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Barbieri M, Hooijmans MT, Moulin K, Cork TE, Ennis DB, Gold GE, Kogan F, Mazzoli V. A deep learning approach for fast muscle water T2 mapping with subject specific fat T2 calibration from multi-spin-echo acquisitions. Sci Rep 2024; 14:8253. [PMID: 38589478 PMCID: PMC11002020 DOI: 10.1038/s41598-024-58812-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 04/03/2024] [Indexed: 04/10/2024] Open
Abstract
This work presents a deep learning approach for rapid and accurate muscle water T2 with subject-specific fat T2 calibration using multi-spin-echo acquisitions. This method addresses the computational limitations of conventional bi-component Extended Phase Graph fitting methods (nonlinear-least-squares and dictionary-based) by leveraging fully connected neural networks for fast processing with minimal computational resources. We validated the approach through in vivo experiments using two different MRI vendors. The results showed strong agreement of our deep learning approach with reference methods, summarized by Lin's concordance correlation coefficients ranging from 0.89 to 0.97. Further, the deep learning method achieved a significant computational time improvement, processing data 116 and 33 times faster than the nonlinear least squares and dictionary methods, respectively. In conclusion, the proposed approach demonstrated significant time and resource efficiency improvements over conventional methods while maintaining similar accuracy. This methodology makes the processing of water T2 data faster and easier for the user and will facilitate the utilization of the use of a quantitative water T2 map of muscle in clinical and research studies.
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Affiliation(s)
- Marco Barbieri
- Department of Radiology, Stanford University, Stanford, CA, USA.
| | - Melissa T Hooijmans
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Kevin Moulin
- Department of Cardiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Tyler E Cork
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Daniel B Ennis
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Garry E Gold
- Department of Radiology, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, CA, USA
- Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University School of Medicine, New York, NY, USA
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2
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Hooijmans MT, Veeger TTJ, Mazzoli V, van Assen HC, de Groot JH, Gottwald LM, Nederveen AJ, Strijkers GJ, Kan HE. Muscle fiber strain rates in the lower leg during ankle dorsi-/plantarflexion exercise. NMR Biomed 2024; 37:e5064. [PMID: 38062865 DOI: 10.1002/nbm.5064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 02/17/2024]
Abstract
Static quantitative magnetic resonance imaging (MRI) provides readouts of structural changes in diseased muscle, but current approaches lack the ability to fully explain the loss of contractile function. Muscle contractile function can be assessed using various techniques including phase-contrast MRI (PC-MRI), where strain rates are quantified. However, current two-dimensional implementations are limited in capturing the complex motion of contracting muscle in the context of its three-dimensional (3D) fiber architecture. The MR acquisitions (chemical shift-encoded water-fat separation scan, spin echo-echoplanar imaging with diffusion weighting, and two time-resolved 3D PC-MRI) wereperformed at 3 T. PC-MRI acquisitions and performed with and without load at 7.5% of the maximum voluntary dorsiflexion contraction force. Acquisitions (3 T, chemical shift-encoded water-fat separation scan, spin echo-echo planar imaging with diffusion weighting, and two time-resolved 3D PC-MRI) were performed with and without load at 7.5% of the maximum voluntary dorsiflexion contraction force. Strain rates and diffusion tensors were calculated and combined to obtain strain rates along and perpendicular to the muscle fibers in seven lower leg muscles during the dynamic dorsi-/plantarflexion movement cycle. To evaluate strain rates along the proximodistal muscle axis, muscles were divided into five equal segments. t-tests were used to test if cyclic strain rate patterns (amplitude > 0) were present along and perpendicular to the muscle fibers. The effects of proximal-distal location and load were evaluated using repeated measures ANOVAs. Cyclic temporal strain rate patterns along and perpendicular to the fiber were found in all muscles involved in dorsi-/plantarflexion movement (p < 0.0017). Strain rates along and perpendicular to the fiber were heterogeneously distributed over the length of most muscles (p < 0.003). Additional loading reduced strain rates of the extensor digitorum longus and gastrocnemius lateralis muscle (p < 0.001). In conclusion, the lower leg muscles involved in cyclic dorsi-/plantarflexion exercise showed cyclic fiber strain rate patterns with amplitudes that varied between muscles and between the proximodistal segments within the majority of muscles.
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Affiliation(s)
- Melissa T Hooijmans
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Thom T J Veeger
- C. J. Gorter MRI Center, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Hans C van Assen
- Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jurriaan H de Groot
- Department of Rehabilitation Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Lukas M Gottwald
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Aart J Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Gustav J Strijkers
- Department of Biomedical Engineering and Physics, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Hermien E Kan
- C. J. Gorter MRI Center, Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands
- Duchenne Center Netherlands, Leiden, The Netherlands
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Raya JG, Duarte A, Wang N, Mazzoli V, Jaramillo D, Blamire AM, Dietrich O. Applications of Diffusion-Weighted MRI to the Musculoskeletal System. J Magn Reson Imaging 2024; 59:376-396. [PMID: 37477576 DOI: 10.1002/jmri.28870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 07/22/2023] Open
Abstract
Diffusion-weighted imaging (DWI) is an established MRI technique that can investigate tissue microstructure at the scale of a few micrometers. Musculoskeletal tissues typically have a highly ordered structure to fulfill their functions and therefore represent an optimal application of DWI. Even more since disruption of tissue organization affects its biomechanical properties and may indicate irreversible damage. The application of DWI to the musculoskeletal system faces application-specific challenges on data acquisition including susceptibility effects, the low T2 relaxation time of most musculoskeletal tissues (2-70 msec) and the need for sub-millimetric resolution. Thus, musculoskeletal applications have been an area of development of new DWI methods. In this review, we provide an overview of the technical aspects of DWI acquisition including diffusion-weighting, MRI pulse sequences and different diffusion regimes to study tissue microstructure. For each tissue type (growth plate, articular cartilage, muscle, bone marrow, intervertebral discs, ligaments, tendons, menisci, and synovium), the rationale for the use of DWI and clinical studies in support of its use as a biomarker are presented. The review describes studies showing that DTI of the growth plate has predictive value for child growth and that DTI of articular cartilage has potential to predict the radiographic progression of joint damage in early stages of osteoarthritis. DTI has been used extensively in skeletal muscle where it has shown potential to detect microstructural and functional changes in a wide range of muscle pathologies. DWI of bone marrow showed to be a valuable tool for the diagnosis of benign and malignant acute vertebral fractures and bone metastases. DTI and diffusion kurtosis have been investigated as markers of early intervertebral disc degeneration and lower back pain. Finally, promising new applications of DTI to anterior cruciate ligament grafts and synovium are presented. The review ends with an overview of the use of DWI in clinical routine. EVIDENCE LEVEL: 5 TECHNICAL EFFICACY: Stage 3.
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Affiliation(s)
- José G Raya
- Department of Radiology, NYU Langone Health, New York, New York, USA
| | - Alejandra Duarte
- Division of Musculoskeletal Radiology, Department of Radiology, Fundación Santa Fe de Bogotá, Bogotá, Colombia
| | - Nian Wang
- Department of Radiology and Imaging Sciences, Indiana University, Indianapolis, Indiana, USA
- Stark Neurosciences Research Institute, Indiana University, Indianapolis, Indiana, USA
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Diego Jaramillo
- Department of Radiology, Columbia University Medical Center, New York, New York, USA
| | - Andrew M Blamire
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Olaf Dietrich
- Department of Radiology, LMU University Hospital, LMU Munich, Munich, Germany
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Mostert JM, Dur NB, Li X, Ellermann JM, Hemke R, Hales L, Mazzoli V, Kogan F, Griffith JF, Oei EH, van der Heijden RA. Advanced Magnetic Resonance Imaging and Molecular Imaging of the Painful Knee. Semin Musculoskelet Radiol 2023; 27:618-631. [PMID: 37935208 PMCID: PMC10629992 DOI: 10.1055/s-0043-1775741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
Chronic knee pain is a common condition. Causes of knee pain include trauma, inflammation, and degeneration, but in many patients the pathophysiology remains unknown. Recent developments in advanced magnetic resonance imaging (MRI) techniques and molecular imaging facilitate more in-depth research focused on the pathophysiology of chronic musculoskeletal pain and more specifically inflammation. The forthcoming new insights can help develop better targeted treatment, and some imaging techniques may even serve as imaging biomarkers for predicting and assessing treatment response in the future. This review highlights the latest developments in perfusion MRI, diffusion MRI, and molecular imaging with positron emission tomography/MRI and their application in the painful knee. The primary focus is synovial inflammation, also known as synovitis. Bone perfusion and bone metabolism are also addressed.
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Affiliation(s)
- Jacob M. Mostert
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Niels B.J. Dur
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Orthopedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Xiufeng Li
- Department of Radiology, Center for Magnetic Resonance Research (CMRR), University of Minnesota, Minneapolis, Minnesota
| | - Jutta M. Ellermann
- Department of Radiology, Center for Magnetic Resonance Research (CMRR), University of Minnesota, Minneapolis, Minnesota
| | - Robert Hemke
- Department of Radiology and Nuclear Medicine, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Laurel Hales
- Department of Radiology, Stanford University, Stanford, California
| | | | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, California
| | - James F. Griffith
- Department of Imaging and Interventional Radiology Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong
| | - Edwin H.G. Oei
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Rianne A. van der Heijden
- Department of Radiology and Nuclear Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin
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Hooijmans MT, Schlaffke L, Bolsterlee B, Schlaeger S, Marty B, Mazzoli V. Compositional and Functional MRI of Skeletal Muscle: A Review. J Magn Reson Imaging 2023. [PMID: 37929681 DOI: 10.1002/jmri.29091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/09/2023] [Accepted: 10/09/2023] [Indexed: 11/07/2023] Open
Abstract
Due to its exceptional sensitivity to soft tissues, MRI has been extensively utilized to assess anatomical muscle parameters such as muscle volume and cross-sectional area. Quantitative Magnetic Resonance Imaging (qMRI) adds to the capabilities of MRI, by providing information on muscle composition such as fat content, water content, microstructure, hypertrophy, atrophy, as well as muscle architecture. In addition to compositional changes, qMRI can also be used to assess function for example by measuring muscle quality or through characterization of muscle deformation during passive lengthening/shortening and active contractions. The overall aim of this review is to provide an updated overview of qMRI techniques that can quantitatively evaluate muscle structure and composition, provide insights into the underlying biological basis of the qMRI signal, and illustrate how qMRI biomarkers of muscle health relate to function in healthy and diseased/injured muscles. While some applications still require systematic clinical validation, qMRI is now established as a comprehensive technique, that can be used to characterize a wide variety of structural and compositional changes in healthy and diseased skeletal muscle. Taken together, multiparametric muscle MRI holds great potential in the diagnosis and monitoring of muscle conditions in research and clinical applications. EVIDENCE LEVEL: 5 TECHNICAL EFFICACY: Stage 2.
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Affiliation(s)
- Melissa T Hooijmans
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Lara Schlaffke
- Department of Neurology BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Bart Bolsterlee
- Neuroscience Research Australia (NeuRA), Sydney, New South Wales, Australia
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, Australia
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Sarah Schlaeger
- Department of Diagnostic and Interventional Neuroradiology, School of Medicine, Klinikum rechts der Isar, Technical University of Munich, Munich, Germany
- Department of Radiology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Benjamin Marty
- Institute of Myology, Neuromuscular Investigation Center, NMR Laboratory, Paris, France
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, USA
- Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, NYU Langone Medical Center, New York, New York, USA
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Barbieri M, Watkins LE, Mazzoli V, Desai AD, Rubin E, Schmidt A, Gold GE, Hargreaves BA, Chaudhari AS, Kogan F. [Formula: see text] Field inhomogeneity correction for qDESS [Formula: see text] mapping: application to rapid bilateral knee imaging. MAGMA 2023; 36:711-724. [PMID: 37142852 PMCID: PMC10524110 DOI: 10.1007/s10334-023-01094-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 05/06/2023]
Abstract
PURPOSE [Formula: see text] mapping is a powerful tool for studying osteoarthritis (OA) changes and bilateral imaging may be useful in investigating the role of between-knee asymmetry in OA onset and progression. The quantitative double-echo in steady-state (qDESS) can provide fast simultaneous bilateral knee [Formula: see text] and high-resolution morphometry for cartilage and meniscus. The qDESS uses an analytical signal model to compute [Formula: see text] relaxometry maps, which require knowledge of the flip angle (FA). In the presence of [Formula: see text] inhomogeneities, inconsistencies between the nominal and actual FA can affect the accuracy of [Formula: see text] measurements. We propose a pixel-wise [Formula: see text] correction method for qDESS [Formula: see text] mapping exploiting an auxiliary [Formula: see text] map to compute the actual FA used in the model. METHODS The technique was validated in a phantom and in vivo with simultaneous bilateral knee imaging. [Formula: see text] measurements of femoral cartilage (FC) of both knees of six healthy participants were repeated longitudinally to investigate the association between [Formula: see text] variation and [Formula: see text]. RESULTS The results showed that applying the [Formula: see text] correction mitigated [Formula: see text] variations that were driven by [Formula: see text] inhomogeneities. Specifically, [Formula: see text] left-right symmetry increased following the [Formula: see text] correction ([Formula: see text] = 0.74 > [Formula: see text] = 0.69). Without the [Formula: see text] correction, [Formula: see text] values showed a linear dependence with [Formula: see text]. The linear coefficient decreased using the [Formula: see text] correction (from 24.3 ± 1.6 ms to 4.1 ± 1.8) and the correlation was not statistically significant after the application of the Bonferroni correction (p value > 0.01). CONCLUSION The study showed that [Formula: see text] correction could mitigate variations driven by the sensitivity of the qDESS [Formula: see text] mapping method to [Formula: see text], therefore, increasing the sensitivity to detect real biological changes. The proposed method may improve the robustness of bilateral qDESS [Formula: see text] mapping, allowing for an accurate and more efficient evaluation of OA pathways and pathophysiology through longitudinal and cross-sectional studies.
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Affiliation(s)
- Marco Barbieri
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Lauren E. Watkins
- Department of Radiology, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | | | - Arjun D. Desai
- Department of Radiology, Stanford University, Stanford, CA, USA
- Department of Electrical Engineering, Stanford University, Stanford, CA, USA
| | - Elka Rubin
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Andrew Schmidt
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - Garry Evan Gold
- Department of Radiology, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
| | - Brian Andrew Hargreaves
- Department of Radiology, Stanford University, Stanford, CA, USA
- Department of Bioengineering, Stanford University, Stanford, CA, USA
- Department of Electrical Engineering, Stanford University, Stanford, CA, USA
| | - Akshay Sanjay Chaudhari
- Department of Radiology, Stanford University, Stanford, CA, USA
- Department of Biomedical Data Science, Stanford University, Stanford, CA, USA
| | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, CA, USA
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Moran CJ, Middione MJ, Mazzoli V, McKay-Nault JA, Guidon A, Waheed U, Rosen EL, Poplack SP, Rosenberg J, Ennis DB, Hargreaves BA, Daniel BL. Multishot Diffusion-Weighted MRI of the Breasts in the Supine vs. Prone Position. J Magn Reson Imaging 2023; 58:951-962. [PMID: 36583628 PMCID: PMC10310889 DOI: 10.1002/jmri.28582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Diffusion-weighted imaging (DWI) may allow for breast cancer screening MRI without a contrast injection. Multishot methods improve prone DWI of the breasts but face different challenges in the supine position. PURPOSE To establish a multishot DWI (msDWI) protocol for supine breast MRI and to evaluate the performance of supine vs. prone msDWI. STUDY TYPE Prospective. POPULATION Protocol optimization: 10 healthy women (ages 22-56), supine vs. prone: 24 healthy women (ages 22-62) and five women (ages 29-61) with breast tumors. FIELD STRENGTH/SEQUENCE 3-T, protocol optimization msDWI: free-breathing (FB) 2-shots, FB 4-shots, respiratory-triggered (RT) 2-shots, RT 4-shots, supine vs. prone: RT 4-shot msDWI, T2-weighted fast-spin echo. ASSESSMENT Protocol optimization and supine vs. prone: three observers performed an image quality assessment of sharpness, aliasing, distortion (vs. T2), perceived SNR, and overall image quality (scale of 1-5). Apparent diffusion coefficients (ADCs) in fibroglandular tissue (FGT) and breast tumors were measured. STATISTICAL TESTS Effect of study variables on dichotomized ratings (4/5 vs. 1/2/3) and FGT ADCs were assessed with mixed-effects logistic regression. Interobserver agreement utilized Gwet's agreement coefficient (AC). Lesion ADCs were assessed by Bland-Altman analysis and concordance correlation (ρc ). P value <0.05 was considered statistically significant. RESULTS Protocol optimization: 4-shots significantly improved sharpness and distortion; RT significantly improved sharpness, aliasing, perceived SNR, and overall image quality. FGT ADCs were not significantly different between shots (P = 0.812), FB vs. RT (P = 0.591), or side (P = 0.574). Supine vs. prone: supine images were rated significantly higher for sharpness, aliasing, and overall image quality. FGT ADCs were significantly higher supine; lesion ADCs were highly correlated (ρc = 0.92). DATA CONCLUSION Based on image quality, supine msDWI outperformed prone msDWI. Lesion ADCs were highly correlated between the two positions, while FGT ADCs were higher in the supine position. EVIDENCE LEVEL 2. TECHNICAL EFFICACY Stage 1.
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Affiliation(s)
| | | | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, USA
| | | | - Arnaud Guidon
- Global MR Application and Workflow, GE Healthcare, Boston, Massachusetts, USA
| | - Uzma Waheed
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Eric L. Rosen
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Steven P. Poplack
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Jarrett Rosenberg
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Daniel B. Ennis
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Brian A. Hargreaves
- Department of Radiology, Stanford University, Stanford, California, USA
- Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Bruce L. Daniel
- Department of Radiology, Stanford University, Stanford, California, USA
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Lenchik L, Mazzoli V, Cawthon PM, Hepple RT, Boutin RD. Muscle Steatosis and Fibrosis in Older Adults, From the AJR Special Series on Imaging of Fibrosis. AJR Am J Roentgenol 2023. [PMID: 37610777 DOI: 10.2214/ajr.23.29742] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
The purpose of this article is to review steatosis and fibrosis of skeletal muscle, focusing on older adults. Although CT, MRI, and ultrasound are commonly used to image skeletal muscle and provide diagnoses for a variety of medical conditions, quantitative assessment of muscle steatosis and fibrosis is uncommon. This review provides radiologists with a broad perspective on muscle steatosis and fibrosis in older adults by considering their public health impact, biologic mechanisms, and evaluation using CT, MRI, and ultrasound. Promising directions in clinical research that employ artificial intelligence algorithms and the imaging assessment of biologic age are also reviewed. The presented imaging methods hold promise for improving the evaluation of common conditions affecting older adults including sarcopenia, frailty, and cachexia.
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Affiliation(s)
- Leon Lenchik
- Department of Radiology, Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157
| | - Valentina Mazzoli
- Department of Radiology, New York University School of Medicine, New York, NY
| | - Peggy M Cawthon
- Research InsQtute, California Pacific Medical Center, San Francisco, CA
- Department of Epidemiology and BiostaQsQcs, University of California San Francisco, San Francisco, CA
| | - Russell T Hepple
- Department of Physical Therapy, Department of Physiology and Aging, University of Florida, Gainesville, FL
| | - Robert D Boutin
- Department of Radiology, Stanford University School of Medicine, Stanford, CA
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9
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Schmidt AM, Desai AD, Watkins LE, Crowder HA, Black MS, Mazzoli V, Rubin EB, Lu Q, MacKay JW, Boutin RD, Kogan F, Gold GE, Hargreaves BA, Chaudhari AS. Generalizability of Deep Learning Segmentation Algorithms for Automated Assessment of Cartilage Morphology and MRI Relaxometry. J Magn Reson Imaging 2023; 57:1029-1039. [PMID: 35852498 PMCID: PMC9849481 DOI: 10.1002/jmri.28365] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Deep learning (DL)-based automatic segmentation models can expedite manual segmentation yet require resource-intensive fine-tuning before deployment on new datasets. The generalizability of DL methods to new datasets without fine-tuning is not well characterized. PURPOSE Evaluate the generalizability of DL-based models by deploying pretrained models on independent datasets varying by MR scanner, acquisition parameters, and subject population. STUDY TYPE Retrospective based on prospectively acquired data. POPULATION Overall test dataset: 59 subjects (26 females); Study 1: 5 healthy subjects (zero females), Study 2: 8 healthy subjects (eight females), Study 3: 10 subjects with osteoarthritis (eight females), Study 4: 36 subjects with various knee pathology (10 females). FIELD STRENGTH/SEQUENCE A 3-T, quantitative double-echo steady state (qDESS). ASSESSMENT Four annotators manually segmented knee cartilage. Each reader segmented one of four qDESS datasets in the test dataset. Two DL models, one trained on qDESS data and another on Osteoarthritis Initiative (OAI)-DESS data, were assessed. Manual and automatic segmentations were compared by quantifying variations in segmentation accuracy, volume, and T2 relaxation times for superficial and deep cartilage. STATISTICAL TESTS Dice similarity coefficient (DSC) for segmentation accuracy. Lin's concordance correlation coefficient (CCC), Wilcoxon rank-sum tests, root-mean-squared error-coefficient-of-variation to quantify manual vs. automatic T2 and volume variations. Bland-Altman plots for manual vs. automatic T2 agreement. A P value < 0.05 was considered statistically significant. RESULTS DSCs for the qDESS-trained model, 0.79-0.93, were higher than those for the OAI-DESS-trained model, 0.59-0.79. T2 and volume CCCs for the qDESS-trained model, 0.75-0.98 and 0.47-0.95, were higher than respective CCCs for the OAI-DESS-trained model, 0.35-0.90 and 0.13-0.84. Bland-Altman 95% limits of agreement for superficial and deep cartilage T2 were lower for the qDESS-trained model, ±2.4 msec and ±4.0 msec, than the OAI-DESS-trained model, ±4.4 msec and ±5.2 msec. DATA CONCLUSION The qDESS-trained model may generalize well to independent qDESS datasets regardless of MR scanner, acquisition parameters, and subject population. EVIDENCE LEVEL 1 TECHNICAL EFFICACY: Stage 1.
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Affiliation(s)
- Andrew M Schmidt
- Department of Radiology, Stanford University, Palo Alto, California, USA
| | - Arjun D Desai
- Department of Radiology, Stanford University, Palo Alto, California, USA
- Electrical Engineering, Stanford University, Palo Alto, California, USA
| | - Lauren E Watkins
- Department of Radiology, Stanford University, Palo Alto, California, USA
- Bioengineering, Stanford University, Palo Alto, California, USA
| | - Hollis A Crowder
- Mechanical Engineering, Stanford University, Palo Alto, California, USA
| | - Marianne S Black
- Department of Radiology, Stanford University, Palo Alto, California, USA
- Mechanical Engineering, Stanford University, Palo Alto, California, USA
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Palo Alto, California, USA
| | - Elka B Rubin
- Department of Radiology, Stanford University, Palo Alto, California, USA
| | - Quin Lu
- Philips Healthcare North America, Gainesville, Florida, USA
| | - James W MacKay
- Department of Radiology, University of Cambridge, Cambridge, UK
- Norwich Medical School, University of East Anglia, Norwich, UK
| | - Robert D Boutin
- Department of Radiology, Stanford University, Palo Alto, California, USA
| | - Feliks Kogan
- Department of Radiology, Stanford University, Palo Alto, California, USA
| | - Garry E Gold
- Department of Radiology, Stanford University, Palo Alto, California, USA
- Bioengineering, Stanford University, Palo Alto, California, USA
| | - Brian A Hargreaves
- Department of Radiology, Stanford University, Palo Alto, California, USA
- Electrical Engineering, Stanford University, Palo Alto, California, USA
- Bioengineering, Stanford University, Palo Alto, California, USA
| | - Akshay S Chaudhari
- Department of Radiology, Stanford University, Palo Alto, California, USA
- Biomedical Data Science, Stanford University, Palo Alto, California, USA
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10
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Watkins LE, Haddock B, MacKay JW, Baker J, Uhlrich SD, Mazzoli V, Gold GE, Kogan F. [ 18F]Sodium fluoride PET-MRI detects increased metabolic bone response to whole-joint loading stress in osteoarthritic knees. Osteoarthritis Cartilage 2022; 30:1515-1525. [PMID: 36031138 PMCID: PMC9922526 DOI: 10.1016/j.joca.2022.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 07/27/2022] [Accepted: 08/11/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Altered joint function is a hallmark of osteoarthritis (OA). Imaging techniques for joint function are limited, but [18F]sodium fluoride (NaF) PET-MRI may assess the acute joint response to loading stresses. [18F]NaF PET-MRI was used to study the acute joint response to exercise in OA knees, and compare relationships between regions of increased uptake after loading and structural OA progression two years later. METHODS In this prospective study, 10 participants with knee OA (59 ± 8 years; 8 female) were scanned twice consecutively using a PET-MR system and performed a one-legged squat exercise between scans. Changes in tracer uptake measures in 9 bone regions were compared between knees that did and did not exercise with a mixed-effects model. Areas of focally large changes in uptake between scans (ROIfocal, ΔSUVmax > 3) were identified and the presence of structural MRI features was noted. Five participants returned two years later to assess structural change on MRI. RESULTS There was a significant increase in [18F]NaF uptake in OA exercised knees (SUV P < 0.001, KiP = 0.002, K1P < 0.001) that differed by bone region. CONCLUSION There were regional differences in the acute bone metabolic response to exercise and areas of focally large changes in the metabolic bone response that might be representative of whole-joint dysfunction.
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Affiliation(s)
- L E Watkins
- Department of Radiology, Stanford University, Stanford CA, USA
| | | | - J W MacKay
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom
| | - J Baker
- Department of Radiology, Stanford University, Stanford CA, USA
| | - S D Uhlrich
- Department of Mechanical Engineering, Stanford University, Stanford CA, USA
| | - V Mazzoli
- Department of Radiology, Stanford University, Stanford CA, USA
| | - G E Gold
- Department of Radiology, Stanford University, Stanford CA, USA
| | - F Kogan
- Department of Radiology, Stanford University, Stanford CA, USA.
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11
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Secondulfo L, Hooijmans MT, Suskens JJ, Mazzoli V, Maas M, Tol JL, Nederveen AJ, Strijkers GJ. A diffusion tensor-based method facilitating volumetric assessment of fiber orientations in skeletal muscle. PLoS One 2022; 17:e0261777. [PMID: 35085267 PMCID: PMC8794095 DOI: 10.1371/journal.pone.0261777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 12/09/2021] [Indexed: 11/19/2022] Open
Abstract
Background
The purpose of this study was to develop a DTI-based method to quantitatively assess fiber angles and changes therein in leg muscles in order to facilitate longitudinal studies on muscle fiber architectural adaptations in healthy subjects.
Methods
The upper legs of five volunteers were scanned twice on the same day. The right lower legs of five volunteers were scanned twice with the ankle in three positions, i.e. -15° dorsiflexion, 0° neutral position, and 30° plantarflexion. The MRI protocols consisted of a noise scan, a 3-point mDixon scan and a DTI scan. Fiber-angle color maps were generated for four muscles in the upper legs and two muscles in the lower leg. Voxel-wise fiber angles (θ) were calculated from the angle between the principal eigenvector of the diffusion tensor and a reference line defined between the origo and insertion points of each muscle. Bland-Altman analysis, intraclass correlation coefficient (ICC), coefficient of variation (CV%), minimal detectable change (MDC), standard error (SE) and Friedman test were used for assessing the feasibility of this method and in order to have an indication of the repeatability and the sensitivity.
Results
Bland-Altman analysis showed good repeatability (CV%<10 and 0.7≤ICC≤0.9) with exception of the Tibialis Anterior (TA) muscle in dorsiflexion position(CV%: 12.2) and the Semitendinosus (ST) muscle (left leg) (CV%: 11.4). The best repeatability metrics were found for the SOL muscle in neutral position (CV%: 2.6). Changes in average θ in TA and SOL with ankle positions were observed in accordance with expected agonist and antagonist functions of both muscles. For example, for the anterior left compartment the change in fiber angle Δθ with respect to the neutral position Δθ = -1.6° ± 0.8° and 2.2° ± 2.8° (p = 0.008), for dorsiflexion and plantarflexion, respectively.
Conclusion
Our method facilitates fast inspection and quantification of muscle fiber angles in the lower and upper leg muscles in rest and detection of changes in lower-leg muscle fiber angles with varying ankle angles.
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Affiliation(s)
- Laura Secondulfo
- Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- * E-mail:
| | - Melissa T. Hooijmans
- Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Joep J. Suskens
- Department of Orthopedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, United States of America
| | - Mario Maas
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Johannes L. Tol
- Department of Orthopedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Aart J. Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Gustav J. Strijkers
- Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
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12
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Sandford HJC, MacKay JW, Watkins LE, Gold GE, Kogan F, Mazzoli V. Gadolinium-free assessment of synovitis using diffusion tensor imaging. NMR Biomed 2022; 35:e4614. [PMID: 34549476 PMCID: PMC8688337 DOI: 10.1002/nbm.4614] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 08/14/2021] [Accepted: 08/16/2021] [Indexed: 05/08/2023]
Abstract
The dynamic contrast-enhanced (DCE)-MRI parameter Ktrans can quantify the intensity of synovial inflammation (synovitis) in knees with osteoarthritis (OA), but requires the use of gadolinium-based contrast agent (GBCA). Diffusion tensor imaging (DTI) measures the diffusion of water molecules with parameters mean diffusivity (MD) and fractional anisotropy (FA), and has been proposed as a method to detect synovial inflammation without the use of GBCA. The purpose of this study is to (1) determine the ability of DTI to quantify the intensity of synovitis in OA by comparing MD and FA with our imaging gold standard Ktrans within the synovium and (2) compare DTI and DCE-MRI measures with the semi-quantitative grading of OA severity with the Kellgren-Lawrence (KL) and MRI Osteoarthritis Knee Score (MOAKS) systems, in order to assess the relationship between synovitis intensity and OA severity. Within the synovium, MD showed a significant positive correlation with Ktrans (r = 0.79, p < 0.001), while FA showed a significant negative correlation with Ktrans (r = -0.72, p = 0.0026). These results show that DTI is able to quantify the intensity of synovitis within the whole synovium without the use of exogenous contrast agent. Additionally, MD, FA, and Ktrans values did not vary significantly when knees were separated by KL grade (p = 0.15, p = 0.32, p = 0.41, respectively), while MD (r = 0.60, p = 0.018) and Ktrans (r = 0.62, p = 0.013) had a significant positive correlation and FA (r = -0.53, p = 0.043) had a negative correlation with MOAKS. These comparisons indicate that quantitative measures of the intensity of synovitis may provide information in addition to morphological assessment to evaluate OA severity. Using DTI to quantify the intensity of synovitis without GBCA may be helpful to facilitate a broader clinical assessment of the severity of OA.
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Affiliation(s)
| | - James W. MacKay
- Norwich Medical School, University of East Anglia, Norwich, UK
- Department of Radiology, University of Cambridge, Cambridge, UK
| | - Lauren E. Watkins
- Department of Radiology, Stanford University, Stanford, California
- Department of Bioengineering, Stanford University, Stanford, California
| | - Garry E. Gold
- Department of Radiology, Stanford University, Stanford, California
- Department of Bioengineering, Stanford University, Stanford, California
- Department of Orthopaedic Surgery, Stanford University, Stanford, California
| | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, California
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13
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Crowder HA, Mazzoli V, Black MS, Watkins LE, Kogan F, Hargreaves BA, Levenston ME, Gold GE. Characterizing the transient response of knee cartilage to running: Decreases in cartilage T 2 of female recreational runners. J Orthop Res 2021; 39:2340-2352. [PMID: 33483997 PMCID: PMC8295402 DOI: 10.1002/jor.24994] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/20/2020] [Accepted: 01/19/2021] [Indexed: 02/04/2023]
Abstract
Cartilage transmits and redistributes biomechanical loads in the knee joint during exercise. Exercise-induced loading alters cartilage hydration and is detectable using quantitative magnetic resonance imaging (MRI), where T2 relaxation time (T2 ) is influenced by cartilage collagen composition, fiber orientation, and changes in the extracellular matrix. This study characterized short-term transient responses of healthy knee cartilage to running-induced loading using bilateral scans and image registration. Eleven healthy female recreational runners (33.73 ± 4.22 years) and four healthy female controls (27.25 ± 1.38 years) were scanned on a 3T GE MRI scanner with quantitative 3D double-echo in steady-state before running over-ground (runner group) or resting (control group) for 40 min. Subjects were scanned immediately post-activity at 5-min intervals for 60 min. T2 times were calculated for femoral, tibial, and patellar cartilage at each time point and analyzed using a mixed-effects model and Bonferroni post hoc. There were immediate decreases in T2 (mean ± SEM) post-run in superficial femoral cartilage of at least 3.3% ± 0.3% (p = .002) between baseline and Time 0 that remained for 25 min, a decrease in superficial tibial cartilage T2 of 2.9% ± 0.4% (p = .041) between baseline and Time 0, and a decrease in superficial patellar cartilage T2 of 3.6% ± 0.3% (p = .020) 15 min post-run. There were decreases in the medial posterior region of superficial femoral cartilage T2 of at least 5.3 ± 0.2% (p = .022) within 5 min post-run that remained at 60 min post-run. These results increase understanding of transient responses of healthy cartilage to repetitive, exercise-induced loading and establish preliminary recommendations for future definitive studies of cartilage response to running.
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Affiliation(s)
- Hollis A. Crowder
- Department of Mechanical Engineering, Stanford University, Stanford, California, USA,Department of Radiology, Stanford University, Stanford, California, USA
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Marianne S. Black
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Lauren E. Watkins
- Department of Radiology, Stanford University, Stanford, California, USA,Department of Bioengineering, Stanford University, Stanford, California, USA
| | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Brian A. Hargreaves
- Department of Radiology, Stanford University, Stanford, California, USA,Department of Bioengineering, Stanford University, Stanford, California, USA,Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Marc E. Levenston
- Department of Mechanical Engineering, Stanford University, Stanford, California, USA,Department of Radiology, Stanford University, Stanford, California, USA
| | - Garry E. Gold
- Department of Radiology, Stanford University, Stanford, California, USA
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14
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Watkins L, MacKay J, Haddock B, Mazzoli V, Uhlrich S, Gold G, Kogan F. Assessment of quantitative [ 18F]Sodium fluoride PET measures of knee subchondral bone perfusion and mineralization in osteoarthritic and healthy subjects. Osteoarthritis Cartilage 2021; 29:849-858. [PMID: 33639259 PMCID: PMC8159876 DOI: 10.1016/j.joca.2021.02.563] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 01/06/2021] [Accepted: 02/01/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Molecular information derived from dynamic [18F]sodium fluoride ([18F]NaF) PET imaging holds promise as a quantitative marker of bone metabolism. The objective of this work was to evaluate physiological mechanisms of [18F]NaF uptake in subchondral bone of individuals with and without knee osteoarthritis (OA). METHODS Eleven healthy volunteers and twenty OA subjects were included. Both knees of all subjects were scanned simultaneously using a 3T hybrid PET/MRI system. MRI MOAKS assessment was performed to score the presence and size of osteophytes, bone marrow lesions, and cartilage lesions. Subchondral bone kinetic parameters of bone perfusion (K1), tracer extraction fraction, and total tracer uptake into bone (Ki) were evaluated using the Hawkins 3-compartment model. Measures were compared between structurally normal-appearing bone regions and those with structural findings. RESULTS Mean and maximum SUV and kinetic parameters Ki, K1, and extraction fraction were significantly different between Healthy subjects and subjects with OA. Between-group differences in metabolic parameters were observed both in regions where the OA group had degenerative changes as well as in regions that appeared structurally normal. CONCLUSIONS Results suggest that bone metabolism is altered in OA subjects, including bone regions with and without structural findings, compared to healthy subjects. Kinetic parameters of [18F]NaF uptake in subchondral bone show potential to quantitatively evaluate the role of bone physiology in OA initiation and progression. Objective measures of bone metabolism from [18F]NaF PET imaging can complement assessments of structural abnormalities observed on MRI.
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Affiliation(s)
- L Watkins
- Department of Bioengineering, Stanford University, Stanford CA, USA; Department of Radiology, Stanford University, Stanford CA, USA.
| | - J MacKay
- Norwich Medical School, University of East Anglia, Norwich, United Kingdom; Department of Radiology, University of Cambridge, Cambridge, United Kingdom
| | | | - V Mazzoli
- Department of Radiology, Stanford University, Stanford CA, USA
| | - S Uhlrich
- Department of Mechanical Engineering, Stanford University, Stanford CA, USA
| | - G Gold
- Department of Bioengineering, Stanford University, Stanford CA, USA; Department of Radiology, Stanford University, Stanford CA, USA
| | - F Kogan
- Department of Radiology, Stanford University, Stanford CA, USA
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15
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Rubin EB, Mazzoli V, Black MS, Young K, Desai AD, Koff MF, Sreedhar A, Kogan F, Safran MR, Vincentini DJ, Knox KA, Yamada T, McCabe A, Majumdar S, Potter HG, Gold GE. Effects of the Competitive Season and Off-Season on Knee Articular Cartilage in Collegiate Basketball Players Using Quantitative MRI: A Multicenter Study. J Magn Reson Imaging 2021; 54:840-851. [PMID: 33763929 DOI: 10.1002/jmri.27610] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 03/05/2021] [Accepted: 03/09/2021] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Injuries to the articular cartilage in the knee are common in jumping athletes, particularly high-level basketball players. Unfortunately, these are often diagnosed at a late stage of the disease process, after tissue loss has already occurred. PURPOSE/HYPOTHESIS To evaluate longitudinal changes in knee articular cartilage and knee function in National Collegiate Athletic Association (NCAA) basketball players and their evolution over the competitive season and off-season. STUDY TYPE Longitudinal, multisite cohort study. POPULATION Thirty-two NCAA Division 1 athletes: 22 basketball players and 10 swimmers. FIELD STRENGTH/SEQUENCE Bilateral magnetic resonance imaging (MRI) using a combined T1ρ and T2 magnetization-prepared angle-modulated portioned k-space spoiled gradient-echo snapshots (MAPSS) sequence at 3T. ASSESSMENT We calculated T2 and T1ρ relaxation times to compare compositional cartilage changes between three timepoints: preseason 1, postseason 1, and preseason 2. Knee Osteoarthritis Outcome Scores (KOOS) were used to assess knee health. STATISTICAL TESTS One-way variance model hypothesis test, general linear model, and chi-squared test. RESULTS In the femoral articular cartilage of all athletes, we saw a global decrease in T2 and T1ρ relaxation times during the competitive season (all P < 0.05) and an increase in T2 and T1ρ relaxation times during the off-season (all P < 0.05). In the basketball players' femoral cartilage, the anterior and central compartments respectively had the highest T2 and T1ρ relaxation times following the competitive season and off-season. The basketball players had significantly lower KOOS measures in every domain compared with the swimmers: Pain (P < 0.05), Symptoms (P < 0.05), Function in Daily Living (P < 0.05), Function in Sport/Recreation (P < 0.05), and Quality of Life (P < 0.05). CONCLUSION Our results indicate that T2 and T1ρ MRI can detect significant seasonal changes in the articular cartilage of basketball players and that there are regional differences in the articular cartilage that are indicative of basketball-specific stress on the femoral cartilage. This study demonstrates the potential of quantitative MRI to monitor global and regional cartilage health in athletes at risk of developing cartilage problems. LEVEL OF EVIDENCE 2 Technical Efficacy Stage: 2.
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Affiliation(s)
- Elka B Rubin
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, California, USA.,Musculoskeletal Research Laboratory, VA Palo Alto Healthcare System, Palo Alto, California, USA
| | - Marianne S Black
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Katherine Young
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Arjun D Desai
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Matthew F Koff
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
| | - Ashwin Sreedhar
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Marc R Safran
- Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA
| | - Dominic J Vincentini
- Stanford Department of Athletics, Stanford University, Stanford, California, USA
| | - Katelin A Knox
- Stanford Department of Athletics, Stanford University, Stanford, California, USA
| | - Tomoo Yamada
- Stanford Department of Athletics, Stanford University, Stanford, California, USA
| | - Andrew McCabe
- Santa Clara Department of Athletics, Santa Clara University, Santa Clara, California, USA
| | - Sharmila Majumdar
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Hollis G Potter
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA
| | - Garry E Gold
- Department of Radiology, Stanford University, Stanford, California, USA
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16
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Mazzoli V, Moulin K, Kogan F, Hargreaves BA, Gold GE. Diffusion Tensor Imaging of Skeletal Muscle Contraction Using Oscillating Gradient Spin Echo. Front Neurol 2021; 12:608549. [PMID: 33658976 PMCID: PMC7917051 DOI: 10.3389/fneur.2021.608549] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/08/2021] [Indexed: 01/01/2023] Open
Abstract
Diffusion tensor imaging (DTI) measures water diffusion in skeletal muscle tissue and allows for muscle assessment in a broad range of neuromuscular diseases. However, current DTI measurements, typically performed using pulsed gradient spin echo (PGSE) diffusion encoding, are limited to the assessment of non-contracted musculature, therefore providing limited insight into muscle contraction mechanisms and contraction abnormalities. In this study, we propose the use of an oscillating gradient spin echo (OGSE) diffusion encoding strategy for DTI measurements to mitigate the effect of signal voids in contracted muscle and to obtain reliable diffusivity values. Two OGSE sequences with encoding frequencies of 25 and 50 Hz were tested in the lower leg of five healthy volunteers with relaxed musculature and during active dorsiflexion and plantarflexion, and compared with a conventional PGSE approach. A significant reduction of areas of signal voids using OGSE compared with PGSE was observed in the tibialis anterior for the scans obtained in active dorsiflexion and in the soleus during active plantarflexion. The use of PGSE sequences led to unrealistically elevated axial diffusivity values in the tibialis anterior during dorsiflexion and in the soleus during plantarflexion, while the corresponding values obtained using the OGSE sequences were significantly reduced. Similar findings were seen for radial diffusivity, with significantly higher diffusivity measured in plantarflexion in the soleus muscle using the PGSE sequence. Our preliminary results indicate that DTI with OGSE diffusion encoding is feasible in human musculature and allows to quantitatively assess diffusion properties in actively contracting skeletal muscle. OGSE holds great potential to assess microstructural changes occurring in the skeletal muscle during contraction, and for non-invasive assessment of contraction abnormalities in patients with muscle diseases.
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Affiliation(s)
- Valentina Mazzoli
- Department of Radiology, Stanford University, Stanford, CA, United States
| | - Kevin Moulin
- Department of Radiology, Stanford University, Stanford, CA, United States
| | - Feliks Kogan
- Department of Radiology, Stanford University, Stanford, CA, United States
| | - Brian A Hargreaves
- Department of Radiology, Stanford University, Stanford, CA, United States
| | - Garry E Gold
- Department of Radiology, Stanford University, Stanford, CA, United States
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17
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Watkins LE, Rubin EB, Mazzoli V, Uhlrich SD, Desai AD, Black M, Ho GK, Delp SL, Levenston ME, Beaupré GS, Gold GE, Kogan F. Rapid volumetric gagCEST imaging of knee articular cartilage at 3 T: evaluation of improved dynamic range and an osteoarthritic population. NMR Biomed 2020; 33:e4310. [PMID: 32445515 PMCID: PMC7347437 DOI: 10.1002/nbm.4310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 03/03/2020] [Accepted: 03/20/2020] [Indexed: 05/22/2023]
Abstract
Chemical exchange saturation transfer of glycosaminoglycans, gagCEST, is a quantitative MR technique that has potential for assessing cartilage proteoglycan content at field strengths of 7 T and higher. However, its utility at 3 T remains unclear. The objective of this work was to implement a rapid volumetric gagCEST sequence with higher gagCEST asymmetry at 3 T to evaluate its sensitivity to osteoarthritic changes in knee articular cartilage and in comparison with T2 and T1ρ measures. We hypothesize that gagCEST asymmetry at 3 T decreases with increasing severity of osteoarthritis (OA). Forty-two human volunteers, including 10 healthy subjects and 32 subjects with medial OA, were included in the study. Knee Injury and Osteoarthritis Outcome Scores (KOOS) were assessed for all subjects, and Kellgren-Lawrence grading was performed for OA volunteers. Healthy subjects were scanned consecutively at 3 T to assess the repeatability of the volumetric gagCEST sequence at 3 T. For healthy and OA subjects, gagCEST asymmetry and T2 and T1ρ relaxation times were calculated for the femoral articular cartilage to assess sensitivity to OA severity. Volumetric gagCEST imaging had higher gagCEST asymmetry than single-slice acquisitions (p = 0.015). The average scan-rescan coefficient of variation was 6.8%. There were no significant differences in average gagCEST asymmetry between younger and older healthy controls (p = 0.655) or between healthy controls and OA subjects (p = 0.310). T2 and T1ρ relaxation times were elevated in OA subjects (p < 0.001 for both) compared with healthy controls and both were moderately correlated with total KOOS scores (rho = -0.181 and rho = -0.332 respectively). The gagCEST technique developed here, with volumetric scan times under 10 min and high gagCEST asymmetry at 3 T, did not vary significantly between healthy subjects and those with mild-moderate OA. This further supports a limited utility for gagCEST imaging at 3 T for assessment of early changes in cartilage composition in OA.
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Affiliation(s)
| | - Elka B Rubin
- Radiology, Stanford University, Stanford, California, USA
| | | | - Scott D Uhlrich
- Mechanical Engineering, Stanford University, Stanford, California, USA
| | - Arjun D Desai
- Electrical Engineering, Stanford University, Stanford, California, USA
| | - Marianne Black
- Radiology, Stanford University, Stanford, California, USA
- Mechanical Engineering, Stanford University, Stanford, California, USA
| | - Gabe K Ho
- Bioengineering, Stanford University, Stanford, California, USA
| | - Scott L Delp
- Bioengineering, Stanford University, Stanford, California, USA
- Mechanical Engineering, Stanford University, Stanford, California, USA
- Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Marc E Levenston
- Bioengineering, Stanford University, Stanford, California, USA
- Mechanical Engineering, Stanford University, Stanford, California, USA
| | - Gary S Beaupré
- Bioengineering, Stanford University, Stanford, California, USA
- Veteran Affairs Palo Alto Health Care System, Palo Alto, California, USA
| | - Garry E Gold
- Bioengineering, Stanford University, Stanford, California, USA
- Radiology, Stanford University, Stanford, California, USA
- Orthopaedic Surgery, Stanford University, Stanford, California, USA
| | - Feliks Kogan
- Radiology, Stanford University, Stanford, California, USA
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Vompi C, Vernucci R, Costantini AM, Mazzoli V, Galluccio G, Silvestri A. Nahoum Index in Brachyfacial Patients: A Pilot Study. Turk J Orthod 2020; 33:98-102. [DOI: 10.5152/turkjorthod.2020.19033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 11/28/2019] [Indexed: 11/22/2022]
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19
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Barendregt AM, Mazzoli V, van Gulik EC, Schonenberg-Meinema D, Nassar-Sheikh Rashid A, Nusman CM, Dolman KM, van den Berg JM, Kuijpers TW, Nederveen AJ, Maas M, Hemke R. Juvenile Idiopathic Arthritis: Diffusion-weighted MRI in the Assessment of Arthritis in the Knee. Radiology 2020; 295:373-380. [PMID: 32154774 DOI: 10.1148/radiol.2020191685] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background Diffusion-weighted imaging (DWI) can depict the inflamed synovial membrane in arthritis. Purpose To study the diagnostic accuracy of DWI for the detection of arthritis compared with the clinical reference standard and to compare DWI to contrast material-enhanced MRI for the detection of synovial inflammation. Materials and Methods In this institutional review board-approved prospective study, 45 participants with juvenile idiopathic arthritis (JIA) or suspected of having JIA (seven boys, 38 girls; median age, 14 years [interquartile range, 12-16 years]) were included between December 2015 and December 2018. Study participants underwent pre- and postcontrast 3.0-T MRI of the knee with an additional DWI sequence. For the clinical reference standard, a multidisciplinary team determined the presence or absence of arthritis on the basis of clinical, laboratory, and imaging findings (excluding DWI). Two data sets were scored by two radiologists blinded to all clinical data; data set 1 contained pre- and postcontrast sequences (contrast-enhanced MRI), and data set 2 contained precontrast and DWI sequences (DWI). Diagnostic accuracy was determined by comparing the scores of the DWI data set to those of the clinical reference standard. Second, DWI was compared with contrast-enhanced MRI regarding detection of synovial inflammation. Results Sensitivity for detection of arthritis for DWI was 93% (13 of the 14 participants with arthritis were correctly classified with DWI; 95% confidence interval [CI]: 64%, 100%) and specificity was 81% (25 of 31 participants without arthritis were correctly classified with DWI; 95% CI: 62%, 92%). Scores for synovial inflammation at DWI and contrast-enhanced MRI agreed in 37 of 45 participants (82%), resulting in a sensitivity of 92% (12 of 13 participants; 95% CI: 62%, 100%) and specificity of 78% (25 of 32 participants; 95% CI: 60%, 90%) with DWI when contrast-enhanced MRI was considered the reference standard. Conclusion Diffusion-weighted imaging (DWI) was accurate in detecting arthritis in pediatric participants with juvenile idiopathic arthritis (JIA) or suspected of having JIA and showed agreement with contrast-enhanced MRI. The results indicate that DWI could replace contrast-enhanced MRI for imaging of synovial inflammation in this patient group. © RSNA, 2020 Online supplemental material is available for this article.
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Affiliation(s)
- Anouk M Barendregt
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Valentina Mazzoli
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - E Charlotte van Gulik
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Dieneke Schonenberg-Meinema
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Amara Nassar-Sheikh Rashid
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Charlotte M Nusman
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Koert M Dolman
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - J Merlijn van den Berg
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Taco W Kuijpers
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Aart J Nederveen
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Mario Maas
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
| | - Robert Hemke
- From the Department of Radiology and Nuclear Medicine (A.M.B., E.C.v.G., A.J.N., M.M., R.H.), Department of Pediatric Immunology, Rheumatology and Infectious Disease (A.M.B., E.C.v.G., D.S.M., A.N.S.a.R., J.M.v.d.B., T.W.K.), and Department of Pediatrics (C.M.N.), Amsterdam University Medical Centers, location AMC, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands; Department of Radiology, Lucas Center for Imaging, Stanford University, Stanford, Calif (V.M.); Department of Pediatric Rheumatology, Reade, Amsterdam, the Netherlands (K.M.D.); and Department of Pediatrics, Onze Lieve Vrouwe Gasthuis, Amsterdam, the Netherlands (K.M.D.)
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Kox LS, Kraan RBJ, Mazzoli V, Mens MA, Kerkhoffs GMJJ, Nederveen AJ, Maas M. It's a thin line: development and validation of Dixon MRI-based semi-quantitative assessment of stress-related bone marrow edema in the wrists of young gymnasts and non-gymnasts. Eur Radiol 2019; 30:1534-1543. [PMID: 31776745 PMCID: PMC7033069 DOI: 10.1007/s00330-019-06446-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 07/31/2019] [Accepted: 09/10/2019] [Indexed: 12/25/2022]
Abstract
Purpose To assess reliability and clinical utility of evaluating stress-related metaphyseal water distribution using a semi-quantitative Dixon MRI-based method for early diagnosis of physeal stress injuries in adolescent gymnasts. Methods Twenty-four gymnasts with clinically suspected overuse injury of the distal radial physis, 18 asymptomatic gymnasts, and 24 non-gymnast controls aged 12 ± 1.5 years prospectively underwent hand radiographs and 3T MRI of the wrist including coronal T1-weighted and T2-weighted Dixon sequences. Two raters measured metaphyseal water signal fraction in 13 radial and ulnar regions of interest (ROI). Inter- and intrarater reliability, interslice (between 3 middle radial slices), and inter-ROI (between 3 ROIs on same level) reliability were assessed using intraclass correlation coefficients (ICC). Water signal fractions and their within-person ratios in distal versus most proximal ROIs were compared between groups using one-way analysis of variance. Results Inter- and intrarater ICCs were 0.79–0.99 and 0.94–1.0 for T1-weighted, and 0.88–1.0 and 0.88–1.0 for T2-weighted Dixon. Interslice and inter-ROI ICCs were 0.55–0.94 and 0.95–0.97 for T1-weighted, and 0.70–0.96 and 0.96–0.97 for T2-weighted Dixon. Metaphyseal water signal fraction in symptomatic gymnasts was higher in six distal ROIs compared with asymptomatic gymnasts and in nine ROIs compared with non-gymnasts (p < 0.05). Metaphyseal water score (ratio of distal versus most proximal ROIs) was 1.61 in symptomatic gymnasts and 1.35 in asymptomatic gymnasts on T2-weighted Dixon (p < 0.05). Conclusion Semi-quantitative Dixon MRI-based water signal fraction assessment has good to excellent reproducibility and shows increased metaphyseal water scores in symptomatic gymnasts compared with asymptomatic gymnastic peers. Key Points • The proposed Dixon MRI-based semi-quantitative method for assessment of metaphyseal bone marrow water content is reliable, with off-the-shelf availability and short scan times. • The metaphyseal water score allows comparisons between gymnasts using a within-person reference area for unaffected metaphyseal bone. • As metaphyseal water score was increased in symptomatic gymnasts compared with asymptomatic gymnasts, this semi-quantitative method can potentially be used as an indicator of bone marrow edema in the early diagnosis of gymnastic physeal stress injury. Electronic supplementary material The online version of this article (10.1007/s00330-019-06446-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- L S Kox
- Department of Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, G1-229, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.,Academic Center for Evidence-based Sports medicine (ACES), Amsterdam, The Netherlands.,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC), Research Center AMC/VUmc, Amsterdam, The Netherlands
| | - R B J Kraan
- Department of Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, G1-229, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands. .,Academic Center for Evidence-based Sports medicine (ACES), Amsterdam, The Netherlands. .,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC), Research Center AMC/VUmc, Amsterdam, The Netherlands.
| | - V Mazzoli
- Department of Radiology, Stanford University, Stanford, CA, USA
| | - M A Mens
- Department of Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, G1-229, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - G M J J Kerkhoffs
- Academic Center for Evidence-based Sports medicine (ACES), Amsterdam, The Netherlands.,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC), Research Center AMC/VUmc, Amsterdam, The Netherlands.,Department of Orthopedic Surgery, Amsterdam UMC, location AMC, Amsterdam, The Netherlands
| | - A J Nederveen
- Department of Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, G1-229, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - M Maas
- Department of Radiology and Nuclear Medicine, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam UMC, location AMC, G1-229, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.,Academic Center for Evidence-based Sports medicine (ACES), Amsterdam, The Netherlands.,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), International Olympic Committee (IOC), Research Center AMC/VUmc, Amsterdam, The Netherlands
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21
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Galluccio G, Mazzoli V, Vernucci R, Silvestri A, Barbato E. Neonatal Functional Treatment for Pierre Robin Sequence. Turk J Orthod 2019; 32:151-159. [PMID: 31565690 DOI: 10.5152/turkjorthod.2019.18057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 12/25/2018] [Indexed: 12/22/2022]
Abstract
Objective Pierre Robin Sequence (PRS) is a heterogeneous pathological condition characterized by the coexistence of micrognathia, glossoptosis, and cleft palate, resulting in upper airway tract obstruction. Among the treatment modalities, the orthodontic approach is one part of the comprehensive care of those patients and will be present in the treatment modalities during all the growth period of the child. Methods All patients with PRS observed in the period 2013-2017 were treated with a definite functional approach. The results were retrospectively analyzed with regard to functional outcome, total treatment time, and number of plates provided for a single patient. Results In all the patients, the indicated treatment protocol has been applied as early impression and plate supply, stimulation of bottle feeding with the use of the plate, eventual substitution of the plate if no more adequate to the transverse and sagittal growth of the palate, and continuing the use until the surgical closure of the cleft. All the patients showed a positive outcome to the proposed treatment approach, evaluated with regard to the incidence of feeding improvement and weight gain, to the limit for the surgical phase, in the absence of adverse effects. Conclusion The use of a functional obturator plate, removing functional alterations to mandibular growth, reduces and, in some cases, eliminates the need for surgical intervention. As also stated in the literature, if despite the presence of the plate nutritional problems persist, immediate different surgical approaches, mainly mandibular osteodistraction, become necessary.
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Affiliation(s)
- Gabriella Galluccio
- Department of Orthodontics and Maxillofacial Surgery, Sapienza University of Rome School of Dentistry, Rome, Italy
| | - Valentina Mazzoli
- Department of Orthodontics and Maxillofacial Surgery, Sapienza University of Rome School of Dentistry, Rome, Italy
| | - Roberto Vernucci
- Department of Orthodontics and Maxillofacial Surgery, Sapienza University of Rome School of Dentistry, Rome, Italy
| | - Alessandro Silvestri
- Department of Orthodontics and Maxillofacial Surgery, Sapienza University of Rome School of Dentistry, Rome, Italy
| | - Ersilia Barbato
- Department of Orthodontics and Maxillofacial Surgery, Sapienza University of Rome School of Dentistry, Rome, Italy
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22
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Naghibi H, Mazzoli V, Gijsbertse K, Hannink G, Sprengers A, Janssen D, Van den Boogaard T, Verdonschot N. A noninvasive MRI based approach to estimate the mechanical properties of human knee ligaments. J Mech Behav Biomed Mater 2019; 93:43-51. [PMID: 30769233 DOI: 10.1016/j.jmbbm.2019.01.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 01/03/2019] [Accepted: 01/30/2019] [Indexed: 01/31/2023]
Abstract
Characterization of the main tibiofemoral ligaments is an essential step in developing patient-specific computational models of the knee joint for personalized surgery pre-planning. Tensile tests are commonly performed in-vitro to characterize the mechanical stiffness and rupture force of the knee ligaments which makes the technique unsuitable for in-vivo application. The time required for the limited noninvasive approaches for properties estimation based on knee laxity remained the main obstacle in clinical implementation. Magnetic resonance imaging (MRI) technique can be a platform to noninvasively assess the knee ligaments. In this study the aim was to explore the potential role of quantitative MRI and dimensional properties, in characterizing the mechanical properties of the main tibiofemoral ligaments. After MR scanning of six cadaveric legs, all 24 main tibiofemoral bone-ligaments-bone specimens were tested in vitro. During the tensile test cross sectional area of the specimens was captured using ultrasound and force-displacement curve was extracted. Digital image correlation technique was implemented to check the strain behavior of the specimen and rupture region and to assure the fixation of ligament bony block during the test. The volume of the specimen was measured using manual segmentation data, and quantitative MR parameters as T2*, T1ρ, and T2 were calculated. Linear mixed statistical models for repeated measures were used to examine the association of MRI parameters and dimensional measurements with the mechanical properties (stiffness and rupture force). The results shows that while the mechanical properties were mostly correlated to the volume, inclusion of the MR parameters increased the correlation strength for stiffness (R2 ≈ 0.48) and partial rupture force (R2 = 0.53). Inclusion of ligament type in the statistical analysis enhanced the correlation of mechanical properties with MR parameters and volume as for stiffness (R2 = 0.60) and partial rupture (R2 = 0.57). In conclusion, this study revealed the potentials in using quantitative MR parameters, T1ρ, T2 and T2*, combined with specimen volume to estimate the essential mechanical properties of all main tibiofemoral ligaments required for subject-specific computational modeling of human knee joint.
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Affiliation(s)
- Hamid Naghibi
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands; Robotics and Mechatronics Group, The Faculty of Electrical Engineering Mathematics and Computer Science, Technical Medical Centre, University of Twente, Enschede, the Netherlands.
| | - Valentina Mazzoli
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Radiology, Stanford University, Stanford, CA, USA
| | - Kaj Gijsbertse
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Gerjon Hannink
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Andre Sprengers
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Dennis Janssen
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Ton Van den Boogaard
- Nonlinear Solid Mechanics, Faculty of Engineering Technology, University of Twente, Enschede, the Netherlands
| | - Nico Verdonschot
- Orthopaedic Research Lab, Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, the Netherlands; Laboratory of Biomechanical Engineering, University of Twente, Enschede, the Netherlands
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Voskuilen L, Mazzoli V, Oudeman J, Balm AJM, van der Heijden F, Froeling M, de Win MML, Strijkers GJ, Smeele LE, Nederveen AJ. Crossing muscle fibers of the human tongue resolved in vivo using constrained spherical deconvolution. J Magn Reson Imaging 2019; 50:96-105. [PMID: 30648339 PMCID: PMC6617996 DOI: 10.1002/jmri.26609] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 11/26/2018] [Accepted: 11/27/2018] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Surgical resection of tongue cancer may impair swallowing and speech. Knowledge of tongue muscle architecture affected by the resection could aid in patient counseling. Diffusion tensor imaging (DTI) enables reconstructions of muscle architecture in vivo. Reconstructing crossing fibers in the tongue requires a higher-order diffusion model. PURPOSE To develop a clinically feasible diffusion imaging protocol, which facilitates both DTI and constrained spherical deconvolution (CSD) reconstructions of tongue muscle architecture in vivo. STUDY TYPE Cross-sectional study. SUBJECTS/SPECIMEN One ex vivo bovine tongue resected en bloc from mandible to hyoid bone. Ten healthy volunteers (mean age 25.5 years; range 21-34 years; four female). FIELD STRENGTH/SEQUENCE Diffusion-weighted echo planar imaging at 3 T using a high-angular resolution diffusion imaging scheme acquired twice with opposing phase-encoding for B0 -field inhomogeneity correction. The scan of the healthy volunteers was divided into four parts, in between which the volunteers were allowed to swallow, resulting in a total acquisition time of 10 minutes. ASSESSMENT The ability of resolving crossing muscle fibers using CSD was determined on the bovine tongue specimen. A reproducible response function was estimated and the optimal peak threshold was determined for the in vivo tongue. The quality of tractography of the in vivo tongue was graded by three experts. STATISTICAL TESTS The within-subject coefficient of variance was calculated for the response function. The qualitative results of the grading of DTI and CSD tractography were analyzed using a multilevel proportional odds model. RESULTS Fiber orientation distributions in the bovine tongue specimen showed that CSD was able to resolve crossing muscle fibers. The response function could be determined reproducibly in vivo. CSD tractography displayed significantly improved tractography compared with DTI tractography (P = 0.015). DATA CONCLUSION The 10-minute diffusion imaging protocol facilitates CSD fiber tracking with improved reconstructions of crossing tongue muscle fibers compared with DTI. LEVEL OF EVIDENCE 2 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2019;50:96-105.
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Affiliation(s)
- Luuk Voskuilen
- Department of Head and Neck Oncology and Surgery, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands.,Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Department of Oral and Maxillofacial Surgery, Academic Centre for Dentistry Amsterdam and Amsterdam UMC, University of Amsterdam and VU University Amsterdam, Amsterdam, Netherlands
| | | | - Jos Oudeman
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Alfons J M Balm
- Department of Head and Neck Oncology and Surgery, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands.,Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands.,Department of Robotics and Mechatronics, MIRA Institute, University of Twente, Enschede, Netherlands
| | - Ferdinand van der Heijden
- Department of Head and Neck Oncology and Surgery, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands.,Department of Robotics and Mechatronics, MIRA Institute, University of Twente, Enschede, Netherlands
| | - Martijn Froeling
- Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands
| | - Maartje M L de Win
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Gustav J Strijkers
- Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Ludi E Smeele
- Department of Head and Neck Oncology and Surgery, Netherlands Cancer Institute, Antoni van Leeuwenhoek Hospital, Amsterdam, Netherlands.,Department of Oral and Maxillofacial Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
| | - Aart J Nederveen
- Department of Radiology and Nuclear Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, Netherlands
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Vernucci RA, Mazzoli V, Galluccio G, Silvestri A, Barbato E. Unilateral hemimandibular hyperactivity: Clinical features of a population of 128 patients. J Craniomaxillofac Surg 2018; 46:1105-1110. [DOI: 10.1016/j.jcms.2018.04.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/05/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022] Open
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Nelissen JL, Traa WA, de Boer HH, de Graaf L, Mazzoli V, Savci-Heijink CD, Nicolay K, Froeling M, Bader DL, Nederveen AJ, Oomens CWJ, Strijkers GJ. An advanced magnetic resonance imaging perspective on the etiology of deep tissue injury. J Appl Physiol (1985) 2018; 124:1580-1596. [DOI: 10.1152/japplphysiol.00891.2017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Early diagnosis of deep tissue injury remains problematic due to the complicated and multifactorial nature of damage induction and the many processes involved in damage development and recovery. In this paper, we present a comprehensive assessment of deep tissue injury development and remodeling in a rat model by multiparametric magnetic resonance imaging (MRI) and histopathology. The tibialis anterior muscle of rats was subjected to mechanical deformation for 2 h. Multiparametric in vivo MRI, consisting of T2, T2*, mean diffusivity (MD), and angiography measurements, was applied before, during, and directly after indentation as well as at several time points during a 14-day follow-up. MRI readouts were linked to histological analyses of the damaged tissue. The results showed dynamic change in various MRI parameters, reflecting the histopathological status of the tissue during damage induction and repair. Increased T2 corresponded with edema, muscle cell damage, and inflammation. T2* was related to tissue perfusion, hemorrhage, and inflammation. MD increase and decrease was reported on the tissue’s microstructural integrity and reflected muscle degeneration and edema as well as fibrosis. Angiography provided information on blockage of blood flow during deformation. Our results indicate that the effects of a single damage-causing event of only 2 h of deformation were present up to 14 days. The initial tissue response to deformation, as observed by MRI, starts at the edge of the indentation. The quantitative MRI readouts provided distinct and complementary information on the extent, temporal evolution, and microstructural basis of deep tissue injury-related muscle damage. NEW & NOTEWORTHY We have applied a multiparametric MRI approach linked to histopathology to characterize damage development and remodeling in a rat model of deep tissue injury. Our approach provided several relevant insights in deep tissue injury. Response to damage, as observed by MRI, started at some distance from the deformation. Damage after a single indentation period persisted up to 14 days. The MRI parameters provided distinct and complementary information on the microstructural basis of the damage.
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Affiliation(s)
- Jules L. Nelissen
- Biomedical NMR, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands
| | - Willeke A. Traa
- Soft Tissue Engineering and Mechanobiology, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Hans H. de Boer
- Department of Pathology, Academic Medical Center, Amsterdam, The Netherlands
| | - Larry de Graaf
- Biomedical NMR, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Valentina Mazzoli
- Biomedical NMR, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Department of Radiology and Nuclear Medicine, Academic Medical Center, Amsterdam, The Netherlands
- Orthopedic Research Laboratory, Radboud UMC, Nijmegen, The Netherlands
| | | | - Klaas Nicolay
- Biomedical NMR, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Martijn Froeling
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Dan L. Bader
- Soft Tissue Engineering and Mechanobiology, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Department of Health Sciences, University of Southampton, Southampton, United Kingdom
| | - Aart J. Nederveen
- Department of Radiology and Nuclear Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - Cees W. J. Oomens
- Soft Tissue Engineering and Mechanobiology, Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Gustav J. Strijkers
- Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, The Netherlands
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26
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Mazzoli V, Gottwald LM, Peper ES, Froeling M, Coolen BF, Verdonschot N, Sprengers AM, Ooij P, Strijkers GJ, Nederveen AJ. Accelerated 4
D
phase contrast
MRI
in skeletal muscle contraction. Magn Reson Med 2018; 80:1799-1811. [DOI: 10.1002/mrm.27158] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 01/15/2018] [Accepted: 02/06/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Valentina Mazzoli
- Department of RadiologyAcademic Medical CenterAmsterdam The Netherlands
- Biomedical NMR, Department of Biomedical EngineeringEindhoven University of TechnologyEindhoven The Netherlands
- Orthopaedic Research LabRadboud UMCNijmegen The Netherlands
| | - Lukas M. Gottwald
- Department of RadiologyAcademic Medical CenterAmsterdam The Netherlands
| | - Eva S. Peper
- Department of RadiologyAcademic Medical CenterAmsterdam The Netherlands
| | - Martijn Froeling
- Department of RadiologyUniversity Medical Center UtrechtUtrecht The Netherlands
| | - Bram F. Coolen
- Biomedical Engineering and PhysicsAcademic Medical CenterAmsterdam The Netherlands
| | - Nico Verdonschot
- Orthopaedic Research LabRadboud UMCNijmegen The Netherlands
- Laboratory for Biomechanical EngineeringUniversity of TwenteEnschede The Netherlands
| | - Andre M. Sprengers
- Orthopaedic Research LabRadboud UMCNijmegen The Netherlands
- Laboratory for Biomechanical EngineeringUniversity of TwenteEnschede The Netherlands
| | - Pim Ooij
- Department of RadiologyAcademic Medical CenterAmsterdam The Netherlands
| | - Gustav J. Strijkers
- Biomedical NMR, Department of Biomedical EngineeringEindhoven University of TechnologyEindhoven The Netherlands
- Biomedical Engineering and PhysicsAcademic Medical CenterAmsterdam The Netherlands
| | - Aart J. Nederveen
- Department of RadiologyAcademic Medical CenterAmsterdam The Netherlands
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27
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Oudeman J, Mazzoli V, Marra MA, Nicolay K, Maas M, Verdonschot N, Sprengers AM, Nederveen AJ, Strijkers GJ, Froeling M. A novel diffusion-tensor MRI approach for skeletal muscle fascicle length measurements. Physiol Rep 2017; 4:4/24/e13012. [PMID: 28003562 PMCID: PMC5210383 DOI: 10.14814/phy2.13012] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 09/26/2016] [Indexed: 12/29/2022] Open
Abstract
Musculoskeletal (dys‐)function relies for a large part on muscle architecture which can be obtained using Diffusion‐Tensor MRI (DT‐MRI) and fiber tractography. However, reconstructed tracts often continue along the tendon or aponeurosis when using conventional methods, thus overestimating fascicle lengths. In this study, we propose a new method for semiautomatic segmentation of tendinous tissue using tract density (TD). We investigated the feasibility and repeatability of this method to quantify the mean fascicle length per muscle. Additionally, we examined whether the method facilitates measuring changes in fascicle length of lower leg muscles with different foot positions. Five healthy subjects underwent two DT‐MRI scans of the right lower leg, with the foot in 15° dorsiflexion, neutral, and 30° plantarflexion positions. Repeatability of fascicle length measurements was assessed using Bland–Altman analysis. Changes in fascicle lengths between the foot positions were tested using a repeated multivariate analysis of variance (MANOVA). Bland–Altman analysis showed good agreement between repeated measurements. The coefficients of variation in neutral position were 8.3, 16.7, 11.2, and 10.4% for soleus (SOL), fibularis longus (FL), extensor digitorum longus (EDL), and tibialis anterior (TA), respectively. The plantarflexors (SOL and FL) showed significant increase in fascicle length from plantarflexion to dorsiflexion, whereas the dorsiflexors (EDL and TA) exhibited a significant decrease. The use of a tract density for semiautomatic segmentation of tendinous structures provides more accurate estimates of the mean fascicle length than traditional fiber tractography methods. The method shows moderate to good repeatability and allows for quantification of changes in fascicle lengths due to passive stretch.
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Affiliation(s)
- Jos Oudeman
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Valentina Mazzoli
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands.,Orthopedic Research Lab, Radboud UMC, Nijmegen, the Netherlands.,Biomedical NMR, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Marco A Marra
- Orthopedic Research Lab, Radboud UMC, Nijmegen, the Netherlands
| | - Klaas Nicolay
- Biomedical NMR, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Mario Maas
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Nico Verdonschot
- Orthopedic Research Lab, Radboud UMC, Nijmegen, the Netherlands.,Laboratory of Biomechanical Engineering, University of Twente, Enschede, the Netherlands
| | - Andre M Sprengers
- Orthopedic Research Lab, Radboud UMC, Nijmegen, the Netherlands.,Laboratory of Biomechanical Engineering, University of Twente, Enschede, the Netherlands
| | - Aart J Nederveen
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Gustav J Strijkers
- Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, the Netherlands
| | - Martijn Froeling
- Department of Radiology, University Medical Center, Utrecht, the Netherlands
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28
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Mazzoli V, Schoormans J, Froeling M, Sprengers AM, Coolen BF, Verdonschot N, Strijkers GJ, Nederveen AJ. Accelerated 4D self-gated MRI of tibiofemoral kinematics. NMR Biomed 2017; 30:e3791. [PMID: 28873255 DOI: 10.1002/nbm.3791] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/17/2017] [Accepted: 07/19/2017] [Indexed: 06/07/2023]
Abstract
Anatomical (static) magnetic resonance imaging (MRI) is the most useful imaging technique for the evaluation and assessment of internal derangement of the knee, but does not provide dynamic information and does not allow the study of the interaction of the different tissues during motion. As knee pain is often only experienced during dynamic tasks, the ability to obtain four-dimensional (4D) images of the knee during motion could improve the diagnosis and provide a deeper understanding of the knee joint. In this work, we present a novel approach for dynamic, high-resolution, 4D imaging of the freely moving knee without the need for external triggering. The dominant knee of five healthy volunteers was scanned during a flexion/extension task. To evaluate the effects of non-uniform motion and poor coordination skills on the quality of the reconstructed images, we performed a comparison between fully free movement and movement instructed by a visual cue. The trigger signal for self-gating was extracted using principal component analysis (PCA), and the images were reconstructed using a parallel imaging and compressed sensing reconstruction pipeline. The reconstructed 4D movies were scored for image quality and used to derive bone kinematics through image registration. Using our method, we were able to obtain 4D high-resolution movies of the knee without the need for external triggering hardware. The movies obtained with and without instruction did not differ significantly in terms of image scoring and quantitative values for tibiofemoral kinematics. Our method showed to be robust for the extraction of the self-gating signal even for uninstructed motion. This can make the technique suitable for patients who, as a result of pain, may find it difficult to comply exactly with instructions. Furthermore, bone kinematics can be derived from accelerated MRI without the need for additional hardware for triggering.
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Affiliation(s)
- Valentina Mazzoli
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
- Orthopedic Research Laboratory, Radboud University Medical Center, Nijmegen, the Netherlands
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Jasper Schoormans
- Department of Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, the Netherlands
| | - Martijn Froeling
- Department of Radiology, University Medical Center, Utrecht, the Netherlands
| | - Andre M Sprengers
- Orthopedic Research Laboratory, Radboud University Medical Center, Nijmegen, the Netherlands
- Laboratory for Biomechanical Engineering, University of Twente, Enschede, the Netherlands
| | - Bram F Coolen
- Department of Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, the Netherlands
| | - Nico Verdonschot
- Orthopedic Research Laboratory, Radboud University Medical Center, Nijmegen, the Netherlands
- Laboratory for Biomechanical Engineering, University of Twente, Enschede, the Netherlands
| | - Gustav J Strijkers
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
- Department of Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, the Netherlands
| | - Aart J Nederveen
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
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29
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Mazzoli V, Oudeman J, Nicolay K, Maas M, Verdonschot N, Sprengers AM, Nederveen AJ, Froeling M, Strijkers GJ. Assessment of passive muscle elongation using Diffusion Tensor MRI: Correlation between fiber length and diffusion coefficients. NMR Biomed 2016; 29:1813-1824. [PMID: 27862471 DOI: 10.1002/nbm.3661] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 06/06/2023]
Abstract
In this study we investigated the changes in fiber length and diffusion parameters as a consequence of passive lengthening and stretching of the calf muscles. We hypothesized that changes in radial diffusivity (RD) are caused by changes in the muscle fiber cross sectional area (CSA) as a consequence of lengthening and shortening of the muscle. Diffusion Tensor MRI (DT-MRI) measurements were made twice in five healthy volunteers, with the foot in three different positions (30° plantarflexion, neutral position and 15° dorsiflexion). The muscles of the calf were manually segmented on co-registered high resolution anatomical scans, and maps of RD and axial diffusivity (AD) were reconstructed from the DT-MRI data. Fiber tractography was performed and mean fiber length was calculated for each muscle group. Significant negative correlations were found between the changes in RD and changes in fiber length in the dorsiflexed and plantarflexed positions, compared with the neutral foot position. Changes in AD did not correlate with changes in fiber length. Assuming a simple cylindrical model with constant volume for the muscle fiber, the changes in the muscle fiber CSA were calculated from the changes in fiber length. In line with our hypothesis, we observed a significant positive correlation of the CSA with the measured changes in RD. In conclusion, we showed that changes in diffusion coefficients induced by passive muscle stretching and lengthening can be explained by changes in muscle CSA, advancing the physiological interpretation of parameters derived from skeletal muscle DT-MRI.
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Affiliation(s)
- Valentina Mazzoli
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
- Orthopedic Research Laboratory, Radboud UMC, Nijmegen, the Netherlands
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Jos Oudeman
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Klaas Nicolay
- Biomedical NMR, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Mario Maas
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Nico Verdonschot
- Orthopedic Research Laboratory, Radboud UMC, Nijmegen, the Netherlands
| | - Andre M Sprengers
- Orthopedic Research Laboratory, Radboud UMC, Nijmegen, the Netherlands
| | - Aart J Nederveen
- Department of Radiology, Academic Medical Center, Amsterdam, the Netherlands
| | - Martijn Froeling
- Department of Radiology, University Medical Center, Utrecht, the Netherlands
| | - Gustav J Strijkers
- Biomedical Engineering and Physics, Academic Medical Center, Amsterdam, the Netherlands
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30
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Mazzoli V, Nederveen AJ, Oudeman J, Sprengers A, Nicolay K, Strijkers GJ, Verdonschot N. Water and fat separation in real-time MRI of joint movement with phase-sensitive bSSFP. Magn Reson Med 2016; 78:58-68. [DOI: 10.1002/mrm.26341] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 06/20/2016] [Accepted: 06/20/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Valentina Mazzoli
- Biomedical NMR, Department of Biomedical Engineering; Eindhoven University of Technology; Eindhoven The Netherlands
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
- Orthopaedic Research Lab; Radboud University Medical Center; Nijmegen The Netherlands
| | - Aart J. Nederveen
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
| | - Jos Oudeman
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
| | - Andre Sprengers
- Orthopaedic Research Lab; Radboud University Medical Center; Nijmegen The Netherlands
- Laboratory of Biomechanical Engineering; University of Twente; Enschede The Netherlands
| | - Klaas Nicolay
- Biomedical NMR, Department of Biomedical Engineering; Eindhoven University of Technology; Eindhoven The Netherlands
| | - Gustav J. Strijkers
- Biomedical NMR, Department of Biomedical Engineering; Eindhoven University of Technology; Eindhoven The Netherlands
- Biomedical Engineering and Physics; Academic Medical Center; Amsterdam The Netherlands
| | - Nico Verdonschot
- Orthopaedic Research Lab; Radboud University Medical Center; Nijmegen The Netherlands
- Laboratory of Biomechanical Engineering; University of Twente; Enschede The Netherlands
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31
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Oudeman J, Coolen BF, Mazzoli V, Maas M, Verhamme C, Brink WM, Webb AG, Strijkers GJ, Nederveen AJ. Diffusion-prepared neurography of the brachial plexus with a large field-of-view at 3T. J Magn Reson Imaging 2015; 43:644-54. [DOI: 10.1002/jmri.25025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 07/22/2015] [Indexed: 12/20/2022] Open
Affiliation(s)
- Jos Oudeman
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
| | - Bram F. Coolen
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
| | - Valentina Mazzoli
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
- Biomedical NMR; Department of Biomedical Engineering; Eindhoven University of Technology; Nijmegen The Netherlands
- Orthopaedic Research Lab; Radboud University Medical Center; Nijmegen The Netherlands
| | - Mario Maas
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
| | - Camiel Verhamme
- Department of Neurology; Academic Medical Center; Amsterdam The Netherlands
| | - Wyger M. Brink
- Department of Radiology; Leiden University Medical Center; Leiden The Netherlands
| | - Andrew G. Webb
- Department of Radiology; Leiden University Medical Center; Leiden The Netherlands
| | - Gustav J. Strijkers
- Biomedical NMR; Department of Biomedical Engineering; Eindhoven University of Technology; Nijmegen The Netherlands
- Biomedical Engineering and Physics; Academic Medical Center; Amsterdam The Netherlands
| | - Aart J. Nederveen
- Department of Radiology; Academic Medical Center; Amsterdam The Netherlands
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33
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Tincani E, Mazzoli V, Bondi M. [Management of acute myocardial infarction in the experience of a community hospital. A prospective study]. Minerva Cardioangiol 1997; 45:335-47. [PMID: 9463169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIM The capacity of the results of clinical studies to lead to changes in clinical practice is controversial. The treatment of elderly patients with acute myocardial infarction (AMI) represents an increasingly important challenge for the physician. The decreasing mortality rate for AMI in the general population is countered by an increasingly high mortality rate among the elderly. The aim of this prospective study was to evaluate the impact of the results of clinical studies on the treatment of AMI in community hospitals, and to highlight any differences in treatment and prognosis depending on age. MATERIALS AND METHODS 123 patients with AMI were divided into two groups: (1) young patients (61.2%) aged under 75 (76 patients of whom 64 were male, with a mean age of 61.08 +/- 9.63) and (2) elderly patients (38.8%) aged over 75 (47 patients of whom 26 were male, with a mean age of 81.77 +/- 3.94). All patients were monitored for at least 12 months after discharge. RESULTS The percentage administration of fibrinolytics (60.5%), aspirin (80.3%), beta-blockers (oral 40.8%; i.v. 32.9%) and anticoagulants (97.4%) showed that young patients were treated according to the indications reported in the literature. Thrombolysis was more frequently performed in young patients than in the aged (60.5% vs 10.6%; p = 0.0001). Multiple logistic regression analysis showed that age, Killip's class and time at hospitalization were variables predicting the exclusion from fibrinolysis. During hospitalization the elderly group received oral beta-blockers less frequently (8.5% vs 40.8%; p = 0.0001); on discharge, they less frequently received ACE-inhibitors (14.9% vs 46.1%; p = 0.0004), aspirin (48.9% vs 77.6%; p = 0.001), beta-blockers (12.8% vs 44.7%; p = 0.0002). The elderly group revealed a higher mortality rate both during hospitalization (19.1% vs 3.9%; p = 0.01) and follow-up (44.7% vs 11.0%; p = 0.0001). Multivariate analysis showed a direct correlation between ventricular arrhythmia and Killip's class and hospital mortality, whereas smoking and time at hospitalization were inversely correlated. Mortality during follow-up was directly associated with Killip's class and inversely to the use of ACE-inhibitors during hospitalization, and beta-blockers and diuretics on discharge. Kaplan-Meier analysis did not show any differences in the survival rate of the two groups, but the first year after AMI was particularly critical for elderly patients among whom 40% of all deaths were recorded. CONCLUSIONS This study confirms the application in clinical practice of the results of clinical studies also in community hospitals, and shows that elderly AMI patients are high-risk patients. The high mortality in the latter group is correlated to the fact that they are less eligible to undergo fibrinolytic therapy and have a lower probability of receiving drugs of proven efficacy as a means of increasing survival after AMI. Further clinical studies are required to reduce mortality after AMI in a population that is increasingly widely represented in community hospitals.
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Affiliation(s)
- E Tincani
- Unità di Terapia Medica Sub-Intensiva, Ospedale Civile di Castelfranco Emilia, Modena
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Mazzoli V, Malmusi A, Scalori G. [Congestive dilated cardiomyopathy. Clinical aspects]. G Clin Med 1985; 66:99-110. [PMID: 3896907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Mazzoli V, Malmusi A, Scalori G. [Reconversion of long-standing atrial flutter and fibrillation to sinus rhythm, with oral verapamil and digoxin. Description of 3 cases]. G Clin Med 1985; 66:57-61. [PMID: 4007343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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