A refrigeration unit that supplies cold water used to cool MRI components. Depending on the system configuration chillers are used to cool shield coolers, shim coils and sometimes the air conditioning.

From ISOL Technology

'Next generation MRI system 1.5T CHORUS developed by ISOL Technology is optimized for both clinical diagnostic imaging and for research development.
CHORUS offers the complete range of feature oriented advanced imaging techniques- for both clinical routine and research. The compact short bore magnet, the patient friendly design and the gradient technology make the innovation to new degree of perfection in magnetic resonance.'

(Cr(III)-labeled RBC's) Chromium labeled red blood cells have paramagnetic properties and potential as an intravascular MRI contrast agent. The labeling with chromium decreases the relaxation times of packed red blood cells (RBCs). The use of RBCs in nuclear medicine suggests a low toxicity.

See also Contrast Agents, Intravascular Contrast Agents, Blood Pool Agents.

The main problem with paramagnetic heavy metal ions in their native form is their toxicity. Complexation of the metal ion with organic ligand, while considerably decreasing toxicity, may alter paramagnetic properties of the metal. Chromium-EDTA complex was the first such agent tried, but problems with synthesis and long-term stability prevented its clinical application.

A series of rapidly recorded multiple images taken at sequential cycles of time and displayed on a monitor in a dynamic movie display format. This technique can be used to show true range of motion studies of joints and parts of the spine.