Post on 24-May-2020
The concept of 3D printing in Transcatheter Valve
Replacement and beyond
Bompas GeorgiosM.Sc. B.Sc. Biomedical Engineer
University of Dundee, Scotland, UK
Medical 3D Printing
Medical Applications
Medical 3D Printing
Transform digital information to physical models
Stereo-lithography is the most common technique
Additive manufacturing - Layer by layer construction
Range of materials (polymers, resigns, metals, ceramic powder)
Selection of materials is related with application
Marija Vukicevic et al. 2017
Current limitations
Tissue like materials
Time consuming
Lack of clinical data
Cost
Medical 3D Printing
Role of 3D printing in TAVR
1. Replicates the exact anatomy of the Region of Interest (ROI)
2. Pre-surgical planning3. Use of patient specific 3D to
simulate the intervention4. Communication with other
teams regarding special cases5. Communication with
patients6. Enhance patients’ confidence
Segmentation
(Beth Ripley et al. 2016)
Precision
(Beth Ripley, et al. 2016)
Paravalvular Leakage
(Beth Ripley et al. 2016)
Paravalvular Leakage
(Beth Ripley et al. 2016)
Para-valvular Prediction(B
eth R
ipley et al. 2
01
6)
3D Printing and Mitral Valve• Bigger than Aortic Valve, sometimes difficult to
measure it
• 3D Printing Technology for TMVR shows promise ( Abdallah El Sabbagh et al 2017)
• Transesophageal Echocardiography (TEE) can be combined with 3D printing ( Feroze Mahmood MD et al 2015)
• Multi- material 3D printing from CT data can replicate the annulus, leaflets, chordae and papillary muscles for benchtop simulation of Mitraclip procedure
• Device articulation & LVOT indications, optimum
valve diameter
3D Printing and Mitral Valve
3D Printing & Lung arteries
Real Case
Real Case 1
Real Case 1
Real Case 1
Real Case 2
Real Case 2
Real Case 2
TV
MV
AA
Real Case 2
Real Case 2
Final Result
Conclusion
• 3D Printing can accompany other imaging modalities
• Shows huge potential on complex cases
• Enhance communication
• Technology/Materials needs to be further improved