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Current Urology Reports

Erschienen in:

01.01.2021 | NEW IMAGING TECHNIQUES (S Rais-Bahrami and K Porter, Section Editors)

Dual-Energy CT for Urinary Stone Evaluation

verfasst von: Alex Nourian, Eric Ghiraldi, Justin I. Friedlander

Erschienen in: Current Urology Reports | Ausgabe 1/2021

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Abstract

Purpose of Review

Conventional CT imaging is an excellent tool for the diagnosis of nephrolithiasis however is limited in its ability to detect stone composition. Dual-energy CT (DECT) scans have demonstrated promise in overcoming this limitation. We review the current utility of DECT in nephrolithiasis.

Recent Findings

DECT is superior to conventional CT in differentiating uric acid stones from non-uric acid stones, with numerous studies reporting sensitivities and specificities approaching > 95%. Dose reduction protocols incorporating low-dose CT scans are commonly used, providing significantly lower effective radiation doses compared to conventional CT. DECT remains an effective diagnostic tool in patients with large body habitus.

Summary

DECT can accurately detect uric acid stones, which can help guide which stones may be suitable to medical dissolution. Further studies evaluating the effectiveness of DECT in guiding management of patients with nephrolithiasis can help to promote its widespread use.

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Titel: Dual-Energy CT for Urinary Stone Evaluation
verfasst von: Alex Nourian
Eric Ghiraldi
Justin I. Friedlander
Publikationsdatum: 01.01.2021
Verlag: Springer US
Erschienen in: Current Urology Reports / Ausgabe 1/2021
Print ISSN: 1527-2737
Elektronische ISSN: 1534-6285
DOI: https://doi.org/10.1007/s11934-020-01019-5

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Abstract

Purpose of Review

Recent Findings

Summary

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