Uptake

The English term uptake means “uptake”, it is mostly used in medicine and describes the quantitative uptake or accumulation of a substance in a cell or a cell group ( tumor , metastasis , organ or part of an organ).

Since the imaging processes and the therapies of nuclear medicine are based on the absorption of radioactively marked substances, the term is used there very often.

Examples of this:

• The brain uptake index describes the uptake rate of substances across the blood-brain barrier .
• In thyroid scintigraphy , the ^99m Tc uptake, i.e. the uptake of radioactive technetium, is determined. The radio-iodine test measures the absorption of radioactive iodine.
• The uptake of a radioactively labeled sugar solution ( FDG ) is the underlying mechanism for finding tumors with the help of positron emission tomography . It is usually specified there as an SUV .

swell

• Jürgen Freyschmidt: Skeletal Diseases: Clinical-Radiological Diagnosis and Differential Diagnosis . 3. Edition. Springer, Berlin / Heidelberg 2008, ISBN 978-3-540-45529-5 , pp. 30 .
• Guidelines of the German Society for Nuclear Medicine: procedural instructions for the radioiodine test ( Memento from June 18, 2009 in the Internet Archive )