state-of-the-art medical imaging software solutions

QPS - Quantitative Perfusion SPECT

 QPS (Quantitative Perfusion SPECT) is an interactive application for the automatic segmentation,
quantification, analysis & display of myocardial perfusion SPECT.



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New Features

Improved Perfusion Quantification, or PFQ

A more accurate quantitative perfusion analysis is the key advantage of PFQ, 

the improved quantification module of QPS. This software provides as its 

primary nuclear variable the Total Perfusion Deficit (TPD), reflecting the extent 

and severity of the overall perfusion defect, and correlating strongly with the 

widely used visual variables of SSS or % myocardium abnormal. PFQ has been 

shown to be superior to the previous quantitative algorithm of QPS and even 

to be able to outperform expert visual analysis, despite the fact that the experts 

take into account information from the patient’s history and stress test results 

in forming their final interpretation (Slomka, et al J Nucl Cardiol 2005;12:66-77). 

If this is accomplished in the expert laboratory, the importance of PFQ in less 

experienced laboratories is likely to be even more significant. PFQ also allows a 

greatly simplified addition of new perfusion databases.

Optional Features

QPS Companion:AHA automatic 17 segment scoring, eccentricity calculation

Fusion/CT: fusion overlays of CT/CTA with SPECT, coronary artery tree 3D display

PlusPack: Prone/supine, serial change, motion frozen, QGS phase information, shape index, PowerPoint

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