Signal changes in cortical laminar necrosis—evidence from susceptibility-weighted magnetic resonance imaging

2009 ◽  
Vol 51 (5) ◽  
pp. 293-298 ◽  
Author(s):  
Chandrasekharan Kesavadas ◽  
Kannath Santhosh ◽  
Bejoy Thomas ◽  
Arun Kumar Gupta ◽  
Tirur Raman Kapilamoorthy ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Cortical Laminar Necrosis ◽  
Cortical Laminar ◽  
Weighted Magnetic Resonance Imaging ◽  
Laminar Necrosis ◽  
Signal Changes

scholarly journals Advanced magnetic resonance imaging of cortical laminar necrosis in patients with stroke

2019 ◽  
Vol 32 (6) ◽  
pp. 431-437 ◽  
Author(s):  
Roberto Cannella ◽  
Gianvincenzo Sparacia ◽  
Vincenzina Lo Re ◽  
Elisa Oddo ◽  
Giuseppe Mamone ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Acute Stage ◽  
Arterial Spin Labelling ◽  
Resonance Imaging ◽  
Cortical Laminar Necrosis ◽  
Diffusion Weighted ◽  
Cortical Laminar ◽  
Laminar Necrosis ◽  
Spin Labelling

Purpose The aim of this study was to assess the novel advanced magnetic resonance imaging findings of acute stage cortical laminar necrosis developing after complicated cardiovascular or abdominal surgery. Materials and methods This institutional review board-approved study included patients with postoperative stroke due to cortical laminar necrosis imaged with magnetic resonance in the acute stage. Brain magnetic resonance imaging examinations were obtained on a 3T magnetic resonance scanner within 48 hours of the neurological symptoms, including diffusion-weighted images (b value, 1000 s/mm2) and arterial spin labelling using a pseudo-continuous arterial spin labelling method in four patients. Conventional and advanced magnetic resonance images were analysed to assess the imaging features in acute stage cortical laminar necrosis. Results The final population consisted of 14 patients (seven men and seven women, mean age 61 years, range 32–79 years) diagnosed with stroke and acute phase cortical laminar necrosis. All the patients presented with cortical lesions showing restricted diffusion on diffusion-weighted images and hypointensity on the apparent diffusion coefficient map. Cortical hyperintensity on T2-weighted or fluid-attenuated inversion recovery images was found in three (21%) and six (43%) patients, respectively. Reduced perfusion was noted in three out of four patients imaged with arterial spin labelling, while in one case no corresponding perfusion abnormality was noted on the arterial spin labelling maps. Arterial spin labelling abnormalities were much more extensive than diffusion restriction in two patients, and they were associated with a poor outcome. Conclusion Cortical hyperintense abnormalities on diffusion-weighted imaging may be the only sign of developing cortical laminar necrosis injury. The acquisition of arterial spin labelling helps to identify perfusion alterations and the extension of the ischaemic injury.

scholarly journals Conventional and functional magnetic resonance imaging features of late subacute cortical laminar necrosis in a dog

2019 ◽  
Vol 33 (4) ◽  
pp. 1759-1765 ◽  
Author(s):  
Neringa Alisauskaite ◽  
Adriano Wang‐Leandro ◽  
Matthias Dennler ◽  
Marta Kantyka ◽  
Simone K. Ringer ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Functional Magnetic Resonance Imaging ◽  
Imaging Features ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Cortical Laminar Necrosis ◽  
Cortical Laminar ◽  
Laminar Necrosis

scholarly journals The Combination of Hypointense and Hyperintense Signal Changes on T2-Weighted Magnetic Resonance Imaging Sequences

1999 ◽  
Vol 56 (2) ◽  
pp. 225 ◽  
Author(s):  
Eduard Kraft ◽  
Johannes Schwarz ◽  
Claudia Trenkwalder ◽  
Thomas Vogl ◽  
Thomas Pfluger ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Hyperintense Signal ◽  
Weighted Magnetic Resonance Imaging ◽  
Signal Changes

Signal Changes on T2*-Weighted Magnetic Resonance Imaging from the Acute to Chronic Phases in Patients with Subarachnoid Hemorrhage

2013 ◽  
Vol 36 (5-6) ◽  
pp. 421-429 ◽  
Author(s):  
Takashi Inoue ◽  
Shihomi Takada ◽  
Hiroaki Shimizu ◽  
Kuniyasu Niizuma ◽  
Miki Fujimura ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Subarachnoid Hemorrhage ◽  
Magnetic Resonance ◽  
Resonance Imaging ◽  
Weighted Magnetic Resonance Imaging ◽  
Signal Changes

scholarly journals Assessment of lacrimal glands in thyroid eye disease with diffusion-weighted magnetic resonance imaging

2019 ◽  
Vol 84 ◽  
pp. 142-146 ◽  
Author(s):  
Ahmed Razek ◽  
El-hadidy Mohamed El-Hadidy ◽  
Mohamed El-Said Moawad ◽  
Nader El-Metwaly ◽  
Amr Abd El-hamid El-Said
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Thyroid Eye Disease ◽  
Eye Disease ◽  
Resonance Imaging ◽  
Lacrimal Glands ◽  
Diffusion Weighted ◽  
Weighted Magnetic Resonance Imaging
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