selective injection

se·lec·tive in·jec·tion

injection of contrast medium following selective catheterization of a branch artery or vein for angiography.
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Nonsurgical coronary interventions that we now perform routinely would not have been possible were it not for the discovery that selective injection of contrast material directly into the coronary arteries is actually innocuous.
Caption: Figure 2: (a) Digital subtraction angiogram (DSA) with selective injection through the common hepatic artery shows active extravasation from a small artery arising from the gastroduodenal artery stump.
Selective injection of both ECAs demonstrated normal appearing frontal and parietal meningeal branches without dural supply to the posterior frontal mass.
Because they are smaller than the size of a single cell, the nanotubes can provide for the highly selective injection of drugs into individual cells.
The '929 patent relates to the method and apparatus for selective injection of poultry eggs.
The proposal of stopping the sale of selective injections and medicines without prescription through drug authority was also discussed.

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