2017 Imaging for Physicists Coursebook

MRI-guided interventions: needles

Spin echo images of needles (18G/1.3 mm) in a 1.5 T B0 field

0 degrees with respect to Bo field 40 degrees

Plastic

Titanium Stainless steel

Titanium Stainless steel

4 mm

2 mm

10 mm

5 mm 14 mm

Distortions depend on material, shape and orientation