Amazon Web Services is extending its Comprehend natural language processing service to medical records. At AWS' re: Invent conference, the company outlined Amazon Comprehend Medical, an extension of Comprehend for medical customers. The importance of the service is that it is another toward applying artificial intelligence and machine learning to healthcare. The ability to automate medical record reading and x-ray and MRI analysis could save time for patients as well as physicians. Comprehend can model topics, detect language, conduct sentiment analysis and extract phrases.