---
title: "2026-08-27 clinical ve2e model forward path audit"
description: "Audited active model input, output, aggregation, ISUP, device, and precision contracts."
image: "https://docs.virdx.dev/img/virdx-social-card.png"
---

> Documentation Index
> Fetch the complete documentation index at: https://docs.virdx.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# 2026-08-27 clinical ve2e model forward path audit

## Work Done

- Inspected all architectures selected by the ve2e Lightning model factory.
- Traced volume, slice, quadrant, segmentation, main-weight, and EMA forward paths.
- Proposed one generic invocation adapter with separate task aggregation.
- Identified the unsupported MRIPTPCA branch and nested-logits defect in `nnUNetClassBase`.
- Made no changes to the ve2e repository.

## Lessons Learned: Pitfalls

- The knowledge base has no `clinical` workstream index or SOP despite clinical work being an allowed category.
- The nominal common output contract is violated by `nnUNetClassBase`; factory membership does not prove runtime conformity.

## Lessons Learned: Improvements

- Document the shared ve2e batch and output schema, including `use_amask`, slice and quadrant axes, deep supervision, and logits normalization.
- Add a clinical workstream index and SOP entry for code-only clinical model audits.

Source: https://docs.virdx.dev/knowledge/inbox/2026-08-27-clinical-ve2e-model-forward-path-audit/index.mdx