Vol. 3, 2018

Original research papers

Radiology

THORACO-ABDOMINAL TRIPHASIC CT IN ONCOLOGIC FOLLOW-UP: ASSESSMENT AND ADVANTAGES OF “LOW DOSE” PROTOCOL

Andrea Bonfanti, Elena Ciortan, Luciano Abate, Ruggero Luigi Baroni, Serena Padelli, Roberto Moltrasi

Pages: 159–162

DOI: 10.21175/RadProc.2018.34

The objective was to compare the contrast enhanced computed tomography (CT) “LOW DOSE” protocol for thoraco-abdominal scans, with the standard CT protocol for oncologic follow up. We analyzed these two different imaging techniques and the overall radiation dose in order to determine benefits in terms of diagnosis. We included 50 patients where oncologic follow up included a triphasic thoraco-abdominal CT for staging of liver disease. Eligibility criteria were the medical indication for a contrast-enhanced thoraco-abdominal CT as part of an oncologic follow up (breast cancer, hepatocarcinoma, neuroendocrine tumors, kidney cancer and prostatic cancer) and the availability of previous enhanced CT scans performed over the past year of follow up. The LOW DOSE protocol for triphasic CT in oncologic follow up permits saving of effective dose up to 50% (27% on average) for each scan and an overall saving of up to 40% (15% on average) for complete procedure in the normal BMI group. The LOW DOSE protocol was also effective in the diagnosis of thromboembolic disease. All the scans from the LOW DOSE CT protocol were analyzed by radiologists, all with at least 10 years of experience, unaware of the introduction of the protocol – there were no reported differences or difficulties in diagnosis compared to the standard CT protocol.
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