Tomography of hydrogen with nuclear magnetic resonance.

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Abstract
A NMR imager with a 6.5-cm aperture is described. Spatial resolution is 0.47 .times. 2.0 mm with a slice thickness of 8.4 mm. Contrast resolution is 3% for a 4 min image. Due to the excellent spatial resolution and high contrast between soft tissues, the images provide a great deal of detail and reconstruction artifacts due to motion are avoided. Blood flow is visible. Selected enhancement of lesions in rats through the modification of software-controlled operational parameters is demonstrated.