Clara Prud'homme1, Jean-Philippe Nueffer1, Michel Runge1, Jonathan Dubut1, Bruno Kastler1,2, Sébastien Aubry3,4. 1. Department of Musculoskeletal Imaging, University Hospital of Besancon, 25000, Besancon, France. 2. I4S Laboratory, INSERM EA4268, University of Franche-Comte, 25000, Besancon, France. 3. Department of Musculoskeletal Imaging, University Hospital of Besancon, 25000, Besancon, France. radio.aubry@free.fr. 4. Nanomedecine Laboratory, INSERM EA4662, University of Franche-Comte, 25000, Besancon, France. radio.aubry@free.fr.
Abstract
PURPOSE: The aims of this work were to assess the feasibility and efficacy of CT-guided microwave ablation (MWA) in the treatment of osteoid osteomas (OOs). MATERIALS AND METHODS: Thirteen consecutive patients (range 11-31 years old) presenting with OO were prospectively included and treated by CT-guided MWA. Power and duration of MWA were both recorded. The patient's pain was assessed using a numeric pain rating scale (NRS), and side effects were recorded during procedures, after 1 day, 7 days and 1 month. The nidus vascularization and the volume of necrosis induced by MWA were assessed using contrast-enhanced MRI. Success was defined as the complete relief of the patient's pain 1 month after the first procedure, associated with necrosis of the nidus on follow-up MRI. RESULTS: The success rate was up to 92.3% (12/13). At 1 day, 7 days and 1 month, the median NRSs were respectively 5 [interquartile range (IQR) 2-5], 0 (IQR 0-1) and 0 (IQR 0-0). Side effects observed were one partial and self-resolving lesion of a sensory branch of the radial nerve and two skin burns. The median power of the MWA used was 60 W (IQR 50-60) with a 1.5-min duration (IQR 1-2), leading to MWA-induced necrosis measuring on average 23 × 15 × 16 mm. CONCLUSION: CT-guided MWA of OO has a success rate that appears to be almost similar to that of laser or radiofrequency ablation, but care must be taken to prevent nerve or skin lesions.
PURPOSE: The aims of this work were to assess the feasibility and efficacy of CT-guided microwave ablation (MWA) in the treatment of osteoid osteomas (OOs). MATERIALS AND METHODS: Thirteen consecutive patients (range 11-31 years old) presenting with OO were prospectively included and treated by CT-guided MWA. Power and duration of MWA were both recorded. The patient's pain was assessed using a numeric pain rating scale (NRS), and side effects were recorded during procedures, after 1 day, 7 days and 1 month. The nidus vascularization and the volume of necrosis induced by MWA were assessed using contrast-enhanced MRI. Success was defined as the complete relief of the patient's pain 1 month after the first procedure, associated with necrosis of the nidus on follow-up MRI. RESULTS: The success rate was up to 92.3% (12/13). At 1 day, 7 days and 1 month, the median NRSs were respectively 5 [interquartile range (IQR) 2-5], 0 (IQR 0-1) and 0 (IQR 0-0). Side effects observed were one partial and self-resolving lesion of a sensory branch of the radial nerve and two skin burns. The median power of the MWA used was 60 W (IQR 50-60) with a 1.5-min duration (IQR 1-2), leading to MWA-induced necrosis measuring on average 23 × 15 × 16 mm. CONCLUSION: CT-guided MWA of OO has a success rate that appears to be almost similar to that of laser or radiofrequency ablation, but care must be taken to prevent nerve or skin lesions.
Authors: Anna J Moreland; Meghan G Lubner; Timothy J Ziemlewicz; Douglas R Kitchin; J Louis Hinshaw; Alexander D Johnson; Fred T Lee; Christopher L Brace Journal: Cardiovasc Intervent Radiol Date: 2014-11-14 Impact factor: 2.740
Authors: S Nahum Goldberg; Clement J Grassi; John F Cardella; J William Charboneau; Gerald D Dodd; Damian E Dupuy; Debra Gervais; Alice R Gillams; Robert A Kane; Fred T Lee; Tito Livraghi; John McGahan; David A Phillips; Hyunchul Rhim; Stuart G Silverman Journal: Radiology Date: 2005-04-21 Impact factor: 11.105
Authors: Richard A Kjar; Gerard J Powell; Stephen M Schilcht; Peter J Smith; John Slavin; Peter F M Choong Journal: Med J Aust Date: 2006-06-05 Impact factor: 7.738