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European Radiology Experimental
Fig. 2 | European Radiology Experimental

Fig. 2

From: Optimised passive marker device visibility and automatic marker detection for 3-T MRI-guided endovascular interventions: a pulsatile flow phantom study

Fig. 2

Segmentation of the artifact from a sagittal gradient echo image with 6.25 mg/mL iron(II,III)oxide markers (echo time 2.48 ms, slice thickness 5 mm, phase encoding direction: parallel). a Reference image of the 8-mm vessel without guidewire. b Marker image with inserted guidewire. c Result after subtraction of marker image from reference image. d Mask image with segmented markers used to calculate mean artifact width. e Outline of segmented markers overlaid on the marker image

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