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De Brabandere, et al.,
Brachytherapy
12, 580-588 (2013)
MRI-based seed reconstruction
was less accurate than CT, with a
mean interobserver variation in
seed positioning of 3 mm (1 SD).
This resulted in a non-negligible
mean interobserver variation in
D
90
of about 7% for T1 + T2.