Analysis of Changes in Attenuation of Proven Renal Cysts on Different Scanning Phases of Triphasic MDCT
Eugene P. Chung1,
Brian R. Herts1,2,
Grant Linnell1,
Andrew C. Novick2,
Nancy Obuchowski1,3,
Deirdre M. Coll1,4 and
Mark E. Baker1
1 Department of Radiology HB6, The Cleveland Clinic Foundation, 9500
Euclid Ave., Cleveland, OH 44195.
2 The Glickman Urological Institute, The Cleveland Clinic Foundation, Cleveland,
OH 44195.
3 Department of Biostatistics, The Cleveland Clinic Foundation, Cleveland, OH
44195.
4 Present address: Department of Radiology, Weill Hospital, Cornell University
Medical Center, New York, NY.

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Fig. 1. Attenuation change from unenhanced to parenchymal phase. Bar
graph shows percentage of all cysts with respective attenuation changes
between these phases. Ninety-five percent (vertical line) of all
attenuation changes were less than 7 H.
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Fig. 2. Attenuation change from unenhanced to corticomedullary phase.
Bar graph shows percentage of all cysts with respective attenuation changes
between these phases. Ninety-five percent (vertical line) of all
attenuation changes were less than 5 H.
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Fig. 3. Attenuation change from corticomedullary to parenchymal
phase. Bar graph shows percentage of all cysts with respective attenuation
changes between these phases. Ninety-five percent (vertical line) of
all attenuation changes were less than 8 H.
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Copyright © 2004 by the American Roentgen Ray Society.