GAFCHROMIC EBT photospectral dose response dependence on temperature and implications for flat bed scanning.

Purpose: Various forms of GAFCHROMIC film have been used for several years as radiographic media for measuring dose distributions. GAFCHROMIC EBT (GC-EBT) film is particularly useful for clinical dose ranges. This thin film dosimeter develops a blue color (lambdamax approximately 635 nm) when irradiated with ionizing radiation.

[Sentinel node biopsy in breast cancer--a minimally invasive procedure for staging of the axilla].

Clinical examinations and imaging methods are not sufficiently reliable for an exact staging of axillary nodes in breast cancer. The sentinel node biopsy concept is a minimally invasive procedure to locate and remove the first and important nodes responsible for draining a tumor. Histologic examinations using immunohistochemical methods permit more accurate staging than hematoxylin and eosin staining alone.

[Diagnosis of radionuclide uptake using samples and excretion measurements].

Diagnosis of internal contamination with radionuclides can be achieved by body or organ counting and by analysis of samples of intake or excretion. Sample counting from air, drinking water, food etc. is preferred in environmental contamination and may be used to estimate average body burden and internal dose.

[The supply of iodine in the province of Vorarlberg].

For evaluation of iodine supply in Vorarlberg, Austria, iodine urine excretion was measured in 299 patients. The Mean was 74,3 +/- 53,6 micrograms J/g Cr, the Median 61 micrograms J/g Cr. 79% of the patients showed an iodine deficiency I according to WHO classification and 41% an iodine deficiency II.