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Observational Study
, 27 (12), 5034-5040

Dual Energy CT Iodine Map for Delineating Inflammation of Inflammatory Arthritis

Observational Study

Dual Energy CT Iodine Map for Delineating Inflammation of Inflammatory Arthritis

Takeshi Fukuda et al. Eur Radiol.


Iodine mapping is an image-processing technique used with dual-energy computed tomography (DECT) to improve iodine contrast resolution. CT, because of its high spatial resolution and thin slice reconstruction, is well suited to the evaluation of the peripheral joints. Recent developments in the treatment of inflammatory arthritis that require early diagnosis and precise therapeutic assessment encourage radiological evaluation. To facilitate such assessment, we describe DECT iodine mapping as a novel modality for evaluating rheumatoid arthritis and psoriatic arthritis of the hands and feet.

Key points: • Dual-energy CT iodine mapping can delineate inflammation of peripheral inflammatory arthritis. • DECT iodine mapping has high spatial resolution compared with MRI. • DECT iodine mapping has a high iodine contrast resolution. • DECT iodine mapping may reflect therapeutic effects.

Keywords: Arthritis; Computed tomography; Dual energy; Enthesitis; Inflammation.

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    1. Eur Radiol. 2013 Oct;23 (10 ):2666-75 - PubMed
    1. Radiology. 2009 Jul;252(1):225-31 - PubMed
    1. Ann Rheum Dis. 2013 Jun;72 (6):804-14 - PubMed
    1. Best Pract Res Clin Rheumatol. 2015 Apr;29(2):290-305 - PubMed
    1. Radiology. 2010 Aug;256(2):617-24 - PubMed

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