Lesion-Gated Hybrid Synthesis for Virtual Contrast-Enhanced Breast MRI: A MAMA-SYNTH Challenge Solution

arXiv:2609.22397 · eess.IV, cs.CV · Submitted 2026-09-18 · Read on arXiv

eess.IV, cs.CV

Submitted: 2026-09-18

Updated: 2026-09-18

Comments: 8 pages, 2 figures, 3 tables. MAMA-SYNTH Challenge solution report; the submitted method ranked 6th in the official challenge leaderboard

Code: https://github.com/mama-research/mama-synth

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Calibration — 17× in this paper · explained in 7 episodes
• Fidelity — 12× in this paper · explained in 2 episodes
• Ablation — 9× in this paper · explained in 1 episode
• Aggregation — 5× in this paper · explained in 1 episode
• CONTRAST ERROR — 3× in this paper
• Frechet Radiomic Distance — 3× in this paper
• nnU-Net — 3× in this paper · explained in 2 episodes
• AND TUMOUR-UNDER — 2× in this paper
• Core — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Adversarial Training — 1× in this paper · explained in 1 episode
• Benchmark — 1× in this paper · explained in 2 episodes
• Failure Modes — 1× in this paper · explained in 3 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes

Sources

• Very Deep Convolutional Networks for Large-Scale Image Recognition

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