Creating vascular models by postprocessing computed tomography angiography images: a guide for anatomical education.

Area of Science:

• Medical Education
• Anatomical Modeling
• 3D Printing Technology

Background:

• Computed tomography angiography (CTA) images are increasingly used to create patient-specific 3D printed anatomical models.
• These models offer a novel approach to anatomy education for medical students and professionals.

Purpose of the Study:

• To review recent innovations in the process of creating 3D printed anatomical models from CTA data.
• To explore the application of these models in undergraduate and postgraduate medical education.

Main Methods:

• CTA images of the aortic arch were processed using Google SketchUp software to generate 3D models.
• Models were saved in stereolithography format and printed using polylactic acid material with a Makerbot 3D printer.

Main Results:

• A specific case identified a two-vessel left aortic arch, including the brachiocephalic trunk and left subclavian artery.
• The resulting life-like 3D models allowed for detailed, hands-on examination and 360° rotation.

Conclusions:

• Medical imaging-guided 3D printed anatomical models are adopted for their tactile feedback and enhanced visuospatial appreciation of complex structures.
• These vascular models are valuable for preoperative planning, intraoperative guidance, and surgical training.