I run an airflow simulation (CFD) of your own nasal cavity, from your CT scan, and I write you a report: where the air goes, how fast, how much it rubs on the mucosa and how it warms up.
You fill out a form and share your CT scan. I do the rest.
I have already run more than 50 simulations of ENS noses, so I am starting to know what to look for. Who I am →
Gauges, cut views and a 3D you can rotate.Open the report →
Where the air goes, and how fast
The airflow shown as lines coloured by velocity, plus cut views taken at several levels of the nasal cavity.
Where the air rubs on the mucosa
The pressure exerted by the airflow on the walls. The higher the velocity gradient near the wall, the higher the WSS and it is the WSS that takes part in the airflow sensation.
How the air warms up
How the inhaled air is warmed up along the nasal cavity, mapped in 3D and on cut views.
| Data | Sample | Reference |
|---|---|---|
| Nasal resistance | 6.2 Pa | 7 to 17 Pa |
| Mean cross-sectional area | 347 mm² | 200 to 300 mm² |
| Mean mucosa perimeter | 305 mm | |
| Mean velocity | 0.81 m/s | |
| Mean Wall Shear Stress | 0.047 Pa | |
| Air temperature at 40 mm | 32.1 °C | |
| Pharynx size | 196 mm² |
Your figures, next to reference values
Every report ends with a table of figures. The nasal resistance and the cross-sectional area are compared with values taken from published studies.
With a virtual surgery, a second line shows the same figures after the modification.
The report, in video
A presentation of the simulation report.
What patients say
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One report, about 6 hours of work
The price is determined by the time I need to perform the simulation, extract the data and write the report.
- Simulation of your own nasal cavity
- Report with the 11 views and figures
- Figures compared with reference values
- Virtual implants or other modifications, discussed with you
- Second simulation on the modified model
- Before-and-after report
What the report contains
Cut and 3D view of Wall Shear Stress
The pressure exerted by the airflow on the walls. The higher the velocity gradient near the wall, the higher the WSS and it is the WSS that takes part in the airflow sensation.
Cut and 3D view of velocity
The airflow shown as lines coloured by velocity, plus cut views taken at several levels of the nasal cavity.
Cut and 3D view of temperature
How the inhaled air is warmed up along the nasal cavity, mapped in 3D and on cut views.
Nasal resistance
The pressure drop between the nostrils and the choanae. This is the resistance your nose opposes to the airflow.
Airflow imbalance between the two sides
How the airflow splits between the right and the left side, as a percentage.
Mean cross sectional area
The average area of the “emptiness” inside the nasal cavity.
Mean mucosal perimeter
The average mucosa perimeter, calculated over 5 sections. It represents the amount of mucosa.
Mean velocity
The average speed of the air going through the nasal cavity.
Mean air temperature at 40 mm from nostrils
How much the inhaled air has already been warmed up 40 mm after the nostrils.
Mean Wall Shear Stress
The average Wall Shear Stress, calculated over 3 sections. It reflects how much friction there is between the air and the mucosa.
Pharyngeal size
The cross-sectional area of the pharynx at its narrowest point. A value that is too low indicates a risk of obstructive sleep apnea.
Is it for you?
- You have ENS, or think you might, and you want to understand what happens inside your nose.
- You do not have ENS but your nose feels blocked (deviated septum, large turbinates…): the simulation shows exactly where the airflow is obstructed.
- Suffering from nasal obstruction? Read this before considering any surgery →
- You are considering a surgery (implant, filler) and want to see where the air would go, with the virtual surgery.
- You want an objective document to discuss with your ENT.
- You are looking for a diagnosis: the report describes the airflow, only a doctor can diagnose ENS.
- You expect a treatment plan: I show how the air flows, I do not prescribe.
- You do not have a CT scan of your sinuses.
How it works
- 1
Request a simulation
Fill out the request form.
- 2
Share your CT scan
In DICOM format, with the folder compressed into a .zip or .rar file. The video shows how to do it.
- 3
I run the simulation
Simulation, data extraction and report writing: about 6 hours of work.
- 4
You receive your report
In about 3 days, with all the views and figures listed above, like the sample report.
Tutorial. How to compress your DICOM folder and share it.
Virtual surgery
In addition to the fluid simulation service, I can perform virtual surgeries on your nasal cavity to simulate implants, for example. Here is the procedure:
First fluid simulation
I am performing an initial fluid simulation based on your scan to establish a baseline for comparison.
Virtual surgery
I discuss with you the placement and size of the virtual implants or any other structural modifications to your nasal cavity. Then, I adjust the 3D model accordingly.
Second fluid simulation
Finally, I perform a new fluid simulation to compare the results with the initial one. I provide you with a comprehensive report that includes the before-and-after results of your nasal cavity modifications.
Questions
What do you need from me?
Your CT scan in DICOM format. It allows an accurate 3D reconstruction of your nasal cavity.
How much does it cost?
The airflow simulation costs 120 €, and I deliver the report in about 3 days. A virtual surgery costs 120 € more, on top of the simulation.
How long does it take?
I deliver the report in about 3 days.
What is Wall Shear Stress (WSS)?
The pressure exerted by the airflow on the nasal walls. It is a key value to understand the sensation of airflow in Empty Nose Syndrome.
Which settings do you use?
A flow of 15 l/min, during inspiration, with a mucosa at 34 °C.
Is it a medical diagnosis?
No. I am neither a fluid mechanics researcher nor a doctor, and the results may be approximate. The purpose of the simulation is to give you an idea of the airflow and of the possible problems related to it.
Ready? Fill out the form and share your CT scan, I check it for free before you pay.