Three‐Dimensional NMR microscopy of rat spleen and liver

Xiaohong Zhou, Richard L. Magin, Jay Alameda, Harry A. Reynolds, Paul C. Lauterbur

Research output: Contribution to journalArticle

Abstract

Three‐dimensional microscopic NMR images of spleen and liver specimens from rats injected wlth dextran magnetite particles and from controls were obtained at 4.7 T, using a specially designed probe in conjunction with a 3D filtered back projection reconstruction algorithm. All of the images were reconstructed as 64 3 arrays with (25 μm) 3 isotropic voxels. With the aid of the MR contrast agent, the red pulp and marginal zone of the spleen and the portal triad of the liver could be distinguished from the surrounding tissue in T 2 ‐weighted images. For mature rat spleen, natural contrast in T 2 ‐weighted images was found to distinguish the same features. Histolog‐ical examinations of the tissues with and without contrast agent were also performed using an optical microscope. Microscoplc NMR images, despite their lower resolution, clearly revealed many features seen in the optical images.

Original languageEnglish (US)
Pages (from-to)92-97
Number of pages6
JournalMagnetic Resonance in Medicine
Volume30
Issue number1
DOIs
StatePublished - Jul 1993

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Keywords

  • dextran magnetile
  • liver
  • microscopy
  • projection reconstruction
  • spleen

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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