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Assessment of post-infarct ventricular septal defects through 3D printing and statistical shape analysis
Ashar Asif1, Andrew Iu Shearn1,2, Mark S Turner2
1Bristol Medical School, University of Bristol, Bristol Royal Infirmary, Upper Maudlin St, Bristol, BS2 8HW, UK.
Journal of 3D Printing in Medicine
|March 13, 2023
Summary
3D-printed models of post-infarct ventricular septal defects (PIVSD) aid clinical assessment and surgical planning. Statistical shape modeling is feasible for analyzing PIVSD morphology.
Area of Science:
- Cardiovascular Research
- Medical Imaging
- Biomedical Engineering
Background:
- Post-infarct ventricular septal defect (PIVSD) is a severe complication following myocardial infarction.
- Accurate assessment of PIVSD is crucial for effective patient management.
Purpose of the Study:
- To evaluate the utility of 3D-printing models in the clinical assessment of PIVSD.
- To assess the feasibility of statistical shape modeling for PIVSD morphological analysis.
Main Methods:
- Fifteen 3D-printed models of PIVSD, reconstructed from CT data, were evaluated by eight clinicians.
- Statistical shape modeling was applied to 3D meshes to determine the mean morphological configuration of defects.
Main Results:
- Clinicians found 3D models valuable for surgical planning, education, and device development, despite lacking dynamic representation.
- Morphological analysis via statistical shape modeling was feasible, identifying predominantly oval-shaped defects.
Conclusions:
- 3D-printed PIVSD models can supplement imaging for educational and procedural planning purposes.
- Statistical shape modeling presents a feasible approach for PIVSD morphological characterization.
