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