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Find video protocols related to scientific articles indexed in Pubmed.
Endovascular coil embolization of aneurysm neck for the treatment of ruptured intracranial aneurysm with bleb formation.
Med. Sci. Monit.
PUBLISHED: 07-03-2014
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Ruptured intracranial aneurysm (ICA) with bleb formation (RICABF) is a special type of ruptured ICA. However, the exact role and effectiveness of endovascular coil embolization (ECE) in RICABF is unknown. We aimed to investigate the effectiveness and safety of ECE of aneurysm neck for RICABF treatment.
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Neuroradiological features of papillary glioneuronal tumor: a study of 8 cases.
J Comput Assist Tomogr
PUBLISHED: 06-01-2014
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The purpose of this study was to characterize the magnetic resonance imaging (MRI), and computed tomographic (CT) findings in a series of 8 patients with papillary glioneuronal tumor (PGNT).
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Diffusion-weighted imaging of the sellar region: a comparison study of BLADE and single-shot echo planar imaging sequences.
Eur J Radiol
PUBLISHED: 03-07-2014
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The purpose of this study is to compare BLADE diffusion-weighted imaging (DWI) with single-shot echo planar imaging (EPI) DWI on the aspects of feasibility of imaging the sellar region and image quality.
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Association of radiologic findings with mortality in patients with avian influenza H7N9 pneumonia.
PLoS ONE
PUBLISHED: 01-01-2014
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The novel H7N9 virus causes severe illness, including pneumonia and acute respiratory distress syndrome, with high rates of mortality. We investigated the association of initial radiologic characteristics obtained at admission with clinical outcomes in patients with avian influenza H7N9 pneumonia.
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Value of perfusion computed tomography in acute ischemic stroke: diagnosis of infarct core and penumbra.
J Comput Assist Tomogr
PUBLISHED: 09-19-2013
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This study aimed to perform an evaluation of 4 perfusion computed tomographic (PCT) parameters (relative cerebral blood flow, cerebral blood volume, mean transit time [MTT], and delay time [DT]) in a series of patients with acute ischemic stroke to find optimal parameters to predict infarct core and penumbra.
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Low-grade and anaplastic oligodendrogliomas: differences in tumour microvascular permeability evaluated with dynamic contrast-enhanced magnetic resonance imaging.
J Clin Neurosci
PUBLISHED: 05-11-2013
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This study was designed to quantitatively assess the microvascular permeability of oligodendroglioma using the volume transfer constant (K(trans)) and the volume of the extravascular extracellular space per unit volume of tissue (V(e)) with dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). We aimed to evaluate the effectiveness of K(trans) and V(e) in distinguishing between low-grade and anaplastic oligodendroglioma. The maximal values of K(trans) and V(e) for 65 patients with oligodendroglioma (27 grade II, 38 grade III) were obtained. Differences in K(trans) and V(e) between the two groups were analysed using the Mann-Whitney rank-sum test. Receiver operating characteristic (ROC) curve analyses were performed to determine the cut-off values for the K(trans) and Ve that could differentiate between low-grade and anaplastic oligodendrogliomas. Values for K(trans) and Ve in low-grade oligodendrogliomas were significantly lower than those in anaplastic oligodendrogliomas (p < 0.001 and p < 0.001, respectively). ROC curve analysis showed that cut-off values of the K(trans) (0.037 min(-1)) and Ve (0.079) could be used to distinguish between low-grade and anaplastic oligodendrogliomas in a statistically significant manner. Our results suggest that DCE-MRI can distinguish the differences in microvascular permeability between low-grade and anaplastic oligodendrogliomas.
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An approach to the development of interstitial lung disease in dermatomyositis: a study of 230 cases in China.
J. Int. Med. Res.
PUBLISHED: 02-21-2013
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: To study the clinical features of interstitial lung disease (ILD) in patients with dermatomyositis and factors related to its development.
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Whole-brain CT perfusion and CT angiography assessment of Moyamoya disease before and after surgical revascularization: preliminary study with 256-slice CT.
PLoS ONE
PUBLISHED: 01-24-2013
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The 256-slice CT enables the entire brain to be scanned in a single examination. We evaluated the application of 256-slice whole-brain CT perfusion (CTP) in determining graft patency as well as investigating cerebral hemodynamic changes in Moyamoya disease before and after surgical revascularization.
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Comparison of CT perfusion parameters and microvessel density in intracranial hemangiopericytomas with peritumoral edema.
Br J Neurosurg
PUBLISHED: 11-18-2011
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Intracranial hemangiopericytomas (HPCs) are rare, and they have a tendency for local recurrence and metastases. The purpose of this study was to evaluate the relationship between CT perfusion (CTP) parameters and microvessel density (MVD) of HPCs and compare CTP parameters in parenchyma and peritumoral edema of HPCs.
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A modified rabbit model of carotid atherosclerotic plaque suitable for the stroke study and MRI evaluation.
Int. J. Neurosci.
PUBLISHED: 09-08-2011
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In order to induce a modified rabbit model of carotid atherosclerotic plaque suitable for the stroke study and to evaluate the lesion with magnetic resonance imaging (MRI). Eight rabbits of group A were fed with high-fat diet only. Atherosclerosis at the right common carotid artery was induced in rabbits of group B (n = 12) by high-fat diet and balloon catheter injury to the endothelium 4 weeks later. The rabbits were examined in vivo with a 1.5-T MRI. After 4 weeks on the high-fat diet, the serum lipid levels were markedly increased, which became significantly higher than the baseline levels. The lesions on both MRI and histology were remarkable. One week after balloon injury, the signal of injured right common carotid was higher on all the contrast-weighted images than the left side. The extent of abnormal signal was reduced 9 weeks after balloon injury. Hemorrhage was detected on all the contrast-weighted images. In conclusion, the rabbit model established by the authors is such a feasible one to the study of stroke caused by carotid atherosclerosis.
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Intracranial epithelioid hemangioendothelioma: an unusual CTA finding in one case.
Br J Neurosurg
PUBLISHED: 03-18-2010
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Intracranial epithelioid hemangioendothelioma (EH) is a rare neoplasm in the central nervous system. The authors describe a case of EH arising from the tentorium in a 57-year-old woman. A review of the literature showed that this was the first case report of computed tomographic angiography findings of EH.
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Effects of antidepressant treatment on N-acetyl aspartate and choline levels in the hippocampus and thalami of post-stroke depression patients: a study using (1)H magnetic resonance spectroscopy.
Psychiatry Res
PUBLISHED: 03-15-2010
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Previous studies in patients with a major depressive disorder show functional abnormalities in the medial frontal cortex. Functional and structural abnormalities in patients with post-stroke depression (PSD) are not well studied. The major goals of this study were to determine the biochemical abnormalities that occur in PSD and to assess the effect of antidepressants in patients with PSD at the biochemical level. We used magnetic resonance imaging to detect structural or functional abnormalities in PSD patients. In a prospective study, we included 30 patients with PSD and 20 age-matched subjects as controls. Magnetic resonance spectroscopy (MRS) of the brain was conducted in all subjects at the beginning of the study. Patients with PSD were treated with the antidepressant paroxetine (20-40mg/days) for 6 months. After the 6-month period, all PSD subjects underwent MRS again. PSD patients were evaluated with the Hamilton Depression Scale (HAMD) both before and after treatment with the antidepressant. The mean age of the PSD patients was 70.0+/-4.2 years and that of the controls was 67.2+/-5.4 years. Before treatment, N-acetyl aspartate/creatine (NAA/Cr) ratios in the bilateral hippocampus and thalami were significantly lower in PSD patients than in controls. Choline/creatine (Cho/Cr) ratios were significantly higher in the bilateral hippocampus and left thalamus in PSD patients than in controls. The Cho/Cr ratios were significantly higher in the left thalamus than in the right in PSD patients. The HAMD scores were significantly correlated with the Cho/Cr ratios in the left and right hippocampus. Compared with PSD patients before antidepressant treatment, the PSD subjects after treatment had significantly higher NAA/Cr ratios in the left hippocampus and bilateral thalami. They had significantly lower Cho/Cr ratios in bilateral hippocampus and left thalamus. Our study suggests that metabolic abnormalities in the hippocampus and thalamus are implicated in PSD. Antidepressants may alter the local metabolic abnormalities in these areas.
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Quantitative analysis of neovascular permeability in glioma by dynamic contrast-enhanced MR imaging.
J Clin Neurosci
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This study was designed to quantitatively analyse neovascular permeability in glioma by dynamic contrast-enhanced MRI (DCE-MRI). Forty-four patients with glioma were included in this study. The highest value of volume transfer constant (K(trans)) and volume of extravascular extracellular space per unit volume of tissue (V(e)) were obtained and the differences in K(trans) and V(e) between low-grade glioma (LGG) and high-grade glioma (HGG) were analyzed. The correlations between K(trans), V(e) and glioma grade were performed. Receiver operating characteristic (ROC) curve analyses were conducted. The values of K(trans) and V(e) of LGG were significantly lower than those of HGG. The correlation analysis demonstrated statistically significant relationships between K(trans) and glioma grade, between V(e) and glioma grade, and between K(trans) and V(e). The ROC curve analyses of K(trans) (0.035/min) and V(e) (0.130) for differentiating LGG from HGG were statistically significant. Thus, DCE-MRI can be used to estimate neovascular permeability and for pre-operative grading of glioma.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.