The aim of this study was to measure apparent diffusion coefficients in rat brain tissue
exposed to ouabain, glutamate, and N-methyl-D-aspartate and to compare them with apparent …

PURPOSE: We develop a realistic and flexible 4-D digital mouse phantom and investigate
its usefulness in molecular imaging research. METHODS: Organ shapes were modeled with …

The nuclear spin polarization of the noble gas isotopes 3 He and 129 Xe can be increased
using optical pumping methods by four to five orders of magnitude. This extraordinary gain in …

We present a method for rapid measurement of T1 relaxation times using gradient refocused
images at limited flip angles and short repetition times. This “variable nutation” techniques …

Three-dimensional digital brain atlases represent an important new generation of neuroinformatics
tools for understanding complex brain anatomy, assigning location to experimental …

Two healthy volunteers who had inhaled approximately 0.75 L of laser-polarized helium-3
gas underwent magnetic resonance imaging at 1.5 T with fast gradient-echo pulse sequences …

Using digital subtraction radiography, we study the basic modes of a granular material (here
sand) flowing through a flat hopper. These modes take the form of density waves whose …

We describe an atlas of the C57BL/6 mouse brain based on MRI and conventional Nissl
histology. Magnetic resonance microscopy was performed on a total of 14 specimens that were …

Effective pulmonary gas exchange relies on the free diffusion of gases across the thin tissue
barrier separating airspace from the capillary red blood cells (RBCs). Pulmonary pathologies…

The multilayered myelin sheath wrapping around nerve axons is essential for proper
functioning of the central nervous system. Abnormal myelination leads to a wide range of …