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Low-dose abdominal CT for detection of urinary stone disease – Impact of additional spectral shaping of the X-ray beam on image quality and dose parameters

posted by dsct.com | Jul 27, 2017
dsct.com

To evaluate a novel tin filter-based abdominal CT protocol for urolithiasis in terms of image quality and CT dose parameters. Read more

Case: Exclusion of urolithiasis in the presence of contrast media using dual energy

posted by Axel Kuettner, M.D. | Aug 28, 2009
Axel Kuettner, M.D.
  • [1] Conventional 5 mm axial image of the lower pole of the kidneys. In the right kidney, the hyperenhancing area could be a calcified nodule.
  • exclusion-of-urolithiasis-in-the-presence-of-contrast-media-using-dual-energy-2[2] High resolution coronal reconstruction displays a nodular hyperenhancing nodule.
  • [3] High resolution sagittal reconstruction confirms the presence of a nodular hyperenhancing nodule, making the diagnosis of a renal calculus likely.
  • [4] Virtual non-enhanced analysis shows that the major component of the nodular formation is iodine, which is no longer present in the virtual non-enhanced image.

Case history: 45-year-old female with cholangiocellular carcinoma and known peritoneal carcinosis presents for follow-up scan post surgery and post chemotherapy. Question: Can virtual non-enhanced imaging confirm the presence of a small renal stone in the lower pole of the right kidney found incidentally? Read more

Protocol Dual Energy for the evaluation of urolithiasis

posted by Anno Graser, M. D. | Oct 23, 2008
Anno Graser, M. D.

Please, click on the title to see the protocol. Read more

Case: DSCT for Evaluation of Urolithiasis

posted by Anno Graser, M. D. | Oct 23, 2008
Anno Graser, M. D.
  • spiral-de-1a.jpg
  • spiral-de-1b.jpg
  • spiral-de-2a.jpg
  • spiral-de-2b.jpg

History A 34 year-old female (A) and a 55 year-old male (B) patient were both referred for MDCT evaluation of a known urinary calculi. A non-enhanced MDCT scan of the abdomen was performed on the Dual Source CT (DSCT) using spiral Dual Energy evaluation. Diagnosis The Dual Energy acquisition allowed not only a … Read more



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