Source-linked AI summary

Trust and Medical AI: The challenges we face and the expertise needed to overcome them

Thomas P. Quinn, Manisha Senadeera, Stephan Jacobs, Simon Coghlan, Vuong Le

arXiv:2008.07734v1cs.AIcs.CY

TL;DR

Medical AI promises benefits but introduces conceptual, technical, and humanistic challenges, and failures could damage trust in healthcare. The paper describes these challenges and proposes accredited expert groups to develop, verify, and operate medical AI. It concludes that trained digital-medicine professionals and governance are needed to maintain public trust.

  • Problem

    Medical AI can fail through flawed evaluations, attacks, privacy risks, conceptual errors, data bias, opaque recommendations, and harmful over-reliance, threatening clinical care and trust.

  • Method

    The paper analyzes conceptual, technical, and humanistic challenges and proposes accredited developers, validators, and operational staff specialized in medical AI.

  • Results

    The paper concludes that effective governance and a trained, certified digital-medicine workforce are needed to develop, validate, operate, and safely integrate medical AI.

  • Takeaways & Limitations

    Maintaining public trust in medicine during the AI age requires digital-health professionals who uphold AI safety in clinical environments.

  • Takeaways & Limitations

    Purely data-oriented models are constrained by scarce or incomplete healthcare data, increasing risks of covariate shift, confounder over-fitting, and other biases.

Abstract

from arXiv · show

Artificial intelligence (AI) is increasingly of tremendous interest in the medical field. However, failures of medical AI could have serious consequences for both clinical outcomes and the patient experience. These consequences could erode public trust in AI, which could in turn undermine trust in our healthcare institutions. This article makes two contributions. First, it describes the major conceptual, technical, and humanistic challenges in medical AI. Second, it proposes a solution that hinges on the education and accreditation of new expert groups who specialize in the development, verification, and operation of medical AI technologies. These groups will be required to maintain trust in our healthcare institutions.

1 Trust and Medical AI

Medical AI offers benefits but introduces conceptual, technical, and humanistic challenges whose failures could erode trust in AI and healthcare institutions. The paper argues that addressing these challenges requires coordinated expertise and governance.

  • Risks and trust: Medical AI failures can produce erroneous evaluations, enable adversarial attacks, and threaten patient privacy and confidentiality.Bias may cause erroneous medical evaluations, while deliberate attacks and cybersecurity risks create additional threats.
  • Governance: Governance should span AI systems’ design, implementation, repurposing, and retirement.The paper links strong governance and administrative mechanisms to managing algorithmic risk.
  • Three challenges: The three central challenges are conceptual problem formulation, technical implementation, and humanistic social and ethical implications.The article frames these challenges as requiring specialized expert groups in healthcare.
  • Trust consequences: Unaddressed challenges could concertedly erode trust in medical AI and further undermine trust in healthcare institutions.Figure 1 maps relationships among challenges, clinical care, and their consequences.

2 The Challenges We Face

Medical AI faces conceptual, technical, and humanistic challenges spanning problem formulation, implementation, and the patient-centered social context of care. These challenges include limits in AI reasoning, data and model bias, opacity, and risks of over-reliance.

  • 2.1 Conceptual challenges: Conceptual work must identify a solvable problem given available data and distinguish AI’s learned signal translation from human reasoning, common sense, and clinical intuition.Explicit, falsifiable hypotheses can expose mismatches between training populations and intended clinical use.
  • 2.1 Conceptual challenges: Model verification requires understanding over-fitting and data leakage, because analysts may otherwise conclude that a model works when it does not.The paper identifies this as a consequence of insufficient familiarity with abstract verification concepts.
  • 2.1 Conceptual challenges: Even when standards exist, models can reproduce errors or biases in training data, while some clinical problems lack an agreed expert standard.Disagreement about pathophysiology or nosology can make reliable matching to human expertise impossible.
  • 2.2 Technical challenges: Technical performance depends heavily on tuning many hyper-parameters, yet no universal rule-of-thumb governs their selection.The example concerns applying LSTM models to EEG signals, where sampling rate, segment size, and hidden layers affect performance.
  • 2.2 Technical challenges: AI combines domain knowledge with training examples, but healthcare data may be scarce or incomplete, intensifying covariate shift, confounder over-fitting, and other biases.These factors reduce the trustability of purely data-oriented models.
  • 2.3 Humanistic challenges: Humanistic challenges arise because patients have individualized needs, values, vulnerabilities, and autonomy interests that patient-centered care must respect.The healthcare relationship carries distinctive professional duties, including privacy and confidentiality.
  • 2.3 Humanistic challenges: Black-box models can weaken trust and autonomy, obscure systematic bias against under-represented groups, and embed value judgments in treatment rankings.The paper notes that theoretically fair models can still contain biases.
  • 2.3 Humanistic challenges: Over-reliance and automation bias can contribute to flawed decisions, overdiagnosis, overtreatment, and defensive medicine, while AI replacement may reduce empathetic care.These concerns motivate the need for developers, validators, and operational staff.

3 The Experts We Need

The paper proposes three expert groups—developers, validators, and operational staff—to address medical AI’s conceptual, technical, and humanistic challenges. Their roles span interdisciplinary design, rigorous validation, governance, monitoring, and responsible clinical use.

  • Developers: Developers should combine AI expertise with healthcare, patient advocacy, and medical ethics to design systems sensitive to individual patient values.Interdisciplinary collaboration helps align technically feasible prediction problems with medically important applications.
  • Developers: Long-term interdisciplinary degrees in digital medicine should combine computer science, health science, accreditation, and medical ethics.The paper presents specialized training as necessary because both fields use precise vocabularies not readily understood by outsiders.
  • Validators: Validators need technical understanding to assess performance in day-to-day work while models are continually monitored, audited, and updated as medical knowledge advances.Validation is presented as an ongoing interdisciplinary activity rather than a one-time assessment.
  • Validators: Short-term safeguards include multidisciplinary peer review and randomized clinical trials that evaluate clinical endpoints rather than predictive accuracy alone.These measures apply methodological rigor and evidence-based medicine standards to AI systems.
  • Validators: Long-term governance requires institutions empowered to audit responsible development and deployment, potentially including formal validation and regulator involvement.The paper compares AI safety scrutiny with drug safety and mentions “Turing stamps” and the FDA.
  • Operational staff: Operational staff connect developers, validators, AI systems, and patients, helping reduce both the risks of ignoring recommendations and over-relying on them.Recommendations that are obscure or unhelpful may be explicitly ignored, with potentially disastrous consequences.
  • Operational staff: Operational training should address AI safety, privacy, data security, and ethics through continuing education and professional medical curricula.The paper also calls for specialized digital-medicine roles such as digital doctors and digital nurses.

4 Final Remarks

The paper concludes that medical AI requires effective strategies, governance, and a new workforce trained and certified to develop, validate, and operate these technologies. These measures are presented as necessary to maintain public trust in medicine during the AI age.

  • Final remarks: Maintaining public trust requires new programs to train and certify digital-medicine experts who uphold AI safety in clinical environments.The proposed workforce includes professionals who develop, validate, and operate medical AI technologies.
  • Final remarks: Medical AI is powerful but imperfect, so its clinical use requires effective strategies and governance.
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