Abstract #3692
Diffusion-weighted MRI using different b -value combinations for the evaluation of treatment results after volumetric MR-guided high-intensity focused ultrasound ablation of uterine fibroids
Marlijne Elisabeth Ikink 1 , Marianne J Voogt 1 , Maurice AAJ van den Bosch 1 , Robbert J Nijenhuis 1 , Bilgin Keserci 2 , Young-sun Kim 2 , Koen L Vincken 3 , and Lambertus W Bartels 3
1
Radiology, University Medical Center
Utrecht, Utrecht, Utrecht, Netherlands,
2
Radiology
and Center for Imaging Science, Samsung Medical Center,
Seoul, Korea,
3
Radiology
and Image Sciences Institute, University Medical Center
Utrecht, Utrecht, Utrecht, Netherlands
DWI and
ADC
-mapping
have been suggested for evaluation of treatment results
after MR-guided high-intensity focused ultrasound
(MR-HIFU) ablation of uterine fibroids. In well-perfused
tissues, the
ADC
is
known to reflect not only the diffusion of water, but
also information about the perfusion in capillaries. The
aim of this study was to investigate the optimal
combination of
b
-values
on the
ADC
.
It was found that the combination of low
b
-values
(
b
= 0
and 200 s/mm
2
) allows the best
differentiation between ablated fibroid tissue and
untreated tissue immediately after volumetric MR-HIFU
ablation of uterine fibroids.
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