A quantitative study of magnetic susceptibility-weighted imaging of deep cerebral veins

2013 ◽  
Vol 40 (5) ◽  
pp. 355-359 ◽  
Author(s):  
Xi-bin Xia ◽  
Chang-lian Tan
1997 ◽  
Vol 39 (11) ◽  
pp. 777-780 ◽  
Author(s):  
A. Madan ◽  
M. Sluzewski ◽  
W. J. J. van Rooij ◽  
C. C. Tijssen ◽  
J. L. J. M. Teepen

2014 ◽  
Vol 21 (3) ◽  
pp. 301-304
Author(s):  
Amit Agrawal

Abstract Meningiomas arising from the falcotentorial junction are the rarest subgroup of tentorial menigiomas. Because of the distance from the brain surface and the surrounding deep cerebral veins these lesions are difficult and dangerous to treat surgically. A 45-year-old female presented with the history of progressive headache, disorientation, unsteadiness, and urinary incontinence for over 6 months. The patient developed difficulty in swallowing, and weakness of all four limbs for the last 7 days. CT scan brain plain and contrast showed a large well defined, homogenously enhancing mass lesion in the peineal region with compression of the upper brain stem and obstructive hydrocephalus. Inspite of the good surgical decompression the patient did not do well. As described in the literature, the compression of the midbrain can cause severe respiratory disturbances with fatal outcome; probably the similar mechanism resulted in poor outcome in present case. As we noticed the diffuse hypodensity in midbrain on CT scan, similar findings have been described in literature in cases of transtentorial herniation with poorer outcome.


1976 ◽  
pp. 210-261 ◽  
Author(s):  
Georges Salamon ◽  
Yun Peng Huang ◽  
P. Michotey ◽  
N. Moscow ◽  
Ch. Raybaud ◽  
...  

Radiology ◽  
1955 ◽  
Vol 64 (2) ◽  
pp. 161-177 ◽  
Author(s):  
Bernard S. Wolf ◽  
Charles M. Newman ◽  
Benno Schlesinger

PLoS ONE ◽  
2020 ◽  
Vol 15 (6) ◽  
pp. e0233992 ◽  
Author(s):  
Philipe Sebastian Breiding ◽  
Frauke Kellner-Weldon ◽  
Lorenz Grunder ◽  
Adrian Scutelnic ◽  
Urs Fischer ◽  
...  

Author(s):  
Diederik O. Bulters ◽  
Andrew Durnford

The first part of this chapter describes normal neurovascular anatomy including its embryology, histology, and normal arterial variants. It includes angiographic arterial anatomy and also the structures and territories supplied by specific vessels. The anatomy of the venous sinuses and both the superficial and deep cerebral veins are described. The second part details normal cerebral neurophysiology, including autoregulation and the control of cerebral perfusion. It covers the myogenic, metabolic, and neurogenic mechanisms of cerebral blood flow and vessel diameter regulation. Finally, the role and influence of mannitol on cerebral blood flow is described, and how although it acutely reduces cerebral volume and intracranial pressure, its exact mechanism of action remains unclear.


2012 ◽  
Vol 27 (1_suppl) ◽  
pp. 107-113 ◽  
Author(s):  
P J Van Den Berg ◽  
L H Visser

A new venous disorder, chronic cerebrospinal venous insufficiency (CCSVI), has been proposed in patients with multiple sclerosis (MS). It is a vascular condition characterized by an impaired cerebrospinal venous drainage due to obstructions in the main extracranial cerebrovenous outflow routes (i.e. internal jugular veins [IJV] and/or azygos veins). In this review, the studies which assessed the prevalence of CCSVI in MS by echo colour Doppler (ECD) will be discussed. The technical aspects of determination of the five CCSVI criteria: (1) reflux in the IJV and/or vertebral veins in supine and upright position, (2) reflux in the deep cerebral veins, (3) high-resolution B-mode proximal IJV stenosis, (4) flow not Doppler detectable in IJVs and/or vertebral veins (VVs) and (5) reverted postural control of the main cerebrovenous outflow pathway are described in detail. We conclude that so far there are many studies with contradictory results, and as yet a strong scientific base to support the evidence for a causative relationship of CCSVI and MS is lacking. Recent studies call into question the validity of using ECD as a proper and reliable test for the diagnosis of CCSVI. One explanation for the variety in interpretation of the individual CCSVI criteria, with the wide-ranging percentages CCSVI, could be the different methods by using ECD to determine various criteria.


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