Abstract #1553
Computed diffusion-weighted imaging for differentiating decidualized endometrioma from ovarian cancer
Mayumi Takeuchi 1 , Kenji Matsuzaki 1 , and Masafumi Harada 1
1
Department of Radiology, University of
Tokushima, Tokushima, Tokushima, Japan
We evaluated DWI (b=800) with mean ADC values, and
signal changes on computed DWI (cDWI) of 20 mural
nodules (MNs) in 9 decidualized endometriomas (DEM)
during pregnancy and 20 ovarian cancers (OC)
retrospectively. MNs in DEM exhibited high to slight
high intensity with significantly higher ADC (2.01 +/-
0.26), whereas all OC contained high intensity solid
components with lower ADC (1.08 +/- 0.20) (p<0.001). The
signal intensity of MNs in DEM decreased on cDWI with
higher b values and all MNs showed low intensity on cDWI
(b=1500) whereas all 20 OC still contained high
intensity solid components on cDWI (b=1500).
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