scholarly journals Magnetic Resonance Angiography Visualization of Four Vessel (Bilateral Carotid and Vertebral Artery) Occlusion —Two Case Reports—

1998 ◽  
Vol 38 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yoshikazu OKADA ◽  
Takeshi SHIMA ◽  
Masahiro NISHIDA ◽  
Reiko KAGAWA
2021 ◽  
Author(s):  
Tianyu Zhang ◽  
Feng Xue ◽  
Yu Kang ◽  
Yanhua Wang ◽  
Peixun Zhang ◽  
...  

Abstract PurposeTo detect the relationship between the vertebral artery occlusion and the intravertebral cleft (IVC).MethodsA prospective evaluation of the vertebral segmental artery condition from the T10 to L4 with the magnetic resonance angiography (MRA) was performed in 44 osteoporosis vertebral compression fracture (OVCF) patients. The artery condition was divided into the patency, narrow, occlusion. The lesion segmental occlusion rate (LSOR) and the total occlusion rate (TOR) was calculated. The relation of the vertebral artery occlusion and the IVC formation was assessed with the univariate analysis. ResultsLOSR was 15.34% and TOR was 15.2%. The segmental arteries of the unfractured vertebrae had higher occlusion rate in thoracolumbar levels than non-thoracolumbar levels. Neither lesion levels arteries occlusion nor the total segmental arteries occlusion was associated with the IVC.ConclusionsVertebral compression fracture did not lead to the segmental artery occlusion. The segmental artery occlusion more likely happened in the thoracolumbar levels. The segmental artery occlusion did not lead to the IVC.


2019 ◽  
Vol 6 ◽  
pp. 2329048X1986780
Author(s):  
Abdulla Alawadhi ◽  
Christine Saint-Martin ◽  
Christine Sabapathy ◽  
Guillaume Sebire ◽  
Michael Shevell

Lateral medullary syndrome is rare in pediatrics. It is characterized by neurological deficits due to an ischemic lesion in the lateral medulla. The authors describe a 17-year-old boy who developed lateral medullary syndrome in the context of a hyperflexion neck injury while diving in shallow water with traumatic vascular injury. He had “crossed” neurological deficits above and below the neck. His magnetic resonance angiography showed intra- and extracranial left vertebral artery occlusion and his magnetic resonance imaging showed signal abnormality involving the left lateral medulla and inferomedial cerebellum in keeping with an infarct secondary to left vertebral artery and left posterior inferior cerebellar artery occlusion. Good neurological recovery was observed on heparin therapy started after surgical treatment of traumatic injury. To our knowledge, this is the first reported case of lateral medullary syndrome in a pediatric population related to a flexion neck injury. The authors emphasize the importance of a high level of suspicion for accurate diagnosis.


2009 ◽  
Vol 20 (5) ◽  
pp. 282-287
Author(s):  
Teruo Sasaki ◽  
Yuki Yoshida ◽  
Shinichi Omama ◽  
Yasuhumi Kikuchi ◽  
Kuniaki Ogasawara ◽  
...  

Neurosurgery ◽  
2009 ◽  
Vol 64 (4) ◽  
pp. E779-E781 ◽  
Author(s):  
Robert M. Starke ◽  
Mark Chwajol ◽  
Daniel Lefton ◽  
Chandranath Sen ◽  
Alejandro Berenstein ◽  
...  

Abstract OBJECTIVE Patients with partial or complete bilateral vertebral artery occlusion often present with signs and symptoms of transient ischemic attacks or infarction. Advances in phase contrast magnetic resonance imaging have led to noninvasive assessment of volumetric blood flow rates and direction that help in the workup and management of these patients. CLINICAL PRESENTATION We present the case of a patient with symptoms of vertebrobasilar insufficiency without previous transient ischemic attacks or stroke. Quantitative magnetic resonance angiography (QMRA) demonstrated bilateral vertebral artery occlusion with reversal of flow in the basilar and vertebral arteries to the level of the posterior inferior cerebellar arteries bilaterally. A prominent right posterior communicating artery filled the basilar artery and proximal vertebral arteries. INTERVENTION The presence of reversal and diminished flow in the basilar and vertebral arteries suggested that occipital artery-to-posterior inferior cerebellar artery bypass would improve posterior circulation, relieve symptoms, and reduce the risk of infarction. Postoperative QMRA and angiography confirmed revascularization, and QMRA confirmed correction of blood flow direction. CONCLUSION This case illustrates the potential of QMRA as part of a comprehensive cerebrovascular assessment, operative planning, and follow-up of patients with vertebrobasilar insufficiency.


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