Efficacy of Reduced dose CT Protocol for CT guided procedures–Does it make a difference?

Dr Samaresh Sahu; Dr SA Raheem; Dr Aneesh Mohimen; Dr Akhilesh Rao; Dr Ashwani Kumar

Volume : IX, Issue : VI, June - 2019

Efficacy of Reduced dose CT Protocol for CT guided procedures–Does it make a difference?

Dr Samaresh Sahu, Dr Sa Raheem, Dr Aneesh Mohimen, Dr Akhilesh Rao, Dr Ashwani Kumar

Abstract :

Aim & Objectives: 1. To demonstrate that a low dose protocol for CT–guided intervention procedures is as effective in tissue sampling without a decrease in efficacy. 2. To assess the technical success of CT guided procedures performed using low dose CT protocols. 3. To assess the diagnostic yield of CT guided biopsies performed using low dose CT protocols. Material & Method: This prospective study was carried out at a cross tertiary care hospital for a duration of two years where 50 patients were evaluated under reduced CT scan dose and the results were compared with equal number of cohort of patients who underwent similar CT guided procedure using conventional radiation doses. The results were assessed for technical success as well as diagnostic yield. Result: There was 86% reduction in the radiation dose in the diagnostic subgroup while 81.6% reduction in the therapeutic subgroup of patients with reduced radiation dose as compared to the conventional dose. There was 100% technical success in the reduced radiation dose group while the diagnostic yield was 89.5%. Conclusion: Use of reduced factors in CT guided procedures results in significant reduction in the radiation dose to the patients without compromising the diagnostic yield.