# Pulse Physiology Engine

**URL:** https://discourse.kitware.com/c/pulse-physiology-engine/5.md?page=2

[Latest](https://discourse.kitware.com/latest.md) · [Categories](https://discourse.kitware.com/categories.md)

**Page:** 3

---

## [Unity Asset and Vision Pro](https://discourse.kitware.com/t/unity-asset-and-vision-pro/1241)

<div class="topic-metadata">

**Author:** [@Ayfel](https://discourse.kitware.com/u/Ayfel)\
**Replies:** 18\
**Last updated:** [June 17, 2024, 3:01pm UTC](https://discourse.kitware.com/t/unity-asset-and-vision-pro/1241 "2024-06-17T15:01:48Z")

</div>

Hi, Can you recompile the dlls so it is compatible with Vision Pro? We have it working on other platforms otherwise. Best, Alejandro

---

## [Oscillation in vital signs after infusion](https://discourse.kitware.com/t/oscillation-in-vital-signs-after-infusion/1304)

<div class="topic-metadata">

**Author:** [@Yiwen\_Hu](https://discourse.kitware.com/u/Yiwen_Hu)\
**Replies:** 4\
**Last updated:** [June 5, 2024, 5:49pm UTC](https://discourse.kitware.com/t/oscillation-in-vital-signs-after-infusion/1304 "2024-06-05T17:49:59Z")

</div>

Hi, I’m trying to simulate propofol infusion. I did nothing in the first 10 minutes just for comparison. Then, I followed this infusion scheme: 100mL/min for 2 ug/mL for 15 minutes 100mL/min for 5 ug/mL for 15 minutes …

---

## [Define my own substance](https://discourse.kitware.com/t/define-my-own-substance/1298)

<div class="topic-metadata">

**Author:** [@Yiwen\_Hu](https://discourse.kitware.com/u/Yiwen_Hu)\
**Replies:** 8\
**Last updated:** [May 31, 2024, 1:59pm UTC](https://discourse.kitware.com/t/define-my-own-substance/1298 "2024-05-31T13:59:04Z")

</div>

Hi! I’m wondering if I can use the serialize\_from\_file to define a substance in the python SDK of Pulse Physiology Engine, as I didn’t find such a method in the python codes? Many Thanks

---

## [Help with Android Build in Unreal 5](https://discourse.kitware.com/t/help-with-android-build-in-unreal-5/1206)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 14\
**Last updated:** [May 21, 2024, 8:48pm UTC](https://discourse.kitware.com/t/help-with-android-build-in-unreal-5/1206 "2024-05-21T20:48:35Z")

</div>

Using the Pulse Engine with Unreal 5. We are using the older version where there were 4 lib files. I added it to Public AdditionalLLibraries in the Build.cs File. It builds properly for windows but it throws the followin…

---

## [Support For Bare Metal Targets (E.g. STM32)](https://discourse.kitware.com/t/support-for-bare-metal-targets-e-g-stm32/1281)

<div class="topic-metadata">

**Author:** [@jkablan](https://discourse.kitware.com/u/jkablan)\
**Replies:** 2\
**Last updated:** [April 30, 2024, 5:49pm UTC](https://discourse.kitware.com/t/support-for-bare-metal-targets-e-g-stm32/1281 "2024-04-30T17:49:31Z")

</div>

Hi, I’m wondering is the engine intended to be used on bare metal target e.g. STM32H7? These are pretty resource constrained chips e.g. 1MB of RAM. 2MB of flash. Typically we do not free memory from the heap after alloc…

---

## [Changing step size](https://discourse.kitware.com/t/changing-step-size/1068)

<div class="topic-metadata">

**Author:** [@bob.marinier](https://discourse.kitware.com/u/bob.marinier)\
**Replies:** 7\
**Last updated:** [April 26, 2024, 2:56pm UTC](https://discourse.kitware.com/t/changing-step-size/1068 "2024-04-26T14:56:40Z")

</div>

Internally, Pulse uses a 0.02s step size. I’m interested in increasing this to see if we can make pulse run faster. I realize this will degrade the accuracy, but it may be that there is a sweet spot for our purposes wher…

---

## [Crash in packaged game in UE5.3](https://discourse.kitware.com/t/crash-in-packaged-game-in-ue5-3/1279)

<div class="topic-metadata">

**Author:** [@Varun\_Madhu](https://discourse.kitware.com/u/Varun_Madhu)\
**Replies:** 2\
**Last updated:** [April 20, 2024, 12:00am UTC](https://discourse.kitware.com/t/crash-in-packaged-game-in-ue5-3/1279 "2024-04-20T00:00:55Z")

</div>

Hi, I am using the pulse physiology engine plugin in UE5.3. The app runs properly in PIE but when running a packaged game, there is a crash. We are running the simulation on a different thread.

---

## [Problem with new version of Pulse when Deserialising Patient](https://discourse.kitware.com/t/problem-with-new-version-of-pulse-when-deserialising-patient/1277)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 10\
**Last updated:** [April 18, 2024, 8:08pm UTC](https://discourse.kitware.com/t/problem-with-new-version-of-pulse-when-deserialising-patient/1277 "2024-04-18T20:08:26Z")

</div>

Hey, So in a Vanilla Project, we are trying to call the SerializeFromFile and passing in the StandardMale@0s.json File. I keep Getting this error that stops it from serialising anymore. Used to work fine in the Older V…

---

## [Dehydration](https://discourse.kitware.com/t/dehydration/1276)

<div class="topic-metadata">

**Author:** [@frime](https://discourse.kitware.com/u/frime)\
**Replies:** 10\
**Last updated:** [April 17, 2024, 2:19pm UTC](https://discourse.kitware.com/t/dehydration/1276 "2024-04-17T14:19:35Z")

</div>

Just to make sure: There is no value provided by the engine describing current “dehydration”, right? (Stated here: Energy Methodology Future Works).

---

## [Energy Methodology Future Works](https://discourse.kitware.com/t/energy-methodology-future-works/1267)

<div class="topic-metadata">

**Author:** [@Davide-Ferrari](https://discourse.kitware.com/u/Davide-Ferrari)\
**Replies:** 1\
**Last updated:** [April 8, 2024, 1:25pm UTC](https://discourse.kitware.com/t/energy-methodology-future-works/1267 "2024-04-08T13:25:19Z")

</div>

Hi, I have read that some of the future works of Pulse Energy Methodology will be the scaling of the energy store maximums and maximum work rate based on physical conditioning, fed/starvation levels, and body compositio…

---

## [Patient Assessment](https://discourse.kitware.com/t/patient-assessment/1271)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [April 8, 2024, 1:05pm UTC](https://discourse.kitware.com/t/patient-assessment/1271 "2024-04-08T13:05:12Z")

</div>

When i use m\_pulseEngine-\>GetPatientAssessment() function (Passing in a refererence to a Urinalysis) some of the Value return null eg. Bilirubin. Is there another step i need to do before i Get Patient Assessment ?

---

## [Debug Symbols for Compiled versions of Pulse](https://discourse.kitware.com/t/debug-symbols-for-compiled-versions-of-pulse/1270)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [April 4, 2024, 1:19pm UTC](https://discourse.kitware.com/t/debug-symbols-for-compiled-versions-of-pulse/1270 "2024-04-04T13:19:47Z")

</div>

We are trying to build a custom version of the Pulse Engine. There are some issues we are facing ad we wanted to know if we could build Pulse.dll with Debugger Symbols ?

---

## [Implementing arythmia patterns](https://discourse.kitware.com/t/implementing-arythmia-patterns/806)

<div class="topic-metadata">

**Author:** [@jeanf](https://discourse.kitware.com/u/jeanf)\
**Replies:** 11\
**Last updated:** [March 28, 2024, 2:14pm UTC](https://discourse.kitware.com/t/implementing-arythmia-patterns/806 "2024-03-28T14:14:45Z")

</div>

Hello, I wish to implement new “states” for the engine as to simulate a variety of arythmic cardiac patterns. I am wondering if you might have advise or guidance on how to go about that? where to look? where to start? D…

---

## [Issues with Deserializing Engine.](https://discourse.kitware.com/t/issues-with-deserializing-engine/1257)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 3\
**Last updated:** [March 25, 2024, 7:06pm UTC](https://discourse.kitware.com/t/issues-with-deserializing-engine/1257 "2024-03-25T19:06:50Z")

</div>

Lets say i run the engine for a while and the Heart Rate moved as follows HR @ 0s : 72 HR @ 20s : 65 HR @ 40 s : 50 And i have Serialised and Saved the Engine at each of these event. After 40s I ask the Engine to LO…

---

## [Changes in SEDataRequest.](https://discourse.kitware.com/t/changes-in-sedatarequest/1259)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [March 22, 2024, 1:48pm UTC](https://discourse.kitware.com/t/changes-in-sedatarequest/1259 "2024-03-22T13:48:30Z")

</div>

in the older versions of the Unreal Plugin we were able to set the SEDataRequest PropertyName via Code. Now that i have moved to the latest version of the Plugin the Function is protected Is there a different approach to…

---

## [Cant Find SELObarPneumoniaExacerbation](https://discourse.kitware.com/t/cant-find-selobarpneumoniaexacerbation/1258)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [March 21, 2024, 2:13pm UTC](https://discourse.kitware.com/t/cant-find-selobarpneumoniaexacerbation/1258 "2024-03-21T14:13:05Z")

</div>

Has this Action been Removed from the Main And Integration branch

---

## [Compiling the source code to use with unreal plugin](https://discourse.kitware.com/t/compiling-the-source-code-to-use-with-unreal-plugin/1189)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 4\
**Last updated:** [March 15, 2024, 11:35am UTC](https://discourse.kitware.com/t/compiling-the-source-code-to-use-with-unreal-plugin/1189 "2024-03-15T11:35:43Z")

</div>

I need a few additional actions for some of my scenarios which is why i am tying to edit the source code on a personal repo. I need to now use it with the Unreal Plugin. Is there a Workflow to replace the files in the …

---

## [Need Help With Creating a Basic Action](https://discourse.kitware.com/t/need-help-with-creating-a-basic-action/1251)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [March 14, 2024, 12:57pm UTC](https://discourse.kitware.com/t/need-help-with-creating-a-basic-action/1251 "2024-03-14T12:57:16Z")

</div>

I am trying to increase the Respiration Rate and would like to Build an Action for the Same. The Action should only increase and decrease the respiration rate. Would I need to change any other dependent Variables as we…

---

## [Unstable patient does not get unstable](https://discourse.kitware.com/t/unstable-patient-does-not-get-unstable/1237)

<div class="topic-metadata">

**Author:** [@Finn\_Marquardt](https://discourse.kitware.com/u/Finn_Marquardt)\
**Replies:** 7\
**Last updated:** [March 11, 2024, 1:36pm UTC](https://discourse.kitware.com/t/unstable-patient-does-not-get-unstable/1237 "2024-03-11T13:36:05Z")

</div>

We try to simulate a patient with a spleen rupture after a bike crash. Currently I just trigger a internal spleen rupture with severity 1 but the patient doesn’t really get unstable. Over a timeframe of ~30min the heartr…

---

## [How to set the initial state of a patient in the engine](https://discourse.kitware.com/t/how-to-set-the-initial-state-of-a-patient-in-the-engine/1029)

<div class="topic-metadata">

**Author:** [@maskcclown](https://discourse.kitware.com/u/maskcclown)\
**Replies:** 6\
**Last updated:** [March 11, 2024, 1:24pm UTC](https://discourse.kitware.com/t/how-to-set-the-initial-state-of-a-patient-in-the-engine/1029 "2024-03-11T13:24:47Z")

</div>

How to set the initial state of a patient in the engine, for example, I want to set up a patient with high blood sugar

---

## [Speed up Pulse Engine Actions](https://discourse.kitware.com/t/speed-up-pulse-engine-actions/1234)

<div class="topic-metadata">

**Author:** [@Ehtisham\_Yasin](https://discourse.kitware.com/u/Ehtisham_Yasin)\
**Replies:** 4\
**Last updated:** [March 4, 2024, 12:56pm UTC](https://discourse.kitware.com/t/speed-up-pulse-engine-actions/1234 "2024-03-04T12:56:30Z")

</div>

Right now what I’m planning to do is to increase/decrease the OxygenSaturation from 1 to 0.5 and vice versa. Usually it takes around 2 minutes to reach the desired value. Is there any way to reduce that time to around 30…

---

## [Trouble Starting Pulse Explorer on Intel macOS](https://discourse.kitware.com/t/trouble-starting-pulse-explorer-on-intel-macos/1239)

<div class="topic-metadata">

**Author:** [@LittleSimz](https://discourse.kitware.com/u/LittleSimz)\
**Replies:** 7\
**Last updated:** [March 4, 2024, 12:30pm UTC](https://discourse.kitware.com/t/trouble-starting-pulse-explorer-on-intel-macos/1239 "2024-03-04T12:30:33Z")

</div>

Hello, I’m an anaesthetist in training and deliver simulation in the UK. I am reasonably command-line literate but have no formal coding background. I came across the Pulse Engine recently as we would like to sandbox so…

---

## [Show PLETH graph with Pulse Engine](https://discourse.kitware.com/t/show-pleth-graph-with-pulse-engine/1229)

<div class="topic-metadata">

**Author:** [@Ehtisham\_Yasin](https://discourse.kitware.com/u/Ehtisham_Yasin)\
**Replies:** 3\
**Last updated:** [February 27, 2024, 3:08pm UTC](https://discourse.kitware.com/t/show-pleth-graph-with-pulse-engine/1229 "2024-02-27T15:08:58Z")

</div>

Is there any way to show the Pleth in the PulseDataLineRenderer? Attaching reference image here:

---

## [Initial Patient Setup](https://discourse.kitware.com/t/initial-patient-setup/1228)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [February 27, 2024, 1:51pm UTC](https://discourse.kitware.com/t/initial-patient-setup/1228 "2024-02-27T13:51:24Z")

</div>

So im trying to setup the patient programmatically in the UE5 plugin version of pulse. IM not able to access the parameters provided in the JSON file I need to set the conditions before i start the simulation but need …

---

## [Ninja does not detect source file changes](https://discourse.kitware.com/t/ninja-does-not-detect-source-file-changes/1227)

<div class="topic-metadata">

**Author:** [@di.sheng](https://discourse.kitware.com/u/di.sheng)\
**Replies:** 1\
**Last updated:** [February 27, 2024, 1:23pm UTC](https://discourse.kitware.com/t/ninja-does-not-detect-source-file-changes/1227 "2024-02-27T13:23:16Z")

</div>

Hello, I followed the instructions to do a dockcross build with ninja: # Run this command from a directory that contains both your sourc and your build directories \* docker run --rm dockcross/android-arm64 \> ./armv8a\*…

---

## [No module named 'PyPulse' Error](https://discourse.kitware.com/t/no-module-named-pypulse-error/996)

<div class="topic-metadata">

**Author:** [@JoseMG98](https://discourse.kitware.com/u/JoseMG98)\
**Replies:** 28\
**Last updated:** [February 23, 2024, 2:50pm UTC](https://discourse.kitware.com/t/no-module-named-pypulse-error/996 "2024-02-23T14:50:15Z")

</div>

Followed the appropriate steps in the Wiki to get Pulse working on PyCharm. Attempted to run a HowTo scenario and the following received the following error Traceback (most recent call last): File “C:\\Windows\\System32\\…

---

## [Directly Setting Values in Patient From Code](https://discourse.kitware.com/t/directly-setting-values-in-patient-from-code/1223)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 3\
**Last updated:** [February 22, 2024, 2:14pm UTC](https://discourse.kitware.com/t/directly-setting-values-in-patient-from-code/1223 "2024-02-22T14:14:09Z")

</div>

I want to create a function that can change certain parameters like temperature to begin with in the Patient… IM using the UNreal Plugin and wanted to know if there is a way to directly set a starting temperature that wo…

---

## [Minimum and Maximu Value for OxygenSaturation](https://discourse.kitware.com/t/minimum-and-maximu-value-for-oxygensaturation/1216)

<div class="topic-metadata">

**Author:** [@Ehtisham\_Yasin](https://discourse.kitware.com/u/Ehtisham_Yasin)\
**Replies:** 4\
**Last updated:** [February 19, 2024, 12:30pm UTC](https://discourse.kitware.com/t/minimum-and-maximu-value-for-oxygensaturation/1216 "2024-02-19T12:30:29Z")

</div>

I want to set the PulseDataLineRenderer values for OxygenSaturation, but I’m clueless on what should be the YMin and YMax value of the class for OxygenSaturation. I’ve tweaked around with different values but couldn’t ge…

---

## [Toggling events in the event manager.](https://discourse.kitware.com/t/toggling-events-in-the-event-manager/1214)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [February 18, 2024, 3:16pm UTC](https://discourse.kitware.com/t/toggling-events-in-the-event-manager/1214 "2024-02-18T15:16:43Z")

</div>

I guess this question is specifically for Cardiac Arrest for now but i’d like to know if the same applies to other events. Lets say i turn on the cardiac arrest event on the patient would it make the HR go to 0? If not …

---

## [Reducing RR of the Patient using the Respiratory Mechanics](https://discourse.kitware.com/t/reducing-rr-of-the-patient-using-the-respiratory-mechanics/1213)

<div class="topic-metadata">

**Author:** [@NucleusDev](https://discourse.kitware.com/u/NucleusDev)\
**Replies:** 1\
**Last updated:** [February 18, 2024, 3:04pm UTC](https://discourse.kitware.com/t/reducing-rr-of-the-patient-using-the-respiratory-mechanics/1213 "2024-02-18T15:04:57Z")

</div>

So i need the initial RR of the patient to be lower than normal (I need to simulate a scenario where the patient has taken too much morphine Can i use the respiratory mechanics action to start the patient in this condi…

[Previous page](https://discourse.kitware.com/c/pulse-physiology-engine/5.md?page=1)

[Next page](https://discourse.kitware.com/c/pulse-physiology-engine/5.md?page=3)