Real-Time US-CT fusion imaging for guidance of thermal ablation in of renal tumors invisible or poorly visible with US: results in 97 cases. (1st January 2021)

• Record Type: Journal Article
• Authors: Mauri, Giovanni; Monfardini, Lorenzo; Della Vigna, Paolo; Montano, Florian; Bonomo, Guido; Buccimazza, Giorgio; Camisassi, Nicola; Rossi, Duccio; Maiettini, Daniele; Varano, Gianluca Maria; Solbiati, Luigi; Orsi, Franco
• Is Part Of: International journal of hyperthermia. Volume 38:Number 1(2021)
• Page Start: 771
• Page End: 776
• Publication Date: 2021-01-01
• Subjects: Renal tumor -- US-CT fusion -- radiofrequency ablation (RF) -- microwave ablation (MW); Thermotherapy -- Periodicals; 615.832
• DOI: 10.1080/02656736.2021.1923837
• Languages: English
• ISSNs: 0265-6736

Abstract

Abstract: Purpose: To assess the capability of ultrasound-computed tomography (US-CT) fusion imaging to guide a precise targeting of renal tumors invisible or poorly visible with US Materials and methods: From 2016 renal tumors poorly visible or inconspicuous/invisible at US were treated at our institution with the guidance of US/CT fusion in a room equipped with CT scanner. Feasibility of the procedure, accuracy of targeting, complications, and technique efficacy were evaluated. Results: Of 227 patients treated from 2016 to March 2020, 91 patients (65 males and 26 females, mean age 68.5 ± 10.1 years) with 97 renal lesions (mean maximum diameter 21.6 ± 9.4 mm) inconspicuous/invisible (29/97, 29.9%) or poorly visible (68/97, 70.1%) at US underwent treatment under US-CT fusion guidance. US-CT fusion imaging guidance was always technically feasible and enabled correct targeting in 97/97/(100%) of cases. Technical success was achieved in 93/97 lesions (95.9%). Three lesions were retreated during the same ablative session, while 1 was retreated in a subsequent session. Thus, primary efficacy was achieved in one session in 96/97 (98.9%) cases and secondary efficacy in 97/97 (100%) cases Conclusion: US-CT image fusion guidance allows for a correct tumor targeting of renal tumors poorly visible or inconspicuous/invisible with US alone, with a high rate of technical success and technique efficacy.