Top-Ten Tips for Dual-Energy CT in MSK Radiology

Frances E. Walstra; Jonathan Hickle; Peter Duggan; Rashid Alsharhan; Nicolas Murray; Paul Mallinson; Peter Munk; Hugue Ouellette

doi:10.1055/s-0039-1694756

Seminars in Musculoskeletal Radiology, Table of Contents

Semin Musculoskelet Radiol 2019; 23(04): 392-404
DOI: 10.1055/s-0039-1694756

Review Article

Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Top-Ten Tips for Dual-Energy CT in MSK Radiology

Authors

Frances E. Walstra

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Jonathan Hickle

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Peter Duggan

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Rashid Alsharhan

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Nicolas Murray

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Paul Mallinson

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Peter Munk

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada
Hugue Ouellette

¹Department of Radiology, Vancouver General Hospital/ University of British Columbia, Vancouver, British Columbia, Canada

Abstract

Dual-energy computed tomography (DECT) has the potential to detect musculoskeletal pathology with greater sensitivity than conventional CT alone at no additional radiation dose to the patient. It therefore has the potential to reduce the need for further diagnostic imaging or procedures (e.g., joint aspirations in the case of gout or magnetic resonance imaging to confirm undisplaced fractures).

DECT is a well-established technique for the detection of gout arthropathy. Multiple newer applications have shown clinical potential including bone marrow edema detection and metal artifact reduction. Collagen analysis, bone marrow lesion detection, and iodine mapping in CT arthrography are areas of possible future application and development.

This article outlines 10 tips on the use of DECT imaging of the musculoskeletal system, explaining the technique and indications with practical suggestions to help guide the radiologist.

Keywords

dual-energy CT - gout - bone marrow analysis - metal artifact reduction - collagen analysis - iodine mapping

Full Text

References

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