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AI in Medical Translation: Capabilities and Limitations

Eyal Heldenberg

No Barrier CEO

February 24, 2025

6

Minute Read

Abstract

This article examines the role of artificial intelligence in medical translation and interpretation, analyzing its current capabilities, limitations, and potential impact on healthcare delivery. The study focuses on how AI technologies are transforming language barriers in healthcare settings while acknowledging important considerations for implementation.

Executive Summary

The integration of AI in medical translation represents a significant advancement in healthcare communication, offering immediate, cost-effective solutions while maintaining high accuracy standards. This analysis explores the advantages and challenges of implementing AI translation systems in healthcare settings, providing insights for healthcare institutions considering adoption of these technologies.

For example - if remote interpreters' cost could be $1-$2 per minute, AI vendors could roughly be 70% less in cost.

Introduction

As healthcare becomes increasingly globalized, effective communication between healthcare providers and patients of diverse linguistic backgrounds is crucial. AI-powered translation and interpretation services are emerging as powerful tools to address language barriers in medical settings, promising to improve access to healthcare while maintaining quality of communication.

The U.S. healthcare system serves one of the most culturally diverse populations in the world. According to KFF, over 42% of patients now identify as racial or ethnic minorities

Capabilities of AI

The implementation of AI in medical translation has demonstrated several significant capabilities that are transforming healthcare communication. AI systems excel at streamlining workflows by providing immediate, 24/7 translation services for both documents and real-time interpretation between patients and providers. This immediate availability significantly reduces waiting times and improves healthcare delivery efficiency.

From a financial perspective, AI translation services offer substantial cost savings, making professional translation services accessible to a broader range of healthcare institutions. This democratization of language services enables smaller facilities to provide quality care to diverse patient populations.

Let’s take Akron children’s hospital for example. They utilize 60,000 minutes of human interpretation every month, with the need of 250 different languages, in 2022. Assuming each minute costs $1 means that their annual spend is $720K. If we assume that AI systems usually cut around 60% of the cost - the savings could get to $432K every year.

One of AI's most notable strengths lies in its consistency. Unlike human interpreters, who may vary in their professional expertise and approach, AI models maintain uniform quality across translations. This consistency is particularly valuable in medical settings where accuracy and standardization are crucial.

AI translation systems also create a more intimate healthcare environment by enabling direct communication between patients and providers without the physical presence of a third-party interpreter. This privacy-focused approach can enhance patient comfort during sensitive medical discussions. 

In one study (from December 2024 “Artificial intelligence in clinical settings: a systematic review of its role in language translation and interpretation) - patients were “generally positive” with AI translation, “found that communicating through machine translation was easy” and will be “willing to use the application again (84-96.6%).
Also, some felt translation into their native language provided comfort and respect

In terms of accuracy, particularly for widely-used languages, top AI language models have demonstrated high levels of precision in medical translation across various specialties. This reliability is essential for maintaining quality care standards.

In one study, by No Barrier, AI interpreting outperformed remote phone interpreters by 25% in accuracy. Research, from 2024, tested 91 utterances for both directions of English and Spanish, and the overall accuracy was evaluated blindly by two professional medical interpreters.


Limitations of AI

Despite its capabilities, AI in medical translation faces several important limitations. A significant challenge exists in handling less common languages, where AI accuracy may not match that of major languages due to limited training data and resources. This "long tail" language challenge affects healthcare institutions serving diverse linguistic communities.

For example English to Hadza is a rare pair, where accuracy of translation is very low, making it unusable. Another example of English to Taa (southern african language spoken in Botswana). Those languages could be served solely by human translators.

Regulatory compliance, particularly regarding HIPAA and security standards, presents another crucial limitation. Healthcare providers must ensure that any AI translation service adheres to the strictest security standards and undergoes regular audits to maintain patient privacy and data protection.

Perhaps most significantly, AI systems currently lack the culture & emotional intelligence and empathy that human interpreters provide. Unlike human interpreters who can adjust their tone, pace, and emotional delivery based on the situation, AI systems have limited ability to convey empathy or adapt to emotionally sensitive circumstances - which human interpreter do (see “Agents of Empathy” here) .

Risks in AI Translation

The implementation of AI translation in healthcare settings requires careful consideration of system integration, data privacy, and backup procedures. Healthcare providers should develop comprehensive protocols to ensure reliable service delivery.

Ways to mitigate:

  1. Check vendor compliance and security measurements - and that it adheres to HIPAA, and works on the highest security standards - for example, encryption, firewalls and access control.
  2. PHI processing and persistent - make sure that data is secured and safe, and if possible no-low retention of sensitive data at all.
  3. Accuracy - make sure the vendor can present to the provider/user if there might be errors in the translation workflow - either automatic notification or manual notification.
  4. Data repurpose - make sure PHI is not repurposed for training and other not-related purposes.

Advantages of AI Interpretation

AI interpretation offers significant advantages in healthcare settings. The technology provides immediate availability across all time zones and reduces waiting times for translation services. This accessibility is particularly valuable for rural and remote healthcare facilities that may have limited access to human interpreters.

Future Trends in AI

The field of AI medical translation continues to evolve, with ongoing improvements in natural language processing, multi language large language models,  and efforts to enhance emotional intelligence capabilities. Integration with telemedicine platforms and expanding multilingual capabilities represent key areas of development.

Recommendations

Healthcare institutions considering AI translation implementation should adopt a phased approach that combines AI and human interpreters. This hybrid model allows organizations to leverage AI's efficiency while maintaining access to human interpreters for situations requiring emotional sensitivity or handling rare languages. 

Concrete steps to take:

  1. Assess the top 10 languages in your institution. This information might be in your EHR, or in the administrator dashboard of your language service providers.
  2. Find established AI medical interpreter vendors - ensure that at least 80% of your languages can be covered by the AI vendor, to make sure this new workflow could be part of providers’ daily workflow and not something they will forget. Make sure the vendor is specialized in medical terminology. Also - make sure the application is simple to use and be adopted by providers.
  3. Assign a project manager to deploy AI medical interpretation across organizations.
  4. Start by implementing AI in one site and one department, with appropriate onboarding, training - and collect feedback for learning. The learning curve should be fast and the provider should know how to operate the application after 3-4 encounters.
  5. Key KPIs to measure - providers’ ease of use and patients’ satisfaction (aim for 90% and up), cost per encounter, providers’ adoption rate of AI.
  6. Expand according to the progress to other departments and sites.

Conclusion

AI in medical translation represents a transformative technology that is revolutionizing healthcare communication. With its ability to provide immediate, consistent, and cost-effective translation services, AI is making quality healthcare more accessible to diverse patient populations. While certain challenges exist, particularly in rare languages and emotional communication, the rapid advancement of AI technology continues to address these limitations. Healthcare institutions that embrace AI translation solutions position themselves at the forefront of modern healthcare delivery, offering their patients enhanced access to care while maintaining high standards of communication. The future of medical translation lies in the thoughtful integration of AI technologies, promising even greater improvements in healthcare accessibility and patient outcomes.

No Barrier - AI Medical Interpreter

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