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Lundin B, Bakeer N, Dunn AL, Gibikote S, Keshava SN, Ljung RCR, Papakonstantinou O, Pergantou H, Strike K, Drygalski AV, Zhang N, Babyn P, Dover S, Doria AS. International Prophylaxis Study Group (IPSG) haemophilia joint MRI scale version 2.0. Haemophilia 2024; 30:862-864. [PMID: 38634801 DOI: 10.1111/hae.15010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 03/04/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024]
Affiliation(s)
- Björn Lundin
- Department of Clinical Sciences Lund (IKVL), Radiology, Department of Medical Imaging and Physiology, Lund University, Skåne University Hospital, Lund/Malmö, Sweden
| | - Nihal Bakeer
- Indiana Hemophilia and Thrombosis Center, Indianapolis, Indiana, USA
| | - Amy L Dunn
- Nationwide Children's Hospital Division of Hematology, Oncology and Bone Marrow Transplant, Columbus, Ohio, USA
| | - Sridhar Gibikote
- Department of Radiology, Christian Medical College, Vellore, India
| | | | - Rolf C R Ljung
- Department of Clinical Sciences Lund - Pediatrics, Lund University, Lund, Sweden
| | | | - Helen Pergantou
- Haemophilia Centre/Haemostasis and Thrombosis Unit, Aghia Sophia Children's Hospital, Athens, Greece
| | - Karen Strike
- Hamilton Niagara Regional Hemophilia Centre, McMaster Children's Hospital, McMaster University, Hamilton, Canada
| | - Annette von Drygalski
- Hemophilia and Thrombosis Treatment Center, University of California San Diego, San Diego, California, USA
| | - Ningning Zhang
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Paul Babyn
- Department of Medical Imaging, University of Saskatchewan College of Medicine, Saskatoon, Saskatchewan, Canada
| | - Saunya Dover
- Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Andrea S Doria
- Department of Diagnostic Imaging, Department of Medical Imaging, Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
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Brakel BA, Sussman MS, Majeed H, Teitel J, Man C, Rayner T, Weiss R, Moineddin R, Blanchette V, Doria AS. T2 mapping magnetic resonance imaging of cartilage in hemophilia. Res Pract Thromb Haemost 2023; 7:102182. [PMID: 37767061 PMCID: PMC10520564 DOI: 10.1016/j.rpth.2023.102182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 09/29/2023] Open
Abstract
Background In hemophilia, recurrent hemarthrosis may lead to irreversible arthropathy. T2 mapping MRI may reflect cartilage changes at an earlier reversible stage of arthropathy as opposed to structural MRI. Objectives To evaluate interval changes of T2 mapping compared with the International Prophylaxis Study Group (IPSG) structural MRI scores of ankle cartilage in boys with hemophilia receiving prophylaxis. Methods Eight boys with hemophilia A (median age, 13; range, 9-17 years), 7 age- and sex-matched healthy boys (controls, median age, 15; range, 7-16 years). A multiecho spin-echo T2-weighted MRI sequence at 3.0T was used to obtain T2 maps of cartilage of boys with hemophilia and controls. Structural joint status was evaluated using the IPSG MRI score. Results T2 relaxation times of ankle cartilage increased significantly over time in both persons with hemophilia and controls (P = .002 and P = .00009, respectively). Changes in T2 relaxation time strongly correlated with changes in IPSG cartilage scores (rs = 0.93 to rs = 0.78 [P = .0007 to P = .023]), but not with changes in age (P = .304 to P = .840). Responsiveness of T2 relaxation times were higher than that of IPSG cartilage scores, with standardized response means >1.4 for T2 mapping in all regions-of-interest compared with 0.84 for IPSG cartilage scores. Baseline T2 relaxation time strongly correlated with timepoint 2 IPSG cartilage score (rs = 0.93 to rs = 0.82 [P = .001 to P = .012]) and T2 relaxation time (rs = 0.98 to rs = 0.88 [P = .00003 to P = .004]) changes in most regions-of-interest. Conclusion T2 mapping shows sensitivity to biochemical changes in cartilage prior to detectable damage using conventional MRI, offering potential for early detection of bleed-related cartilage damage in boys with hemophilia.
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Affiliation(s)
- Benjamin A. Brakel
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Marshall S. Sussman
- Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Haris Majeed
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Jerry Teitel
- Division of Hematology/Oncology, St Michael’s Hospital, Toronto, ON, Canada
| | - Carina Man
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Tammy Rayner
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Ruth Weiss
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Rahim Moineddin
- Division of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Victor Blanchette
- Department of Pediatrics, University of Toronto, Toronto, ON, Canada
- Division of Hematology/Oncology, The Hospital for Sick Children, Toronto, ON, Canada
| | - Andrea S. Doria
- Department of Diagnostic Imaging, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
- Department of Medical Imaging, University Health Network, University of Toronto, Toronto, Ontario, Canada
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van Leeuwen FHP, Timmer MA, de Jong PA, Fischer K, Foppen W. Screening for subclinical synovial proliferation in haemophilia: A systematic review and meta-analysis comparing physical examination and ultrasound. Haemophilia 2023; 29:445-455. [PMID: 36595617 DOI: 10.1111/hae.14737] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 11/29/2022] [Accepted: 12/14/2022] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Ultrasound is increasingly used as addition to physical examination for detection of subclinical joint changes in haemophilia. However, the added value of ultrasound to physical examination for detecting synovial proliferation is not fully established. AIM To determine the diagnostic accuracy of swelling at physical examination for ultrasound-detected synovial proliferation in haemophilia. METHODS PubMed and EMBASE were searched up to 2 August 2022. Studies reporting original data on occurrence of swelling at physical examination and synovial proliferation on ultrasound of index joints in persons with haemophilia were included. Risk of bias and applicability were assessed using the Quality Assessment of Diagnostic Accuracy Studies 2 (QUADAS-2) tool. Diagnostic accuracy parameters of swelling at physical examination for ultrasound-detected synovial proliferation were determined. Summary sensitivity and specificity were calculated using a bivariate random-effects model. RESULTS Fifteen studies reporting on swelling at physical examination and synovial proliferation on ultrasound in 2890 joints of 627 patients were included. Prevalence of subclinical synovial proliferation ranged between 0% and 55%. Sensitivity of swelling was low [summary estimate .34; 95% confidence interval (CI) .24-.46], while specificity was high (summary estimate .97; CI .92-.99). Predictive values varied widely due to inter-study differences in prevalence of synovial proliferation. CONCLUSION Joint swelling has low sensitivity for presence of ultrasound-detected synovial proliferation in haemophilia, suggesting underestimation of synovial proliferation by physical examination alone. Consequently, ultrasound screening may generate important information on synovial changes which would otherwise remain undetected.
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Affiliation(s)
- Flora H P van Leeuwen
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Merel A Timmer
- Center for Benign Hematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Pim A de Jong
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Kathelijn Fischer
- Center for Benign Hematology, Thrombosis and Haemostasis, Van Creveldkliniek, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Wouter Foppen
- Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
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Zhang L, Wei S, Li J, Wang P, Yinghui G. Value of 3.0T MRI T2 mapping combined with SWI for the assessment of early lesions in hemophilic arthropathy. HEMATOLOGY (AMSTERDAM, NETHERLANDS) 2022; 27:1263-1271. [PMID: 36472890 DOI: 10.1080/16078454.2022.2147316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE To explore the value of magnetic resonance imaging (MRI) T2 mapping combined with susceptibility-weighted imaging (SWI) in detecting early cartilage damage and joint bleeding in the hemophilic arthropathy (HA). METHODS 147 patients and 56 healthy controls were prospectively recruited. The knees were divided into groups A and B according to the criteria of the International Cartilage Repair Society (ICRS). The Regions of Interest (ROIs) of T2 mapping were drawn for the patella, lateral and medial femoral condyle, and lateral and medial tibial condyle. The T2 values were compared between the patients and control group using one-way ANOVA. The joint count data of International Prophylaxis Study Group (IPSG) scores of conventional and SWI sequences were statistically described using the composition ratio, and the rank sum test was used for the difference analysis. RESULTS Finally, there were 99 joints in the control group, 135 knees in group A, and 94 knees in group B. There was a significant difference between the T2 value in each subgroup. Comparison of T2 value groups in each cartilage partition, except for group A and group B of the patella, revealed significant differences (all P<0.05). SWI was likely more sensitive than conventional sequences in detecting hemosiderin deposits in hemophilic joints. In addition, the IPSG scores detected by the SWI were generally higher than those of conventional sequences. CONCLUSIONS MR T2 mapping combined with SWI has great potential to be used for detecting early cartilage damage and micro-hemosiderin deposition in hemophiliac arthropathies and developing preventative treatment plans.
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Affiliation(s)
- Lu Zhang
- Department of Medical Imaging, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, People's Republic of China
| | - Shufang Wei
- Department of Radiology, Fuwai Central China Cardiovascular Hospital, Zhengzhou, People's Republic of China
| | - Jiajia Li
- Department of Radiology, Fuwai Central China Cardiovascular Hospital, Zhengzhou, People's Republic of China
| | - Pengming Wang
- Department of Radiology, The First Affiliated Hospital of Xinxiang Medical College, Xinxiang, People's Republic of China
| | - Ge Yinghui
- Department of Medical Imaging, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, People's Republic of China
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Artificial Intelligence Algorithm-Based Magnetic Resonance Imaging to Evaluate the Effect of Radiation Synovectomy for Hemophilic Arthropathy. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:5694163. [PMID: 35360269 PMCID: PMC8957465 DOI: 10.1155/2022/5694163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/29/2022] [Accepted: 02/03/2022] [Indexed: 11/17/2022]
Abstract
This study aimed to discuss magnetic resonance imaging (MRI) based on artificial intelligence (AI) algorithm to evaluate the effect of radiation synovectomy for hemophilic arthropathy (HA). MRI based on the Canny algorithm was applied and compared with conventional MRI to evaluate its application effects according to the PSNR and SSIM. Sixty patients diagnosed with HA were selected as the research subjects. According to the detection method, the patients were divided into group A (pathological detection after radiation synovectomy), group B (conventional MRI detection), and group C (MRI detection based on the Canny algorithm). The application value of MRI based on the Canny algorithm was judged by comparing the differences between the two detection methods and pathological results. The results displayed that the reconstruction effect of the Canny algorithm was remarkably better than that of the traditional algorithm regarding the peak signal-to-noise ratio (PSNR) and structural similarity (SSIM), which showed a clearer synovial contour. The results of the IPSG score of joint effusion and hemorrhage showed that there was a difference in the detection rate of joints between conventional MRI and pathological results on the score of 1 and 2 (P < 0.05); and there was no significant difference between the MRI and pathological results based on the Canny algorithm (P > 0.05). The results of the IPSG score of synovial hyperplasia showed that the detection rate of conventional MRI was different from pathological results on the score of 1 and 2 (P < 0.05); and there was no significant difference between the MRI and pathological results based on the Canny algorithm (P > 0.05). The results of the IPSG score of hemosiderin deposition showed that the detection rate of conventional MRI was different from the pathological results on the score of 1 and 2 (P < 0.05); and there was no significant difference between the MRI and pathological results based on the Canny algorithm (P > 0.05). The synovial volume of patients after surgery was reduced compared with that before surgery. One-factor variance was used to analyze the clinical hemorrhage frequency before and after surgery, and the results showed that the differences were statistically significant (P < 0.05). Therefore, MRI on account of AI algorithm made it easier to detect synovial contour, which was helpful to evaluate the efficacy of polygenic risk scores (PRS) surgery in HA patients. MRI based on the Canny algorithm had less differences between the score of hemophilic arthropathy and pathological results, which could replace conventional MRI examination and have clinical application value.
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Di Minno MND, Napolitano M, Giuffrida AC, Baldacci E, Carulli C, Boccalandro E, Bruno C, Forneris E, Ricca I, Passeri W, Martinelli M, Rivolta GF, Solimeno LP, Martinoli C, Rocino A, Pasta G. Diagnosis and treatment of chronic synovitis in patients with haemophilia: consensus statements from the Italian Association of Haemophilia Centres. Br J Haematol 2021; 196:871-883. [PMID: 34923621 PMCID: PMC9299781 DOI: 10.1111/bjh.17919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/28/2021] [Accepted: 10/13/2021] [Indexed: 01/19/2023]
Abstract
Although synovitis is recognized as a marker of joint disease activity, its periodic assessment is not included in routine clinical surveillance of patients with haemophilia (PwH). In order to evaluate the current knowledge and to identify controversial issues, a preliminary literature search by the Musculoskeletal Committee of the Italian Association of Haemophilia Centres (AICE) has been conducted. Statements have been established and sent to the Italian AICE members to collect their level of agreement or disagreement by a Delphi process. Thirty‐seven consensus recommendations have been drafted. We found a general agreement on the indication to consider the presence of synovitis as a marker of joint disease activity in PwH. Accordingly, there was agreement on the indication to search for synovitis both in patients reporting joint pain and in asymptomatic ones, recognizing ultrasound as the most practical imaging technique to perform periodic joint screening. Interestingly, after detection of synovitis, there was agreement on the indication to modify the therapeutic approach, suggesting prophylaxis in patients treated on demand and tailoring treatment in patients already under prophylaxis. Whereas the need of an early consultation with a physiotherapist is recommended for PwH affected by chronic synovitis, the exact timing for an orthopaedic surgeon consultation is currently unknown.
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Affiliation(s)
| | - Mariasanta Napolitano
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy
| | | | - Erminia Baldacci
- Hematology, University Hospital Policlinico Umberto I, Rome, Italy
| | - Christian Carulli
- Department of Health Sciences, Orthopaedic Clinic, University of Florence, Florence, Italy
| | - Elena Boccalandro
- Angelo Bianchi Bonomi Haemophilia and Thrombosis Center, IRCCS Cà Granda Foundation, Maggiore Hospital Policlinic, Milan, Italy
| | - Clarissa Bruno
- Haemophilia Center and Thrombosis, Policlinico, Bari, Italy
| | - Eleonora Forneris
- Città della Salute e della Scienza University Hospital, Turin, Italy
| | - Irene Ricca
- Città della Salute e della Scienza University Hospital, Turin, Italy
| | - Walter Passeri
- Rehabilitation Service, "Domus Salutis" Casa di Cura, "Teresa Camplani" Foundation, Brescia, Italy
| | - Marco Martinelli
- Rehabilitation Service, "Domus Salutis" Casa di Cura, "Teresa Camplani" Foundation, Brescia, Italy
| | - Gianna Franca Rivolta
- Regional Reference Centre for Inherited Bleeding Disorders, University Hospital of Parma, Parma, Italy
| | - Luigi Piero Solimeno
- Angelo Bianchi Bonomi Haemophilia and Thrombosis Center, IRCCS Cà Granda Foundation, Maggiore Hospital Policlinic, Traumatology and Orthopaedic Unit, Milan, Italy
| | - Carlo Martinoli
- Department of Health Science (DISSAL), University of Genoa, Unit of Radiology and IRCCS San Martino Hospital, Genoa, Italy
| | - Angiola Rocino
- Haemophilia and Thrombosis Centre, Haematology, Ospedale del Mare, ASL Napoli 1 Centro, Naples, Italy
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Rodriguez-Merchan EC. Management of musculoskeletal complications in patients with hemophilia: literature review and expert recommendations. Cardiovasc Hematol Disord Drug Targets 2021; 21:162-166. [PMID: 33906595 DOI: 10.2174/1871529x21666210427134232] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/02/2021] [Accepted: 03/01/2021] [Indexed: 11/22/2022]
Abstract
In people with hemophilia, hematological prophylaxis during childhood and adolescence could elude the occurrence of musculoskeletal complications (in joints and muscles) if the concentration of the defective factor is averted from decreasing under 1% of normal. Prompt management is of capital significance as the juvenile skeleton is hypersensitive to the adverse events of the disease; intense structural defects might appear rapidly. Important articular bleeds and inveterate hypertrophy of the articular synovial membrane must be treated vigorously to preclude joint degeneration (hemophilic arthropathy). At the moment that extreme joint disease is in place with intense affliction, the goal must be to reestablish activity whilst at the same time reducing the peril to the patient. Articular debridement is an efficacious surgical technique to accomplish this goal, particularly around the knee or ankle, and may be contemplated to be a backup to ankle arthrodesis or ankle or knee replacement in patients of younger age. Eventually joint replacement can commonly reestablish both articular mobility and function in an unhealthy articulation.
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Affiliation(s)
- E Carlos Rodriguez-Merchan
- Osteoarticular Surgery Research, Hospital La Paz Institute for Health Research - IdiPAZ (La Paz University Hospital - Autonomous University of Madrid), Madrid. Spain
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Majeed H, Ahmed H, Sussman MS, Macgowan C, Rayner T, Weiss R, Feldman BM, Doria AS. Understanding Early Hemophilic Arthropathy in Children and Adolescents Through MRI T 2 Mapping. J Magn Reson Imaging 2020; 53:827-837. [PMID: 33135834 DOI: 10.1002/jmri.27406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Persons with hemophilia experience hemarthrosis, which can lead to cartilage degeneration, causing physical impairment. MRI T2 mapping has the potential to be used as a tool to evaluate early arthropathic changes and cartilage degeneration in patients with hemophilia. PURPOSE To assess the value of MRI-T2 mapping as a tool for investigating the cartilage status of children and adolescents with hemophilic arthropathy. STUDY TYPE Prospective, cross-sectional. SUBJECTS Twenty-eight boys with hemophilia (aged 5-17 years) and 23 healthy boys (aged 7-17 years). FIELD STRENGTH/SEQUENCES A multiecho spin-echo T2 -weighted gradient echo sequence was used on a 3.0T magnet. ASSESSMENT MRI-T2 maps of ankle (tibia-talus) (n = 19) or knee (femur-tibia) (n = 9) cartilage were assessed in hemophilia and healthy groups. An anatomically-based MRI score was also assigned to each ankle/knee. STATISTICAL TESTS Pearson's correlation coefficient (r), linear regression, intraclass correlation coefficient (ICC), and analysis of variance (ANOVA) test. RESULTS Negative associations between age and ankle/knee cartilage T2 relaxation times were found in hemophilia (r = -0.72 [P = 0.03] to -0.55 [P = 0.01]) and healthy (r = -0.84 [P < 0.001] to -0.55 [P = 0.20]) groups. There were nonsignificant associations between ankle cartilage T2 relaxation times and MRI scores (r = -0.15 [P = 0.54] to 0.31 [P = 0.19]). DATA CONCLUSION Results of this clinical investigation emphasize the potential importance of MRI-T2 maps as a tool to understand the functional status of cartilage in children and adolescents with hemophilic arthropathy, while holding promise for the detection of early cartilage degeneration prior to macroscopic characterization by conventional MRI. MRI-T2 mapping may provide novel information that is not reflected in the anatomically-based MRI scoring system. LEVEL OF EVIDENCE 3 TECHNICAL EFFICACY STAGE: 2.
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Affiliation(s)
- Haris Majeed
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Humayun Ahmed
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada
| | - Marshall S Sussman
- Department of Medical Imaging, University Health Network and University of Toronto, Toronto, Ontario, Canada
| | - Christopher Macgowan
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Tammy Rayner
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ruth Weiss
- Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Brian M Feldman
- Division of Rheumatology, The Hospital for Sick Children, Toronto, Ontario, Canada.,Department of Pediatrics, Faculty of Medicine, Institute of Health Policy, Management & Evaluation, Toronto, Ontario, Canada.,Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Andrea S Doria
- Institute of Medical Science, University of Toronto, Toronto, Ontario, Canada.,Department of Medical Imaging, University Health Network and University of Toronto, Toronto, Ontario, Canada.,Department of Diagnostic Imaging, The Hospital for Sick Children, Toronto, Ontario, Canada
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Andreisek G. Editorial for "Understanding Early Hemophilic Arthropathy in Children and Adolescents Through MRI T2 Mapping". J Magn Reson Imaging 2020; 53:838-839. [PMID: 33098133 DOI: 10.1002/jmri.27404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 09/09/2020] [Indexed: 11/10/2022] Open
Affiliation(s)
- Gustav Andreisek
- Cantonal Hospital Munsterlingen, Spital Thurgau AG, Münsterlingen, Switzerland
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