Fig. 4: Qualitative comparison of different multimodal methods with omitted clinical data components.
From: LLM-driven multimodal target volume contouring in radiation oncology
a Comparison with numeric category method: Case 1 (left breast, T2N1M0, post-mastectomy) and Case 2 (left breast, T2N1M0, post-breast conservation surgery) show our method (LLMSeg) accurately includes surgically treated areas and regional nodes, while the numeric category method inaccurately segments both breasts, missing clinical context. b Omission experiment for tumor information: For right breast T1aN0M0 cancer, our method segments accurately without omission. Omitting T stage, N stage, or laterality causes incorrect regional node inclusion or opposite breast contours. The competing method is inaccurate regardless of omission. c Omission experiment for surgery information: In left breast T1cN1M0 cancer post-mastectomy, our method without surgery information mimics breast-conserving surgery. The competing method inaccurately contours the opposite breast irrespective of surgery information.