Cardiac. Now taking cases.
Patient-specific cardiac models and 3D planning, built from your CT in Nairobi, in days.
Real adult coronary CT angiogram, scan 100 of the STACOM 2025 open left atrial appendage dataset (Hansen et al., MIT licence). Segmented and rendered by AToA.
Where a model changes the decision
Structural intervention
Across eight studies of left atrial appendage closure, planning on a printed model cut device-size disagreement and leaks to about a fifth of the imaging-only rate (risk ratio 0.19). Printed aortic roots have been used to predict paravalvular leak and coronary obstruction risk before TAVI.
DeCampos 2022, Int J Cardiol. Qian 2017, JACC Cardiovasc Imaging. Russo 2022, Heart Lung Circ.
Congenital heart disease
In a ten-centre prospective study, four patients first considered for conservative management or single-ventricle palliation received a successful biventricular repair after the team inspected the 3D print. Printed anatomy matched the imaging to within a fraction of a millimetre (mean bias -0.27 mm).
Valverde 2017, Eur J Cardiothorac Surg.
Cardiac tumours
Printed tumour models with the mass made transparent let surgeons plan maximal debulking in infants while protecting coronary flow. Reports in adults with large and paracardiac tumours describe the same use for planning margins.
Riggs 2018, Transl Pediatr. Al Jabbari 2016, J Card Surg. Pérez-Cualtán 2024, J Cardiothorac Surg.
Cardiomyopathy and advanced heart failure
Surgeons have performed the septal myectomy on a tissue-like print before the operation, and the volume they resected matched the real specimen. In one centre's advanced heart failure programme, 3D planning guided four assist-device implants and steered two very high-risk patients to transplant instead.
Hermsen 2017 and 2018, J Thorac Cardiovasc Surg. Stepanenko 2023, Front Cardiovasc Med.
Kenya
SHA pays percutaneous ASD, VSD and PDA device closure as a single specialised package of KES 414,400. A device sized right the first time keeps the procedure, and the hospital, inside it.
Tariffs for Healthcare Services, Legal Notice 56 of 2025, as amended to 8 May 2026.
Congenital case study
What you are looking at is the blood pool: the inside of the heart and its vessels, cast as a solid, as if the walls were removed. The pulmonary valve never formed. Blood reaches the lungs through major aortopulmonary collateral arteries, the MAPCAs, the smaller vessels branching away from the great arteries.
The surgeon's question is which collaterals to bring together into one pulmonary supply, and whether they can be reached from one incision. That is a three-dimensional question. A printed model answers it in the hand.
| Patient | Neonate, 3.02 kg, 45.7 cm |
|---|---|
| Model size | About 5 cm across |
| Best printed as | Rigid multi-colour print for orientation, or a soft resin print for hands-on handling |
| Source | NIH 3D Heart Library, Case Model 24 (public domain) |
How it works
Cardiac CT or MRI as DICOM, from PACS or on disc. We de-identify it on receipt.
Chambers, vessels, coronaries, valves and lesion, each as its own structure.
2 to 3 daysA 3D review on your screen. You decide what the model must answer, and you sign off before anything is printed.
About 1 week, iterativeRigid multi-colour for orientation. Soft, translucent biomedical resin for cutting, suturing and device testing.
Biocompatible resin soft enough to cut, suture and press a device against, clear enough to see the chamber inside.
Chambers, tumour, coronaries and oxygenated against deoxygenated blood, told apart at a glance across an MDT table.
For the clinician who wants to publish
Rheumatic valve disease, late-presenting congenital lesions, peripartum and HIV-associated cardiomyopathy: the cases you see every week are the ones the 3D printing literature barely covers.
Bring the clinical question and lead the paper. We handle segmentation, printing, measurement and the methods section, and every case is logged in a registry built for publication from day one.
Heart Failure Masterclass 2026, Pullman Nairobi
Many of you told us the science was what stopped you at our table. The labels did not do it justice. Here is what each piece was, the clinical question it answers, and where it came from.
Congenital
Question: how do the ventricles, the defect and the collateral supply relate in three dimensions?
Real neonatal patient at true scale, multi-colour rigid print. It is the model you can rotate above. NIH 3D Heart Library, Case Model 24 (public domain).
Structural
Question: what size and shape is this appendage before an occluder goes in?
Real patient CT, scan 100 of the STACOM 2025 open dataset, one of its 685 scans with a complete appendage. Translucent resin. The same heart is in the explorer at the top of this page: choose "Left atrial appendage".
Cardio-oncology
Question: where does the mass sit against healthy myocardium?
A section of heart wall with the mass modelled in, printed in soft resin so the margin can be felt. NIH 3D Heart Library, Case Model 120 (public domain).
Correction: our booth slide paired this model with imaging of a calcified amorphous tumour, which is a different lesion. The source imaging for Case 120 is not public.
Cardiotoxicity
Question: what does cardiotoxicity do to the ventricle?
An illustrative teaching pair built from real chamber geometry, not a specific patient: the same ventricle before and after dilatation, printed translucent.
Start with one case
Use the form below or WhatsApp. No names, no hospital numbers; just the clinical question and the imaging you have.
Honestly, including when it cannot. You get the timeline and the cost before any work starts.
Planning review only, a printed model, or both. You sign off every step.