[Health risks from the use of NMR tomography and in vivo NMR spectroscopy]. / Gesundheitliche Risiken bei der Anwendung der NMR-Tomographie und In-vivo-NMR-Spektroskopie.

As a result of consultations with the Commission "Non ionizing Radiation" together with additionally appointed experts, the Federal Health Office has published "Recommendations on health risks caused by magnetic and high frequency electromagnetic fields in NMR-tomography and in-vivo-NMR-spectroscopy". The basis of these consultations was a list compiled by the authors on the effects from fields present during NMR application. This compilation contains some rough estimates. This publication is intended to document the compilation as a basis for recommendations published by the federal health office. Since such estimates need to be supplemented it is planned to review this compilation from time to time when new results are available.

Enhanced yield of chromosomal aberrations in human peripheral lymphocytes in vitro using contrast media in X-irradiation.

The influence of water-soluble iodized contrast media to radiation response was investigated by means of chromosomal aberrations in human peripheral lymphocytes in vitro. Contrast medium itself showed no substantial action in producing chromosomal aberrations. But contrast medium combined with X-rays increased radiation-induced chromosomal aberration yield, depending on the iodine concentration. This effect is obviously caused by the enhancement of radiation dose because of the photoelectric effect of iodine.