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Coming Soon: Hanging Protocols – Advanced Viewports & Smarter Series Matching

· 4 min read

Overview

Hanging Protocols in the OmegaAI Image Viewer now go well beyond flat 2D stacks. This release adds MPR, rotating PET MIP, and PET-CT fusion viewports; smarter, metadata-driven series matching; and four new default protocols built around them.

What's New

1. MPR, Rotating PET MIP & PET-CT Fusion Viewports

What changed:

Hanging Protocol viewports are no longer limited to a flat 2D stack. Seven new view codes let a viewport open directly into an advanced view as soon as a study loads, with no manual setup:

  • CT: MPR Axial / Coronal / Sagittal — builds a multiplanar reconstruction from the thinnest axial CT series in the chosen plane. Even an axial-only CT can open as coronal or sagittal.
  • PT: PET 3D MIP — a rotating whole-body PET projection, built automatically from the attenuation-corrected PET series.
  • PET-CT: Fusion Axial / Sagittal / Coronal — PET overlaid on CT in the chosen plane, using the PET display preset's colormap.

Slab thickness and projection (Maximum, Average, or Minimum Intensity) can be saved for each MPR and fusion viewport, so the viewport opens exactly as configured. If a study can't support one of these views, the viewport shows the best available 2D series instead of going blank — for fusion, it shows CT alone with a "Fusion unavailable" indicator.

Benefit:

Radiologists land on the right multiplanar or fused view automatically — no manual reconstruction or series hunting required.


2. Display Presets for Every Modality

What changed:

Each viewport's rules now include a single Display Preset picker, listing the presets available for that viewport's modality — CT, MR, US, PT, NM, and more, not just PET as before. Selecting a preset applies its window level and, where configured, its colormap and auto-windowing behavior together.

Benefit:

Consistent, clinically correct windowing and colormaps on open, authored once and reused across every protocol.


3. Smarter, Metadata-Driven Series Matching

What changed:

Viewport matching rules can now weigh study details beyond modality and body part — slice thickness, study description, and dozens of other fields — with numeric and multi-value comparisons. Each rule can be a strict requirement or just a preference, so OmegaAI still hangs the best available series rather than leaving a viewport empty.

Benefit:

Protocols can express real clinical preferences — like favoring a primary-read series over a thin reconstruction — without ever risking a blank viewport.


4. Four New Default Hanging Protocols for PET, PET-CT, and MPR

What changed:

OmegaAI's Default Hanging Protocol catalog adds four new protocols: PET Default, PET-CT Default, PET-CT Quick Read, and MPR Default, each built around the new viewport types above. PET and PET-CT cells apply a clinically standard SUV-scaled colormap, and fall back safely with a clear indicator when a study's data can't support SUV scaling.

Benefit:

PET, PET-CT, and MPR-heavy workflows get a clinically reviewed, ready-to-use starting protocol out of the box.


Important Notes

  • Backward compatible: Existing protocols behave exactly as before, with no impact on studies that don't use the new viewport types.
  • Series matching: A condition on a metadata field that doesn't apply to the bound series simply never matches — it doesn't cause an error.
  • SUV safety fallback: A "SUV unavailable" indicator with hidden SUV stats is expected behavior when a study's DICOM metadata can't support SUV calculation — it isn't an error.

Where to Find It

  • MPR, PET 3D MIP & Fusion view codes: Hanging Protocol Configuration → View Codes panel → drag CT: MPR Axial/Coronal/Sagittal, PT: PET 3D MIP, or PET-CT: Fusion Axial/Sagittal/Coronal onto a viewport
  • Display Presets & series matching: Hanging Protocol Configuration → select a viewport → HP Rules tab
  • New Default protocols: Image Viewer → Quick Access Strip or Layout Panel → PET Default / PET-CT Default / PET-CT Quick Read / MPR Default

Coming Soon: PET/CT SUV Tools – Volumetric SUV & Fusion ROI Fix

· 2 min read

Overview

PET/CT SUV measurement gets a dedicated Volumetric SUV tool with a full-view region overlay and adjustable thresholds, plus a fix so every ROI tool reports SUV correctly on fused viewports.

What's New

1. Volumetric SUV Becomes Its Own Tool

What changed:

The Probe tool is back to reporting a plain point SUV value on PET data, just as it does on any other modality. Lesion segmentation now lives in its own Volumetric SUV tool, available from the toolbar, the Image Control Wheel, or a custom hotkey. Clicking a lesion automatically segments the region, reports SUV max/mean/peak and volume, overlays the boundary across every plane and the whole-body MIP, and lets you adjust the segmentation threshold or SUV normalization on the fly.

Benefit:

A quick point SUV check with Probe, and a dedicated tool with visual confirmation and adjustable thresholds when you need volumetric measurement.


2. PET/CT Fusion ROI Tools Now Report SUV, Not HU

What changed:

Rectangle, Elliptical, Circle, and Freehand ROI tools drawn on a fused PET/CT viewport now report SUV statistics instead of Hounsfield Units, matching what the same tool reports on a PET-only viewport.

Benefit:

SUV measurement is now consistent across every ROI tool in Fusion Mode — no more switching viewports just to get a valid SUV reading.


Important Notes

  • Volumetric SUV Tool: A newer capability that may not yet be enabled in every environment — reach out to your OmegaAI representative if it doesn't appear in your toolbar. Measurements created by the Probe tool before this change remain labeled as Probe entries.
  • SUV safety fallback: A "SUV unavailable" indicator with hidden SUV stats is expected behavior when a study's DICOM metadata can't support SUV calculation — it isn't an error.

Where to Find It

  • Volumetric SUV Tool: Image Viewer → Probe toolbar group (Fusion Mode) → Volumetric SUV; also available via the Image Control Wheel and Hotkey Customization
  • Fusion ROI SUV: PET/CT Fusion Mode → draw any ROI tool on the fused viewport