We assessed the potential of dual-energy computed tomography (CT) for the differentiation between uric acid (UA)-containing and non-UA-containing urinary stones. Forty urinary stones of 16 different compositions in two sizes (< and >/= 5 mm) were examined in an ex vivo model. Thirty stones consisted of pure calcium oxalate (whewellite or … Read more

The following study was presented at the UBC Radiology Scientific Day, June 2008 & Stanford Radiology’s 10 th Annual International Symposium on Multidetector CT In May 2008. Purpose: To investigate whether DECT can accurately determine composition of renal calculi at acceptable dose. To observe how this information changes patient management in the … Read more

The following abstract summarizes a talk held during the 10th Annual International Symposium Multidetector Row CT, Stanford Department of Radiology, Las Vegas, Tuesday, May 13th 2008 (Session V: Trauma/ Musculoskeletal) BACKGROUND The dual energy application designed to identify uric acid deposition within kidneys (kidney stones) has been proven both in vitro and … Read more

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HISTORY A 71-year-old male patient presented with painful swelling of the first metatarsophalangeal joint of the left foot. The routine clinical-chemical work-up showed a slight hyperuricaemia and mild renal insufficiency. In order to conclusively assess the cause of arthritis the patient underwent puncture … Read more

The following question has been sent by Luke Riverstone, Radiographer, Qscan Radiology Clinics, Australia: We have recently obtained a Siemens DSCT.  We performed our first DE KUB the other day and the Dual Energy Software indicated that there was 1 Kidney stone that was of a Uric Acid composition and 1 was … Read more

Abstract Objectives: To assess the value of dual-energy contrast-enhanced computed tomography (CT) imaging for the detection of urinary stone disease using dual-source CT. Materials and Methods: Forty consecutive patients (mean age 46.6 ± 16.2 years, range 27–85 years) suspected of having urinary stone disease underwent dual-source CT of the urinary tract. A … Read more