Data Segmentation

Have CT or MRI patient data showcasing the ideal anatomy or disease state for your project?

United Biologics can take anatomy from your 2D patient data and turn into a 3D model ready for use.

What types of data can you segment?

We can segment anatomy from any heart or vessel structure scanned using Computed Tomography (CT) or Magnetic Resonance Imaging (MRI).

What are the file requirements for CT data segmentation?

In order to segment your CT data, we need the raw, unaltered DICOM (.dcm) files with the following guidlines:

Heart Structures

(Examples: aortic and pulmonary valves, coronaries, LAA …)

Standard ECG-triggered diastolic protocol with good contrast, more specifically:

  • 100-120kV, 550-700mAs
    Slice distance: 0.3-0.7mm (0.5mm most common)
  • Slices are incremental or (at least) equal to slice distance
  • CT scanner with 64 or more slices to avoid motion and misalignment artifacts
  • Medium contrast on the left or right side of the heart for diagnostic imaging
  • Heartbeat below 65
  • For the access route (if required): see vessel structure details below
  • Ideally, with the patient holding their breath

Vessel Structures

(Examples: TAA, AAA, coarctation …)

Standard vascular protocol with good contrast, more specifically:

  • 100-120kV, 550-700mAs
  • Slice distance: 0.7-1mm
  • Slices are incremental or (at least) equal to slice distance
  • CT scanner with 16 or more slices to avoid long scans
  • No ECG triggering required
  • Medium contrast on the left or right side of the heart for diagnostic imaging
What are the file requirements for MRI data segmentation?

In order to segment your MRI data, we need the raw, unaltered DICOM (.dcm) files with the following guidlines:

Heart Structures

(Examples: aortic and pulmonary valves, coronaries, LAA …)

Standard diastolic protocol with good contrast, more specifically:

  • Slice distance: 0.3-0.7mm (0.5mm most common)
  • Slices are incremental or (at least) equal to slice distance
  • The higher the spatial resolution the better (as long as the signal-to-noise ratio permits)
  • Ideally, with the patient holding their breath
  • Contrast medium (e.g. Ablavar®
    ) on the left or right side of the heart for diagnostic imaging
  • For full heart: it is preferable to obtain 3D volume data (at least) three times and merge it into
    one file so that all cardiovascular structures contain contrast medium
  • Important rule: nearly isotropic voxels (not standard)

Vessel Structures

(Examples: TAA, AAA, coarctation …)

Standard vascular protocol with good contrast, more specifically:

  • Slice distance: 0.7-1mm
  • Slices are incremental or (at least) equal to slice distance
  • The higher the spatial resolution the better (as long as the signal-to-noise ratio permits)
  • Contrast medium (e.g. Abalavar®
    ) on left or right side of the heart for diagnostic imaging
  • Important rule: nearly isotropic voxels (not standard)
How is data transferred for segmentation?

Data can be transferred to United Biologics via the following ways:

  • Flash Drive
  • One Drive
  • Drop Box
  • WeTransfer
  • CD-ROM
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