The protocol adapts its table speed and 3D SUREExposure to the anatomical zone approached during a single acquisition: Helical Pitch (HP) Fast and SUREExposure 3D Low Dose in the thorax; HP Standard and SUREExposure 3D High Quality in the upper abdomen; and HP Fast and SUREExposure 3D Standard in the pelvis.
Compared to a standard thoracoabdominal protocol, which requires two acquisitions, vHP-onco reduces the need for a separate acquisition over the upper abdomen, by injecting the iodinated contrast at a low rate (1.5ml/s) and starting the acquisition 65 seconds from the start of the injection.
‘We obtain a hybrid arterial and portal injection in a single acquisition, which brings certain ergonomics to the radiologist, who no longer has to juggle between the different series of images to be loaded in the MPR (MultiPlanar Reformation) application for review in different planes,’ he said. ‘The vHP protocol enables optimization of dose and image quality according to the anatomical region studied, and avoid an additional acquisition in the upper abdomen compared to a standard thoraco-abdo-pelvic protocol, which is not negligible during repeated CT scans in oncological follow-up,’ he added.
The protocol also enables a 25.11% decrease in average DLP compared to a standard thoracic-abdominal-pelvic CT protocol, and helps reduce the iodinated contrast injection rate for more safety and comfort.
‘A care pathway has been set up in collaboration with the day hospital, which prepares our patients with an IV Catheter for the injection,’ Jean-François Adam said. ‘This improves comfort for the patient and the team, with better fluidity in the scanner department and making the display of MPRs more ergonomic for the radiologist.’
Providing care in a safe, effective, efficient and respectful manner remains a challenge in daily practice, he explained. ‘We need to be able to adapt to the needs of the population and ensure equal access to care to all,’ he added.
The medical and nursing team is dynamic and constantly looking for innovative ways to optimize workflow and patient care. To do this, ‘continuous training, updating, discovering different practices and horizons, particularly through events such as the CT User Meeting, are mandatory,’ he concluded.