Create 3D Patients​

After uploading a scan, Lumi generates a 3D patient, which includes the uploaded scan. By clicking on the 3D patient, the web-based 3D viewer opens which allows you to inspect the scan and/or start creating and/or adding 3D models to the 3D patient. 3D models can be created using the segmentation functions (see below) or by manually uploading a 3D model (go to: STL Upload). 

Note: Segmentations should always be verified by the intended users (go to: Product Specification) by outline analysis on the source medical image, since false positive and negative segmentation regions can occur. For instructions to verify your segmentations, go to :Verify Hologram.

Note: The visualization of the image data and the output representations are based on the data quality and resolution of the original image data series. In case of poor image contrast, resolution, scan artifacts (such as patient movement) or other image related defects or inaccuracies, this can lead to inaccurate results.

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T1c Segmentation Function (T1cSF)​

The T1cSF transforms T1 MRI scans (MRI-T1) of the head into 3D models of the skin, brain, and ventricles.

Note: Lumi's T1cSF can thereby be used for tumor segmentation only in case of a single intracranial contrast enhancing tumor, diagnosed by a neurosurgeon or a neuroradiologist, with a minimal volume of 2.0 cc (0.1 in3) and a minimal diameter in any direction of 15 mm (0.6 inch), and a maximum volume of 100cc (6.1 in3) and a maximal diameter in any direction of 75 mm (3.0 inch).

The following requirements apply for the T1cSF:

• Image type: T1 MRI with contrast of the cranium from the vertex to at least the foramen magnum level and maximally to the C2 level.

• Slices per series: Minimum 100 slices per series with a maximum slice thickness and slice interval of 2 mm.

 

CT non-contrast Segmentation Function (CTncSF) 

The CTncSF transforms non-contrast enhanced CT Scans of the head into 3D Models of the skin, skull, brain, and the ventricles.

The following requirements apply for the CTncSF:

• Image type: CT scan without contrast of the cranium from the vertex to at least the foramen magnum level and maximally to the C2 level.

• Slices per series: Minimum 100 slices per series with a maximum slice thickness and slice interval of 2 mm.

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Instructions to start the T1cSF or CTncSF

1. Open a 3D patient

2. Press the + button at the bottom of the menu on the right side

3. Select 'Automatic Segmentation'

4. Select the anatomical structures you wish to segment

5. Press 'START'

6. Wait for the segmentation to finish (approximately 15 minutes)