Dynamic Sonography of Pancreatic Tumors
Comparison with Dynamic CT
Osamu Oshikawa1,
Sachiko Tanaka1,
Tatsuya Ioka1,
Akihiko Nakaizumi1,
Yoshihiro Hamada1 and
Takashi Mitani2
1 Division of Digestive Organs, Department of Cancer Survey, Osaka Medical
Center for Cancer and Cardiovascular Diseases, 1-3-3, Nakamichi, Higashinari,
Osaka, 537-8511, Japan.
2 Department of Diagnostic Radiology, Osaka Medical Center for Cancer and
Cardiovascular Diseases, Osaka, 537-8511, Japan.

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Fig. 1. Graph shows contrast index of pancreatic tumors with dynamic
sonography. Tumors are listed by type of disease, number of tumors, and
contrast index (mean ± SD). IPM = inflammatory pancreatic mass, ICT =
islet cell tumor, SCA = serous cystadenoma, SCT = solid and cystic tumor.
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Fig. 2A. 66-year-old man with pancreatic ductal adenocarcinoma. Graph
shows timeintensity curve of pancreatic parenchyma (a) and tumor area
(b). At 42 sec after contrast agent injection, intensity had maximum
enhancement in both tumor and parenchyma.
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Fig. 2B. 66-year-old man with pancreatic ductal adenocarcinoma.
Sonogram obtained before injection of Levovist (Schering, Berlin, Germany)
shows hypoechoic mass lesion (arrows) in head of pancreas.
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Fig. 2C. 66-year-old man with pancreatic ductal adenocarcinoma.
Dynamic sonogram obtained 42 sec after contrast agent injection shows
intensity of parenchymal area is slightly increased but intensity of tumor
(arrows) is not increased. Contours of tumor became clear.
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Fig. 2D. 66-year-old man with pancreatic ductal adenocarcinoma.
Dynamic CT scan reveals hypodense mass (asterisk) at head of
pancreas.
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Fig. 3A. 74-year-old woman with nonfunctioning islet cell tumor. Graph
shows timeintensity curve of pancreatic parenchyma (a) and tumor area
(b). Intensity had maximum enhancement in both tumor and parenchyma 37 sec
after contrast agent injection.
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Fig. 3B. 74-year-old woman with nonfunctioning islet cell tumor.
Sonogram obtained before injection of Levovist (Schering, Berlin, Germany)
shows hypoechoic mass lesion (arrows) in uncinate portion of
pancreas.
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Fig. 3C. 74-year-old woman with nonfunctioning islet cell tumor.
Dynamic sonogram obtained 37 sec after contrast agent injection shows
intensity of parenchymal area is slightly increased and intensity of tumor
(arrows) is strongly increased.
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Fig. 3D. 74-year-old woman with nonfunctioning islet cell tumor.
Dynamic CT scan reveals hyperdense mass (asterisk) at uncinate
portion of pancreas.
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Copyright © 2002 by the American Roentgen Ray Society.