Intraoperative Assessment of Aneurysm Clipping Using Magnetic Resonance Angiography and Diffusion-weighted Imaging: Technical Case Report

Neurosurgery ◽  
2002 ◽  
Vol 50 (4) ◽  
pp. 893-898 ◽  
Author(s):  
Garnette R. Sutherland ◽  
Taro Kaibara ◽  
Carla Wallace ◽  
Boguslaw Tomanek ◽  
Marlene Richter

Abstract OBJECTIVE AND IMPORTANCE: To use intraoperative magnetic resonance imaging, including magnetic resonance angiography and diffusion-weighted imaging, to monitor the surgical treatment of a patient with an intracranial aneurysm. TECHNIQUE: Intraoperative imaging was performed with a ceiling-mounted, mobile, 1.5-T magnet (developed in collaboration with Innovative Magnetic Resonance Imaging Systems, Inc., Winnipeg, MB, Canada) that included high-performance 20-mT/m gradients. Pre- and postclipping, intraoperative, T1-weighted, angiographic and diffusion-weighted magnetic resonance images were obtained from a patient with an incidental, 8-mm, anterior communicating artery aneurysm. RESULTS: T1-weighted images demonstrated brain anatomic features, with visible shifts induced by surgery. Magnetic resonance angiography demonstrated the aneurysm and indicated that, after clipping, the A1 and A2 anterior cerebral artery branches were patent. Diffusion-weighted studies demonstrated no evidence of brain ischemia. CONCLUSION: For the first time, intraoperative magnetic resonance imaging has been used to monitor the surgical treatment of a patient with an intracranial aneurysm.

2005 ◽  
Vol 46 (1) ◽  
pp. 101-103 ◽  
Author(s):  
A. Yeşildağ ◽  
A. Ayata ◽  
B. Baykal ◽  
M. Koroglu ◽  
H. Yıldız ◽  
...  

Methylmalonic acidemia (MMA) is an inborn disorder of amino acid metabolism, often presenting with neurological symptoms. We present the results of magnetic resonance imaging (MRI) and diffusion‐weighted imaging (DWI) of the brain in a 16‐month‐old male patient with classic neurological and laboratory findings for MMA. MRI demonstrated the hyperintensity within globi pallidi both on T2‐weighted image and DWI during the acute episode of metabolic acidosis.


2011 ◽  
Vol 78 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Wenche M. Klerkx ◽  
Willem M. Mali ◽  
A. Peter Heintz ◽  
Gerard A. de Kort ◽  
Taro Takahara ◽  
...  

PLoS ONE ◽  
2018 ◽  
Vol 13 (8) ◽  
pp. e0203217 ◽  
Author(s):  
Remco van Schadewijk ◽  
Tomas E. van den Berg ◽  
Karthick B. Sai Sankar Gupta ◽  
Itamar Ronen ◽  
Huub J. M. de Groot ◽  
...  

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