Unenhanced MDCT in Patients with Suspected Urinary Stone Disease: Do Coronal Reformations Improve Diagnostic Performance?
Mazda Memarsadeghi1,
Cornelia Schaefer-Prokop2,
Mathias Prokop3,
Thomas H. Helbich1,
Christian C. Seitz4,
Iris M. Noebauer-Huhmann1 and
Gertraud Heinz-Peer1
1 Department of Radiology, Medical University of Vienna, General Hospital of
Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria.
2 Department of Radiology, University of Amsterdam, Amsterdam, The
Netherlands.
3 Department of Radiology, University Medical Center Utrecht, Utrecht, The
Netherlands.
4 Department of Urology, Medical University of Vienna, Vienna, Austria.

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Fig. 1A —Patient with urinary stone disease. Images show one of nine stones
that were missed on coronal reformations from thick axial sections. Missed
stone in this case was in distal ureter. Renal stone (arrow) is
visible on axial MDCT image.
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Fig. 1B —Patient with urinary stone disease. Images show one of nine stones
that were missed on coronal reformations from thick axial sections. Missed
stone in this case was in distal ureter. Renal stone (arrow) is
visible on coronal reformation from thin (1.25 mm) axial section.
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Fig. 1C —Patient with urinary stone disease. Images show one of nine stones
that were missed on coronal reformations from thick axial sections. Missed
stone in this case was in distal ureter. Renal stone is not visible on coronal
reformation from thick (3 mm) axial section.
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Copyright © 2007 by the American Roentgen Ray Society.