Riccardo Sartoris1, Davide Orlandi2, Angelo Corazza3,4, Luca Maria Sconfienza3,5, Alice Arcidiacono1, Silvia Perugin Bernardi1, Simone Schiaffino1, Giovanni Turtulici2, Pietro Caruso2, Enzo Silvestri2. 1. Scuola di Specializzazione in Radiodiagnostica, Università degli studi di Genova, Genoa, Italy. 2. S.C. Diagnostica per Immagini, Radiologia, Ospedale Evangelico Internazionale, Corso Solferino 2A, 16100 Genoa, Italy. 3. Unità Operativa di Radiologia Diagnostica ed Interventistica, IRCCS Istituto Ortopedico Galeazzi, Milan, Italy. 4. Scuola di dottorato in Neuroscienze, Università degli Studi di Genova, Genoa, Italy. 5. Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milano, Italy.
Abstract
OBJECTIVES: Traditionally, facet joint injections (FJI) are performed under fluoroscopic or computed tomography (CT) guidance, mainly due to the deep anatomical location and the presence of bony landmarks. Fusion imaging technology, which couples the ultrasound scan with the corresponding CT or magnetic resonance (MR) image obtained from the diagnostic examination and reformatted in real time according to the ultrasound scanning plane, allows to combine the panoramic view and the elevated anatomical detail of MR or CT with the ease of use of ultrasound without patient exposure to ionizing radiation. METHODS: Thirty eight patients (24 females; mean age ± SD: 64 ± 9 years) received MR fusion-assisted ultrasound-guided FJI of 1 ml of a mixture of local anaesthetic and corticosteroid using a ultrasound machine (Logiq E9, GE Healthcare) equipped with a GPS-enhanced fusion imaging technology which couples real-time B-mode images with those of the previous recent diagnostic MR examination. Low-dose CT needle positioning confirmation was performed in the first 28 patients. Patients' pain was recorded using a visual analogue scale (VAS), at baseline and at 2, 4 and 8 weeks. RESULTS: All fusion imaging-guided injections were performed successfully. Out of 112, 96 FJI had optimal intra-articular needle positioning (accuracy: 85.7%). Patients VAS significantly decreases after the procedure with no differences among who received CT needle positioning control and who did not receive it. No major complications were observed. CONCLUSIONS: Ultrasound needle guidance with MR fusion assistance allows for safe and effective injection of degenerative facet joint disease.
OBJECTIVES: Traditionally, facet joint injections (FJI) are performed under fluoroscopic or computed tomography (CT) guidance, mainly due to the deep anatomical location and the presence of bony landmarks. Fusion imaging technology, which couples the ultrasound scan with the corresponding CT or magnetic resonance (MR) image obtained from the diagnostic examination and reformatted in real time according to the ultrasound scanning plane, allows to combine the panoramic view and the elevated anatomical detail of MR or CT with the ease of use of ultrasound without patient exposure to ionizing radiation. METHODS: Thirty eight patients (24 females; mean age ± SD: 64 ± 9 years) received MR fusion-assisted ultrasound-guided FJI of 1 ml of a mixture of local anaesthetic and corticosteroid using a ultrasound machine (Logiq E9, GE Healthcare) equipped with a GPS-enhanced fusion imaging technology which couples real-time B-mode images with those of the previous recent diagnostic MR examination. Low-dose CT needle positioning confirmation was performed in the first 28 patients. Patients' pain was recorded using a visual analogue scale (VAS), at baseline and at 2, 4 and 8 weeks. RESULTS: All fusion imaging-guided injections were performed successfully. Out of 112, 96 FJI had optimal intra-articular needle positioning (accuracy: 85.7%). Patients VAS significantly decreases after the procedure with no differences among who received CT needle positioning control and who did not receive it. No major complications were observed. CONCLUSIONS: Ultrasound needle guidance with MR fusion assistance allows for safe and effective injection of degenerative facet joint disease.
Entities:
Keywords:
Facet joint; Fusion imaging; Injection; Magnetic resonance; Ultrasound
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