Title
Comparison of DLP and CTDI in SOMATOM Definition Flash and GE revolution computed tomography scanners at AIIMS, India
Authors
Lalit Gupta*, Ashok Sharma, Ashish Kumar Shukla & Sumit Tyagi
Affiliation
Department of Radiodiagnosis and Imaging Technology, Santosh Deemed to be University Ghaziabad, Uttar Pradesh, India; *Corresponding author
Lalit Gupta - E-mail: lalitgupta@aiims.gov.in; Phone: +919899264851
Ashok Sharma - E-mail: drashoksharmac10@gmail.com; Phone:
+919811111933
Ashish Kumar Shukla - E-mail: drashish07@rediffmail.com; Phone:
+919415461637
Sumit Tyagi - E-mail: Sumittyagi50@gmail.com; Phone: +91 9837171560
Article Type
Research Article
Date
Received March 1, 2026; Revised March 31, 2026; Accepted March 31, 2026, Published March 31, 2026
Abstract
The increasing radiation exposure from computed tomography (CT) scans raises concerns about patient safety, necessitating the comparison of radiation dose parameters across different CT scanners. This study compares the Dose Length Product (DLP) and Computed Tomography Dose Index (CTDI) values between the SOMATOM Definition Flash and GE Revolution CT scanners at AIIMS, New Delhi. Our findings reveal that the SOMATOM scanner consistently operates within international Diagnostic Reference Levels (DRLs), while the GE scanner shows significantly higher radiation doses, particularly for chest and abdomen scans. This research advances the understanding of CT dose optimization and highlights the need for scanner-specific protocols to ensure radiation safety.
Keywords
Computed tomography (CT), dose length product, diagnostic reference levels, radiation dose, tomography dose Index
Citation
Gupta et al. Bioinformation 22(3): 1712-1716 (2026)
Edited by
Ritik Kashwani
ISSN
0973-2063
Publisher
License
This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.
