcortical sensory aphasia
The thalamus is related to language function, and some thalamic stroke cases can cause aphasia [1]. However, most previous cases reporting thalamic damage-induced ipsilateral subcortical diaschisis and aphasia were hemorrhagic stroke [1,2]. Only a few left thalamus infarction cases showed cortical hypoperfusion concerned with the aphasia, but no single-photon emission computed tomography (SPECT) or thalamic nucleus data were available [3]. Thus, aphasia pathology due to cortical hypoperfusion following thalamus infarction, especially with respect to thalamic nuclei, is still unknown.
Source: Journal of the Neurological Sciences - January 24, 2020 Category: Neurology Authors: Kosuke Matsuzono, Kohei Furuya, Azusa Karube, Akie Horikiri, Tadashi Ozawa, Takafumi Mashiko, Haruo Shimazaki, Reiji Koide, Ryota Tanaka, Shigeru Fujimoto Tags: Letter to the Editor Source Type: research

Conventional and molecular imaging in sickle cell disease
Conclusions: Central nervous system: About 25% of SCD patients are affected by vascular involvement of central nervous system. CT scan has been used to detect cerebral infarction. Subclinical cranial MRI lesions yield important predictive values as a risk factor of stroke, even when detected in asymptomatic patients. SPECT is a useful technique for early detection of deficits in cerebral perfusion in patients with SCD. Decreases in cerebral perfusions may lead to silent infarction, stroke, or neurocognitive diseases. PET may improve sensitivity in detection of impaired metabolism in the area surrounding a major vessel infa...
Source: Journal of Nuclear Medicine - May 18, 2021 Category: Nuclear Medicine Authors: Taghvaei, R., Sirous, R., Raynor, W., Amanullah, A., Werner, T., Revheim, M.-E., Hoilund-Carlsen, P. F., Alavi, A. Tags: General Clinical Specialties Source Type: research

Diagnostic Value of Vessel Wall Imaging to Determine the Timing of Extracranial ‒Intracranial Bypass for Moyamoya Syndrome Associated with Active Sjögren's Syndrome: A Case Report
Conclusions Our findings emphasize the diagnostic value of contrast-enhanced MR-VWI in monitoring the effect of immunosuppressive therapy for the major cerebral artery vasculitis and in determining the timing of EC–IC bypass as a “rescue” treatment for moyamoya syndrome associated with active Sjögren's syndrome. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Journal of Neurological Surgery Part A: Central European Neurosurgery - May 23, 2023 Category: Neurosurgery Authors: Shindo, Takafumi Ito, Masaki Sugiyama, Taku Okuyama, Tomohiro Kono, Michihito Atsumi, Tatsuya Fujimura, Miki Tags: Case Report Source Type: research

Correlation Between Severity of Carotid Stenosis and Vascular Reserve Measured by Acetazolamide Brain Perfusion Single Photon Emission Computed Tomography
This study examined that relationship. A total of 56 ICAs in 43 patients were included. Computed tomography scan or magnetic resonance imaging showed no evidence of infarction in any of these patients. Both iodine-123-N-isopropyl-p-iodoamphetamine (123IMP)–single photon emission computed tomography (SPECT) in the resting state and 123IMP-SPECT with acetazolamide (ACZ) enhancement were performed. Quantitated cerebral blood flow (CBF) images were acquired with the 123IMP autoradiography technique. The mean CBF without ACZ administration (resting CBF) and CVR in the middle cerebral artery territory were calculated using ste...
Source: Journal of Stroke and Cerebrovascular Diseases - September 9, 2011 Category: Neurology Authors: Noriaki Tomura, Takahiro Otani, Makoto Koga, Koichi Ishiyama Tags: Original Articles Source Type: research

Usefulness of Dual and Fully Automated Measurements of Cerebral Blood Flow during Balloon Occlusion Test of the Internal Carotid Artery
This study was conducted to show the reliability of fully automated quantification of regional cerebral blood flow (rCBF) in balloon occlusion test (BOT) of the internal carotid artery (ICA). We also shows the usefulness of ratio of rCBF during BOT to rCBF at rest (BOT/rest ratio = rCBF during BOT/rCBF at rest) rather than asymmetry index (AI) during BOT (AI = occluded-side rCBF/contralateral rCBF).Methods: In the last 2 years, we performed the BOT on 10 consecutive patients (4 with intracranial aneurysms and 6 with head and neck tumors). During the BOT, mean stump pressure (MSTP) of the ICA was monitored. We measured cere...
Source: Journal of Stroke and Cerebrovascular Diseases - September 20, 2011 Category: Neurology Authors: Takeshi Torigai, Mitsuhito Mase, Takayuki Ohno, Hiroyuki Katano, Yusuke Nisikawa, Keita Sakurai, Shigeru Sasaki, Junko Toyama, Kazuo Yamada Tags: Original Articles Source Type: research

Brain perfusion SPECT provides new insight on neurobiological effects of hyperbaric hyperoxia
This article is protected by copyright. All rights reserved.
Source: Acta Physiologica - June 25, 2013 Category: Physiology Authors: Silvia Morbelli, Dario Arnaldi Tags: Editorial Source Type: research

Diagnostic impact of baseline cerebral blood flow in patients with acute ischemic stroke prior to intravenous recombinant tissue plasminogen activator therapy
Conclusion: These results suggest that rt-PA therapy for patients with severe cerebral perfusion defects may cause SICH and baseline CBF may contribute to identify patients at high risk for SICH after intravenous rt-PA therapy.
Source: Clinical Neurology and Neurosurgery - February 22, 2013 Category: Neurosurgery Authors: Masaki Ito, Tetsuyuki Yoshimoto, Masahito Kawabori, Shin Fujimoto, Tohru Yamauchi, Hideshi Yamaguchi, Kouichi Tokuda, Sadao Kaneko Tags: Original articles Source Type: research