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Insights into Imaging
Fig. 1 | Insights into Imaging

Fig. 1

From: Response evaluation after neoadjuvant treatment for rectal cancer using modern MR imaging: a pictorial review

Fig. 1

Effect of preparatory micro-enema. MR images of the same patient performed without (a T2-weighted; b b1000 diffusion-weighted) and with (c T2-weighted; d b1000 diffusion-weighted) a preparatory micro-enema. The patient is a clinical complete responder, followed with MRI as part of a watch and wait-program. Note the severe distortions on DWI (b) caused by gas in the rectal lumen (* in a). On the MRI performed after a preparatory micro-enema (self-administered by the patient 15 min before the MRI), there is no gas present in the rectum and the rectal wall is well discernible, both on T2-weighted and diffusion-weighted MRI

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