03:10am Friday 20 October 2017

Dual-Energy CT Accurately Diagnoses Gout in Acute, Emergency Settings

It enables physicians to diagnose many patients’ conditions faster and more accurately as it can better characterize tissue composition better than conventional CT.

Gout is an extremely painful kind of arthritis that occurs when uric acid builds up in and around the joints. “Doctors often use clinical features to diagnose gout, however many other diseases can mimic or coexist with it and conventional imaging techniques like X-rays, ultrasound, and conventional CT are not specific enough to facilitate a diagnosis,” said Savvakis Nicolaou, MD, lead author of the study.

The study, performed at Vancouver General Hospital in Vancouver, BC, included five cases in which the diagnosis for gout was made or excluded on the basis of dual-energy CT. “In every case, conventional imaging techniques were used before applying advanced dual-energy CT technology, however we were not able to make a diagnosis based solely upon those findings,” said Nicolaou.

“To our knowledge, dual-energy CT is the only imaging method described to date that can confirm the diagnosis of topheceaous (or chronic) gout with high accuracy,” he said.

“Dual-energy CT is an exciting problem-solving tool that can reliably diagnose the presence of topheceaous gout, therereby expediting patient treatment, potentially reducing the burden of chronic complications associated with gout,” said Nicolaou.

This study appears in the April issue of the American Journal of Roentgenology. For a copy of the full study or to request an interview with Dr. Nicolaou, please contact Heather Curry via email at hcurry@acr-arrs.org or at 703-390-9822.

About ARRS

The American Roentgen Ray Society (ARRS) was founded in 1900 and is the oldest radiology society in the United States. Its monthly journal, the American Journal of Roentgenology, began publication in 1906. Radiologists from all over the world attend the ARRS annual meeting to participate in instructional courses, scientific paper presentations and scientific and commercial exhibits related to the field of radiology. The Society is named after the first Nobel Laureate in Physics, Wilhelm Röentgen, who discovered the x-ray in 1895.

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