scholarly journals 3.0-Tesla MR angiography of intracranial aneurysms: Comparison of time-of-flight and contrast-enhanced techniques

2005 ◽  
Vol 21 (2) ◽  
pp. 97-102 ◽  
Author(s):  
Gordon F. Gibbs ◽  
John Huston ◽  
Matthew A. Bernstein ◽  
Stephen J. Riederer ◽  
Robert D. Brown
Keyword(s):  
Intracranial Aneurysms ◽  
Mr Angiography ◽  
Time Of Flight ◽  
3.0 Tesla ◽  
Contrast Enhanced

scholarly journals A Prospective Trial of 3T and 1.5T Time-of-Flight and Contrast-Enhanced MR Angiography in the Follow-Up of Coiled Intracranial Aneurysms

2009 ◽  
Vol 31 (5) ◽  
pp. 912-918 ◽  
Author(s):  
T.J. Kaufmann ◽  
J. Huston ◽  
H.J. Cloft ◽  
J. Mandrekar ◽  
L. Gray ◽  
...  
Keyword(s):  
Intracranial Aneurysms ◽  
Mr Angiography ◽  
Prospective Trial ◽  
Time Of Flight ◽  
Contrast Enhanced

Neonatal intracranial aneurysms: case report and review of the literature

2018 ◽  
Vol 21 (5) ◽  
pp. 471-477 ◽  
Author(s):  
Jeewaka E. Mohotti ◽  
Nicole S. Carter ◽  
Victor Jia Wei Zhang ◽  
Leon T. Lai ◽  
Christopher Xenos ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Endovascular Treatment ◽  
Intracranial Aneurysms ◽  
Time Of Flight ◽  
Review Of The Literature ◽  
Microsurgical Treatment ◽  
Enhanced Mri ◽  
Contrast Enhanced ◽  
Mca Aneurysm ◽  
Contrast Enhanced Mri

Intracranial aneurysms in the neonate, presenting in the first 4 weeks of life, are exceedingly rare. They appear to have characteristics, including presentation and location, that vary from those found in adults. The authors present a case of a 28-day-old neonate with a ruptured distal middle cerebral artery (MCA) aneurysm. Initial noninvasive imaging with transfontanelle ultrasound and CT confirmed intraparenchymal and subarachnoid hemorrhage. Contrast-enhanced MRI revealed a 14-mm ruptured fusiform MCA aneurysm that was not identified on time-of-flight magnetic resonance angiography (MRA). Microsurgical treatment was performed with partial neurological recovery. A comprehensive review of the literature from 1949 to 2017 revealed a total of 40 aneurysms in 37 neonates, including the present case. The most common presenting symptom was seizure. Although subarachnoid hemorrhage was the most common form of hemorrhage, 40% had intraparenchymal hemorrhage. The median aneurysm size was 10 mm (range 2–30 mm) and the most common location was the MCA, with two-thirds of cases involving the distal intracranial vasculature. Over the last 10 years, there has been a trend of increasing noninvasive diagnosis of ruptured cerebral aneurysms in neonates, with CT angiography and contrast-enhanced MRI being the most useful diagnostic modalities. The use of contrast-enhanced MRI may improve sensitivity over time-of-flight MRA. Microsurgical treatment was the most common treatment modality overall, with increased use of endovascular treatment in the last decade. Most patients underwent microsurgical vessel ligation or endovascular parent vessel occlusion. There were high rates of neurological recovery after microsurgical or endovascular treatment, particularly for patients with distal aneurysms.

scholarly journals Follow-Up of Coiled Cerebral Aneurysms at 3T: Comparison of 3D Time-of-Flight MR Angiography and Contrast-Enhanced MR Angiography

2008 ◽  
Vol 29 (8) ◽  
pp. 1530-1536 ◽  
Author(s):  
N. Anzalone ◽  
F. Scomazzoni ◽  
M. Cirillo ◽  
C. Righi ◽  
F. Simionato ◽  
...  
Keyword(s):  
Mr Angiography ◽  
Time Of Flight ◽  
Cerebral Aneurysms ◽  
Contrast Enhanced

Three-dimensional volume rendering for magnetic resonance angiography in the screening and preoperative workup of intracranial aneurysms

1996 ◽  
Vol 85 (6) ◽  
pp. 1050-1055 ◽  
Author(s):  
Philippe P. Maeder ◽  
Reto A. Meuli ◽  
Nicolas de Tribolet
Keyword(s):  
Magnetic Resonance ◽  
Volume Rendering ◽  
Intracranial Aneurysms ◽  
Mr Angiography ◽  
Three Dimensional ◽  
Time Of Flight ◽  
Conventional Angiography ◽  
Content Type ◽  
Aneurysm Neck ◽  
Fine Print

✓ This study was undertaken to evaluate the capacity of three-dimensional (3-D) time-of-flight (TOF) magnetic resonance (MR) angiography with VoxelView (VV) 3-D volume rendering to detect and characterize intracranial aneurysms and to compare this rendering technique with that of maximum intensity projection (MIP). Forty patients with a total of 53 intracranial aneurysms (10 giant and subgiant, 43 saccular) were consecutively admitted to University Hospital, Lausanne, Switzerland, and investigated with 3-D TOF MR angiography. Source images of the 43 saccular aneurysms were processed with both MIP and VV. The aneurysm detection rate of the two techniques and their ability to characterize features of an aneurysm, such as its neck and its relation to the parent vessel, were compared. Intraarterial digital subtraction angiography was used as the gold standard to which these techniques could be compared and evaluated. Four aneurysms, less than 3 mm in size, were missed using MIP compared to three missed using VV. The representation of aneurysmal morphology using VV was superior to that found using conventional angiography in nine cases, equal in 16 cases, and inferior in seven cases. The representation of the aneurysm neck using VV was superior to MIP in 21 cases, equal in 17 cases, and inferior in one case; it was superior to that shown using conventional angiography in 10 cases, equal in 18 cases, and inferior in four cases. Time-of-flight MR angiography in conjunction with both MIP and VV 3-D reconstruction was able to visualize all aneurysms that were larger than 3 mm. Compared to MIP, VV provides a better definition of the aneurysm neck and the morphology of saccular aneurysms, making VV valuable for use in a preoperative diagnostic workup.

A Diagnostic Pitfall for Intracranial Aneurysms in Time-of-Flight MR Angiography: Small Intracranial Lipomas

2008 ◽  
Vol 190 (1) ◽  
pp. W62-W67 ◽  
Author(s):  
Andre Kemmling ◽  
Ingo Noelte ◽  
Lars Gerigk ◽  
Stephan Singer ◽  
Christoph Groden ◽  
...  
Keyword(s):  
Intracranial Aneurysms ◽  
Mr Angiography ◽  
Time Of Flight ◽  
Diagnostic Pitfall
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