Alessandro Stecco1, Roberto Arioli2, Francesco Buemi2, Giuseppe Parziale2, Alessandra Trisoglio2, Eleonora Soligo2, Paolo Cerini2, Massimiliano Leigheb3, Marco Brambilla4, Gerardo Di Nardo2, Giuseppe Guzzardi2, Alessandro Carriero2. 1. Radiology Institute, Services Diagnosis and Therapies Department, Maggiore della Carità Hospital, University of Eastern Piedmont - UPO University, Corso Mazzini 18, 28100, Novara, Italy. a.stecco@libero.it. 2. Radiology Institute, Services Diagnosis and Therapies Department, Maggiore della Carità Hospital, University of Eastern Piedmont - UPO University, Corso Mazzini 18, 28100, Novara, Italy. 3. Orthopaedics and Traumatology Department, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy. 4. Medical Physics Department, Maggiore della Carità Hospital, University of Eastern Piedmont, Novara, Italy.
Abstract
PURPOSE: To quantitatively compare the artefact reduction between standard and metallic artefact reduction (MAR) fast spin echo (FSE) T2 sequences in a low-field magnetic resonance imaging (MRI) scanner (0.3 T) in patients with titanium volar wrist plating. MATERIALS AND METHODS: Sixteen patients with fractures of the distal radius, treated with titanium volar wrist plating and screws, were examined using a dedicated 0.3 T MRI scanner. Coronal standard FSE T2, FSE T2 high bandwidth (HiBW) and FSE T2 view angle tilting (VAT) sequences were performed. Metallic artefact volume, consisting of both "black" and "bright" artefacts, was calculated for each sequence. Quantitative differences were compared using repeated measures ANOVA test (P < 0.05). RESULTS: FSE T2 HiBW and FSE T2 VAT showed a significant reduction in artefact volume compared to the standard sequence. Differences between the artefact volume of the standard FSE T2, HiBW and VAT sequences were statistically significant for both the "black" and "bright" artefacts (P < 0.0001). Differences between the 1.5 HiBW and VAT sequences were statistically significant (black P < 0.0001, bright P < 0.0302). CONCLUSIONS: MAR sequences significantly reduced metallic artefacts in vivo using a 0.3 T MRI scanner.
PURPOSE: To quantitatively compare the artefact reduction between standard and metallic artefact reduction (MAR) fast spin echo (FSE) T2 sequences in a low-field magnetic resonance imaging (MRI) scanner (0.3 T) in patients with titanium volar wrist plating. MATERIALS AND METHODS: Sixteen patients with fractures of the distal radius, treated with titanium volar wrist plating and screws, were examined using a dedicated 0.3 T MRI scanner. Coronal standard FSE T2, FSE T2 high bandwidth (HiBW) and FSE T2 view angle tilting (VAT) sequences were performed. Metallic artefact volume, consisting of both "black" and "bright" artefacts, was calculated for each sequence. Quantitative differences were compared using repeated measures ANOVA test (P < 0.05). RESULTS: FSE T2 HiBW and FSE T2 VAT showed a significant reduction in artefact volume compared to the standard sequence. Differences between the artefact volume of the standard FSE T2, HiBW and VAT sequences were statistically significant for both the "black" and "bright" artefacts (P < 0.0001). Differences between the 1.5 HiBW and VAT sequences were statistically significant (black P < 0.0001, bright P < 0.0302). CONCLUSIONS: MAR sequences significantly reduced metallic artefacts in vivo using a 0.3 T MRI scanner.
Authors: Iman Khodarahmi; Inge M Brinkmann; Dana J Lin; Mary Bruno; Patricia M Johnson; Florian Knoll; Mahesh B Keerthivasan; Hersh Chandarana; Jan Fritz Journal: Invest Radiol Date: 2022-03-04 Impact factor: 10.065
Authors: Flavia Cobianchi Bellisari; Luigi De Marino; Francesco Arrigoni; Silvia Mariani; Federico Bruno; Pierpaolo Palumbo; Camilla De Cataldo; Ferruccio Sgalambro; Nadia Catallo; Luigi Zugaro; Ernesto Di Cesare; Alessandra Splendiani; Carlo Masciocchi; Andrea Giovagnoni; Antonio Barile Journal: Radiol Med Date: 2021-05-18 Impact factor: 3.469