Principle of examination: Imaging of the heart cavities by circulating labeled autologous erythrocytes in the bloodstream. Quantification of the recording allows determination of left ventricular ejection fraction, right ventricular ejection fraction. Indications: detection of cardiotoxicity of cytostatics in oncological patients cardiomyopathies Patient preparation: none Duration of examination: approx. 45 minutes Radiopharmaceutical: 99mTc – ERY (Technetium labeled autologous erythrocytes) Method of application: Intravenous Examination methodology: After the patient’s blood is drawn, the erythrocytes are labeled with 99mTc and the blood is injected back. After about 10 minutes, the patient lies down on the gamma table and the gamma detector is set to the LF position and a gated static recording is started with the help of the ECG. This takes approximately 10 minutes.