keyword
MENU ▼
Read by QxMD icon Read
search

mri in migraine

keyword
https://www.readbyqxmd.com/read/28446645/hypothalamus-as-a-mediator-of-chronic-migraine-evidence-from-high-resolution-fmri
#1
Laura H Schulte, Angie Allers, Arne May
OBJECTIVE: To identify pathophysiologic mechanisms of migraine chronification using a recently standardized protocol for high-resolution brainstem imaging of trigeminal nociceptive stimulation. METHODS: Eighteen episodic migraineurs (EMs), 17 chronic migraineurs (CMs), and 19 healthy controls (HCs) underwent painful ammonia stimulation of the left nostril in a 3T MRI scanner. Functional images were acquired with a brainstem-optimized protocol for high-resolution echo-planar imaging...
April 26, 2017: Neurology
https://www.readbyqxmd.com/read/28446211/spontaneous-migraine-attack-causes-alterations-in-default-mode-network-connectivity-a-resting-state-fmri-case-report
#2
Andrea Edit Edes, Lajos Rudolf Kozak, Mate Magyar, Terezia Zsombok, Gyongyi Kokonyei, Gyorgy Bagdy, Gabriella Juhasz
BACKGROUND: Although migraine is one of the most investigated neurologic disorders, we do not have a perfect neuroimaging biomarker for its pathophysiology. One option to improve our knowledge is to study resting-state functional connectivity in and out of headache pain. However, our understanding of the functional connectivity changes during spontaneous migraine attack is partial and incomplete. CASE PRESENTATION: Using resting-state functional magnetic resonance imaging we assessed a 24-year old woman affected by migraine without aura at two different times: during a spontaneous migraine attack and in interictal phase...
April 26, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28444083/interictal-abnormal-fmri-activation-of-visual-areas-during-a-motor-task-cued-by-visual-stimuli-in-migraine
#3
Adriana Bastos Conforto, Khallil Taverna Chaim, Mario Fernando Prieto Peres, André Leite Gonçalves, Inara Laurindo Siqueira, Maria Angela Maramaldo Barreiros, Edson Amaro
Objective: To assess changes in blood-oxygen-level-dependent activity after light deprivation compared to regular light exposure in subjects with migraine in the interictal state and in controls. Methods: Ten subjects with migraine and ten controls participated in two sessions of functional magnetic resonance imaging. In each session, they performed a finger-tapping task with the right hand, cued by visual stimuli. They were scanned before and after 30 minutes of light deprivation or light exposure...
January 2017: Einstein
https://www.readbyqxmd.com/read/28430860/increased-brainstem-perfusion-but-no-blood-brain-barrier-disruption-during-attacks-of-migraine-with-aura
#4
Anders Hougaard, Faisal M Amin, Casper E Christensen, Samaira Younis, Frauke Wolfram, Stig P Cramer, Henrik B W Larsson, Messoud Ashina
The migraine aura is characterized by transient focal cortical disturbances causing dramatic neurological symptoms that are usually followed by migraine headache. It is currently not understood how the aura symptoms are related to the headache phase of migraine. Animal studies suggest that cortical spreading depression, the likely mechanism of migraine aura, causes disruption of the blood-brain barrier and noxious stimulation of trigeminal afferents leading to activation of brainstem nuclei and triggering of migraine headache...
April 18, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28407777/automatic-migraine-classification-via-feature-selection-committee-and-machine-learning-techniques-over-imaging-and-questionnaire-data
#5
Yolanda Garcia-Chimeno, Begonya Garcia-Zapirain, Marian Gomez-Beldarrain, Begonya Fernandez-Ruanova, Juan Carlos Garcia-Monco
BACKGROUND: Feature selection methods are commonly used to identify subsets of relevant features to facilitate the construction of models for classification, yet little is known about how feature selection methods perform in diffusion tensor images (DTIs). In this study, feature selection and machine learning classification methods were tested for the purpose of automating diagnosis of migraines using both DTIs and questionnaire answers related to emotion and cognition - factors that influence of pain perceptions...
April 13, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28395426/-analysis-of-the-clinical-features-of-vestibular-migraine-with-mri-changes
#6
F Qiu, D D Song, Q F Guo, Q Q Wang, Z W Wang, J G Liu, Y Y Wang, X K Qi
Objective: To investigate the clinical features of vestibular migraine with MRI changes. Methods: The clinical data of 150 patients with vestibular migraine completing MRI examination in navy general hospital from August 2008 to August 2016 were retrospectively analyzed.Clinical features of 94 (62.7%) vestibular migraine patients with MRI changes were collected and analyzed according to the medical history, clinical symptoms and signs, as well as the result of auxiliary examinations. Results: The manifestations of MRI in vestibular migraine patients were mainly multiple punctate equal T(1) and long T(2) signals or high signals on FLAIR (fluid attenuated inversion recovery) in subcortical white matter...
April 11, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28385084/iron-in-deep-brain-nuclei-in-migraine-camera-follow-up-mri-findings
#7
Inge H Palm-Meinders, Hille Koppen, Gisela M Terwindt, Lenore J Launer, Mark A van Buchem, Michel D Ferrari, Mark C Kruit
Introduction In the CAMERA population-based MRI study, migraineurs below the age of 50 had decreased T2-values indicative of increased iron deposition in several deep brain nuclei. Longer migraine history was associated with lower T2-values, suggesting an association between migraine attacks and iron accumulation. In the present nine-year follow-up study of the CAMERA cohort we re-measured the T2-values in deep brain nuclei to assess the evolution over time. Methods Baseline and follow-up T2-values measured in several basal ganglia of 128 participants (38 control, 90 migraine) were analyzed using quantitative T2 measurements and multivariate regression analysis...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28382614/migraine-with-multiple-sensory-auras
#8
Nicodemus E Oey, Yew Long Lo
Migraine auras are typically visual in nature but can manifest as disturbances in somatosensory, auditory, and olfactory senses. Reports of multiple sensory auras are rare in the literature, but their existence may offer novel insights into the pathogenesis of this highly common yet complex neurological condition. Here we report a case of multiple sensory auras involving somatosensory, auditory, and olfactory disturbances in a patient with migraine without visual manifestations. A 45-year-old woman with a 20-year history of migrainous headaches presented with complaints of rightsided facial and hand numbness and paraesthesia...
December 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/28372496/prospective-testing-of-ichd-3-beta-diagnostic-criteria-for-migraine-with-aura-and-migraine-with-typical-aura-in-patients-with-transient-ischemic-attacks
#9
Elena R Lebedeva, Natalia M Gurary, Denis V Gilev, Jes Olesen
Introduction The International Classification of Headache Disorders 3rd edition beta (ICHD-3 beta) gave alternative diagnostic criteria for 1.2 migraine with aura (MA) and 1.2.1 migraine with typical aura (MTA) in the appendix. The latter were presumed to better differentiate transient ischemic attacks (TIA) from MA. The aim of the present study was to field test that. Methods Soon after admission, a neurologist interviewed 120 consecutive patients diagnosed with TIA after MRI or CT. Semi-structured interview forms addressed all details of the TIA episode and all information necessary to apply the ICHD-3beta diagnostic criteria for 1...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28359726/migraine-a-look-down-the-nose
#10
Thomas Muehlberger, Justin C R Wormald, Nadine Hachach-Haram, Afshin Mosahebi
BACKGROUND: Studies have suggested that contact between opposing mucosal surfaces in the nasal wall and cavity can be a target of the surgical treatment of migraines. Unfortunately, not enough is known about the role of nasal pathology in the pathogenesis of this condition. The co-existence of further rhinological disorders can be an impediment to defining the cause and effect of anatomical variants. The authors compared the MRI scans of migraine- and non-migraine patients (MPs and NMPs, respectively) to determine the prevalence of such mucosal contact points in order to extrapolate whether there is a significant association with migraines...
March 7, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28327977/the-ethics-of-choosing-wisely-the-use-of-neuroimaging-for-uncomplicated-headache
#11
David J Cote, Edward R Laws
The use of magnetic resonance imaging (MRI) for evaluation of headache remains excessive among physicians across many specialties according to both the American Headache Society and the American College of Radiology, despite recent attempts at limiting overuse of imaging and procedures. As part of the Choosing Wisely campaign, both of these organizations have explicitly recommended against imaging in patients with uncomplicated or typical migraine headaches. Yet, the practice nevertheless remains prevalent, with estimates ranging from 12...
February 20, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28302242/vanishing-white-matter-vwm-disease-presenting-as-neuro-ovarian-failure
#12
Abidullah Khan, Mohammad Humayun, Maimoona Ayub, Iqbal Haider, Fahad Ajmal, Syed Saad Shah
A 19-year girl was admitted with a one-month history of worsening spastic paraparesis, cerbellar ataxia, visual decline and worsening headaches on a background of walking difficulty, progressive quadriparesis and migraine since the age of 10 years. She had no sensory loss, and cranial nerves examination was notable for optic atrophy with crescent formation only. She had primary amenorrhea and underdeveloped secondary sexual characteristics. Ultrasonograhic studies of the pelvis confirmed small ovaries, and uterus...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28281108/recognizing-cadasil-a-secondary-cause-of-migraine-with-aura
#13
REVIEW
John Glenn Burkett, Carrie Dougherty
PURPOSE OF REVIEW: CADASIL (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy) is an important disease to consider in the differential diagnosis of migraine with aura. This review examines current literature regarding migraine in CADASIL, as well as diagnostic and treatment modalities. RECENT FINDINGS: Recent studies have shown that smoking is a modifiable risk factor for progression of CADASIL (Chabriat et al. in Stroke 47:4-11, 2015)...
April 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28276083/site-locked-headaches-in-paediatric-patients-do-not-require-routine-brain-imaging-and-rarely-have-a-serious-aetiology
#14
Mas Ahmed, S Grossman, B Rafique, A Momoh Ojewuyi
AIM: The main aim of this study was to examine the aetiology and the yield of brain imaging of children with site locked headaches (SLH). METHODS: This study was carried out at Queen's University Hospital, Essex, UK, from August 2011 to August 2015 and focused on patients who were at least five years of age, had experienced at least five SLH attacks and had a normal neurological examination. Bilateral or alternating unilateral headaches were excluded. Data were collected prospectively, and the headache diagnosis was based on the International Classification of Headache Disorders...
January 11, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28275284/imaging-aspects-of-palatal-torus-in-cone-beam-computed-tomography-and-magnetic-resonance-case-report
#15
Vivian Narana Ribeiro El Achkar, Sérgio Lucio Pereira de Castro Lopes, Antonione Santos Bezerra Pinto, Renata Falchete do Prado, Estela Kaminagakura
The torus palatinus is a unilocular or multilocular exostosis that occurs in the midline of the hard palate. It is considered a common clinical finding. Magnetic resonance imaging (MRI) is not commonly used in dentistry and descriptions of the torus by this imaging method are therefore rare in the literature. This case study reports on a female patient referred to the dentist to elucidate a bone enlargement detected by MRI, which was requested by the physician who accompanied the patient for migraine treatment...
December 2016: Acta Stomatologica Croatica
https://www.readbyqxmd.com/read/28254515/hereditary-cerebral-small-vessel-disease-and-stroke
#16
REVIEW
Christian Baastrup Søndergaard, Jørgen Erik Nielsen, Christine Krarup Hansen, Hanne Christensen
Cerebral small vessel disease is considered hereditary in about 5% of patients and is characterized by lacunar infarcts and white matter hyperintensities on MRI. Several monogenic hereditary diseases causing cerebral small vessel disease and stroke have been identified. The purpose of this systematic review is to provide a guide for determining when to consider molecular genetic testing in patients presenting with small vessel disease and stroke. CADASIL, CARASIL, collagen type IV mutations (including PADMAL), retinal vasculopathy with cerebral leukodystrophy, Fabry disease, hereditary cerebral hemorrhage with amyloidosis, and forkhead box C1 mutations are described in terms of genetics, pathology, clinical manifestation, imaging, and diagnosis...
April 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28240389/increased-intrinsic-brain-connectivity-between-pons-and-somatosensory-cortex-during-attacks-of-migraine-with-aura
#17
Anders Hougaard, Faisal Mohammad Amin, Henrik B W Larsson, Egill Rostrup, Messoud Ashina
The neurological disturbances of migraine aura are caused by transient cortical dysfunction due to waves of spreading depolarization that disrupt neuronal signaling. The effects of these cortical events on intrinsic brain connectivity during attacks of migraine aura have not previously been investigated. Studies of spontaneous migraine attacks are notoriously challenging due to their unpredictable nature and patient discomfort. We investigated 16 migraine patients with visual aura during attacks and in the attack-free state using resting state fMRI...
February 27, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28228831/retinal-nerve-fibre-layer-thickness-of-migraine-patients-with-or-without-white-matter-lesions
#18
Ilke Bahceci Simsek
The aim of this study was to determine whether retinal nerve fibre layer (RNFL) thickness is correlated with cerebral white matter lesions (WML) in migraine patients. Forty migraine and 40 healthy subjects were included in this study. The difference in RNFL thickness between the control and a migraine group with WML and a migraine group without WML were investigated using analysis of variance (ANOVA). A Tukey post hoc test was conducted to determine from which group the difference originated. Lower RNFL thicknesses were observed in the migraine patient group where WML was detected using magnetic resonance imaging (MRI), compared with the control group and with the migraine group with no WML...
February 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28223480/in-vivo-imaging-reveals-that-pregabalin-inhibits-cortical-spreading-depression-and-propagation-to-subcortical-brain-structures
#19
Stuart M Cain, Barry Bohnet, Jeffrey LeDue, Andrew C Yung, Esperanza Garcia, John R Tyson, Sascha R A Alles, Huili Han, Arn M J M van den Maagdenberg, Piotr Kozlowski, Brian A MacVicar, Terrance P Snutch
Migraine is characterized by severe headaches that can be preceded by an aura likely caused by cortical spreading depression (SD). The antiepileptic pregabalin (Lyrica) shows clinical promise for migraine therapy, although its efficacy and mechanism of action are unclear. As detected by diffusion-weighted MRI (DW-MRI) in wild-type (WT) mice, the acute systemic administration of pregabalin increased the threshold for SD initiation in vivo. In familial hemiplegic migraine type 1 mutant mice expressing human mutations (R192Q and S218L) in the CaV2...
February 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28220492/magnetic-resonance-imaging-of-intratympanic-gadolinium-helps-differentiate-vestibular-migraine-from-m%C3%A3-ni%C3%A3-re-disease
#20
Wenfang Sun, Ping Guo, Tongli Ren, Wuqing Wang
OBJECTIVES/HYPOTHESIS: To study the differential diagnosis of vestibular migraine (VM) and Ménière disease (MD) by using magnetic resonance imaging (MRI) of intratympanic gadolinium. STUDY DESIGN: Prospective cohort study. METHODS: Definite MD patients (n = 30) and definite or probable VM patients (n = 30) were included, and the two groups were age and sex matched. Three-dimensional real inversion recovery (3D-real-IR) MRI was performed 24 hours after bilateral intratympanic gadolinium to assess the presence and degree of endolymphatic hydrops (EH)...
February 21, 2017: Laryngoscope
keyword
keyword
52372
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"