PURPOSE: The aim of the present study was to investigate the technical feasibility of flat-panel cone-beam CT (CBCT)-guided radiofrequency ablation (RFA) of very small (<1.5 cm) liver tumors. MATERIALS AND METHODS: Patients included were candidates for hepatic percutaneous RFA as they had single biopsy-proven hepatic tumors sized ≤ 1.5 cm and poorly defined on ultrasonography. Following apnea induction, unenhanced CBCT scans were acquired and used to deploy the RF electrode with the aid of a virtual navigation system. If the tumor was not clearly identified on the unenhanced CBCT scan, a right retrograde arterial femoral access was established to carry out hepatic angiography and localize the tumor. Patients' lesions and procedural variables were recorded and analyzed. RESULTS: Three patients (2 male and 1 female), aged 68, 76, and 87 years were included; 3 lesions (2 hepato-cellular carcinoma and 1 metastasis from colorectal cancer) were treated. One patient required hepatic angiography. Cycles of apnea used to acquire CBCT images and to deploy the electrode lasted <120 s. Mean fluoroscopic time needed to deploy the electrode was 36.6 ± 5.7 min. Mean overall procedural time was 66.0 ± 22.9 min. No peri- or post-procedural complications were noted. No cases of incomplete ablation were noted at 1-month follow-up. CONCLUSION: Percutaneous CBCT-guided liver RFA with or without arterial hepatic angiography is technically feasible.
PURPOSE: The aim of the present study was to investigate the technical feasibility of flat-panel cone-beam CT (CBCT)-guided radiofrequency ablation (RFA) of very small (<1.5 cm) liver tumors. MATERIALS AND METHODS:Patients included were candidates for hepatic percutaneous RFA as they had single biopsy-proven hepatic tumors sized ≤ 1.5 cm and poorly defined on ultrasonography. Following apnea induction, unenhanced CBCT scans were acquired and used to deploy the RF electrode with the aid of a virtual navigation system. If the tumor was not clearly identified on the unenhanced CBCT scan, a right retrograde arterial femoral access was established to carry out hepatic angiography and localize the tumor. Patients' lesions and procedural variables were recorded and analyzed. RESULTS: Three patients (2 male and 1 female), aged 68, 76, and 87 years were included; 3 lesions (2 hepato-cellular carcinoma and 1 metastasis from colorectal cancer) were treated. One patient required hepatic angiography. Cycles of apnea used to acquire CBCT images and to deploy the electrode lasted <120 s. Mean fluoroscopic time needed to deploy the electrode was 36.6 ± 5.7 min. Mean overall procedural time was 66.0 ± 22.9 min. No peri- or post-procedural complications were noted. No cases of incomplete ablation were noted at 1-month follow-up. CONCLUSION: Percutaneous CBCT-guided liver RFA with or without arterial hepatic angiography is technically feasible.
Authors: Tae Ho Kim; Chang Min Park; Sang Min Lee; H Page McAdams; Young Tae Kim; Jin Mo Goo Journal: Diagn Interv Radiol Date: 2016 May-Jun Impact factor: 2.630
Authors: P Saccomandi; E Schena; C Massaroni; Y Fong; R F Grasso; F Giurazza; B Beomonte Zobel; X Buy; J Palussiere; R L Cazzato Journal: Eur J Surg Oncol Date: 2015-09-25 Impact factor: 4.424
Authors: C Matthew Hawkins; Alexander J Towbin; Derek J Roebuck; Eric J Monroe; Anne E Gill; Avnesh S Thakor; Richard B Towbin; Anne Marie Cahill; Matthew P Lungren Journal: Pediatr Radiol Date: 2018-02-02