Example - MR knee

ROI centred on tear of meniscus within posterior horn.

Original MR image
+ Region Of Interest (ROI)

5x ROI
before enhancement

5x ROI
before enhancement
with edges marked

5x ROI
after enhancement
with edges marked

5x ROI
after enhancement
with edge-dots removed

5x ROI
after enhancement
with tear outlined

Outline statistics:

Length, l1 = 14.60 ± 0.02 mm
Minimum width, w1 = 0.80 ± 0.02 mm
Maximum width, w2 = 1.90 ± 0.02 mm
Area, A = 22.70 ± 1.10 mm²
Volume = Area * Slice-thickness
= 79.45 ± 3.84 mm³

Note - By the correction of MR Frequency-Spread Effect and the elimination of Pixelization Effect, the barely visible tear was enhanced to become clearly visible for diagnosis and accurate measurements.


Before and after enhancement, side-by-side:

'before' 'after'