Vito Chianca1, Domenico Albano2,3, Renato Cuocolo4, Carmelo Messina2,5, Salvatore Gitto5, Arturo Brunetti4, Luca Maria Sconfienza2,5. 1. IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milan, Italy. vitochianca@gmail.com. 2. IRCCS Istituto Ortopedico Galeazzi, Via Riccardo Galeazzi 4, 20161, Milan, Italy. 3. DSezione di Scienze Radiologiche, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università degli Studi di Palermo, 90127, Palermo, Italy. 4. Dipartimento di Scienze Biomediche Avanzate, Università di Napoli "Federico II", 80131, Napoli, Italy. 5. Dipartimento di Scienze Biomediche per la salute, Università degli Studi di Milano, 20122, Milano, Italy.
Abstract
PURPOSE: To assess the feasibility and reproducibility of T2 relaxation time measurements of the trapeziometacarpal joint (TM) and triangular fibrocartilage complex (TFCC) on healthy subjects at 1.5 T MR. MATERIALS AND METHODS: Thirty-four healthy volunteers underwent an axial oblique multislice multiecho spin-echo sequence of the wrist at 1.5 T, with 10 of them having performed another MR scan on a different 1.5 T scanner. Regions of interest were independently manually drawn by two musculoskeletal radiologists to include the cartilaginous part of the TM and TFCC. Intra-observer, inter-observer and inter-scanner reproducibility of T2 relaxation time measurements was tested using the Bland-Altman method. RESULTS: The mean T2 values obtained by the two radiologists were 29.9 ± 6.5 ms and 30.0 ± 6.1 ms in the TM and 24.5 ± 2.3 ms and 24.6 ± 2.8 ms in the TFCC, respectively. The mean values of the second series of T2 measurements obtained by the senior radiologist were 29.9 ± 6.5 ms and 30.0 ± 6.3 ms in the TM and 24.3 ± 2.9 ms in the TFCC. Inter-observer reproducibility in the TM and in the TFCC was 76% and 82%, respectively. Intra-observer reproducibility in the TM and TFCC was 71% and 76%, respectively. Inter-scanner reproducibility of T2 measurements was 36% in the TM and 85% in the TFCC, respectively. CONCLUSION: The assessment of T2 relaxation time measurements of the cartilage of the TM and the TFCC seems to be feasible and reproducible, although the inter-scanner reproducibility of T2 measurements of the TM is suboptimal. Further studies including patients are warranted to prove the utility of this tool.
PURPOSE: To assess the feasibility and reproducibility of T2 relaxation time measurements of the trapeziometacarpal joint (TM) and triangular fibrocartilage complex (TFCC) on healthy subjects at 1.5 T MR. MATERIALS AND METHODS: Thirty-four healthy volunteers underwent an axial oblique multislice multiecho spin-echo sequence of the wrist at 1.5 T, with 10 of them having performed another MR scan on a different 1.5 T scanner. Regions of interest were independently manually drawn by two musculoskeletal radiologists to include the cartilaginous part of the TM and TFCC. Intra-observer, inter-observer and inter-scanner reproducibility of T2 relaxation time measurements was tested using the Bland-Altman method. RESULTS: The mean T2 values obtained by the two radiologists were 29.9 ± 6.5 ms and 30.0 ± 6.1 ms in the TM and 24.5 ± 2.3 ms and 24.6 ± 2.8 ms in the TFCC, respectively. The mean values of the second series of T2 measurements obtained by the senior radiologist were 29.9 ± 6.5 ms and 30.0 ± 6.3 ms in the TM and 24.3 ± 2.9 ms in the TFCC. Inter-observer reproducibility in the TM and in the TFCC was 76% and 82%, respectively. Intra-observer reproducibility in the TM and TFCC was 71% and 76%, respectively. Inter-scanner reproducibility of T2 measurements was 36% in the TM and 85% in the TFCC, respectively. CONCLUSION: The assessment of T2 relaxation time measurements of the cartilage of the TM and the TFCC seems to be feasible and reproducible, although the inter-scanner reproducibility of T2 measurements of the TM is suboptimal. Further studies including patients are warranted to prove the utility of this tool.
Authors: Matthew R Skalski; Eric A White; Dakshesh B Patel; Aaron J Schein; Hector RiveraMelo; George R Matcuk Journal: Curr Probl Diagn Radiol Date: 2015-05-28
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
Authors: Michele Ulivi; Valentina Meroni; Marco Viganò; Alessandra Colombini; Michele D M Lombardo; Nicolò Rossi; Luca Orlandini; Carmelo Messina; Luca M Sconfienza; Giuseppe M Peretti; Laura Mangiavini; Laura de Girolamo Journal: Knee Surg Sports Traumatol Arthrosc Date: 2022-08-30 Impact factor: 4.114