IMAIOS e-Anatomy

e-Anatomy is an online atlas of human anatomy on medical imaging from IMAIOS, a French company, written and labelled mainly by the radiologists Antoine Micheau and Denis Hoa. It is built for radiologists, residents, medical and dental students and anyone who needs to recognise anatomy on CT, MRI, radiographs and labelled illustrations. It runs on the web and in apps for iPhone, iPad and Android. Several modules are free, including the dental ones described below, but most of the atlas needs a paid plan, so it is shareware (conditionally free). An e-Anatomy download means the free mobile app from the App Store or Google Play; there is no separate Windows or Mac program.

For dentistry, e-Anatomy is one of the few general atlases with real dental modules: a free Teeth atlas of 54 illustrations, a free Oral cavity module, a free MRI module of the temporomandibular joint and a premium Dental CBCT module with labelled axial, sagittal, frontal, panoramic and cross-sectional views.

e-Anatomy at a glance

What it does

• Imaging atlas – more than 8,900 labelled anatomical structures on CT, MRI, radiographs, nuclear medicine images and anatomical diagrams.
• Twelve languages – more than 870,000 translated labels, including Latin terminology based on Terminologia Anatomica.
• Teeth module (free) – 54 illustrations covering dental terminology, surfaces, cusps and roots, the FDI and Universal numbering systems, occlusion, the maxillary and mandibular arches, a panoramic X-ray diagram and deciduous teeth. Each permanent tooth is shown in mesial, distal, vestibular, palatal or lingual and occlusal views.
• Oral cavity module (free) – 114 illustrations of the mouth, palate, tongue, salivary glands and oral pharynx with vessels and nerves.
• Temporomandibular joint MRI (free) – labelled MRI of the TMJ, including the articular disc and the muscles of mastication.
• Dental CBCT (premium) – a labelled CBCT exam acquired on a Planmeca ProMax 3D, with orthogonal planes, curved MPR with tooth cross-sections, panoramic reconstructions and 3D volume rendering. The third molars are absent in this patient.
• Other head and neck modules – CT face, CT and MRI of the head and neck, skull illustrations and temporal bone CT (premium).
• Labelled image series – move through each series with the structures labelled on the images; every module also lists its anatomical parts by name.

How dental teams use it

Learn tooth nomenclature and numbering

1. Open e-Anatomy, go to Head and Neck and choose the Teeth module.
2. Start with the terminology and numbering illustrations to compare FDI and Universal notation.
3. Go through each permanent tooth in its five views and name the surfaces and cusps before reading the labels.

Practise reading dental CBCT anatomy

1. With a premium plan, open the Dental CBCT module.
2. Scroll the axial series and follow the mandibular canal, the maxillary sinus floor and the roots of the molars.
3. Switch to the curved reconstruction and cross-sections to see how each tooth and its alveolar bone look in implant-planning views.
4. Compare with your own anonymised cases in a DICOM viewer such as MicroDicom or 3DimViewer.

Review TMJ anatomy on MRI

1. Open the free Temporomandibular joint module.
2. Identify the condyle, the articular disc and the lateral pterygoid, temporalis and masseter muscles on the labelled sequences.

Install and first run

• Web: open e-Anatomy on imaios.com in a current browser. Modules are tagged FREE or PREMIUM in the atlas list. Some content may require signing in with a free IMAIOS account.
• iPhone and iPad: install “IMAIOS e-Anatomy” from the App Store (iOS 16.6 or later). The website itself recommends the app on mobile.
• Android: install IMAIOS e-Anatomy from Google Play.
• Use the same IMAIOS account on all devices; a paid plan unlocks premium modules everywhere.
• Groups such as dental schools can buy licences for several users and manage them centrally, including access by IP address.
• For your own patients’ DICOM files, IMAIOS publishes a separate free program, IMAIOS DICOM Viewer.

Limitations

• Most imaging modules, including Dental CBCT, CT face and skull illustrations, are premium.
• It is a reference atlas of prepared cases; you cannot load your own scans into e-Anatomy.
• No 3D models to rotate like in Complete Anatomy or BioDigital; teaching is based on image stacks and illustrations.
• Needs an internet connection for the web version.
• The Dental CBCT case has no third molars, so wisdom-tooth anatomy must be studied elsewhere.

e-Anatomy vs alternatives

e-Anatomy is the strongest of this group for imaging anatomy. Complete Anatomy offers 3D models with radiology images alongside, but no dental CBCT case. Visible Body has a 3D Dental Anatomy add-on focused on tooth shape. BioDigital Human and Zygote Body give free 3D models of the teeth and jaws in a browser. The free Open Anatomy head and neck atlas is CT-based, but without dental structures.

FAQ

Is e-Anatomy free?

Partly. Modules marked FREE, such as Teeth, Oral cavity and Temporomandibular joint MRI, are free to use; premium modules need a paid individual or group plan.

Is there an e-Anatomy download for Windows or Mac?

No desktop program is offered. On a computer, use the web version in a browser; the downloadable apps are for iPhone, iPad and Android.

Does e-Anatomy have dental anatomy?

Yes: a free 54-illustration Teeth atlas, a free Oral cavity module, a free TMJ MRI module and a premium Dental CBCT module.

Can I use e-Anatomy on a Mac?

Yes, through the web version in any current browser on macOS.

What is a free alternative to e-Anatomy?

For free 3D anatomy use BioDigital Human’s free plan or Zygote Body; for your own CBCT scans use a free DICOM viewer such as MicroDicom.

Does e-Anatomy open my own DICOM files?

No. e-Anatomy shows IMAIOS’s prepared cases. IMAIOS offers a separate free IMAIOS DICOM Viewer for your own images.

Who makes e-Anatomy?

IMAIOS, a French company; the atlas is authored by radiologists Antoine Micheau, MD, and Denis Hoa, MD.

Last checked against official sources: 28 September 2026 (developer website: imaios.com). Versions and licence terms change — confirm on the developer's site before deploying in a clinic.