BREAST IMAGING RESEARCH

Breast imaging.

A focused workspace for AI-assisted image research. Analyse tissue patches and mammograms, then explore the model’s predictions, attention maps, and explanations.

Research & education. Professional review required.

Reference viewerH&E tissue
Reference breast tumour micrograph showing H&E-stained cellsREFERENCE IMAGE · NOT A MODEL OUTPUT
01Source image
02Model attention
03Explanation
Reference: M. Urezkova · CC BY 4.0 ↗. Not analysed by MedAI.
THE WORKSPACE

Two modalities. One place to explore.

Choose an image type to begin.

FROM IMAGE TO UNDERSTANDING

A clear path through
the model’s output.

Keep the source image in view. Inspect the evidence, then ask questions in context.

  1. 01

    Upload a research image

    Choose a modality and add a de-identified image. Select who the explanation is written for.

  2. 02

    Review the output

    Compare the source image with the model’s prediction, confidence score, and Grad-CAM attention map.

  3. 03

    Ask a follow-up question

    Use the conversation attached to the result to explore the explanation and its limitations.

TRANSPARENT BY DESIGN

The models.
The data. The limits.

See the architecture, datasets, and project-reported evaluation results behind each module.

Histopathology

Test accuracy

88.0%
Histopathology

Test sensitivity

87.5%
Mammography · patient-level validation

Area under the ROC curve

0.8443

Project-reported results, not independently verified. Dataset performance does not establish clinical effectiveness.

YOUR NEXT STEP

Bring an image. Explore the output.

Research tools for tissue patches and mammograms.

MedAI / Workspace

Image analysis

Upload an image to inspect its model output.

Explanation for
Select an image to begin

Use de-identified research images. Images and any optional case context are sent to the configured backend. MedAI is not a diagnostic medical device.

Image workspaceH&E TISSUE
Choose an image or drop it here
PNG · JPG · TIFF · BMP
No analysis yet
Upload a tissue patch, then select Analyse scan. The prediction and explanation will appear here.
Sample images / If installed
tumor patchTumor patch
normal patchNormal patch
MedAI / Conversation

Research assistant

Ask about the models, image analysis, or a result you have already generated.

MedAI / Research assistant
Models · Attention maps · Explanations
Quick topics
Image-specific questions

For questions about a particular image, use the conversation attached to its analysis result in the workspace.

MedAI / Model card

Models, data, and limitations.

A record of the architecture, training choices, and reported performance behind MedAI. These details are supplied by the project; they have not been independently verified in this frontend review.

Intended use: research and education. This prototype is not a diagnostic medical device. Dataset metrics do not establish performance in a clinical setting. Model predictions, attention maps, BI-RADS suggestions, and generated text require qualified professional review.
01 / HISTOPATHOLOGY

DenseNet-121

H&E tissue-patch classification. The project reports training on a deduplicated subset of PatchCamelyon.

MeasureEvaluation setReported value
AccuracyHeld-out test88.0%
SensitivityHeld-out test87.5%
SensitivityValidation90.3%
DenseNet-121 backbone
~7.2M-parameter CNN pretrained on ImageNet. Dense-block feature reuse across layers. Custom head: BN→Dropout(0.4)→Linear(1024→256)→ReLU→BN→Dropout(0.3)→Linear(256→2).
PatchCamelyon (PCam)
H&E patches from Camelyon16 slides. After MD5 deduplication: 220,025 unique samples (benign 130,908 / malignant 89,117 → pos_weight 1.469). Patient-disjoint train / val / test splits.
Training methodology
OneCycleLR (max_lr 3e-3, pct_start 0.3) · Mixup (α 0.4) · StainJitter (HED, strength 0.05) · label smoothing 0.1 · checkpoint by validation sensitivity.
Histopathology results
Held-out test: 88.0% accuracy, 87.5% sensitivity (val sensitivity 90.3%, best epoch 13/20). Improvement vs baseline +6.8pp (80.7% → 87.5%).
02 / MAMMOGRAPHY

EfficientNet-B4 ensemble

Three models trained on RSNA mammography data, with probabilities averaged at inference.

MeasureEvaluationReported value
AUCPatient-level validation0.8443
SensitivityThreshold 0.5070.1%
SpecificityThreshold 0.5082.4%
EfficientNet-B4 ensemble
Three EfficientNet-B4 models (seeds 42 / 123 / 999), probabilities averaged at inference. Member AUCs 0.7989 / 0.8254 / 0.8083.
RSNA dataset & preprocessing
RSNA Screening Mammography (2022). DICOM decoding with VOI-LUT windowing, resized for full-field input. Held-out patient-level validation split.
Mammography results
Ensemble patient-level AUC 0.8443 · sensitivity 70.1% · specificity 82.4% (threshold 0.50). Suggested BI-RADS 2–5 derived from malignancy probability.
Negative ablations
Breast-ROI cropping reduced AUC (~0.14 drop, aspect-ratio distortion); adding external CBIS-DDSM data hurt (film-vs-digital domain shift). The un-cropped, RSNA-only ensemble is final.
03 / EXPLANATIONS

Attention maps & text

Tools for inspecting model behaviour. Neither an attention map nor a generated explanation proves a finding.

Grad-CAM explainability
Gradients backpropagated w.r.t. the predicted class at the final conv block → global-average-pooled channel weights → weighted feature sum → ReLU → bilinear upsample to input resolution.
LLM explanation layer
FLAN-T5-large / BioMedLM / Llama 3.2 with a deterministic template engine. Three audience modes (clinician, researcher, patient) with genuinely different content.
What these outputs cannot establish
A model’s confidence score is not a patient’s probability of having cancer. Grad-CAM highlights model attention; it is not a validated tumour boundary. Generated explanations may contain errors. Suggested BI-RADS categories require radiologist review. Performance may change across hospitals, scanners, staining protocols, and patient populations.
Colour system, image credits & interface references
Colour system. The RelixOrb logo inspires electric blue (#125BD3), cyan (#28D8FD), and violet (#473ADA). Deep navy (#0B1329) anchors typography, while blue-to-violet gradients highlight primary actions and cyan adds small accents. White and soft cool surfaces, consistent spacing, sans-serif typography, and clearly labelled states support the research workflow. Medical images and heatmaps retain their original colours.

Design review: 8 October 2026. This is a frontend redesign. Original API configuration, requests, payloads, response handling, and model logic are retained. A complete accessibility audit and testing with intended users remain necessary.

Reference image / Breast tissue · H&E
Full reference micrograph of breast tumour tissue

M. Urezkova · Original image · CC BY 4.0 · Converted to WebP. Reference only; not analysed by MedAI.