Deep Learning in Healthcare
Machine Learning has been used in Healthcare for some time now. Today, Deep Learning can be used to help Physicians diagnose injury and ailments. There are many different types of technology working together to enable deep learning. This includes imaging sytems, scanners, iot devices, big data storage and much more. Its difficult to understand all the pieces. I thought I would put together a “Toy” example and show you basically how an image recognition system based on TensorFlow – Python would learn an image set and provide a score on a new image.
Please Note: Production Diagnostic systems are very complex and follow compliance rules and scientific rigor. This example is a “Toy” example and should not be used or considered a true Diagnostic Tool. It should be used as an example only. Have fun.
The following are example Use Cases for Machine Learning – Deep Learning in Healthcare:
- Perscription Drug Development – Efficacy
- Prescription Drug – Food Interactions
- Prescription Drug – Overuse | Misuse
- DRG Diagnostic Procedure to Diagnosis
- Provider Network – Specialist Locator
- Raw – Alternate Materials Logistics
- Health Monitoring – Diagnosis | Prevention
- And… Much more
Creating Example Environment
For this example, You will need a basic understanding of Docker, Git and Python. You can start by reviewing this important TensorFlow Tutorial. This will give you an basic understanding of TensorFlow, Inception and how to train and score a new image. The actual Git repository with the Docker file and TensorFlow files are located HERE. Finally, The images I used for this “Toy” example can be found HERE.
At this point; You should have reviewed the tutorial, downloaded and created a Docker environment on your Host Computer. Also, You should have downloaded my example images to a staging area on the same Host with Docker. Make sure to review the README.md in my image Git repository to understand the directory structure.
Building the Example
In my example, I created a tf directory and downloaded the git there:
git clone https://github.com/llSourcell/tensorflow_image_classifier
# inspect new repository
bash-3.2$ cat Dockerfile
MAINTAINER Jerome WAX "firstname.lastname@example.org"
# build the Docker Image
bash-3.2$ Docker build .
# create test directory
# download - copy over image files and unzip - see image test file git for directory structure.
cp diagnose.tar healthdiag.tar ../tf_files/
# create docker container based on image created from Docker build .
docker run -it -v ../tf_files/:/tf_files/ tensorflow/tensorflow:0.9.0-devel
# Note: Docker may complain about your relative path - just place your complete path
# docker will run up the container
root@9e5a509b4637:~# ls /tf_files/
# You should see your healthdiag and diagnose files that you downloaded from my git image repository
# Next, cd into tensorflow and git the tensorflow repos into the newly created docker container
Train Tensor Flow – Inception
Make sure to review the Tensor Flow tutorial. We are going to train inception to understand the images we have in the /tf_files/healthdiag directory and create labels for those files.
This should take some time. Just let your computer grind through this sample data. Note: when your (re) – training a model that contains hundreds, thousands and more images – you will need a Big Data Solution. You need a solution that will stage files in a data lake and a job processing system to run your machine learning programs in parallel. Finally, Aggregate all the results.
If you need help, Please email: Support@Blueskymetric.com or call us and we can help you understand the requirements of this environment.
# ctrl-D to exit Docker and then: - This will download the label_image.py example from tutorial
curl -L https://goo.gl/tx3dqg > $HOME/tf_files/label_image.py
# Finally, let's diagnose some images - 1st is the image on the left from graphic above
python /tf_files/label_image.py /tf_files/diagnose/leg005.jpg
brokenleg (score = 0.91144)
healthyleg (score = 0.08856)
# 2nd is the image on the right
python /tf_files/label_image.py /tf_files/diagnose/leg009.jpg
healthyleg (score = 0.76665)
brokenleg (score = 0.23335)
# I have included the following - give them all a try.
root@9e5a509b4637:~# ls /tf_files/diagnose
leg001.jpg leg002.jpg leg003.png leg004.jpg leg005.jpg leg006.jpg leg009.jpg leg010.jpg
If you’re feeling adventurous; download your own set of images and retrain the model. If you really want to understand what is going on behind the scenes. You will need to deep dive Python, Tensor Flow and Deep Learning. There is allot to these systems but it is understandable. My goal was to show you how simple it can be to build an example system that actually produces exciting results.
Email: email@example.com – Phone: 765.325.8373 ( call / text ).
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