This study investigates if a new medical device, which injects contrast media and flushing solution into humans to increase the visibility of images taken of the human body for diagnostic purposes, is easier to handle, quicker and cheaper than an older injector.

The study compares an investigational injection system (Centargo) for computed tomography (CT) to a currently marketed injection system (Stellant MP) in terms of efficiency, cost, performance and user satisfaction (Part 1). In addition, the reliability of the new injection system Centargo is tested (Part 2).

Inclusion Criteria:

• Adult subjects referred for contrast-enhanced computer tomography using a power injector

Exclusion Criteria:

• Pregnant and lactating women
• Subjects with know hypersensitivity to iodinated contrast media
• Subjects with unacceptable renal function per local guidelines

Availability of this study's data will be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access.

As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014.

Interested researchers can use www.clinicalstudydatarequest.com to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the Study sponsors section of the portal.