critical organ

crit·i·cal or·gan

the organ or physiologic system that for a given source of radiation would first reach its legally defined maximum permissible radiation exposure as the dose of radiation is increased; for example, the kidney is the critical organ, receiving the most radiation, when Tc-99m dimethylsuccinic acid is given.

crit·i·cal or·gan

(krit'i-kăl ōr'găn)
The organ or physiologic system that for a given source of radiation would first reach its legally defined maximum permissible radiation exposure as the dose of radiopharmaceutical is increased.
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What, if anything, should the rest of the world do to save a critical organ in our planet's body?
The two neighbours are akin to Siamese twins sharing a critical organ and whose separation would be mutually injurious.
Especially in cases of left-sided breast cancer, the contribution of RT to survival can be achieved by meticulous adherence with dose limits to critical organ and coronary artery diseases (Left Anterior Descending-LAD) depending on RT.
Dosimetric and clinical toxicity comparison of critical organ preservation with three-dimensional conformal radiotherapy, intensity-modulated radiotherapy, and RapidArc for the treatment of locally advanced cancer of the pancreatic head.
An increased risk of bleeding is an expected complication of treatment with a blood-thinning medication; however, there was no significant difference between the two groups in terms of life-threatening, major, or critical organ bleeding.
Now imagine a transplant patient waiting indefinitely for a a critical organ while his life hangs on a balance as he waits for an exact organ match.
(22) Based on this and other preclinical work, possible SBRT doses include 30 to 45 Gy in 3 to 5 fractions depending on critical organ tolerance and risk of toxicity (Table 2).
Other risk factors of hypoglycemia include alcohol, critical organ failure (kidney, heart, or liver), drug interactions with other medications, critical illness, hormone deficiencies and tumors
Bleeding into a critical organ was reduced by 31%, while the risk of fatal bleeding was cut in half.
"It starts to move the site more into the realm of an Internet radio station than a critical organ, and we've all seen how radio stations can be, have been and always were susceptible to corruption."
Doctors had to restart his heart twice within ten minutes of him being born and in the following days he suffered critical organ failure.
To close this gap, the following broad areas of research topics need attention: a) better health tracking and monitoring data for chronic diseases, b) more comprehensive and longitudinal biomonitoring of environmental agents that can be linked with specific molecular/biochemical markers of exposure and subsequent health outcome data, and c) more epidemiologic research and testing of environmental agents to better define their effects on the adult and developing brain, as well as other critical organ systems.

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