scholarly journals MRI with intrathecal MRI gadolinium contrast medium administration: a possible method to assess glymphatic function in human brain

2015 ◽  
Vol 4 (11) ◽  
pp. 205846011560963 ◽  
Author(s):  
Per Kristian Eide ◽  
Geir Ringstad
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebrospinal Fluid ◽  
Human Brain ◽  
Contrast Medium ◽  
Intrathecal Administration ◽  
Brain Metabolites ◽  
Resonance Imaging ◽  
Gadolinium Contrast ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain

Recently, the “glymphatic system” of the brain has been discovered in rodents, which is a paravascular, transparenchymal route for clearance of excess brain metabolites and distribution of compounds in the cerebrospinal fluid. It has already been demonstrated that intrathecally administered gadolinium (Gd) contrast medium distributes along this route in rats, but so far not in humans. A 27-year-old woman underwent magnetic resonance imaging (MRI) with intrathecal administration of gadobutrol, which distributed throughout her entire brain after 1 and 4.5 h. MRI with intrathecal Gd may become a tool to study glymphatic function in the human brain.

scholarly journals Utility of PCR Assay in Diagnosis of En-Plaque Tuberculoma of the Brain

1999 ◽  
Vol 37 (2) ◽  
pp. 467-470 ◽  
Author(s):  
K. K. Singh ◽  
M. D. Nair ◽  
K. Radhakrishnan ◽  
J. S. Tyagi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebrospinal Fluid ◽  
Resonance Imaging ◽  
Pcr Assay ◽  
Mri Findings ◽  
Antitubercular Drugs ◽  
Specific Pcr ◽  
Specific Pcr Assay ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain

This is the first report of a case in which diagnosis of en-plaque tuberculoma on the basis of magnetic resonance imaging (MRI) findings was confirmed by a Mycobacterium tuberculosiscomplex-specific PCR assay of cerebrospinal fluid. The accuracy of the diagnosis was supported by good response to antitubercular drugs, which was shown by repeat MRI studies performed after treatment.

scholarly journals Effectiveness of low-field magnetic resonance imaging in diagnosing brachial plexus tumours in dogs – short communication

2015 ◽  
Vol 59 (2) ◽  
pp. 317-319
Author(s):  
Zbigniew Adamiak ◽  
Yauheni Zhalniarovich ◽  
Paulina Przyborowska ◽  
Joanna Głodek ◽  
Adam Przeworski
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brachial Plexus ◽  
Resonance Imaging ◽  
Gadolinium Contrast ◽  
Gadolinium Contrast Agent ◽  
Low Field ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri ◽  
Brachial Plexus Tumours

AbstractThe aim of the study was to identify magnetic resonance imaging (MRI) sequences that contribute to a quick and reliable diagnosis of brachial plexus tumours in dogs. The tumours were successfully diagnosed in 6 dogs by the MRI with the use of SE, FSE, STIR, Turbo 3 D, 3D HYCE, and GE sequences and the gadolinium contrast agent

scholarly journals 876 Disorders of the Brain Revealed by Magnetic Resonance Imaging (MRI) in Infants with Severe Congenital Cytomegaly

2010 ◽  
Vol 68 ◽  
pp. 440-440
Author(s):  
B Milewska-Bobula ◽  
B Lipka ◽  
J Zebrowska ◽  
E Jurkiewicz ◽  
I Pakula-Kosciesza ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain

Cerebral schistosomiasis: MRI features with pathological correlation

2020 ◽  
pp. 028418512093447
Author(s):  
Chun-yan Lu ◽  
Sha Zhao ◽  
Yi Wei
Keyword(s):  
Magnetic Resonance Imaging ◽  
Brain Area ◽  
Pathological Findings ◽  
Resonance Imaging ◽  
Mri Findings ◽  
Mri Features ◽  
Cerebral Involvement ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain ◽  
Radiology And Pathology

Background Neuroschistosomiasis is not commonly encountered and is probably underrecognized. We hope these findings can help clinicians and radiologists to raise awareness of this disabling disorder. Purpose To demonstrate the magnetic resonance imaging (MRI) findings of cerebral schistosomiasis and correlate it with pathological findings. Material and Methods We identified seven patients with cerebral schistosomiasis from radiology and pathology archives of our hospital. Of the seven patients, six were pathologically confirmed. The remaining patient had pathologically confirmed spinal schistosomiasis with MRI findings of cerebral involvement. MRI and pathological findings of these patients were analyzed and correlated. Results Multiple enhancing nodules at varying size were found in all patients. Prominent leptomeningeal or choroidal veins were found in six patients, four at the center of the foci and two at the periphery. Hemorrhage was identified in two patients. Histology revealed granulomas around ova in six patients. A prominent vein with ova in the lumen and wall of a vein was found in one patient and perivascular ova deposition was found in one patient. Conclusion Multiple enhancing nodules with central or peripheral veins in a circumscribed brain area are important signs to the diagnosis of cerebral schistosomiasis. The inflamed veins involved may be the route taken by the ova to spread to the brain tissue.

scholarly journals Magnetic resonance imaging findings in probable Creutzfeld-Jacob disease: comparison with electroencephalography and cerebrospinal fluid characteristics

2014 ◽  
Vol 3 (10) ◽  
pp. 204798161455221
Author(s):  
Melda Bozluolcay ◽  
Ayse D Elmali ◽  
Sukriye F Menku ◽  
Burcu Zeydan ◽  
Gulcin Benbir ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Cerebrospinal Fluid ◽  
Magnetic Resonance ◽  
Laboratory Data ◽  
Disease Onset ◽  
Initial Symptom ◽  
Resonance Imaging ◽  
Diffusion Weighted Images ◽  
Magnetic Resonance Imaging Mri ◽  
Age Range

Background Creutzfeld-Jacob disease (CJD) is a rare, progressive disease that has a vast clinical manifestation range. Cranial magnetic resonance imaging (MRI), electroencephalography (EEG), and measurement of 14-3-3 in cerebrospinal fluid (CSF) may offer a pragmatic approach in the diagnosis of CJD as an alternative to histopathological confirmation. Purpose To present the symptoms and signs of the CJD patients in regard to radiological and neurophysiological findings. Material and Methods We collected all cases with the diagnosis of probable CJD admitted to our neurology department between June 2010 and June 2014. The medical records and laboratory data, clinical features, results of MRI (including diffusion weighted images), EEG and CSF evaluations, and other laboratory data to exclude other possible diagnoses were recorded. None of the patients underwent biopsy or autopsy for histological diagnosis. Results Of 20 patients, 11 (55%) were men and nine (45%) were women. The mean age at disease onset was 60.0 ± 9.5 years (age range, 47–80 years). All patients without exception had characteristic abnormalities in DWI and/or FLAIR on admission, about 4 months after the initial symptom. Periodic complexes on EEGs characteristic for CJD were detected only in 10 patients (50%) on admission and in 13 patients (65%) during disease course. Out of 14 patients who underwent CSF examination, 11 (78.5%) were positive for 14-3-3 protein. Conclusion Although the definite diagnosis of CJD is made histopathologically, we aimed to discuss the value of magnetic resonance imaging in the diagnosis of CJD in respect to EEG findings and protein 14-3-3 levels in CSF.

scholarly journals An Atypical Porencephalic Cyst Manifesting as a Simple Partial Seizure: A Case Report and Literature Review

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Abdulaziz Ibrahim Al Thafar ◽  
Abdullatif Sami Al Rashed ◽  
Bayan Abdullah Al Matar ◽  
Abdulaziz Mohammad Al-Sharydah ◽  
Abdulrahman Hamad Al-Abdulwahhab ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Case Report ◽  
Neurological Disease ◽  
Brain Parenchyma ◽  
Atypical Presentation ◽  
Resonance Imaging ◽  
Simple Partial Seizure ◽  
Magnetic Resonance Imaging Mri ◽  
And Behavior ◽  
The Brain

Background. Porencephaly is an extremely rare neurological disease characterized by the presence of solitary or multiple degenerative cerebrospinal fluid (CSF) cavities within the brain parenchyma. Case Report. We describe a case involving a 23-year-old male who presented with involuntary movements of the left upper limb of 6 months’ duration. A diagnosis of porencephaly was confirmed by magnetic resonance imaging (MRI). Conclusion. The rarity of occurrence and atypical presentation of such a lesion present a challenge to clinicians. Little is known about the pathogenesis and appropriate management of porencephaly. Further studies of the implications of porencephaly for neurodevelopment and behavior are needed.

scholarly journals A low-resource reliable pipeline to democratize multi-modal connectome estimation and analysis

2021 ◽  
Author(s):  
Ross Lawrence ◽  
Alexander Loftus ◽  
Gregory Kiar ◽  
Eric Bridgeford ◽  
Vikram Chandrashekhar ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Decision Making ◽  
Parameter Tuning ◽  
Biological Variability ◽  
Resonance Imaging ◽  
Low Resource ◽  
Manual Intervention ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain ◽  
And Diffusion

Connectomics-the study of brain networks-provides a unique and valuable opportunity to study the brain. However, research in human connectomics, accomplished via Magnetic Resonance Imaging (MRI), is a resource-intensive practice: typical analysis routines require impactful decision making and significant computational capabilities. Mitigating these issues requires the development of low-resource, easy to use, and flexible pipelines which can be applied across data with variable collection parameters. In response to these challenges, we have developed the MRI to Graphs (m2g) pipeline. m2g leverages functional and diffusion datasets to estimate connectomes reliably. To illustrate, m2g was used to process MRI data from 35 different studies (~6,000 scans) from 15 sites without any manual intervention or parameter tuning. Every single scan yielded an estimated connectome that followed established properties, such as stronger ipsilateral than contralateral connections in structural connectomes, and stronger homotopic than heterotopic correlations in functional connectomes. Moreover, the connectomes generated by m2g are more similar within individuals than between them, suggesting that m2g preserves biological variability. m2g is portable, and can run on a single CPU with 16 GB of RAM in less than a couple hours, or be deployed on the cloud using its docker container. All code is available on https://neurodata.io/mri/.

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