MRI
of the prostate after HIFU session (the
whole prostate volume is treated)
Tranversal
plane
Longitudinal
plane
MRI examinations performed early after the HIFU
treatment of prostate cancer cannot give a qualitative assessment
of the necrosis.
But it allows a precise evaluation of the treated volume as demonstrated
in a clinical trial. Indeed, after gadolinium injection, the treated
area appeared as an hypo-intense area and a surrounding 6-8 mm
ring of contrast enhancement. Biopsies were taken in the ring,
and also
evidenced a complete necrosis in this ring.