keyword
MENU ▼
Read by QxMD icon Read
search

ischemic mr

keyword
https://www.readbyqxmd.com/read/27914692/sub-or-snub-is-subvalvular-repair-worthwhile-in-severe-ischemic-mitral-regurgitation
#1
EDITORIAL
Tomasz A Timek
No abstract text is available yet for this article.
November 14, 2016: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27908279/co-existing-intracranial-and-extracranial-carotid-artery-atherosclerotic-plaques-and-recurrent-stroke-risk-a-three-dimensional-multicontrast-cardiovascular-magnetic-resonance-study
#2
Yilan Xu, Chun Yuan, Zechen Zhou, Le He, Donghua Mi, Rui Li, Yuanyuan Cui, Yilong Wang, Yongjun Wang, Gaifen Liu, Zhuozhao Zheng, Xihai Zhao
BACKGROUND: As a systemic disease, atherosclerosis commonly affects intracranial and extracranial carotid arteries simultaneously which is defined as co-existing plaques. Previous studies demonstrated that co-existing atherosclerotic diseases are significantly associated with ischemic cerebrovascular events. The aim of this study was to investigate the characteristics of co-existing intracranial and extracranial carotid atherosclerotic plaques and their relationships with recurrent stroke by using 3D multi-contrast magnetic resonance (MR) vessel wall imaging...
December 2, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27902857/quantitative-assessment-of-hyperacute-cerebral-infarction-with-intravoxel-incoherent-motion-mr-imaging-initial-experience-in-a-canine-stroke-model
#3
Qian-Qian Gao, Shan-Shan Lu, Xiao-Quan Xu, Cheng-Jiang Wu, Xing-Long Liu, Sheng Liu, Hai-Bin Shi
PURPOSE: To evaluate the feasibility of intravoxel incoherent motion (IVIM) for the measurement of diffusion and perfusion parameters in hyperacute strokes. MATERIALS AND METHODS: An embolic ischemic model was established with an autologous thrombus in 20 beagles. IVIM imaging was performed on a 3.0 Tesla platform at 4.5 h and 6 h after embolization. Ten b values from 0 to 900 s/mm(2) were fitted with a bi-exponential model to extract perfusion fraction f, diffusion coefficient D, and pseudo-diffusion coefficient D*...
November 30, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27890763/positional-occlusion-of-vertebral-artery-due-to-cervical-spondylosis-as-rare-cause-of-wake-up-stroke-report-of-2-cases
#4
Hirofumi Nishikawa, Fumitaka Miya, Yotaro Kitano, Genshin Mori, Shigetoshi Shimizu, Hidenori Suzuki
BACKGROUND: Positional compression of the vertebral artery (VA) due to cervical spondylosis is an uncommon cause of stroke. We report two cases of cervical spondylosis causing wake-up stroke, which is extremely rare. CASE DESCRIPTION: The first case was a 78-year-old woman who presented with vertigo and vomiting lasting from waking up. Magnetic resonance (MR) images and angiography documented right cerebellar infarction, and stenosis of the right cervical VA. Dynamic angiography revealed that the right VA was occluded when her neck was extended or rotated to the right...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27882082/early-identification-of-hypoxic-ischemic-encephalopathy-by-combination-of-magnetic-resonance-mr-imaging-and-proton-mr-spectroscopy
#5
Lili Guo, Dehang Wang, Genji Bo, Hui Zhang, Weijing Tao, Ying Shi
Brain damage following a perinatal hypoxic-ischemic encephalopathy (HIE) can be diagnosed by different techniques. The aim of the present study was to combine magnetic resonance (MR) imaging with proton MR spectroscopy in HIE diagnosis and to evaluate their correlation with outcome. A prospective observational cohort study was performed between February 2012 and February 2013. Consecutive newborns, 24 full-term neonates with HIE (mild to moderate and severe group) and 5 normal neonates, were included. Two sequential MR studies were performed; a conventional MR imaging for observation in T1 weighted image (WI) and T2WI, and proton MR spectroscopy for observation in the left or right basal ganglia and thalamus...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27881816/hypothermia-treated-neonates-with-hypoxic-ischemic-encephalopathy-optimal-timing-of-quantitative-adc-measurement-to-predict-disease-severity
#6
Yauk K Lee, Alex Penn, Mahesh Patel, Rajul Pandit, Dongli Song, Bo Yoon Ha
To determine the optimal time window for MR imaging with quantitative ADC measurement in neonatal HIE after hypothermia treatment, a retrospective review was performed on consecutive hypothermia-treated term neonates with HIE, with an initial and follow-up MR imaging within the first two weeks of life. Three neuroradiologists categorized each set of MR imaging as normal, mild, moderate or severe HIE based on a consensus review of the serial imaging. The lowest ADC values from the white matter, corpus callosum, and basal ganglia/thalamus were measured...
November 23, 2016: Neuroradiology Journal
https://www.readbyqxmd.com/read/27876083/two-year-clinical-follow-up-of-the-multicenter-randomized-clinical-trial-of-endovascular-treatment-for-acute-ischemic-stroke-in-the-netherlands-mr-clean-design-and-statistical-analysis-plan-of-the-extended-follow-up-study
#7
Lucie A van den Berg, Marcel G W Dijkgraaf, Olvert A Berkhemer, Puck S S Fransen, Debbie Beumer, Hester Lingsma, Charles B M Majoie, Diederik W J Dippel, Aad J van der Lugt, Robert J van Oostenbrugge, Wim H van Zwam, Yvo B W E M Roos
BACKGROUND: MR CLEAN was the first randomized trial to demonstrate the short-term clinical effectiveness of endovascular treatment in patients with acute ischemic stroke caused by large vessel occlusion in the anterior circulation. Several other trials confirmed that endovascular treatment improves clinical outcome at three months. However, limited data are available on long-term clinical outcome. We aimed to estimate the effect of endovascular treatment on functional outcome at two-year follow-up in patients with acute ischemic stroke...
November 22, 2016: Trials
https://www.readbyqxmd.com/read/27871458/eligibility-for-mechanical-thrombectomy-in-acute-ischemic-stroke-a-phase-iv-multi-center-screening-log-registry
#8
Georgios Tsivgoulis, Nitin Goyal, Robert Mikulik, Vijay K Sharma, Aristeidis H Katsanos, Ramin Zand, Prakash R Paliwal, Andromachi Roussopoulou, Ondrej Volny, Abhi Pandhi, Christina Zompola, Lucas Elijovich, Apostolos Safouris, Jason Chang, Andrei V Alexandrov, Anne W Alexandrov
No eligibility screening logs were kept in recent mechanical thrombectomy (MT) RCTs establishing safety and efficacy of endovascular reperfusion therapies for acute ischemic stroke (AIS). We sought to evaluate the potential eligibility for MT among consecutive AIS patients in a prospective international multicenter study. We prospectively evaluated consecutive AIS patients admitted in four tertiary-care stroke centers during a twelve-month period. Potential eligibility for MT was evaluated using inclusion criteria from MR CLEAN & REVASCAT...
December 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27871427/increased-admission-and-fasting-glucose-are-associated-with-unfavorable-short-term-outcome-after-intra-arterial-treatment-of-ischemic-stroke-in-the-mr-clean-pretrial-cohort
#9
E Osei, H M den Hertog, O A Berkhemer, P S S Fransen, Y B W E M Roos, D Beumer, R J van Oostenbrugge, W J Schonewille, J Boiten, A A M Zandbergen, P J Koudstaal, D W J Dippel
BACKGROUND: Limited data are available on the impact of fasting glucose on outcome after intra-arterial treatment (IAT). We studied whether hyperglycemia on admission and impaired fasting glucose (IFG) are associated with unfavorable outcome after IAT in acute ischemic stroke. METHODS: Patients were derived from the pretrial registry of the MR CLEAN-trial. Hyperglycemia on admission was defined as glucose>7.8mmol/L, IFG as fasting glucose>5.5mmol/L in the first week of admission...
December 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27868034/has-moderate-ischemic-mitral-regurgitation-to-be-corrected-analysis-of-a-randomized-trial
#10
COMMENT
Antonio Maria Calafiore, Sotiris Prapas, Walid Abukoudair, Michele Di Mauro
No abstract text is available yet for this article.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27867965/coronary-artery-bypass-grafting-cabg-alone-in-moderate-ischemic-mitral-regurgitation-is-cabg-really-enough
#11
COMMENT
Francesco Nappi, Cristiano Spadaccio
No abstract text is available yet for this article.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27864462/collateral-status-and-tissue-outcome-after-intra-arterial-therapy-for-patients-with-acute-ischemic-stroke
#12
Anna Mm Boers, Ivo Gh Jansen, Olvert A Berkhemer, Albert J Yoo, Hester F Lingsma, Cornelis H Slump, Yvo Bwem Roos, Robert J van Oostenbrugge, Diederik Wj Dippel, Aad van der Lugt, Wim H van Zwam, Henk A Marquering, Charles Blm Majoie
*These authors contributed equally to this work. †A list of all MR CLEAN Investigators is given in Appendix 1Intra-arterial therapy (IAT) for ischemic stroke aims to save brain tissue. Collaterals are thought to contribute to prolonged penumbra sustenance. In this study, we investigate the effect of collateral status on brain tissue salvage with IAT. In 500 patients randomized between IAT and standard care, collateral status was graded from 0 (absent) to 3 (good). Final infarct volumes (FIV) were calculated on post-treatment CT...
November 18, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27856437/quantifying-intracranial-plaque-permeability-with-dynamic-contrast-enhanced-mri-a-pilot-study
#13
P Vakil, A H Elmokadem, F H Syed, C G Cantrell, F H Dehkordi, T J Carroll, S A Ansari
BACKGROUND AND PURPOSE: Intracranial atherosclerotic disease plaque hyperintensity and/or gadolinium contrast enhancement have been studied as imaging biomarkers of acutely symptomatic ischemic presentations using single static MR imaging measurements. However, the value in modeling the dynamics of intracranial plaque permeability has yet to be evaluated. The purpose of this study was to use dynamic contrast-enhanced MR imaging to quantify the contrast permeability of intracranial atherosclerotic disease plaques in symptomatic patients and to compare these parameters against existing markers of plaque volatility using black-blood MR imaging pulse sequences...
November 17, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27856435/impact-of-pial-collaterals-on-infarct-growth-rate-in-experimental-acute-ischemic-stroke
#14
G A Christoforidis, P Vakil, S A Ansari, F H Dehkordi, T J Carroll
BACKGROUND AND PURPOSE: Cerebral infarction evolves at different rates depending on available blood flow suggesting that treatment time windows vary depending on the degree of pial collateral recruitment. This work sought to mathematically model infarct growth and determine whether infarct volume growth can be predicted by angiographic assessment of pial collateral recruitment in an experimental MCA occlusion animal model. MATERIALS AND METHODS: Pial collateral recruitment was quantified by using DSA, acquired 15 minutes following permanent MCA occlusion in 6 canines based on a scoring system (average pial collateral score) and arterial arrival time...
November 17, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27854089/serial-neuroimaging-of-a-patient-with-minor-stroke-due-to-isolated-cortical-vein-thrombosis-and-convexal-subarachnoid-hemorrhage
#15
Pei-Ya Chen, Kun-Eng Lim, Shinn-Kuang Lin
PURPOSE: Convexal subarachnoid hemorrhage (cSAH) comprises less than 5% of cases of nontraumatic SAH and frequently presents as a focal and transient neurological deficits that mimics transient ischemic attack (TIA). Isolated cortical vein thrombosis (ICVT) is rare and accounts for only 6.3% of cerebral venous thrombosis. We present a case of minor stroke due to cSAH secondary to ICVT, and alos put emphasis on the chronological change of those serial imagings. CASE REPORT: An 87-year-old man presented with episodes of numbness and dropping of his left arm, which had lasted for three days...
September 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/27847072/iatrogenic-lesion-of-an-anomalous-circumflex-coronary-artery-during-mitral-surgery
#16
Ana Lopez-Marco, Aidil Syed, Tom Combellack, Dheeraj Mehta
A patient with anomalous coronary circulation presented with non-ST segment elevation myocardial infarction and ischemic mitral regurgitation and underwent mitral valve repair and coronary revascularization. An unexpected tear occurred in the roof of the left atrium, and its subsequent repair caused iatrogenic damage of the anomalous circumflex artery on its abnormal course requiring an extra graft. Early suspicion of the iatrogenic damage to the anomalous artery was the key for good and complete recovery in this case...
December 2016: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/27846845/relationship-between-native-papillary-muscle-t1-time-and-severity-of-functional-mitral-regurgitation-in-patients-with-non-ischemic-dilated-cardiomyopathy
#17
Shingo Kato, Shiro Nakamori, Sébastien Roujol, Francesca N Delling, Shadi Akhtari, Jihye Jang, Tamer Basha, Sophie Berg, Kraig V Kissinger, Beth Goddu, Warren J Manning, Reza Nezafat
BACKGROUND: Functional mitral regurgitation is one of the severe complications of non-ischemic dilated cardiomyopathy (DCM). Non-contrast native T1 mapping has emerged as a non-invasive method to evaluate myocardial fibrosis. We sought to evaluate the potential relationship between papillary muscle T1 time and mitral regurgitation in DCM patients. METHODS: Forty DCM patients (55 ± 13 years) and 20 healthy adult control subjects (54 ± 13 years) were studied...
November 16, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27833170/ischemic-stroke-in-paediatrics-narrative-review-of-the-literature-and-two-cases
#18
Jozef Klucka, Petr Stourac, Roman Stoudek, Michaela Toukalkova, Hana Harazim, Martina Kosinova, Alena Stouracova, Andrej Mrlian, Petr Suk, Jan Malaska
BACKGROUND: Stroke is a rare condition in childhood with an estimated incidence of between 1.3-13/100.000 patients. Clinical manifestation and risk factors for paediatric stroke are different from those of adults. The uncommon incidence, age-associated difference and plethora of clinical symptoms make the diagnosis of such strokes extremely difficult and often delayed. The history and clinical examination should point to diseases or predisposing factors. Neuroimaging (DWI MR) is the golden standard for diagnosis of paediatric stroke and other investigations can be considered according to the clinical condition...
November 10, 2016: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/27827328/clot-burden-score-on-baseline-computerized-tomographic-angiography-and-intra-arterial-treatment-effect-in-acute-ischemic-stroke
#19
Kilian M Treurniet, Albert J Yoo, Olvert A Berkhemer, Hester F Lingsma, Anna M M Boers, Puck S S Fransen, Debbie Beumer, Lucie A van den Berg, Marieke E S Sprengers, Sjoerd F M Jenniskens, Geert J Lycklama À Nijeholt, Marianne A A van Walderveen, Joseph C J Bot, Ludo F M Beenen, René van den Berg, Wim H van Zwam, Aad van der Lugt, Robert J van Oostenbrugge, Diederik W J Dippel, Yvo B W E M Roos, Henk A Marquering, Charles B L M Majoie
BACKGROUND AND PURPOSE: A high clot burden score (CBS) is associated with favorable outcome after intravenous treatment for acute ischemic stroke. The added benefit of intra-arterial treatment might be less in these patients. The aim of this exploratory post hoc analysis was to assess the relation of CBS with neurological improvement and endovascular treatment effect. METHODS: For 499 of 500 patients in the MR CLEAN study (Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands), the CBS was determined...
November 8, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27816333/ischemic-stroke-due-to-hypoperfusion-in-a-patient-with-a-previously-unrecognized-danon-disease
#20
Marco Marino, Olimpia Musumeci, Giuseppe Paleologo, Maria Cucinotta, Alba Migliorato, Carmelo Rodolico, Antonio Toscano
Danon disease, an X-linked multisystemic disorder, is due to deficiency of Lysosome-Associated Membrane Protein 2 (LAMP2). It is usually characterized by hypertrophic cardiomyopathy, mental retardation and skeletal myopathy, sometimes also with atypical features. A 20-year-old man with cognitive impairment was admitted to the Emergency Room because of a sudden chest pain. ECG showed Wolff-Parkinson-White syndrome; echocardiography revealed hypertrophic cardiomyopathy, and, shortly after, he experienced a cardiac arrest followed by an occipital ischemic stroke...
October 5, 2016: Neuromuscular Disorders: NMD
keyword
keyword
40045
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"