Do 3D printed kidney models help me understand my renal stones better than CT scans?
If you have kidney stones, your doctor may show you a CT scan to explain where the stones are and how they plan to remove them. But CT scans are 2D images, and it can be hard to picture the 3D shape of your kidney and stones. 3D printed models are physical copies of your kidney made from your CT scan data. Research suggests that holding and seeing a 3D model helps patients understand their condition better than looking at a flat CT image.
What the research says
A 2024 study compared 3D printed kidney models to standard 2D CT scans in patients preparing for stone surgery (PCNL). Patients who were shown a 3D model of their own kidney reported better understanding of their condition and higher satisfaction than those who only saw CT images 1. Another study from 2017 found that after seeing a personalized 3D printed model, patients improved their understanding of basic kidney anatomy by 60% 7. For doctors in training, 3D models also help: one study showed residents were 86% better at identifying kidney structures after using a 3D model 6. While CT scans are essential for diagnosis, 3D models appear to be a powerful tool for explaining your specific stone location and the planned surgery.
What to ask your doctor
- Would a 3D printed model of my kidney be available to help me understand my stone location?
- How does the 3D model compare to my CT scan in showing the size and position of my stones?
- Can the 3D model help explain the surgical approach you recommend for me?
- Are there any extra costs or delays if I request a 3D model?
- Will the model be made from my own CT scan data so it is specific to my anatomy?
This question is drawn from common patient questions about Nephrology and answered using cited medical research. We do not provide individualized advice.