Vertebral Artery Dissection Diagnosed by Non-Invasive Magnetic Resonance Imaging

2000 ◽  
Vol 45 (4) ◽  
pp. 119-120 ◽  
Author(s):  
T.J. Cawood ◽  
A.G. Dyker ◽  
F.G. Adams
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Vertebral Artery ◽  
Vertebral Artery Dissection ◽  
Artery Dissection ◽  
Cerebellar Infarction ◽  
Resonance Imaging ◽  
Cerebellar Dysfunction ◽  
Non Invasive ◽  
The Brain

A forty-year-old man developed right-sided neck discomfort whilst cycling to work. On admission to hospital he was found to have signs of bilateral cerebellar dysfunction. Magnetic resonance imaging of the brain demonstrated bilateral areas of cerebellar infarction. Doppler ultrasound of the vertebral arteries was abnormal and non-invasive gradient echo time of flight magnetic resonance angiography confirmed the clinical diagnosis of vertebral artery dissection. The patient was anticoagulated for a period of three months and made a full recovery.

scholarly journals Effect of coil packing proximal to the dilated segment on postoperative medullary infarction and prognosis following internal trapping for ruptured vertebral artery dissection

2015 ◽  
Vol 22 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Hiroyuki Ikeda ◽  
Hirotoshi Imamura ◽  
Yohei Mineharu ◽  
Shoichi Tani ◽  
Hidemitsu Adachi ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Risk Factors ◽  
Magnetic Resonance ◽  
Vertebral Artery ◽  
Vertebral Artery Dissection ◽  
Proximal Segment ◽  
Segment Length ◽  
Artery Dissection ◽  
Resonance Imaging ◽  
Medullary Infarction

Introduction Medullary infarction is an important complication of internal trapping for vertebral artery dissection. This study investigated risk factors for medullary infarction following internal trapping of ruptured vertebral artery dissection. Methods We retrospectively studied 26 patients with ruptured vertebral artery dissection who underwent endovascular treatment and postoperative magnetic resonance imaging between April 2001 and March 2013. Clinical and radiological findings were analyzed to identify factors associated with postoperative medullary infarction. Results Ten of the 26 patients (38%) showed postoperative lateral medullary infarction on magnetic resonance imaging. Multivariate logistic regression analysis revealed that medullary infarction was independently associated with poor clinical outcome (odds ratio (OR) 17.01; 95% confidence interval (CI) 1.68–436.81; p = 0.032). Univariate analysis identified vertebral artery dissection on the right side and longer length of the entire trapped area as risk factors for postoperative medullary infarction. When the trapped area was divided into three segments (dilated, distal, and proximal segments), proximal segment length, but not dilated segment length, was significantly associated with medullary infarction (OR 1.55 for a 1-mm increase in proximal segment length; 95% CI 1.15–2.63; p = 0.027). Receiver operating characteristic analysis showed that proximal segment length offered a good predictor of the risk of postoperative medullary infarction, with a cut-off value of 5.8 mm (sensitivity 100%; specificity 82.3%). Conclusions Longer length of the trapped area, specifically the segment proximal to the dilated portion, is associated with a higher incidence of medullary infarction following internal trapping, indicating that this complication may be avoidable.

Gradient Echo-Additional Track Sign for Easy Detection of Vertebral Artery Dissection

2018 ◽  
Vol 1 (1) ◽  
pp. 34-40
Author(s):  
Pawan Ojha ◽  
Shashank Nagendra ◽  
Sarika Patil ◽  
Rakesh Singh ◽  
Akash Chheda
Keyword(s):  
Magnetic Resonance Imaging ◽  
Vertebral Artery ◽  
Vertebral Artery Dissection ◽  
Artery Dissection ◽  
Resonance Imaging ◽  
Gradient Echo ◽  
Brain Computed Tomography ◽  
Routine Magnetic Resonance Imaging ◽  
The Brain ◽  
Stroke In Young

Vertebral artery dissection (VAD), a well-recognized cause of stroke in young, can be easily missed on magneto resonance angiography of the brain. Computed tomography and catheter−based angiography are often used to detect arterial dissection, but they have their limitations. Here, we discuss cases of stroke in young where the presence of the additional track sign on a gradient echo sequence provided the clue to VAD being the etiology of stroke. This sign observed on the routine magnetic resonance imaging brain might be of great help to clinicians and radiologists for the easy detection of VAD.

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