TY - JOUR
T1 - Measurement of the apparent diffusion coefficient in intraductal mucin-producing tumor of the pancreas by diffusion-weighted echo-planar MR imaging
AU - Irie, H.
AU - Honda, H.
AU - Kuroiwa, T.
AU - Yoshimitsu, K.
AU - Aibe, H.
AU - Shinozaki, K.
AU - Masuda, K.
PY - 2002/1
Y1 - 2002/1
N2 - Background: We investigated whether diffusion-weighted echo-planar magnetic resonance (MR) imaging can help differentiate intraductal mucin-producing tumors of the pancreas from other cystic lesions. Methods: Diffusion-weighted echo-planar MR imaging was performed in patients with mucin-producing tumors (n = 19), pseudocysts (n = 9), chronic pancreatitis with diffuse main pancreatic dilatation (n = 5), and serous cystadenomas (n = 2). Images were obtained with diffusion sensitizing gradients of 30, 300, and 900 s/mm2. The apparent diffusion coefficient (ADC) was calculated. Results: The mean (± standard deviation) ADCs of mucin-producing tumors (2.8 × 10-3 mm2/s ± 1.0 × 10-3), pseudocysts (2.9 × 10-3 mm2/s ± 1.2 × 10-3), dilated main pancreatic duct in chronic pancreatitis (3.3 × 10-3 mm2/s ± 1.2 × 10-3), serous cystadenomas (2.9 × 10-3 and 2.6 × 10-3 mm2/s), and cerebrospinal fluid (3.5 × 10-3 mm2/s ± 1.1 × 10-3) were not statistically different. Conclusion: It is difficult to differentiate between mucin-producing tumors and other cystic lesions by ADC measurements when using diffusion-weighted echo-planar MR imaging.
AB - Background: We investigated whether diffusion-weighted echo-planar magnetic resonance (MR) imaging can help differentiate intraductal mucin-producing tumors of the pancreas from other cystic lesions. Methods: Diffusion-weighted echo-planar MR imaging was performed in patients with mucin-producing tumors (n = 19), pseudocysts (n = 9), chronic pancreatitis with diffuse main pancreatic dilatation (n = 5), and serous cystadenomas (n = 2). Images were obtained with diffusion sensitizing gradients of 30, 300, and 900 s/mm2. The apparent diffusion coefficient (ADC) was calculated. Results: The mean (± standard deviation) ADCs of mucin-producing tumors (2.8 × 10-3 mm2/s ± 1.0 × 10-3), pseudocysts (2.9 × 10-3 mm2/s ± 1.2 × 10-3), dilated main pancreatic duct in chronic pancreatitis (3.3 × 10-3 mm2/s ± 1.2 × 10-3), serous cystadenomas (2.9 × 10-3 and 2.6 × 10-3 mm2/s), and cerebrospinal fluid (3.5 × 10-3 mm2/s ± 1.1 × 10-3) were not statistically different. Conclusion: It is difficult to differentiate between mucin-producing tumors and other cystic lesions by ADC measurements when using diffusion-weighted echo-planar MR imaging.
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U2 - 10.1007/s00261-001-0045-4
DO - 10.1007/s00261-001-0045-4
M3 - Article
C2 - 11740615
AN - SCOPUS:0036006667
SN - 2366-004X
VL - 27
SP - 82
EP - 87
JO - Abdominal Radiology
JF - Abdominal Radiology
IS - 1
ER -