Titanium vs carbon coated ceramic breast tissue marker clips: 3T MR susceptibility artifact and local signal disturbance.

Rationale And Objectives: Spectroscopy signal of a breast lesion may be disrupted by the presence of metal from a biopsy marking clip. This study compares the size of magnetic resonance (MR) susceptibility artifacts and degree of local spectroscopy signal disturbance created by conventional titanium tissue marker clips to that of a novel carbon coated ceramic breast tissue marker clip.

Materials And Methods: Five breast tissue marker clips were embedded in a gelatin breast phantom.

Percutaneous CT-guided radiofrequency ablation of renal neoplasms: factors influencing success.

Objective: The objective of our study was to evaluate the success rate for radiofrequency ablation of renal tumors and to determine the risk of serious complications.

Conclusion: No serious complications occurred after 27 CT-guided radiofrequency ablation sessions in 22 patients. In total, no residual tumor was detected on follow-up contrast-enhanced CT or MRI 1-35 months (mean, 7 months) after final tumor ablation in 20 (91%) of 22 patients.