Soon MRI to Create Images of Blood Flow Inside Body

by VR Sreeraman on  July 23, 2007 at 5:25 PM Research News   - G J E 4
Soon MRI to Create Images of Blood Flow Inside Body
Researchers at the Beth Israel Deaconess Medical Center in Boston, US, have come up with an innovative way of using MRI to create images of fluid flow inside the body.

Magnetic resonance imaging (MRI) produces detailed images of the inner body. It works by aligning the nuclei of atoms using a powerful magnetic field, and then zapping them with radio waves.

The way the nuclei re-emit radio waves can reveal all kinds of clues about their environment - for instance, its chemical composition.

Now, David Alsop, a professor of radiology at the institute has found out a way to uncover how a sample of nuclei is moving, within a fluid.

This can be done by zapping them with a focused sequence of radio pulses, which distinguishes them from similar nuclei nearby. It can then be seen how they move when the pulses are re-emitted.

According to Prof. Alsop, the technique could be particularly useful for studying the detailed pattern of blood flow within the brain.

Source: ANI

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