• This atlas of cross sectional anatomy of the knee is based on imagery by magnetic resonance (IRM). Each anatomical structure is labeled in an interactive way. This tool is at the same time useful for the training and teaching of the anatomy, but also with the experts to illustrate a course or an explanation of a pathology to a patient, in particular within the framework of the ruptures of the cross ligaments or the lesions of the meniscuses.
• This software is open and free for any public curious about anatomy, but it was particularly conceived for the radiologists, the rheumatologists, the orthopedic surgeons, the general practitioners, the students and external in medicine (assistance with the preparation of the boarding school), and the manipulators in radiology.

Cross-sectional anatomy: IRM of the knee

• A MRI of knee on a healthy subject was performed in the 3 plans of space (coronal, axial, sagittal) commonly used in osteoarticular imagery, with two weightings most commonly used to explore the musculo-skeletal pathology of the knee: spin-echo T1 and proton-density with fat saturation sequences.
• The images obtained were exported in JPEG starting from data DICOM stored on the PACS (Picture Archiving and Communicating System).
• The images were postprocessed with Adobe Photoshop (realignment, reduction of size in order to adapt to the electronic format).
• The interactive and dynamic contents were added with Macromedia Flash.

Illustrations: 3D osseous model of the knee

• We added 3D illustrations of the bones of the knee (femur, tibia, fibula (peroneal) and patella (kneecap)) that were labeled. They were created by volume rendering from a CT-scan of the knee. These illustrations allow basic anatomical recalls in anatomy of the knee and make it possible to be located more easily on an IRM by using the osseous cross-references.

Anatomy out of cuts of ankle and the foot in IRM: to post the anatomical legends

• The menu “anatomical structures” allows the user to visualize only the labels of interest:
  • Os
  • Articulations
  • Ligaments
  • Muscles
  • Tendos
  • Fascia
  • Arteries
  • Veins
  • Nerves
• The menu “weightings” makes it possible to choose the type of sequence IRM to be viewed: spin-echo T1 or proton-density with fat saturation sequences.
• The menu “plans” allows to choose the visualization of the knee in one of the 3 plans of space: axial, coronal, sagittal and to reach the osseous 3D volume renderings.
• The left side menu, provides cross-references to help for a better orientation in space for the user. This one moreover is facilitated by a medical illustration of the osseous skeleton based on a 3D illustration by volume rendering.