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Fig. 1 —Comparison of signal void artifact surrounding tissue marker clips
implanted in gelatin phantom on 3D spoiled gradient-echo T1-weighted MRI.
Mammographic appearance of each clip within phantom accompanies each MR image
(inset). Top row left to right: control, clip A, and clip C, Bottom
row left to right: clip B, clip D, and clip E. Diameter of imaged phantom is
13 cm. Note—Clip A = MammoMark Biopsy Site Marker, Artemis Medical; clip
B = Gel Mark UltraCor, SenoRx; clip C = MicorMark II, Ethicon Endo-Surgery;
clip D = UltraClip Tissue Marker, INRAD; clip E = steel filament.
