Aneurysm Wall Thickness Measurements of Experimental Aneurysms: In Vivo High-Field MR Imaging Versus Direct Microscopy

2014 ◽  
pp. 17-20
Author(s):  
Camillo Sherif ◽  
Günther Kleinpeter ◽  
Michel Loyoddin ◽  
Georg Mach ◽  
Roberto Plasenzotti ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Wall Thickness ◽  
High Field ◽  
Direct Microscopy ◽  
Aneurysm Wall ◽  
High Field Mr ◽  
Thickness Measurements

scholarly journals In Vivo Determination of Bone Structure in Postmenopausal Women: A Comparison of HR-pQCT and High-Field MR Imaging

2007 ◽  
Vol 23 (4) ◽  
pp. 463-474 ◽  
Author(s):  
Galateia J Kazakia ◽  
Benedict Hyun ◽  
Andrew J Burghardt ◽  
Roland Krug ◽  
David C Newitt ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Postmenopausal Women ◽  
High Field ◽  
Bone Structure ◽  
High Field Mr

scholarly journals Effect of Aneurysm and Patient Characteristics on Intracranial Aneurysm Wall Thickness

2021 ◽  
Vol 8 ◽  
Author(s):  
Jason M. Acosta ◽  
Anne F. Cayron ◽  
Nicolas Dupuy ◽  
Graziano Pelli ◽  
Bernard Foglia ◽  
...  
Keyword(s):  
Intracranial Aneurysm ◽  
Wall Thickness ◽  
Positive Family History ◽  
Patient Characteristics ◽  
Western World ◽  
University Hospitals ◽  
Thickness Uniformity ◽  
Neck Size ◽  
Aneurysm Wall

Background: The circle of Willis is a network of arteries allowing blood supply to the brain. Bulging of these arteries leads to formation of intracranial aneurysm (IA). Subarachnoid hemorrhage (SAH) due to IA rupture is among the leading causes of disability in the western world. The formation and rupture of IAs is a complex pathological process not completely understood. In the present study, we have precisely measured aneurysmal wall thickness and its uniformity on histological sections and investigated for associations between IA wall thickness/uniformity and commonly admitted risk factors for IA rupture.Methods: Fifty-five aneurysm domes were obtained at the Geneva University Hospitals during microsurgery after clipping of the IA neck. Samples were embedded in paraffin, sectioned and stained with hematoxylin-eosin to measure IA wall thickness. The mean, minimum, and maximum wall thickness as well as thickness uniformity was measured for each IA. Clinical data related to IA characteristics (ruptured or unruptured, vascular location, maximum dome diameter, neck size, bottleneck factor, aspect and morphology), and patient characteristics [age, smoking, hypertension, sex, ethnicity, previous SAH, positive family history for IA/SAH, presence of multiple IAs and diagnosis of polycystic kidney disease (PKD)] were collected.Results: We found positive correlations between maximum dome diameter or neck size and IA wall thickness and thickness uniformity. PKD patients had thinner IA walls. No associations were found between smoking, hypertension, sex, IA multiplicity, rupture status or vascular location, and IA wall thickness. No correlation was found between patient age and IA wall thickness. The group of IAs with non-uniform wall thickness contained more ruptured IAs, women and patients harboring multiple IAs. Finally, PHASES and ELAPSS scores were positively correlated with higher IA wall heterogeneity.Conclusion: Among our patient and aneurysm characteristics of interest, maximum dome diameter, neck size and PKD were the three factors having the most significant impact on IA wall thickness and thickness uniformity. Moreover, wall thickness heterogeneity was more observed in ruptured IAs, in women and in patients with multiple IAs. Advanced medical imaging allowing in vivo measurement of IA wall thickness would certainly improve personalized management of the disease and patient care.

Ultra-high-field MR imaging in multiple sclerosis

2013 ◽  
Vol 85 (1) ◽  
pp. 60-66 ◽  
Author(s):  
M. Filippi ◽  
N. Evangelou ◽  
A. Kangarlu ◽  
M. Inglese ◽  
C. Mainero ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Mr Imaging ◽  
High Field ◽  
Ultra High Field ◽  
High Field Mr

Low-field versus high-field MR imaging of the knee: a comparison of signal behaviour and diagnostic performance

1995 ◽  
Vol 19 (2) ◽  
pp. 132-138 ◽  
Author(s):  
Paul M. Parizel ◽  
Homme A.J. Dijkstra ◽  
GéP.J. Geenen ◽  
Peter A.M. Kint ◽  
Rob J. Versteylen ◽  
...  
Keyword(s):  
Mr Imaging ◽  
High Field ◽  
Diagnostic Performance ◽  
Low Field ◽  
Field Versus ◽  
High Field Mr

Cavernous hemangioma of the liver: pathologic correlation with high-field MR imaging.

1994 ◽  
Vol 162 (5) ◽  
pp. 1113-1117 ◽  
Author(s):  
G A Tung ◽  
J P Vaccaro ◽  
J J Cronan ◽  
J M Rogg
Keyword(s):  
Mr Imaging ◽  
Cavernous Hemangioma ◽  
High Field ◽  
Pathologic Correlation ◽  
High Field Mr

Occult Cerebral Vascular Malformations: High-Field MR Imaging

Radiology ◽  
1986 ◽  
Vol 161 (1) ◽  
pp. 278-278
Author(s):  
Walter Kucharczyk ◽  
Michael Brant-Zawadzki
Keyword(s):  
Mr Imaging ◽  
High Field ◽  
Vascular Malformations ◽  
High Field Mr ◽  
Cerebral Vascular Malformations ◽  
Cerebral Vascular

scholarly journals The Evaluation of Dielectric Resonators Containing H2O or D2O as RF Coils for High-Field MR Imaging and Spectroscopy

1996 ◽  
Vol 110 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Han Wen ◽  
Farouc A. Jaffer ◽  
Timothy J. Denison ◽  
Stefan Duewell ◽  
A.Scott Chesnick ◽  
...  
Keyword(s):  
Mr Imaging ◽  
High Field ◽  
Dielectric Resonators ◽  
Rf Coils ◽  
High Field Mr ◽  
Imaging And Spectroscopy

Parkinson plus syndrome: diagnosis using high field MR imaging of brain iron.

Radiology ◽  
1986 ◽  
Vol 159 (2) ◽  
pp. 493-498 ◽  
Author(s):  
B P Drayer ◽  
W Olanow ◽  
P Burger ◽  
G A Johnson ◽  
R Herfkens ◽  
...  
Keyword(s):  
Mr Imaging ◽  
High Field ◽  
Brain Iron ◽  
Syndrome Diagnosis ◽  
High Field Mr
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