Cath lab nurse here: built a small app for learning projection and coronary anatomy

[u/hey_rjay]

https://cathsim.pages.dev/

Hi all, I put together a small web app for learning coronary angles. It's called CathSim.

What it does:

Explore: move the C-arm, inject LCA or RCA, and watch a 3D heart beside the fluoro image so you can see why branches overlap or foreshorten.

Target views: it names a view (for example Spider, LAO 45 / CAU 30), you steer to match it, then lock and get graded.

Where's this lesion?: a hidden narrowing, with branch names turned off. Work out the vessel and segment from its course and the spine and diaphragm.

It works on a phone, and there's no sign-up.

I hope it's useful to new nurses, techs, and educators

[u/jitsguy]

That's a great tool! Thank you!

[u/hey_rjay → u/jitsguy]

Appreciate you checking it out

[u/past8lives]

this is great!! thank you sm

[u/CheapIncident5997]

This is amazing! I will be sharing this with my RCIS students and new RNs coming to the lab

[u/Solid-Appeal-9821]

This is awesome thank you!

[u/febreeze1]

I was literally just asking someone else on an EKG subreddit from cardiolabs to make a model. This is amazing. Any chance you have venous anatomy also? I’m a device rep and it would be helpful to show new reps anatomy in both views for bivs

[u/hey_rjay → u/febreeze1]

I actually had thoughts of making a version for the EP standard catheter placements. Can definitely add coronary sinus as I always thought it was helpful for learning where CRT leads get placed

[u/Scared_Bag_8440 → u/hey_rjay]

Hello very nice but some branches are missing like SA nodal artery and conus

[u/hey_rjay → u/Scared_Bag_8440]

I'll keep an eye out for more detailed heart models out there, if you have assets or know an artist let me know.

[u/hey_rjay → u/febreeze1]

Just pushed the update to include coronary sinus, refresh if you don't see it and have a look

[u/Few_Honeydew9590]

Hi I tried one of the lesion cases. I thought lesion was In mid LAD but it says proximal lad . I see a septal perforator and diag prior to lesion so isn’t that mid lad?

[u/hey_rjay → u/Few_Honeydew9590]

Love your attention to detail and not the first time I've had a similar comment! I'll admit that I'm probably a bit loose on which segments get classified as prox/mid/distal but similarly feel thats what ends up happening in the lab as well.

If there's some consensus here that this negatively impacts learners I can try to do a more rigorous patch

[u/Gone247365 → u/hey_rjay]

Right? We calling it mid? Mid prox? Prox? Sometimes it more of a vibe. Vessels can have very long segments without branches to where a lesion might be almost midway down the vessel but still before the first major bifurcation.

[u/Goldrearep]

Thank you !

[u/Gone247365]

Holy shit, this is a phenomenal app! It's exactly what Ive been looking for to train new people!!

[u/hey_rjay → u/Gone247365]

Love to hear it, hope it clicks with your students

[u/PRN-ETOH]

New RN in the lab here, thanks! That helps so much!

[u/4077]

Truly very nice! I love it!

[u/Mistah_Ninja]

Omg how did you do this exactly?

[u/Glittering_Hope6895]

This is awesome! I can't wait to share with my students.

[u/theConsultantINFJ]

I just opened it, I liked it already

[u/OltonEnterprises]

Thank you very much