Four Panel Medical Viewer App

A MATLAB® App Designer example that lets researchers and developers explore 3-D and 4-D medical image volumes interactively in MATLAB — without switching to a separate DICOM viewer. The FourPanelMedicalViewerApp app displays a medical volume simultaneously in three orthogonal 2-D slice views (transverse, sagittal, and coronal) and in a 3-D volume rendering, with support for file/folder/PACS import, synchronized crosshair navigation, multiple 3-D rendering styles, and 4-D time-series playback. Because it is delivered as an App Designer example, you can extend it with your own UI components — intensity windowing, ROI drawing, custom measurements — to fit the visualization tasks in your own workflow.

Features

• Multi-source data import — Load medical volumes from single files (DICOM, NIfTI, NRRD), from a folder containing a DICOM series, or from a PACS server through the embedded PACSConnectionApp.
• Synchronized orthogonal views — Visualize a medical volume in transverse, sagittal, and coronal 2-D slice viewers together with a 3-D volume rendering, all kept in sync.
• Interactive crosshair navigation — Drag the crosshair in any 2-D panel to update slice indices across all views. Scroll through slices using the mouse wheel or the vertical slider.
• 3-D rendering styles — Switch between VolumeRendering, MaximumIntensityProjection, and GradientOpacity rendering.
• 4-D time-series playback — Automatically detect 4-D time-varying volumes (for example, cardiac cine or dynamic contrast-enhanced data) and step through frames using previous/next buttons, a slider, or animated playback.
• Reusable custom UI components — Use the FourPanelMedicalViewer and ImageStackScrubber components in standalone mode or embed them in your own apps.

Setup

MathWorks Products (https://www.mathworks.com)

Requires MATLAB release R2026b or newer.

• MATLAB®
• Image Processing Toolbox™
• Medical Imaging Toolbox™

Installation

1. Clone or download this repository.
2. Open MATLAB and set the repository folder as the current working folder, or add it to the MATLAB path.
3. Open the ImageStackScrubber.mlapp and FourPanelMedicalViewer.mlapp custom UI components in App Designer. In the Designer tab of the App Designer toolstrip, select Configure for Apps, then select OK in the dialog. When the metadata-updated success message appears, select Add to Path. Repeat for both components.

Getting Started

Open FourPanelMedicalViewerApp.m in App Designer or see the guided walkthrough on the documentation page.

Example Files

File	Description
FourPanelMedicalViewerApp.m	Main app that assembles the toolstrip, working area, and data-import workflows.
FourPanelMedicalViewer.mlapp	Custom UI component providing four synchronized panels (transverse, sagittal, coronal, 3-D).
ImageStackScrubber.mlapp	Custom UI component providing a single-plane 2-D slice viewer with a vertical slider and crosshair interaction.
PACSConnectionApp.m	Dialog app for connecting to a PACS server, querying, and retrieving DICOM data.
PACSConfigManager.m	Utility class for managing PACS connection configurations.
FourPanelMedicalViewerApp.xml	Main app component layout data
PACSConnectionApp.xml	PACS Connection App component layout data

License

The license is available in the license.txt file in this repository.

Community Support

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