RSNA 2011: Diffusion-weighted imaging allows differentiation of endometriosis from cysts
Published
01 November 2011
| Article by Excerpta Medica
| Tags:
mr-diffusion-weighted-imaging,
endometrial-cancer
RSNA 2011: Diffusion-weighted imaging allows differentiation of endometriosis from cysts
On magnetic resonance imaging (MRI), endometriosis can be difficult to distinguish from haemorrhagic cysts because they can both show hyperintensity in T1 weighted images and hypointensity in T2 weighted images. A study evaluating diffusion-weighted imaging (DWI) suggests that this technique is useful for distinguishing between these two types of lesions. This is potentially important because an effective differential diagnosis may reduce the risk of unnecessary surgery. Although a single-centre study in which various DWI cut-off values for distinguishing haemorrhagic cysts from endometriosis showed a range of sensitivity, an optimal cut-off value for apparent diffusion coefficient (ADC) was identified. Although additional studies by investigators at other institutions will be useful for validating the cut off value proposed by this group of investigators, they suggested these results may already have clinical application.
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