Simulation of relative temporal resolution of time-resolved MRA sequences
نویسندگان
چکیده
منابع مشابه
Accelerating time-resolved MRA with multiecho acquisition.
A new four-dimensional magnetic resonance angiography (MRA) technique called contrast-enhanced angiography with multiecho and radial k-space is introduced, which accelerates the acquisition using multiecho while maintaining a high spatial resolution and increasing the signal-to-noise ratio (SNR). An acceleration factor of approximately 2 is achieved without parallel imaging or undersampling by ...
متن کاملNon Contrast Time-Resolved MRA combining High Resolution Multiple Phase EPISTAR (CINEMA-STAR)
Introduction Detailed information on anatomy and hemodynamics in cerebrovascular disorders such as AVM and Moyamoya disease is mandatory for defined diagnosis and treatment planning [1]. DSA may still be a gold standard for diagnostic modality but is otherwise invasive. Contrast-enhanced dynamic MR angiography (CE-dMRA) is a useful technique but poses a risk associated with contrast agent [2]. ...
متن کاملAn Improvement in Temporal Resolution of Seismic Data Using Logarithmic Time-frequency Transform Method
The improvement in the temporal resolution of seismic data is a critical issue in hydrocarbon exploration. It is important for obtaining more detailed structural and stratigraphic information. Many methods have been introduced to improve the vertical resolution of reflection seismic data. Each method has advantages and disadvantages which are due to the assumptions and theories governing their ...
متن کاملTime-Resolved Contrast-Enhanced MRA Using Cartesian Techniques
INTRODUCTION The last decade has seen major advances in the performance capabilities of time-resolved contrast-enhanced (CE) magnetic resonance angiography (MRA). Today, for example, it is possible to generate 3D time-resolved image sets with higher spatial resolution, wider anatomic coverage, better temporal fidelity, and improved image quality while using smaller acquisition times than what w...
متن کاملNonenhanced Time-resolved Mra Using Inflow Arterial Spin Labeling
Introduction A pulsed arterial spin labeling (ASL) technique is useful for obtaining hemodynamics information as well as tissue perfusion without using contrast materials and there are various methods have proposed [1-4]. In the standard ASL techniques, subtraction between a tag pulse and a control pulse is required to enhance blood vessels while subtracting out the background signals. However,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2008
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.21658