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Condition: Headache
Procedure: Perfusion

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Total 90 results found since Jan 2013.

Acute Intravenous Calcium Antagonist for Suspected Hemiplegic Migraine – A Case Story
We present a 28-year-old woman with a suspected hemiplegic migraine attack with left-sided hemiparalysis. Brain CT with perfusion imaging 1 h 54 min after symptom onset revealed hypoperfusion in the right hemisphere. The patient was treated with intravenous recombinant tissue plasminogen activator (rtPA) with no effect. After a subsequent intravenous verapamil infusion, the patient gained full motor function within 10 min. Brain magnetic resonance imaging (MRI) performed 5 h 46 min after symptom onset revealed diffusion restriction in the same area as the hypoperfusion on CT. There were no notable changes on T2 images. The...
Source: Case Reports in Neurology - May 5, 2017 Category: Neurology Source Type: research

Recurrent transient hemiparesis and a novel ATP1A2 mutation (P3.220)
Conclusions:This case identifies a novel, potentially pathogenic mutation of the ATP1A2 gene corresponding to a phenotype of a rare migraine variant and contributes to our evolving understanding of migraine molecular genetics and pathophysiology.Study Supported by:Disclosure: Dr. Stredny has nothing to disclose. Dr. Winden has nothing to disclose. Dr. Danehy has nothing to disclose. Dr. Robertson has nothing to disclose. Dr. Trenor has nothing to disclose. Dr. Rivkin has nothing to disclose. Dr. Lehman has nothing to disclose. Dr. Bernson-Leung has nothing to disclose.
Source: Neurology - April 17, 2017 Category: Neurology Authors: Stredny, C., Winden, K., Danehy, A., Robertson, R., Trenor, C., Rivkin, M., Lehman, L., Bernson-Leung, M. Tags: Child Neurology I Source Type: research

Giant-Cell Arteritis Presenting as Isolated Bilateral CN-VI Palsies: A Rare Case Report of a 65 Year Male. (P2.378)
Conclusions:GCA is the most prevalent systemic vasculitis in the elderly. It can present with a wide variety of symptoms ranging from fatigue, headache, visual loss, and even stroke. However as noted in this case, isolated CN-VI palsy can be a very rare, early manifestation of GCA. As GCA responds well to corticosteroid therapy, prompt diagnosis and treatment is critical to prevent and/or limit neurologic sequelae. As highlighted by this case, in the event of recurrent incidents and absence of other diagnosis; GCA should be considered even if headache is absent.Disclosure: Dr. Lunagariya has nothing to disclose. Dr. Patel ...
Source: Neurology - April 17, 2017 Category: Neurology Authors: Lunagariya, A., Patel, U., Kotadiya, F., Wilson, C. Tags: CNS Inflammatory Diseases and Differential Diagnosis II Source Type: research

Hypoperfusion, vascular pruning, and transient hemiparesis mimicking stroke in transient erythroblastopenia of childhood (P4.161)
Conclusions:The patient’s transient cerebrovascular and electrophysiologic abnormalities are consistent with those described in the literature for hemiplegic migraine. However, he did not meet International Headache Society criteria for hemiplegic migraine, such as headache with presentation or recurrent events. We hypothesize that transient vascular narrowing and resultant hypoperfusion, compounded by cerebral hypoxia from significant anemia, may explain the transient neurologic symptoms concurrent with anemia in TEC.Disclosure: Dr. Calahan has nothing to disclose. Dr. Lehman has nothing to disclose. Dr. Rivkin has ...
Source: Neurology - April 17, 2017 Category: Neurology Authors: Calahan, C., Lehman, L., Rivkin, M., Lipton, J., Danehy, A., Robertson, R., Ozuah, N., Trenor, C., Bernson-Leung, M. Tags: Child Neurology II Source Type: research

Role of atherosclerosis, clot extent, and penumbra volume in headache during ischemic stroke
Conclusions: Headache in the early phase of ischemic stroke tends to occur less often in patients with atherosclerosis than in patients without atherosclerosis in the large cerebral arteries. This finding lends support to the hypothesis that vessel wall elasticity is a necessary contributing factor in the occurrence of headache during acute ischemic stroke.
Source: Neurology - September 11, 2016 Category: Neurology Authors: van Os, H. J. A., Mulder, I. A., van der Schaaf, I. C., Kappelle, L. J., Velthuis, B. K., Broersen, A., Vos, J. A., Terwindt, G. M., Schonewille, W., Ferrari, M. D., Algra, A., van Walderveen, M. A. A., Wermer, M. J. H. Tags: All Headache, CT, All Clinical Neurology, All Cerebrovascular disease/Stroke, Infarction ARTICLE Source Type: research

Chapter 65 Indications for the performance of neuroimaging in children
Publication date: 2016 Source:Handbook of Clinical Neurology, Volume 136 Author(s): Fenella Jane Kirkham Pediatric neurology relies on ultrasound, computed tomography (CT), and magnetic resonance (MR) imaging. CT prevails in acute neurologic presentations, including traumatic brain injury (TBI), nontraumatic coma, stroke, and status epilepticus, because of easy availability, with images of diagnostic quality, e.g., to exclude hemorrhage, usually completed quickly enough to avoid sedation. Concerns over the risks of ionizing radiation mean re-imaging and higher-dose procedures, e.g., arteriography and venography, require...
Source: Handbook of Clinical Neurology - July 16, 2016 Category: Neurology Source Type: research

The syndrome of transient headache and neurological deficits with cerebrospinal fluid lymphocytosis mimicking an acute stroke
ConclusionsThe decision to thrombolyse or perform an LP in HaNDL patients mimicking a stroke is difficult in the acute setting. Perfusion CT can provide misleading results and CTA may be useful in ruling out occlusion of a cerebral vessel.
Source: European Journal of Neurology - April 22, 2016 Category: Neurology Authors: M. Guillan, A. DeFelipe‐Mimbrera, A. Alonso‐Canovas, M. C. Matute, R. Vera, A. Cruz‐Culebras, N. Garcia‐Barragan, J. Masjuan Tags: Original Article Source Type: research

Cerebral Hyperperfusion in a Child with Stroke-Like Migraine Attacks after Radiation Therapy Syndrome
We report an 11-year-old girl with a primary diagnosis of medulloblastoma presented with acute-onset severe headache and left-sided weakness, 20 months after completing cranial radiotherapy. MRI demonstrated unilateral cortical swelling and concomitant leptomeningeal, gyral contrast enhancement, and MR perfusion imaging showed increased cortical perfusion in the right temporo-parieto-occipital region. Her symptoms resolved spontaneously over several days.SMART syndrome appears to be a reversible, long-term complication of cranial radiotherapy. So far, a limited number of pediatric patients with SMART syndrome have been rep...
Source: Neuropediatrics - April 21, 2016 Category: Neurology Authors: Ardicli, DidemGocmen, RahsanOguz, Kader K.Varan, AliYalnizoglu, Dilek Tags: Short Communication Source Type: research

Unique CT Perfusion Imaging in a Case of HaNDL: New Insight into Pathophysiology of Acute Attacks (P4.114)
Conclusions: The pattern of global left hemispheric hypoperfusion seen in this case supports previous hypotheses of secondary oligemia induced by a hemispheric wave of cortical spreading depression (CSD). However, the right ACA territory hypoperfusion represents a phenomenon never previously reported in this field. We speculate that the secondary vasomotor changes induced by CSD in the left hemisphere, spread to the right hemisphere via the anomalous vascular supply. Such a mechanism of direct vascular propagation through vessel gap junctions has been described in animal studies. This unique case provides a valuable contri...
Source: Neurology - April 3, 2016 Category: Neurology Authors: Burke, M., Lamb, M., Hohol, M., Lay, C. Tags: Headache: Imaging and Other 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

Pseudotumoral presentation of cerebral amyloid angiopathy-related inflammation
Conclusion: The identification of one or several nonenhancing space-occupying lesions, especially in elderly patients presenting with cognitive impairment, should raise suspicion for the pseudotumoral presentation of CAA-I and lead to T2*-GRE sequences. Perfusion MRI and MRS appear to be useful techniques for the differential diagnosis of this entity.
Source: Neurology - March 7, 2016 Category: Neurology Authors: Ronsin, S., Deiana, G., Geraldo, A. F., Durand-Dubief, F., Thomas-Maisonneuve, L., Formaglio, M., Desestret, V., Meyronet, D., Nighoghossian, N., Berthezene, Y., Honnorat, J., Ducray, F. Tags: MRI, MRS, Other cerebrovascular disease/ Stroke, Primary brain tumor ARTICLE Source Type: research

Perfusion and pH MRI in familial hemiplegic migraine with prolonged aura
Discussion During prolonged aura in FHM, MRI shows reduced CBF, capillary flow disturbances and a possible pH drop that could indicate tissue hypoxia.
Source: Cephalalgia - February 24, 2016 Category: Neurology Authors: Blicher, J. U., Tietze, A., Donahue, M. J., Smith, S. A., Ostergaard, L. Tags: Brief Reports Source Type: research

Cerebral perfusion in stroke-like migraine attacks after radiation therapy syndrome
We present 2 patients with recurrent attacks of SMART syndrome with increased cerebral blood volume in affected regions and abnormal vascular reactivity on transcranial Doppler ultrasound, suggesting a potential mechanism.
Source: Neurology - February 22, 2016 Category: Neurology Authors: Olsen, A. L., Miller, J. J., Bhattacharyya, S., Voinescu, P. E., Klein, J. P. Tags: MRI, All Clinical Neurology, All Cerebrovascular disease/Stroke, Radiation therapy-tumor CLINICAL/SCIENTIFIC NOTES Source Type: research

Management of moyamoya syndrome in patients with Noonan syndrome
We report four cases of Noonan syndrome patients presenting with headaches and/or sensorimotor strokes in childhood that caused unilateral sensorimotor impairment. Cerebral angiography and MRI revealed bilateral moyamoya syndrome. All patients underwent successful bilateral extracranial-to-intracranial revascularization. The first patient was a 10-year-old girl who presented following a hemorrhagic stroke and recovered well after indirect bypass. The second patient was an adult with a history of childhood stroke whose symptoms progressed in adulthood. She underwent a direct bypass and improved, but continued to experience ...
Source: Journal of Clinical Neuroscience - January 11, 2016 Category: Neuroscience Source Type: research

Cerebral hyperperfusion on arterial spin labeling MRI during CADASIL migrainous encephalopathy
Migrainous encephalopathy is a rare and poorly understood manifestation of the inherited vasculopathy cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL). Patients may present with migraine with aura, complicated by confusion, fever, and decreased conscious level.1 In this case, a patient with migrainous encephalopathy underwent cerebral perfusion imaging with arterial spin labeling (ASL) MRI before, during, and following admission.
Source: Neurology - December 14, 2015 Category: Neurology Authors: Moreton, F. C., Santosh, C., McArthur, K., Muir, K. W. Tags: Migraine, MRI, All Cerebrovascular disease/Stroke, CADASIL CLINICAL/SCIENTIFIC NOTES Source Type: research