Organizations: Medical AI Lab, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China · Hebei Provincial Medical Artificial Intelligence Research Institute, Shijiazhuang, 050000, Hebei, China · Hebei Provincial Engineering Research Center for AI-Based Cancer Treatment Decision-Making, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China · State Key Laboratory of Neurology and Oncology Drug Development, Nanjing, China · School of Computing, University of Georgia, 415 Boyd Research and Education Center, Athens, 30602, GA, USA · Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, China · College of Mathematics and Physics, China Three Gorges University, Yichang, Hubei, China · Department of Radiation Oncology, Mayo Clinic, 5881 E. Mayo Blvd., Phoenix, 85054, AZ, USA · Gastrointestinal Disease Diagnosis and Treatment Center, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China · Department of General Surgery, The First Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
In recent years, the advances of large language models and autonomous agents have revolutionized the healthcare field, facilitating diagnosis and improving treatment results. However, most existing AI systems rely on pre-trained knowledge and predefined pipelines, which struggle to learn dynamically from the interactive chat session history that contains patient outcomes and past failures. To address this limitation, we propose VIBEMed, a multi-agent framework with a built-in self-evolution mechanism and architecture-level safety sandbox for robust clinical decision support. The system integrates three specialized agents, including a Clinical Diagnostic Agent (CDA) for hypothesis generation, a Therapeutic Execution Agent (TEA) for treatment planning, and a Clinical Evolution Manager Agent (CEMA) that distills longitudinal clinical feedback into reusable knowledge, transforming multimodal patient information into personalized medical decisions. Through self-evolution mechanism, the framework enables iterative updates across memory, model behavior, and decision strategies, allowing the system to improve over time. Experimental results show that VIBEMed demonstrates superior performance through its evolving mechanism in complex clinical cases, particularly in tasks that require integrated decision-making and longitudinal planning. The framework also supports reliable end-to-end decisions in challenging scenarios such as oncology treatment planning, highlighting its feasibility in real-world clinical contexts. Overall, VIBEMed provides a practical path beyond static AI systems toward adaptive, experience-driven clinical decision support, demonstrating the value of combining multi-agent collaboration with continuous evolution for advancing precision medicine.
Figures & tables
Figure 1: System architecture of the VIBEMed framework, consisting of the multi-agent collaborative framework, three-level self-evolution mechanism and an architecture-level safety sandbox.
Figure 2: Overview of the multi-agent collaborative framework. A: Clinical workflow showing three agents (CDA, TEA, CEMA) powered by a shared backbone LLM with role-specific system prompts. B: Example for each agent showing role definitions with corresponding input & output.
Figure 3: Details of the three-level self-evolution mechanism. A: Conceptual overview of the hierarchical structure encompassing memory, model, and code evolutions. B: Memory-level evolution showing real-time updates through a multi-dimensional storage without parameter change. C: Model-level evolution featuring periodic adaptation using Supervised Fine-Tuning (SFT) and Direct Preference Optimization (DPO), governed by the “LLM-as-a-judge” safety evaluation loop. D: Code-level evolution workflow demonstrating the on-demand functional extension process.
Experiments
Avg
SD
Min
Max
Pipeline A: Direct LLM
35.13
3.92
24
40
Pipeline B: CDA only
36.97
1.61
32
40
Pipeline C: TEA only
31.53
4.75
24
39
Pipeline D: CDA + TEA
39.20
1.42
35
40
Table 1: Evaluation scores of the four pipelines.
Base Model
Evolved Model
CMB-Clin-extended
22.5
23.4
MedTreat
21.6
25.5
MedOutcome
18.0
18.7
MedAnalysis
38.8
35.8
MedDiag
26.7
24.7
MedDiffer
9.3
13.0
Table 2: Performance comparison between the base model and the evolved model on MedBench clinical reasoning tasks.
Figure 4: Functional interface of the VIBEMed system. The left panel displays the input of multimodal patient data. The right panel presents the agent-collaborative decision outputs from CDA and TEA.
Clinical decision-making is inherently experience-driven: physicians progressively refine their reasoning by synthesizing patient history, multimodal observations, and prior diagnostic experiences across interactions. In contrast, current multimodal large language model (MLLM)-based medical AI agents largely operate as stateless inference systems, generating decisions independently for each interaction without retaining or internalizing experiential knowledge. This discrepancy limits their ability to progressively improve reasoning reliability through usage and adapt to longitudinal patient contexts in real-world clinical workflows. In this study, we propose Medical Structured Multimodal Memory (MSM-Mem), an agentic memory framework that enables medical AI agents to evolve through accumulated clinical experiences. MSM-Mem organizes heterogeneous clinical experiences into semantic, episodic, and visual memory and incrementally updates them during inference, allowing the agent to retrieve prior experiences to inform current reasoning and progressively refine decision-making over time. Evaluations on MoE-LLaVA backbones demonstrate consistent performance improve- ments with further gains observed through continued usage. In general, MSM-Mem offers a viable pathway toward medical AI agents capable of evolving their reasoning competence in a manner analogous to the way clinicians learn from practice over time.
Md Asaduzzaman Jabin, Khoa Le, Lin Zhao +1
University of Georgia, Athens, GA, USA · New Jersey Institute of Technology, Newark, NJ, USA
Large language model (LLM) driven multi-agent systems have shown promise in complex clinical reasoning, yet existing approaches rely on static strategies and lack persistent clinical memory, preventing self-evolving from prior diagnostic successes and failures. We present EMR, a self-evolving medical multi-agent system via Experience Mining and Reuse. EMR introduces a hierarchical clinical experience library that organizes accumulated knowledge into three levels: clinical principles, diagnostic patterns, and representative cases. During inference, EMR emulates multidisciplinary consultation: a planner agent coordinates domain-specific department agents for specialized reasoning, while a summary agent synthesizes their analyses into a final decision. Critically, EMR automatically extracts correct diagnostic insights and failure-related warnings from multi-agent reasoning trajectories, incrementally updating the experience library to guide future cases. Experiments on medical reasoning benchmarks demonstrate that EMR consistently outperforms state-of-the-art medical multi-agent baselines. Further analysis reveals that the hierarchical experience enables cross-specialty generalization and transfer across diverse LLM backbones, offering a scalable and in
Dongsheng Shi, Yue Li, Xin Yi +1
East China Normal University · City University of Hong Kong
The growing ability of large language models and vision language models to jointly interpret and reason over images and text is reshaping medical agents, moving them from task specific predictors toward autonomous systems that perceive, reason, plan, remember, and act in clinical environments. This work departs from the capability first perspective of existing literature and instead begins from clinical deployment, asking what tasks, contamination resistant benchmarks, and interactive training environments are required before medical agents can be trusted in practice. Medical agents are formalized as sequential decision making systems under partial observability, together with a three level autonomy taxonomy spanning assisted, cooperative, and fully autonomous operation. The field is organized along a unified scaling spine consisting of framework scaling, capability scaling, and environment scaling. Within this framework, clinical environment scaling, the integration of tools, data, and clinical gyms, is identified as the most actionable yet underexplored direction for agents operating in PACS, EHR, and FHIR ecosystems. Clinical self evolution, where agents improve through interaction with their environments rather than parameter scaling alone, is further positioned as a key research frontier, drawing insights from self improving agents, agent gyms, and test time compute scaling. Applications across radiology, pathology, ophthalmology, and hospital workflows are examined together with deployment challenges including hallucination, cascading failures, and fairness. By consolidating more than 300 references, with particular emphasis on advances from 2025 to 2026, this work provides a roadmap toward trustworthy, self improving medical imaging systems for real clinical practice.
Chunzheng Zhu, Lei Tian, Bohan Tan +15
1Hunan University · 2ByteDance · 3Duke University +6