P Pottecher1,2, E Sibileau3, S Aho4, B Hamze3, C Parlier3, J D Laredo3, V Bousson3. 1. Department of Osteoarticular Radiology, Hôpital Lariboisière, AP-HP, 2 rue Ambroise Paré, 75475, Paris Cedex 10, France. pierre.pottecher@gmail.com. 2. Department of Vascular, Oncologic and Interventional Radiology, Hôpital du Bocage, 14, rue Paul-Gaffarel, BP 77908, 21079, Dijon cedex, France. pierre.pottecher@gmail.com. 3. Department of Osteoarticular Radiology, Hôpital Lariboisière, AP-HP, 2 rue Ambroise Paré, 75475, Paris Cedex 10, France. 4. Hospital Hygiene and Epidemiology unit, Hôpital du Bocage, BP 77908, 21079, Dijon Cedex, France.
Abstract
OBJECTIVE: To correlate dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) features to clinical and computed tomography (CT) morphological features of osteoid osteoma (OO). MATERIALS AND METHODS: Our institutional review board approved this retrospective study, waiving the need for informed consent. We included the 102 patients treated with interstitial laser ablation for histologically documented OO at our institution in 2008-2013. DCE-MRI variables were the time-enhancement pattern and rising slope (Sloperise) and CT variables were the bone and segment involved (OObone and OOsegment, respectively), OO location relative to the native cortex (OOcortex), nidus surface area, vessel sign, and largest neighboring-vessel diameter (Dmaxvessel). Descriptive statistics and correlations linking DCE-MRI findings to clinical and CT characteristics were computed. RESULTS: DCE-MRI showed early arterial peak enhancement in 95 (93%) cases, with a mean Sloperise of 9.30 ± 8.10. CT visualized a vessel sign in 84 (82%) cases with a mean Dmaxvessel of 1.10 ± 0.60 mm. By univariate analysis, Sloperise correlated significantly with pain duration and Dmaxvessel (r = 0.30, P = 0.003; and r = 0.22, P = 0.03; respectively). Analysis of variance showed that Sloperise correlated significantly with OObone (P < 0.001), with a steeper slope for OOs located in short or flat bones. CONCLUSION: This study suggests more abundant vascularization of OOs with long-lasting pain and location on short or flat bones.
OBJECTIVE: To correlate dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) features to clinical and computed tomography (CT) morphological features of osteoid osteoma (OO). MATERIALS AND METHODS: Our institutional review board approved this retrospective study, waiving the need for informed consent. We included the 102 patients treated with interstitial laser ablation for histologically documented OO at our institution in 2008-2013. DCE-MRI variables were the time-enhancement pattern and rising slope (Sloperise) and CT variables were the bone and segment involved (OObone and OOsegment, respectively), OO location relative to the native cortex (OOcortex), nidus surface area, vessel sign, and largest neighboring-vessel diameter (Dmaxvessel). Descriptive statistics and correlations linking DCE-MRI findings to clinical and CT characteristics were computed. RESULTS:DCE-MRI showed early arterial peak enhancement in 95 (93%) cases, with a mean Sloperise of 9.30 ± 8.10. CT visualized a vessel sign in 84 (82%) cases with a mean Dmaxvessel of 1.10 ± 0.60 mm. By univariate analysis, Sloperise correlated significantly with pain duration and Dmaxvessel (r = 0.30, P = 0.003; and r = 0.22, P = 0.03; respectively). Analysis of variance showed that Sloperise correlated significantly with OObone (P < 0.001), with a steeper slope for OOs located in short or flat bones. CONCLUSION: This study suggests more abundant vascularization of OOs with long-lasting pain and location on short or flat bones.
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Authors: Florian T Gassert; Johannes Hammel; Felix C Hofmann; Jan Neumann; Claudio E von Schacky; Felix G Gassert; Daniela Pfeiffer; Franz Pfeiffer; Marcus R Makowski; Klaus Woertler; Alexandra S Gersing; Benedikt J Schwaiger Journal: Diagnostics (Basel) Date: 2021-05-26