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Abstract No. 130: MRI-guided cryoabaltion of 110 patients with solid renal tumors
JVIR 䡲 Scientific Sessions
Monday 䡲 S57
a single needle pass during renal mass FNB is usually sufficient, on-site cytopathologic interpretation of FNB at the time of ablation may not be necessary, and a benign diagnosis is obtained in a substantial number of patients. Consequently, the current approach to the management of small renal masses should be modified, with consideration given to performing biopsy at a separate setting prior to ablation, without the assistance of an on-site pathologist.
3:18 PM
Abstract No. 130
MRI-guided cryoabaltion of 110 patients with solid renal tumors B. Dave1, J.L. Gatlin1, C. Pound2, T. McCowan1; 1 Radiology, University of Mississippi Medical Center, Jackson, MS; 2Urology, University of Mississippi Medical Center, Jackson, MS
MONDAY: Scientific Sessions
Purpose: We describe our mid-term experience with 110 patients, who had solid renal tumors, underwent MRI-guided cryoablation at our institution.
Materials and Methods: Between 1999 and 2008, 110 patients underwent cryoablation under MRI guidance at our instition. Maximum diameter of the renal tumor was 6.8 cm with range between 2.3– 8.1 cm. 116 tumors in 110 patients were treated, out of which 86 tumors were treated with one treatment session, and 30 tumors were treated with more than one treatment session. Technical success was defined as extension of the visible ice ball 5 mm beyond the tumor margin. Local tumor progression was defined as any tumor with intralesional enhancement or a serial increase in tumor size when compared with that on images obtained immediately after ablation. Tumor characteristics, complications, and follow-up were evaluated. Results: 7 major complications and 9 minor complications were encountered. 112 (96.5%) of 116 cryoablation procedures were technically successful. 97 patients underwent follow-up (mean, 16 months; range, 0.4 – 67 months); no local tumor recurrence was found. Conclusion: MRI-guided cryoablation is as effective as other noninvasive needle ablative techniques such as radiofrequency ablation. However, long-term datas are needed to prove it further.
Monday 䡲 S57
a single needle pass during renal mass FNB is usually sufficient, on-site cytopathologic interpretation of FNB at the time of ablation may not be necessary, and a benign diagnosis is obtained in a substantial number of patients. Consequently, the current approach to the management of small renal masses should be modified, with consideration given to performing biopsy at a separate setting prior to ablation, without the assistance of an on-site pathologist.
3:18 PM
Abstract No. 130
MRI-guided cryoabaltion of 110 patients with solid renal tumors B. Dave1, J.L. Gatlin1, C. Pound2, T. McCowan1; 1 Radiology, University of Mississippi Medical Center, Jackson, MS; 2Urology, University of Mississippi Medical Center, Jackson, MS
MONDAY: Scientific Sessions
Purpose: We describe our mid-term experience with 110 patients, who had solid renal tumors, underwent MRI-guided cryoablation at our institution.
Materials and Methods: Between 1999 and 2008, 110 patients underwent cryoablation under MRI guidance at our instition. Maximum diameter of the renal tumor was 6.8 cm with range between 2.3– 8.1 cm. 116 tumors in 110 patients were treated, out of which 86 tumors were treated with one treatment session, and 30 tumors were treated with more than one treatment session. Technical success was defined as extension of the visible ice ball 5 mm beyond the tumor margin. Local tumor progression was defined as any tumor with intralesional enhancement or a serial increase in tumor size when compared with that on images obtained immediately after ablation. Tumor characteristics, complications, and follow-up were evaluated. Results: 7 major complications and 9 minor complications were encountered. 112 (96.5%) of 116 cryoablation procedures were technically successful. 97 patients underwent follow-up (mean, 16 months; range, 0.4 – 67 months); no local tumor recurrence was found. Conclusion: MRI-guided cryoablation is as effective as other noninvasive needle ablative techniques such as radiofrequency ablation. However, long-term datas are needed to prove it further.