scholarly journals Grading of Gliomas by Using Radiomic Features on Multiple Magnetic Resonance Imaging (MRI) Sequences

2017 ◽  
Vol 23 ◽  
pp. 2168-2178 ◽  
Author(s):  
Jiang-bo Qin ◽  
Zhenyu Liu ◽  
Hui Zhang ◽  
Chen Shen ◽  
Xiao-chun Wang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri

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 The ivy sign

2014 ◽  
Vol 18 (1) ◽  
Author(s):  
Nasreen Mahomed ◽  
Evance Chisama ◽  
Sanjay Prabhu
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Moyamoya Disease ◽  
Signal Intensity ◽  
Perivascular Spaces ◽  
Resonance Imaging ◽  
Leptomeningeal Enhancement ◽  
Weighted Magnetic Resonance Imaging ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri

The ivy sign refers to diffuse bilateral leptomeningeal enhancement on post- contrastT1-weighted magnetic resonance imaging (MRI) and increased signal intensity in bilateralsubarachnoid spaces and perivascular spaces on T2-weighted fluid attenuation inversionrecovery (FLAIR) MRI sequences in patients with moyamoya disease.

scholarly journals Susceptibility Weighted Imaging as a Useful Imaging Adjunct in Hemichorea Hyperglycaemia

2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Ferry Dharsono ◽  
Andrew Thompson ◽  
Jolandi van Heerden ◽  
Andrew Cheung
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Corpus Striatum ◽  
Clinical Entity ◽  
Susceptibility Weighted Imaging ◽  
Resonance Imaging ◽  
Weighted Image ◽  
Susceptibility Weighted Image ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri

Hyperglycaemia with hemichorea (HGHC) is an unusual clinical entity that can be associated with corpus striatum hyperintensity on T1-weighted (T1W) magnetic resonance imaging (MRI) sequences. We report the utility of the susceptibility weighted image (SWI) sequence and the filtered phase SWI sequence in the imaging assessment of HGHC.

scholarly journals Comparison of Post-mortem 7.0-Tesla Magnetic Resonance Imaging of the Brains of Alzheimer Patients with and without Cerebral Amyloid Angiopathy

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Jacques De Reuck ◽  
◽  
Florent Auger ◽  
Nicolas Durieux ◽  
Claude-Alain Maurage ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Cerebral Amyloid Angiopathy ◽  
Amyloid Angiopathy ◽  
Post Mortem ◽  
Resonance Imaging ◽  
Cerebrovascular Lesions ◽  
Mri Sequences ◽  
Cerebral Amyloid ◽  
Magnetic Resonance Imaging Mri

Purpose: The influence of cerebral amyloid angiopathy (CAA) in Alzheimer’s disease (AD) remains unexplored. The present post-mortem study investigated possible differences in the degree of hippocampal atrophy (HA) between AD patients with and without CAA using 7.0-tesla magnetic resonance imaging (MRI). Also, the incidence of the hippocampal cortical micro-infarcts (HCoMIs) and hippocampal cortical micro-bleeds (HCoMBs) is compared to those in the neocortex. Methods: The examined post-mortem brains included 30 AD-CAA cases and 20 AD without CAA cases. The samples of the hippocampus were evaluated on the most representative coronal section with T2 and T2* MRI sequences. The average degree of HA was determined in both groups. The incidences of HCoMIs and HCoMBs, along with the frequency of CoMIs and CoMBs in the neocortex were compared in both groups: AD-with CAA and AD without CAA cases. Results: No significant differences were observed in the degree of HA and the incidence of hippocampal micro-infarcts (HMIs) and hippocampal micro-bleeds (HMBs) between the AD-CAA and the AD brains in contrast to the higher incidence of these cerebrovascular lesions in the neocortex of AD-CAA brains. The incidence of CoMIs and CoMBs in the neocortex showed similarity to that in the hippocampus of AD patients without CAA. Conclusions: CAA does not influence the degree of HA and the incidence of micro-infarcts (MIs) and micro-bleeds (MBs) in the hippocampus, in contrast to the high contribution of the latter with CAA in the neocortex. The hippocampus seems to be more spared from cerebrovascular involvement than the other parts of the brain.

scholarly journals Characteristics of wooden intraocular foreign body by magnetic resonance imaging in rabbits

2018 ◽  
Vol 46 (11) ◽  
pp. 4717-4721
Author(s):  
Baohong Wen ◽  
Jingliang Cheng ◽  
Huixia Zhang ◽  
Yong Zhang ◽  
Xiaonan Zhang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Foreign Body ◽  
Magnetic Resonance ◽  
Intraocular Foreign Body ◽  
Proton Density ◽  
Resonance Imaging ◽  
Integrated Diagnosis ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri ◽  
The Right

Objective Intraocular foreign body (IOFB), a frequent cause of ocular trauma, causes serious damage to the eyes. This study was designed to elaborate and compare the characteristics of different magnetic resonance imaging (MRI) sequences in detecting wooden IOFBs in rabbits. Methods The right vitreous of 24 healthy rabbits was randomly implanted with diverse wooden foreign bodies (diameter φ = 0.2 mm). The T1-weighted imaging (T1WI), T2-weighted imaging (T2WI), proton density-weighted imaging (PDWI), and susceptibility-weighted imaging (SWI) sequences were applied individually 2 weeks after the implantation. Results IOFBs were detected as linear low signals on T1WI, T2WI, PDWI, and SWI (SWI image). The detectable rates of poplar wood with a length of 0.5 mm were 0%, 50%, 0%, and 67% for T1WI, T2WI, PDWI, and SWI, respectively. SWI and T2WI sequences exhibited higher sensitivity than T1WI and PDWI. The detectable rates of the first three SWI sequences (magnitude, phase, and SWI) were all 67%, which was higher than that of the minimum intensity projection sequence (33%). Conclusion MRI is practicable in the diagnosis of wooden IOFBs. SWI and T2WI are optimal for the integrated diagnosis of wooden IOFBs and could be used for diagnosis and immediate treatment.

scholarly journals Magnetic resonance imaging brain sequences in pediatrics

2021 ◽  
Vol 36 ◽  
pp. 27-34
Author(s):  
Ravindra Bhimrao Kamble
Keyword(s):  
Magnetic Resonance Imaging ◽  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Pediatric Patients ◽  
Disease Process ◽  
Review Article ◽  
Resonance Imaging ◽  
Mri Sequences ◽  
Rapid Mri ◽  
Magnetic Resonance Imaging Mri

There are various pediatric magnetic resonance imaging (MRI) protocols followed in institutes and by individual radiologists, determined by the disease process and the indication for imaging, to narrow down the differential diagnosis. Most times, it is beneficial to modify protocols when the scans are being done, based on the findings seen on initially acquired sequences. This is particularly useful in pediatric patients considering most of them are scanned either under sedation or general anesthesia, and repeat scans will be cumbersome. In this particular review article, we are going to discuss appropriate MRI sequences in scanning pediatric brains and the need for rapid MRI sequences. This is of immense importance as MRI in pediatric patients poses challenges both to radiologists and technologists. Consequently, appropriate MRI protocols should be set to avoid repeat studies.

scholarly journals Magnetic Resonance Imaging Detection of Intraplaque Hemorrhage

2017 ◽  
Vol 10 ◽  
pp. 1178623X1769415 ◽  
Author(s):  
J Scott McNally ◽  
Seong-Eun Kim ◽  
Jason Mendes ◽  
J Rock Hadley ◽  
Akihiko Sakata ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Stroke Risk ◽  
Intraplaque Hemorrhage ◽  
Cine Imaging ◽  
Resonance Imaging ◽  
Carotid Artery Atherosclerosis ◽  
Robust Techniques ◽  
Mri Sequences ◽  
Magnetic Resonance Imaging Mri

Carotid artery atherosclerosis is a major cause of ischemic stroke. For more than 30 years, future stroke risk and carotid stroke etiology have been determined using percent diameter stenosis based on clinical trials in the 1990s. In the past 10 years, magnetic resonance imaging (MRI) sequences have been developed to detect carotid intraplaque hemorrhage. By detecting carotid intraplaque hemorrhage, MRI identifies potential stroke sources that are often overlooked by lumen imaging. In addition, MRI can dramatically improve assessment of future stroke risk beyond lumen stenosis alone. In this review, we discuss the use of heavily T1-weighted MRI sequences used to detect carotid intraplaque hemorrhage. In addition, advances in ciné imaging, motion robust techniques, and specialized neck coils will be reviewed. Finally, the clinical use and future impact of MRI plaque hemorrhage imaging will be discussed.

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