SPECT Reprojection

Some nuclear medicine studies are moving towards using SPECT rather planar acquisitions. One of the most common examples of which are lung V/Q studies. Transitions like these can be very challenging. For this reason, UniSyn MI supports the reprojection of SPECT/CT acquisitions to generate planar-like images at multiple angular views about the patient. Note that these images generated using this tool are intended for educational purposes only.

• Using both the original SPECT series and the planar reprojections, you can help train your team to read from both modalities and to look for correlations between the two.
• The reprojected images are produced at the click of a button and exported back to your DICOM database as new series in the original study.

UniSyn MI generates these images using ray-tracing projection techniques that models photon attenuation. UniSyn MI needs a CT series to be registered to the SPECT dataset.

• Eight planar-like image are produced at orthogonal and oblique angles.
• The use of this feature is currently limited to lung SPECT scans performed using Tc-99m based tracers.