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Effect of Radiofrequency Ablation of Renal Tumors on Renal Function in Patients with a Solitary Kidney

Chockeo Syvanthong1, Geoffrey E. Wile and Ronald J. Zagoria

1 All authors: Department of Radiology, Wake Forest University Baptist Medical Center, Medical Center Blvd., Winston-Salem, NC 27157.


Figure 1
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Fig. 1A 61-year-old woman with solitary left kidney. Axial unenhanced CT image shows placement of radiofrequency ablation probe within left renal mass.

 

Figure 2
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Fig. 1B 61-year-old woman with solitary left kidney. Axial T2-weighted MR images without (B) and with (C) fat saturation obtained 2 months after tumor ablation show typical appearance of a treated tumor with low signal within ablation zone. Signal of ablated tumor approximates signal of surrounding fat on fat-saturated image. Contrast-enhanced images (not shown) revealed no evidence of enhancement [2].

 

Figure 3
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Fig. 1C 61-year-old woman with solitary left kidney. Axial T2-weighted MR images without (B) and with (C) fat saturation obtained 2 months after tumor ablation show typical appearance of a treated tumor with low signal within ablation zone. Signal of ablated tumor approximates signal of surrounding fat on fat-saturated image. Contrast-enhanced images (not shown) revealed no evidence of enhancement [2].

 

Figure 4
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Fig. 2 Creatinine clearance after radiofrequency ablation. Graph shows long-term follow-up results for 12 patients. Because of variable follow-up periods for this group, data analysis was performed on findings at 1-month follow-up visit.

 

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