Tristan Pascart1,2, Jean-François Budzik2,3. 1. Department of Rheumatology, Lille Catholic Hospitals. 2. MabLab UR4490, University Lille, ULCO. 3. Department of Diagnostic and Interventional Imaging, Lille Catholic Hospitals, University of Lille, Lille, France.
Abstract
PURPOSE OF REVIEW: To give an overview of what can reasonably be considered as known about dual-energy computed tomography (DECT) in crystal-related arthropathies, and what still needs to be explored. RECENT FINDINGS: Recent studies suggest an overall superiority of DECT over ultrasound in gout in terms of sensitivity (89 vs. 84%) and specificity (91 vs. 84%), except in early disease. Additional studies are needed to optimize DECT postprocessing settings in order to improve the specificity of the technique and eliminate all artifacts. Evidence has been controversial concerning DECT's ability to detect monosodium urate (MSU) crystal deposits on vessel walls, or whether or not MSU-coded plaques are artifacts. DECT can be used to monitor MSU crystal depletion during urate-lowering treatment; MSU crystal volume is associated with cardiovascular risk and disease activity. There are some reports on calcium-containing crystal deposition diseases (calcium pyrophosphate and basic calcium phosphate) demonstrating that DECT can characterize and discriminate between the different types of crystals. SUMMARY: Our knowledge about the use of DECT in crystal-related arthropathies continues to expand. Some unknowns have been clarified but there's still lots to learn, particularly concerning gout management and the potential use of DECT in calcium-containing crystal-related arthropathies.
PURPOSE OF REVIEW: To give an overview of what can reasonably be considered as known about dual-energy computed tomography (DECT) in crystal-related arthropathies, and what still needs to be explored. RECENT FINDINGS: Recent studies suggest an overall superiority of DECT over ultrasound in gout in terms of sensitivity (89 vs. 84%) and specificity (91 vs. 84%), except in early disease. Additional studies are needed to optimize DECT postprocessing settings in order to improve the specificity of the technique and eliminate all artifacts. Evidence has been controversial concerning DECT's ability to detect monosodium urate (MSU) crystal deposits on vessel walls, or whether or not MSU-coded plaques are artifacts. DECT can be used to monitor MSU crystal depletion during urate-lowering treatment; MSU crystal volume is associated with cardiovascular risk and disease activity. There are some reports on calcium-containing crystal deposition diseases (calcium pyrophosphate and basic calcium phosphate) demonstrating that DECT can characterize and discriminate between the different types of crystals. SUMMARY: Our knowledge about the use of DECT in crystal-related arthropathies continues to expand. Some unknowns have been clarified but there's still lots to learn, particularly concerning gout management and the potential use of DECT in calcium-containing crystal-related arthropathies.
Authors: Andrea S Klauser; Sylvia Strobl; Christoph Schwabl; Werner Klotz; Gudrun Feuchtner; Bernhard Moriggl; Julia Held; Mihra Taljanovic; Jennifer S Weaver; Monique Reijnierse; Elke R Gizewski; Hannes Stofferin Journal: Diagnostics (Basel) Date: 2022-05-16
Authors: Maria Sotniczuk; Anna Nowakowska-Płaza; Jakub Wroński; Małgorzata Wisłowska; Iwona Sudoł-Szopińska Journal: J Clin Med Date: 2022-09-05 Impact factor: 4.964