It has been appreciated from the earliest development of MR imaging that MR images are
exquisitely sensitive to motion. This sensitivity remains the major limitation in the application …

Diffusion-weighted MR imaging is a technique in which image contrast is determined by the
motion of water molecules within tissues. This motion is characterized by the apparent …

Magnetic resonance (MR) diffusion imaging allows detection of cerebral ischemia within
minutes of onset, and the temporal evolution of diffusion characteristics enables …

Conventional magnetic resonance imaging (MRI) allows for a detailed noninvasive
visualization/examination of posterior fossa structures and represents a fundamental step in …

Since the first descriptions of nuclear magnetic resonance (MR) in the 1950s, there has
been interest in using MR to measure the diffusion properties of water. 1 With the advent of …

MR functional imaging, due to the improvement in ultra-speed imaging technology such as
echo-planar imaging, has become a very powerful technique since the beginning of the …

Among functional magnetic resonance imaging techniques, diffusion-weighted imaging
(DWI) plays an important role in the assessment of a wide variety of brain diseases. DWI …

Diffusion-weighted magnetic resonance (MR) imaging provides image contrast that is
different from that provided by conventional MR techniques. It is particularly sensitive for …

The major clinical use of diffusion-weighted imaging to date has been in evaluation of
cerebral infarction, at which it excels. However, diffusion-weighted imaging has also shown …

46. APPLIED RADIOLOGY© www. appliedradiology. com November 2005 property of
rotational invariance are typically computed from the original diffusion-weighted data, as …