How does time-of-flight MRA work? For at least the first two decades of MRI, time-of-flight (TOF) MRA was the dominant non-contrast bright-blood method for imaging the human vascular system. Although now supplanted in body MR imaging by other techniques, it still remains one of the ...
We prospectively studied 15 patients to assess 2D time-of-flight (TOF) magnetic resonance angiography (MRA) with concatenated saturation bands for determining the direction of intracranial blood flow. This MRA sequence was compared to T2-weighted spin-echo MRI, 3D-TOF MRA, and intra-arterial angio...
Three-dimensional time-of-flight MRA was performed with and without MTC. Analysis of vessel-brain signal difference-to-noise ratios (SD/N) was performed. The visualisation of small blood vessels was also estimated. MTC pulses improved the vessel-brain SD/N (mean improvement: 10%) as well as...
摘要: Recently, time-of-flight (TOF) and gadolinium-enhanced MR angiography (MRA) imaging have been used to demonstrate subacute intramural hematoma in cervical artery dissection and to detect intraplaque h关键词:Deep venous sinus thrombosis MR angiography TOF Time-of-flight ...
Time-of-flight MR angiography with Gd-DTPA hexamethylene diamine co-polymer blood pool contrast agent: comparison of enhanced MRA and conventional angiogra... Vascular stenoses were induced in the external iliac arteries of New Zealand white rabbits by a combination of hypercholesterolemic diet and...
An Adaptive Segmentation Algorithm for Time-of-Flight MRA Data. Focuses on the development of an algorithm for segmenting the arterial structures from time-of-flight magnetic resonance angiography (MRA) data. Introduct... Wilson,L D.,Noble,... - 《IEEE Transactions on Medical Imaging》 被引量...
The 3D Time-of-Flight (TOF) MRA technique is a commonly used non-invasive imaging technique for exploration of the vascular anatomy. Several clinical applications require exact cerebrovascular segmentations from this image sequence. For this purpose, intensity-based segmentation approaches are widely ...
OBJECTIVES: Magnetic resonance angiography (MRA) is noninvasive and does not require the application of high doses of contrast agents, and thus is used in the clinical routine for evaluation of cerebrovascular diseases, eg, aneurysm and arteriovenous malformations. However, more subtle microvascular di...
To evaluate the ability of 2-D time-of-flight (ToF) magnetic resonance angiography (MRA) to depict intracranial vasculature and compare results obtained with 3.0- and 7.0-T scanners in dogs.5 healthy Beagles.2-D ToF-MRA of the intracranial vasculature was obtained for each dog by use of a...
High-resolution compressed-sensing time-of-flight MRA in a case of acute ICA/MCA dissection 来自 EBSCO 喜欢 0 阅读量: 20 作者:D Theo,B Leo,EM Amgad,S Tilman 摘要: Acute, isolated intracranial dissection (ICD) represents a rare and challenging cause of acute stroke. DSA is considered to ...