The company offers post-processing software for quantifying cardiovascular images, covering MRI, CT, X-ray angiography, intravascular ultrasound, and optical coherence tomography. Medis has been in business since 1989 and has introduced several quantification software solutions that have proven their value in clinical practice and research. Their flagship products are QAngio® XA and QMass® MR, which are widely used by clinicians and core labs worldwide to help assess cardiac function. Medis has its corporate headquarters in Leiden, the Netherlands, and subsidiaries in Raleigh, NC, USA; Birmingham, United Kingdom; Toronto, ON, Canada; and Tokyo, Japan.