An Analysis of Computed Tomography Diagnostic Reference Level in India Compared to Other Countries
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An Analysis of Computed Tomography Diagnostic Reference Level in India Compared to Other Countries
Kanika Kiran1, Satvik Sharma2, Shipra Saroj3, Rufaida Binte Jalal4, Dr. Lalit Kumar Gupta5
1. Assistant Professor, Department of Radiology Rayat Bahra University, Chandigarh,140301
2. Assistant Professor, Department of Radiology Rayat Bahra University, Chandigarh,140301
3. Assistant Professor, Department of Radiology Rayat Bahra University, Chandigarh,140301
4. Assistant Professor, Department of Radiology Rayat Bahra University, Chandigarh,140301
5. Professor, Department of Radiology Rayat Bahra University, Chandigarh,140301
Email- kanikakiran24@gmail.com
ABSTRACT
Background: Computed Tomography (CT) is an invaluable diagnostic tool that offers detailed internal images, but it involves exposure to ionizing radiation, which carries inherent risks. To manage these risks, Diagnostic Reference Levels (DRLs) have been developed as benchmarks to optimize radiation doses and ensure patient safety without compromising image quality. Objectives: This study examines the CT DRLs of some Indian states and then compare these values with someinternational. Published articles were reviewed in this work in Indian context on the adult Diagnostic Reference Levels for specific anatomic regions to identify the cause and extent of deviations and to examine possible strategies to optimize Computed Tomography radiation dose. This review also underscores the importance of establishing nationally endorsed DRLs influenced by local data and international best practices to promote safer CT imaging across diverse clinicalcontexts. Conclusion: Variations in radiation dose within and among Computed Tomography centers are frequently reported, including scanning technology, study design, and the use of computed tomography parameters. There are only few studies published on DRLs in India. These types of studies are essential for developing national standards in different regions of the country and to provide a valuable and correct comparison with international DRLs.
Keywords: Computed Tomography; Diagnostic Reference Levels; Dose-Length Product; CT Dose Index.
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