| 摘要 |
<p>Substantially homogeneous aqueous suspensions of low density microspheres ar e presented as contrast media for imaging the gastrointestinal tract and other body cavities using computed tomography . In one embodiment, the low density microspheres are gas-filled. With computed tomography, the contrast media serve to change the relative density of certain areas within the gas- trointestinal tract and other body cavities, and improve the overall diagnostic efficacy of this imaging method.</p> |
