Role of Dual Energy CT Scan in Evaluation of the Chemical Composition of Renal Stones

The determination of the composition of different types of renal stones using dual energy computed tomography is essential for the selection of an appropriate management strategy. Examine the role of dual energy computed tomography in the in vitro characterization of renal stones and confirm the findings using an X-ray diffraction pattern and Fourier transform infrared spectroscopy. Included were forty randomly collected renal stones that underwent dual energy computed tomography for characterization of urinary calculi. insert stones in the bovine kidney model. Linear attenuation coefficients were measured. The dual energy ratio and index were calculated and used to detect the composition of renal stones. To establish the composition of renal stones, an X-ray diffraction pattern and Fourier transform infrared spectroscopy were used. Dual energy computed tomography can differentiate between uric acid (UA) and calcified stones. A dual energy ratio of 1.02 to 1.1 correctly predicted UA stones, while a ratio of 1.24 to 1.65 correctly predicted calcium-containing stones. A dual energy index between 0.00174 and 0.00918 accurately predicted UA stones, and a dual energy index between 0.0495-0.1497 accurately predicted calcium containing stones. Through the in-vitro study, dual energy computed tomography characterized 2/40 UA containing stones and characterized 38/40 calcium containing stones. The characterization of the dual-energy computed tomography renal stones proved to be extremely compatible with the X-ray diffraction pattern and Fourier transform infrared spectroscopy. This study demonstrates that dual-energy computed tomography can be employed in vitro to accurately differentiate between UA and calcified renal stones.

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“…The mean attenuation coefficient of each stone was measured in the DE images. [6] Dual Energy Ratio (DER):…”

Section: The Mean Attenuation Coefficient Values (Hu) Measurements Of...mentioning

confidence: 99%

Characterization of Renal Stone Composition Using the Dual-Energy Technique of Computed Tomography: An in Vitro Study

et al. 2023

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Role of Dual Energy CT Scan in Evaluation of the Chemical Composition of Renal Stones

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Characterization of Renal Stone Composition Using the Dual-Energy Technique of Computed Tomography: An in Vitro Study

Characterization of Renal Stone Composition Using the Dual-Energy Technique of Computed Tomography: An in Vitro Study

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