LV & RV Functionpowered by 
QMass
Benefits
- Highly reliable and robust quantitative analysis – the nr.1 vendor-independent choice of many departments for more than 15 years. The QMass ventricular function module has supported clinical research in over 650+ peer reviewed publications
- The user interface makes function analysis easy and practical
- Automatic algorithms such as the LiveContour for quick LV function, save time
- Other algorithms include such as MassK allow for quick exclusion of papillary muscle and trabeculations
Features included:
- Global Function
- Left ventricle (LV) and right ventricle (RV) volume analysis
- Guided workflow for left and right ventricle volume analysis
- Absolute and indexed results
- Choose from different normal ranges
- Add z-scores to results
- Biplane Analysis
- Enhanced LV endocardial “LiveContour” detection
- “MassK” algorithm available for automatic segmentation of papillary muscles and trabeculations
- Regional Function Analysis
- Wall motion analysis
- Wall thickness and wall thickening measurements
- Wall thickness changes over time
- Results are displayed within curves or bulls eye
- Display of results in AHA 16 segment model
- Other features include
- Visual scoring for wall motion, perfusion and infarct size
Selected Literature:
- Alfakih, Khaled, et al. "Normal human left and right ventricular dimensions for MRI as assessed by turbo gradient echo and steady‐state free precession imaging sequences." Journal of Magnetic Resonance Imaging 17.3 (2003): 323-329.
- Driessen, Mieke MP, et al. "Pressure overloaded right ventricles: a multicenter study on the importance of trabeculae in RV function measured by CMR." The international journal of cardiovascular imaging 30.3 (2014): 599-608.
- Mooij, Christiaan F., et al. "Reproducibility of MRI measurements of right ventricular size and function in patients with normal and dilated ventricles." Journal of Magnetic Resonance Imaging 28.1 (2008): 67-73.
- Luijnenburg, Saskia E., et al. "Intra-observer and interobserver variability of biventricular function, volumes and mass in patients with congenital heart disease measured by CMR imaging." The international journal of cardiovascular imaging 26.1 (2010): 57-64.
List of publications
Did you know that:
- Function is also possible with CT using the exact same post processing method? Because of the streamlined analysis workflow, Medis Suite allows you to compare CT and MR function studies with the highest diagnostic confidence.
- Contours traced during the LV function analysis can be loaded into the QStrain app for subsequent strain analysis based on features tracking MR
Clinical Apps
All Medis Suite MR apps in blue are cleared for clinical use in Europe, the USA, Canada, Japan and South-Korea.
Medis, QMass and QFlow are registered trademarks of Medis Associated BV.
QMass and QFlow are based on image processing algorithms developed at the Division of Image Processing, Department of Radiology, Leiden University Medical Center, the Netherlands
Research Apps
All Medis Suite MR apps in purple are for research use only.
1) Vesselmass is not integrated in Medis Suite MR and runs as a standalone application.