High Resolution CT

Tim Street

Advancement in Computed Technology (CT) equipment has lead to a better understanding of cardiac imaging, improved CT angiograms, and better utilization of routine studies. The CCIR possesses a Siemens dual source Somatom Definition scanner.

Several features make this scanner unique when compared to other types of CT scanners.  We now have the capability to acquire a high resolution cardiac image on a single heart beat.  When performing data acquisition scans within a radiology department, we must always be concerned about the amount of radiation exposure a patient receives.  The Siemens Definition CT scanner offers several options to help control and even reduce the radiation dose. The two options that are most frequently used are the adjustable pulse gating and 4D caredose. These two options reduce the dose while maintaining high image quality and resolution.
 
Another benefit in the advancement of CT technology is the increase in data acquisition times.  This not only reduces the amount of time that a patient is required to hold their breath, but also reduces the amount of I.V. contrast that is needed for the scan.  This is especially true for the CT angiograms and routine studies. A reduction in I.V. contrast still yields high quality images while putting less stress on the patient’s body during the elimination phase.  By employing the latest in dose reduction technology and scanner speed, the CCIR is developing new protocols with very high image quality, also reducing the radiation exposure, and creating a more comfortable and safe environment for the patients.