We defined the following learning objectives for our hands-on workshop: trainees should be enabled to
correctly perform the clinical examination of the female breast, localize the tumor bed, and describe clinical findings in technical terms;
describe the principles of brachytherapy and its areas of application in breast cancer in consideration of alternative radiation techniques;
perform correctly the implantation of single-leader catheters in predefined positions for breast brachytherapy;
assess the accuracy of the catheter position a) relative to the tumor bed and b) relative to each other;
describe the target volume for breast cancer brachytherapy; and
evaluate the actual implanted catheter position in terms of the resulting dose distribution.