Finding Arthritis, Breast Cancer Diagnosis with Ultrasound, and Predicting Psychosis Among Cannabis Users

Jon Kanevsky, MD, FRCSC
Health.AI
Published in
3 min readFeb 27, 2017

Artificial Intelligence in Health Care Weekly Roundup #11

“I believe that at the end of the century the use of words and general educated opinion will have altered so much that one will be able to speak of machines thinking without expecting to be contradicted.”
Alan Turing, Computing machinery and intelligence

1) Predicting Arthritis from MRI

Arthritis is inflammation of the joints. With time, inflammation causes the cartilage of the joint to break down. Eventually, the cartilage wears away and bone is left rubbing on bone….ouch. Predicting the development of arthritis is a valuable tool that can be accomplished using MRI. These researchers evaluated the ability of a machine learning algorithm to classify in vivo magnetic resonance images of human articular cartilage for development of osteoarthritis. Their approach allowed for the successful detection of images that progress to arthritis with 75% accuracy.

Shows a representative example of a cartilage map calculated for misalignment

Read more: Predicting early symptomatic osteoarthritis in the human knee using machine learning classification of magnetic resonance images from the Osteoarthritis Initiative

2) Breast Cancer Diagnosis with Ultrasound

Ultrasound is one of the easiest, least invasive ways to understand what is happening inside the body. Unfortunately, the images produced with ultrasound are highly dependent on the person holding the ultrasound probe. Breast tumors are usually picked up on ultrasound but it can be challenging to know if the tumor is a dangerous cancer or a benign growth. Researchers in this study developed a machine learning based classifier to sort benign vs. malignant breast tumors using ultrasound with accuracy as high as 96.6%.

Read More: Risk Stratification of 2D Ultrasound-based Breast Lesions using Hybrid Feature Selection in Machine Learning Paradigm

3) Predicting Psychosis Among Cannabis Users

With recent de-regulation of marijuana there has been significant press on the cannabis industry. Harms and benefits of marijuana have been widely debated and researched. However, little evidence is available on how to identify those individuals most at risk to experiencing the harmful effects of marijuana. Psychosis, is a rare but well known side-effect of weed, especially among the younger, susceptible population. These researchers have harnessed the power of machine learning to help identify people most at risk to developing a psychotic episode from puffing a joint.

Read More: A Prediction Modelling and Pattern Detection Approach for the First-Episode Psychosis Associated to Cannabis Use

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Jon Kanevsky, MD, FRCSC
Health.AI

😷Board Certified Plastic and Reconstructive Surgeon 🌱 Vegan ❤️🧠Writing from the Heart and Mind