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Artificial intelligence in healthcare

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The use of AI in healthcare has also raised ethical, technical, and regulatory concerns, including related to issues such as data privacy, automation of jobs, and amplifying already existing algorithmic bias. Studies have also examined concerns among patients, health professionals, and the public about trust and empathy in care involving AI.

Applications in healthcare systems

Disease diagnosis

Accurate and early diagnosis of diseases is still a challenge in healthcare. Recognizing medical conditions and their symptoms is a complex problem. AI can assist clinicians with data processing capabilities to save time and improve accuracy. Through the use of machine learning, artificial intelligence can substantially aid doctors in patient diagnosis through the analysis of mass electronic health records (EHRs). AI can help early prediction, for example, of Alzheimer's disease and dementias, by looking through large numbers of similar cases and possible treatments.

In 2023 a study reported higher satisfaction rates with ChatGPT-generated responses compared with those from physicians for medical questions posted on Reddit's r/AskDocs. Evaluators preferred ChatGPT's responses to physician responses in 78.6% of 585 evaluations, noting better quality and empathy. The authors noted that these were isolated questions taken from an online forum, not in the context of an established patient-physician relationship. Moreover, responses were not graded on the accuracy of medical information, and some have argued that the experiment was not properly blinded, with the evaluators being coauthors of the study.

Large healthcare-related data warehouses of sometimes hundreds of millions of patients have been used as training data for AI models.

A 2025 meta-analysis in PLOS One found that the use of AI algorithms for detecting tooth decay was clinically justified.

Electronic health records

AI algorithms have been created to evaluate individual patients' electronic health records, and to predict risks for diseases based on records and family histories. One general algorithm is a rule-based system that makes decisions similarly to how humans use flow charts. This system takes in large amounts of data and creates a set of rules that connect specific observations to concluded diagnoses. Thus, the algorithm can take in a new patient's data and try to predict the likelihood that they will have a certain condition or disease. Since the algorithms can evaluate a patient's information based on collective data, they can find any outstanding issues to bring to a physician's attention and save time. One study conducted by the Centerstone research institute found that predictive modeling of EHR data has achieved 70–72% accuracy in predicting individualized treatment response. These methods are helpful due to the fact that the amount of online health records doubles every five years. Physicians do not have the bandwidth to process all this data manually, and AI can leverage this data to assist physicians in treating their patients. AI can analyze electronic health records to identify patterns and provide evidence-based insights to support physicians in clinical decision-making.

Clinical documentation

The use of generative artificial intelligence tools (a subset of AI) is growing as a support for clinical documentation, primarily for transcribing consultations and drafting medical notes. Early studies have shown that such tools, may assist clinicians with documentation tasks, reducing administrative burdens, which are known drivers of burnout. These tools may also improve accessibility for patients synthesizing complex data, and writing responses in a desired conversational style or literacy level ultimately improving the overall efficiency of healthcare services.

AlphaFold and drug discovery

AlphaFold has the ability to predict protein structures based on the constituent amino acid sequence, expected to have benefits in the life sciences—accelerating drug discovery and enabling better understanding of diseases. Nobel laureate Venki Ramakrishnan called the result "a stunning advance on the protein folding problem", adding that "It has occurred decades before many people in the field would have predicted. It will be exciting to see the many ways in which it will fundamentally change biological research." In 2023, Demis Hassabis and John Jumper won the Breakthrough Prize in Life Sciences as well as the Albert Lasker Award for Basic Medical Research for their management of the AlphaFold project. Hassabis and Jumper proceeded to win the Nobel Prize in Chemistry in 2024 for their work on "protein structure prediction" with David Baker of the University of Washington.

Drug interactions

Improvements in natural language processing led to the development of algorithms to identify drug-drug interactions in medical literature. Drug-drug interactions pose a threat to those taking multiple medications simultaneously, and the danger increases with the number of medications being taken. To address the difficulty of tracking all known or suspected drug-drug interactions, machine learning algorithms have been created to extract information on interacting drugs and their possible effects from medical literature. Efforts were consolidated in 2013 in the DDIExtraction Challenge, in which a team of researchers at Carlos III University assembled a corpus of literature on drug-drug interactions to form a standardized test for such algorithms. Competitors were tested on their ability to accurately determine, from the text, which drugs were shown to interact and what the characteristics of their interactions were. Researchers continue to use this corpus to standardize the measurement of the effectiveness of their algorithms.

Other algorithms identify drug-drug interactions from patterns in user-generated content, especially electronic health records and/or adverse event reports. Organizations such as the FDA Adverse Event Reporting System (FAERS) and the World Health Organization's VigiBase allow doctors to submit reports of possible negative reactions to medications. Deep learning algorithms have been developed to parse these reports and detect patterns that imply drug-drug interactions.

Telehealth

Telehealth is the treatment of patients remotely. Pivovarov and Elhada (2015) propose using wearable devices to allow for constant monitoring of a patient and the ability to notice changes via AI that may be less distinguishable by humans.

A 2025 systematic review and meta-analysis of 15 studies comparing AI chatbots with human healthcare professionals in text-based consultations found that in a large majority of studies participants rated chatbot responses as more empathic than those from clinicians.

Workload management

AI has the potential to streamline care coordination and reduce the workload. AI algorithms can automate administrative tasks, prioritize patient needs, and facilitate seamless communication in a healthcare team.

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