US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules

The aim of the present study was to assess feasibility, safety and outcome of ultrasound (US) guided percutaneous radiofrequency (RF) ablation of large substernal benign thyroid nodules assisted by US-computed tomography (CT) fusion imaging and real-time virtual needle tracking (VT) system. Thirty p...

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Main Authors: Davide Orlandi, Umberto Viglino, Giorgia Dedone, Giacomo Leale, Pietro Caruso, Giovanni Mauri, Giovanni Turtulici
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:International Journal of Hyperthermia
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/02656736.2022.2091167
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author Davide Orlandi
Umberto Viglino
Giorgia Dedone
Giacomo Leale
Pietro Caruso
Giovanni Mauri
Giovanni Turtulici
author_facet Davide Orlandi
Umberto Viglino
Giorgia Dedone
Giacomo Leale
Pietro Caruso
Giovanni Mauri
Giovanni Turtulici
author_sort Davide Orlandi
collection DOAJ
description The aim of the present study was to assess feasibility, safety and outcome of ultrasound (US) guided percutaneous radiofrequency (RF) ablation of large substernal benign thyroid nodules assisted by US-computed tomography (CT) fusion imaging and real-time virtual needle tracking (VT) system. Thirty patients (18 females, mean age 56 y, range 32–76 y) with 35 benign nonfunctioning thyroid nodules (mean volume ± SD 26.8 ± 7.6 mL; range 20–38mL) were selected for CT-US fusion guided RF ablation. Nodules’ volume was evaluated before treatment and during 12-months follow-up. Complications’ rate was also evaluated. US-CT fusion imaging with VT system was feasible in all cases (feasibility 100%) and it was always possible to complete the procedure as planned (technical success 100%). Minor complications occurred in 2/30 cases (6.6%). No major complications occurred. 50% volume reduction (technique efficacy) was achieved in 93% cases, with a significant mean volume reduction at 12 months follow-up (68.7 ± 10.8%), (p < .001). The VT system could be useful in thyroid nodules ablation procedures assistance being able to track the RF electrode tip even when this is obscured by the bubbles produced by the ablative process. The combination of fusion imaging with VT assisted RF ablation represents a safe, non-surgical treatment option for patients with large substernal benign thyroid nodules.
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spelling doaj.art-6d92e0b450c34aeb9a6d7345fe8894602022-12-22T02:38:41ZengTaylor & Francis GroupInternational Journal of Hyperthermia0265-67361464-51572022-12-0139184785410.1080/02656736.2022.2091167US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodulesDavide Orlandi0Umberto Viglino1Giorgia Dedone2Giacomo Leale3Pietro Caruso4Giovanni Mauri5Giovanni Turtulici6Dipartimento di Radiologia e Ecografia Interventistica, Ospedale Evangelico Internazionale, Genova, ItalyScuola di Specializzazione in Radiodiagnostica, Università degli Studi di Genova, Genova, ItalyDipartimento di Radiologia e Ecografia Interventistica, Ospedale Evangelico Internazionale, Genova, ItalyDipartimento di Radiologia e Ecografia Interventistica, Ospedale Evangelico Internazionale, Genova, ItalyDipartimento di Radiologia e Ecografia Interventistica, Ospedale Evangelico Internazionale, Genova, ItalyDipartimento di Oncologia ed Emato-oncologia, Università degli studi di Milano, Milano, ItalyDipartimento di Radiologia e Ecografia Interventistica, Ospedale Evangelico Internazionale, Genova, ItalyThe aim of the present study was to assess feasibility, safety and outcome of ultrasound (US) guided percutaneous radiofrequency (RF) ablation of large substernal benign thyroid nodules assisted by US-computed tomography (CT) fusion imaging and real-time virtual needle tracking (VT) system. Thirty patients (18 females, mean age 56 y, range 32–76 y) with 35 benign nonfunctioning thyroid nodules (mean volume ± SD 26.8 ± 7.6 mL; range 20–38mL) were selected for CT-US fusion guided RF ablation. Nodules’ volume was evaluated before treatment and during 12-months follow-up. Complications’ rate was also evaluated. US-CT fusion imaging with VT system was feasible in all cases (feasibility 100%) and it was always possible to complete the procedure as planned (technical success 100%). Minor complications occurred in 2/30 cases (6.6%). No major complications occurred. 50% volume reduction (technique efficacy) was achieved in 93% cases, with a significant mean volume reduction at 12 months follow-up (68.7 ± 10.8%), (p < .001). The VT system could be useful in thyroid nodules ablation procedures assistance being able to track the RF electrode tip even when this is obscured by the bubbles produced by the ablative process. The combination of fusion imaging with VT assisted RF ablation represents a safe, non-surgical treatment option for patients with large substernal benign thyroid nodules.https://www.tandfonline.com/doi/10.1080/02656736.2022.2091167Substernal thyroid noduleradiofrequency ablationvirtual needle trackingfusion imaging
spellingShingle Davide Orlandi
Umberto Viglino
Giorgia Dedone
Giacomo Leale
Pietro Caruso
Giovanni Mauri
Giovanni Turtulici
US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
International Journal of Hyperthermia
Substernal thyroid nodule
radiofrequency ablation
virtual needle tracking
fusion imaging
title US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
title_full US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
title_fullStr US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
title_full_unstemmed US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
title_short US-CT fusion-guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
title_sort us ct fusion guided percutaneous radiofrequency ablation of large substernal benign thyroid nodules
topic Substernal thyroid nodule
radiofrequency ablation
virtual needle tracking
fusion imaging
url https://www.tandfonline.com/doi/10.1080/02656736.2022.2091167
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