Tutorial for Image Guided External Radiotherapy (TIGER)

Three-dimensional conformal radiotherapy and intensity modulated radiotherapy allow accurate dose delivery on target volumes. Nevertheless, contouring emerges as one of the most questionable steps in treatment planning procedures. TIGER has been designed to facilitate the learning of axial anatomical images to promote training and aid reproducibility in the contouring process. TIGER is designed to meet the needs of radiation oncologists, medical physicists in the field of radiotherapy, diagnostic radiologists, and radiation technologists.

TIGER is based on the Visible Human Project images data-set and provides an interactive human anatomy cross-sectional oriented resource to facilitate the interpretation of CT scan images usually contoured in daily practice. It offers a drill tool to facilitate the learning of a reproducible contouring procedure.

TIGER includes three different environments:

• Anatomic tutorial for a self-learning approach to axial body sections
• Contouring tutorial to practise contouring anatomical structures including a test programme prepared by tutors
• Teachers' tools to enable insertion of new outlines into the TIGER database to meet local needs or conventions and to use them in tutorial programmes

TIGER has a database of 432 corresponding CT-VH images and 1189 contours of 134 different anatomical structures and lymphatic drainage areas. These are grouped into six main anatomical sections:

• head and neck
• male thorax
• female thorax
• abdomen
• male pelvis
• female pelvis

ESTRO members can request access to TIGER by clicking here.