1
|
Tan JY, Tan CY, Yahya MA, Shahrizaila N, Goh KJ. Evaluating disease status in idiopathic inflammatory myopathies with quantitative muscle ultrasound. Muscle Nerve 2024; 69:597-603. [PMID: 38488306 DOI: 10.1002/mus.28081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 02/22/2024] [Accepted: 03/02/2024] [Indexed: 04/07/2024]
Abstract
INTRODUCTION/AIMS Muscle strength, functional status, and muscle enzymes are conventionally used to evaluate disease status in idiopathic inflammatory myopathies (IIM). This study aims to investigate the role of quantitative muscle ultrasound in evaluating disease status in IIM patients. METHODS Patients with IIM, excluding inclusion body myositis, were recruited along with age- and sex-matched healthy controls (HC). All participants underwent muscle ultrasound and clinical assessments. Six limb muscles were unilaterally scanned using a standardized protocol, measuring muscle thickness (MT) and echo intensity (EI). Results were compared with HC, and correlations were made with outcome measures. RESULTS Twenty IIM patients and 24 HC were recruited. The subtypes of IIM were dermatomyositis (6), necrotizing myositis (6), polymyositis (3), antisynthetase syndrome (3), and nonspecific myositis (2). Mean disease duration was 8.7 ± 6.9 years. There were no significant differences in demographics and anthropometrics between patients and controls. MT of rectus femoris in IIM patients was significantly lower than HC. Muscle EI of biceps brachii and vastus medialis in IIM patients were higher than HC. There were moderate correlations between MT of rectus femoris and modified Rankin Scale, Physician Global Activity Assessment, and Health Assessment Questionnaire, as well as between EI of biceps brachii and Manual Muscle Testing-8. DISCUSSION Muscle ultrasound can detect proximal muscle atrophy and hyperechogenicity in patients with IIM. The findings correlate with clinical outcome measures, making it a potential tool for evaluating disease activity of patients with IIM in the late phase of the disease.
Collapse
Affiliation(s)
- Jie Ying Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Cheng Yin Tan
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohd Azly Yahya
- Neurophysiology Laboratory, University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Nortina Shahrizaila
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Khean Jin Goh
- Division of Neurology, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
2
|
Giraudo C, Fichera G, Pilati L, Cortinovis AL, Cavallin C, Bertin S, Zuliani M, Cecchin D. COVID-19 musculoskeletal involvement in children. Front Pediatr 2023; 11:1200877. [PMID: 37274814 PMCID: PMC10235627 DOI: 10.3389/fped.2023.1200877] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/03/2023] [Indexed: 06/07/2023] Open
Abstract
Since the early phases of the COVID-19 pandemic, it has become clear that children are affected by mild respiratory symptoms rather than the critical pneumonia typical in adults. Nevertheless, it took longer to understand that pediatric patients with SARS-COV2 may develop a severe multisystem inflammatory response (a.k.a. multisystem inflammatory syndrome in children (MIS-C)), which can include musculoskeletal symptoms, and/or arthritis and myositis independently from MIS-C. Diagnostic imaging significantly contributed to the assessment of pulmonary disease due to COVID-19 but it has been rarely applied to evaluate musculoskeletal involvement in children with or without previous rheumatic diseases. Despite the paucity of radiological literature, muscle edema at magnetic resonance and synovitis at ultrasound have been described. Further use of diagnostic imaging for children with articular and muscular symptoms due to COVID-19 is strongly encouraged.
Collapse
Affiliation(s)
- Chiara Giraudo
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Giulia Fichera
- Pediatric Radiology Unit, University Hospital of Padova, Padova, Italy
| | - Lucia Pilati
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | | | - Celeste Cavallin
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Sofia Bertin
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Monica Zuliani
- Pediatric Radiology Unit, University Hospital of Padova, Padova, Italy
| | - Diego Cecchin
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| |
Collapse
|
3
|
Zubair AS, Salam S, Dimachkie MM, Machado PM, Roy B. Imaging biomarkers in the idiopathic inflammatory myopathies. Front Neurol 2023; 14:1146015. [PMID: 37181575 PMCID: PMC10166883 DOI: 10.3389/fneur.2023.1146015] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 04/03/2023] [Indexed: 05/16/2023] Open
Abstract
Idiopathic inflammatory myopathies (IIMs) are a group of acquired muscle diseases with muscle inflammation, weakness, and other extra-muscular manifestations. IIMs can significantly impact the quality of life, and management of IIMs often requires a multi-disciplinary approach. Imaging biomarkers have become an integral part of the management of IIMs. Magnetic resonance imaging (MRI), muscle ultrasound, electrical impedance myography (EIM), and positron emission tomography (PET) are the most widely used imaging technologies in IIMs. They can help make the diagnosis and assess the burden of muscle damage and treatment response. MRI is the most widely used imaging biomarker of IIMs and can assess a large volume of muscle tissue but is limited by availability and cost. Muscle ultrasound and EIM are easy to administer and can even be performed in the clinical setting, but they need further validation. These technologies may complement muscle strength testing and laboratory studies and provide an objective assessment of muscle health in IIMs. Furthermore, this is a rapidly progressing field, and new advances are going to equip care providers with a better objective assessment of IIMS and eventually improve patient management. This review discusses the current state and future direction of imaging biomarkers in IIMs.
Collapse
Affiliation(s)
- Adeel S. Zubair
- Division of Neuromuscular Diseases, Department of Neurology, Yale University School of Medicine, New Haven, CT, United States
| | - Sharfaraz Salam
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
| | - Mazen M. Dimachkie
- Department of Neurology, The University of Kansas Medical Center, Kansas City, KS, United States
| | - Pedro M. Machado
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom
- Centre for Rheumatology, Division of Medicine, University College London, London, United Kingdom
| | - Bhaskar Roy
- Division of Neuromuscular Diseases, Department of Neurology, Yale University School of Medicine, New Haven, CT, United States
| |
Collapse
|
4
|
Zaottini F, Picasso R, Pistoia F, Sanguinetti S, Pansecchi M, Tovt L, Viglino U, Cabona C, Garnero M, Benedetti L, Martinoli C. High-resolution ultrasound of peripheral neuropathies in rheumatological patients: An overview of clinical applications and imaging findings. Front Med (Lausanne) 2022; 9:984379. [PMID: 36388946 PMCID: PMC9661426 DOI: 10.3389/fmed.2022.984379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Peripheral neuropathies are surprisingly common and can be associated with a number of conditions, including rheumatological diseases. Whether the co-existence of peripheral neuropathies with rheumatological disorders is coincidental or related to a common pathogenic mechanism, these disabling conditions can affect the outcome of rheumatological patients and should be targeted with specific treatment. The clinical presentation of peripheral neuropathy can be multifaceted and difficult to recognize in polysymptomatic patients. However, physicians adopting state-of-art diagnostic strategies, including nerve imaging, may improve the detection rate and management of neuropathies. In particular, a diagnostic approach relying exclusively on clinical history and nerve conduction studies may not be sufficient to disclose the etiology of the nerve damage and its anatomical location and thus requires integration with morphological studies. High-Resolution Ultrasound (HRUS) is increasingly adopted to support the diagnosis and follow-up of both joint disorders in rheumatology and peripheral neuropathies of different etiologies. In this review, the different types of nerve disorders associated with the most common syndromes of rheumatological interest are discussed, focusing on the distinctive sonographic features.
Collapse
Affiliation(s)
- Federico Zaottini
- San Martino Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Genoa, Italy
| | - Riccardo Picasso
- San Martino Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Genoa, Italy
- *Correspondence: Riccardo Picasso,
| | - Federico Pistoia
- Dipartimento di Medicina Sperimentale, Scuola di Scienze Mediche e Farmaceutiche, Università di Genova, Genoa, Italy
| | - Sara Sanguinetti
- Dipartimento di Medicina Sperimentale, Scuola di Scienze Mediche e Farmaceutiche, Università di Genova, Genoa, Italy
| | - Michelle Pansecchi
- Dipartimento di Scienze della Salute, Scuola di Scienze Mediche e Farmaceutiche, Università di Genova, Genoa, Italy
| | - Luca Tovt
- Dipartimento di Scienze della Salute, Scuola di Scienze Mediche e Farmaceutiche, Università di Genova, Genoa, Italy
| | - Umberto Viglino
- Dipartimento di Scienze della Salute, Scuola di Scienze Mediche e Farmaceutiche, Università di Genova, Genoa, Italy
| | - Corrado Cabona
- San Martino Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Genoa, Italy
- Eye Clinic, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Science, School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy
| | - Martina Garnero
- San Martino Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Genoa, Italy
- Eye Clinic, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Science, School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy
| | - Luana Benedetti
- San Martino Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Genoa, Italy
- Eye Clinic, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Science, School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy
| | - Carlo Martinoli
- San Martino Hospital, Istituto di Ricovero e Cura a Carattere Scientifico, Genoa, Italy
- Dipartimento di Scienze della Salute, Scuola di Scienze Mediche e Farmaceutiche, Università di Genova, Genoa, Italy
| |
Collapse
|
5
|
Malartre S, Bachasson D, Mercy G, Sarkis E, Anquetil C, Benveniste O, Allenbach Y. MRI and muscle imaging for idiopathic inflammatory myopathies. Brain Pathol 2021; 31:e12954. [PMID: 34043260 PMCID: PMC8412099 DOI: 10.1111/bpa.12954] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 03/11/2021] [Indexed: 12/22/2022] Open
Abstract
Although idiopathic inflammatory myopathies (IIM) are a heterogeneous group of diseases nearly all patients display muscle inflammation. Originally, muscle biopsy was considered as the gold standard for IIM diagnosis. The development of muscle imaging led to revisiting not only the IIM diagnosis strategy but also the patients' follow-up. Different techniques have been tested or are in development for IIM including positron emission tomography, ultrasound imaging, ultrasound shear wave elastography, though magnetic resonance imaging (MRI) remains the most widely used technique in routine. Whereas guidelines on muscle imaging in myositis are lacking here we reviewed the relevance of muscle imaging for both diagnosis and myositis patients' follow-up. We propose recommendations about when and how to perform MRI on myositis patients, and we describe new techniques that are under development.
Collapse
Affiliation(s)
- Samuel Malartre
- Department of Internal Medicine and Clinical Immunlogy, Sorbonne Université, Pitié-Salpêtrière University Hospital, Paris, France.,Centre de Recherche en Myologie, UMRS974, Association Institut de Myologie, Institut National de la Santé et de la Recherche Médicale, Sorbonne Université, Paris, France
| | - Damien Bachasson
- Neuromuscular Physiology Laboratory, Neuromuscular Investigation Center, Institute of Myology, Paris, France
| | - Guillaume Mercy
- Department of Medical Imaging, AP-HP, Hôpitaux Universitaires La Pitié Salpêtrière-Charles-Foix, Sorbonne Université, Paris, France
| | - Elissone Sarkis
- Department of Internal Medicine and Clinical Immunlogy, Sorbonne Université, Pitié-Salpêtrière University Hospital, Paris, France.,Centre de Recherche en Myologie, UMRS974, Association Institut de Myologie, Institut National de la Santé et de la Recherche Médicale, Sorbonne Université, Paris, France
| | - Céline Anquetil
- Department of Internal Medicine and Clinical Immunlogy, Sorbonne Université, Pitié-Salpêtrière University Hospital, Paris, France.,Centre de Recherche en Myologie, UMRS974, Association Institut de Myologie, Institut National de la Santé et de la Recherche Médicale, Sorbonne Université, Paris, France
| | - Olivier Benveniste
- Department of Internal Medicine and Clinical Immunlogy, Sorbonne Université, Pitié-Salpêtrière University Hospital, Paris, France.,Centre de Recherche en Myologie, UMRS974, Association Institut de Myologie, Institut National de la Santé et de la Recherche Médicale, Sorbonne Université, Paris, France
| | - Yves Allenbach
- Department of Internal Medicine and Clinical Immunlogy, Sorbonne Université, Pitié-Salpêtrière University Hospital, Paris, France.,Centre de Recherche en Myologie, UMRS974, Association Institut de Myologie, Institut National de la Santé et de la Recherche Médicale, Sorbonne Université, Paris, France
| |
Collapse
|
6
|
Conticini E, Falsetti P, Al Khayyat SG, Baldi C, Bellisai F, Bardelli M, Sota J, Cantarini L, Frediani B. A novel grey Scale and Power Doppler ultrasonographic score for idiopathic inflammatory myopathies: Siena Myositis Ultrasound Grading Scale. Rheumatology (Oxford) 2021; 61:185-194. [PMID: 33839741 DOI: 10.1093/rheumatology/keab340] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVES No clear-cut guidelines exist about the use of diagnostic procedures for idiopathic inflammatory myopathies (IIM) and only scanty and conflicting data report the use of ultrasound (US). In this regard, we aimed to assess if grey-scale (GS) and Power Doppler (PD) US, graded with a 0-3-points-scale, may be a reliable tool in a cohort of patients affected by IIM. METHODS All patients underwent US examination of both thighs in axial and longitudinal scans. Edema and atrophy, both assessed in GS, and PD, were graded with a 0-3-points-scale. Spearman test was used to identify the correlations between US and clinical and serological variables. RESULTS A total of 20 patients was included. Six and 2 of them were evaluated twice and 3 times, respectively. Muscle edema was found to be directly correlated with physician global assessment (PhGA), serum myoglobin and PD and negatively with disease duration. PD score was positively correlated to PhGA and negatively to disease duration. Muscle atrophy directly correlated with Myositis Damage Index, disease duration and patients' age. The single-thigh sub-analysis evidenced a direct correlation between PD score and Manual Muscle Test. CONCLUSIONS In our cohort, we found that edema and PD are strictly related to early, active myositis, suggesting that an inflamed muscle should appear swollen, thickened and with Doppler signal. Conversely, muscle atrophy reflects the age of the patient and the overall severity of the disease. Such findings shed a new, promising, light in the role of US in diagnosis and monitoring of IIMs.
Collapse
Affiliation(s)
- Edoardo Conticini
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Paolo Falsetti
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | | | - Caterina Baldi
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Francesca Bellisai
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Marco Bardelli
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Jurgen Sota
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Luca Cantarini
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - Bruno Frediani
- Rheumatology Unit, Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| |
Collapse
|
7
|
Fischer C, Krix M, Weber MA, Loizides A, Gruber H, Jung EM, Klauser A, Radzina M, Dietrich CF. Contrast-Enhanced Ultrasound for Musculoskeletal Applications: A World Federation for Ultrasound in Medicine and Biology Position Paper. ULTRASOUND IN MEDICINE & BIOLOGY 2020; 46:1279-1295. [PMID: 32139152 DOI: 10.1016/j.ultrasmedbio.2020.01.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/23/2020] [Accepted: 01/24/2020] [Indexed: 06/10/2023]
Abstract
This World Federation for Ultrasound in Medicine and Biology position paper reviews the diagnostic potential of ultrasound contrast agents for clinical decision-making and provides general advice for optimal contrast-enhanced ultrasound performance in musculoskeletal issues. In this domain, contrast-enhanced ultrasound performance has increasingly been investigated with promising results, but still lacks everyday clinical application and standardized techniques; therefore, experts summarized current knowledge according to published evidence and best personal experience. The goal was to intensify and standardize the use and administration of ultrasound contrast agents to facilitate correct diagnoses and ultimately to improve the management and outcomes of patients.
Collapse
Affiliation(s)
- Christian Fischer
- Center for Orthopaedics, Trauma Surgery and Spinal Cord Injury, Ultrasound Center, HTRG-Heidelberg Trauma Research Group, Heidelberg University Hospital, Heidelberg, Germany.
| | | | - Marc-André Weber
- Institute of Diagnostic and Interventional Radiology, Pediatric Radiology and Neuroradiology, University Medical Center Rostock, Rostock, Germany
| | - Alexander Loizides
- Department of Radiology, Ultrasound Center, Innsbruck Medical University, Innsbruck, Austria
| | - Hannes Gruber
- Department of Radiology, Ultrasound Center, Innsbruck Medical University, Innsbruck, Austria
| | | | - Andrea Klauser
- Department of Radiology, Ultrasound Center, Innsbruck Medical University, Innsbruck, Austria
| | - Maija Radzina
- Diagnostic Radiology Institute, Riga Stradins University, Riga, Latvia
| | | |
Collapse
|
8
|
Sudoł-Szopińska I, Jacques T, Gietka P, Cotten A. Imaging in dermatomyositis in adults and children. J Ultrason 2020; 20:e36-e42. [PMID: 32320164 PMCID: PMC7266069 DOI: 10.15557/jou.2020.0007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/02/2020] [Indexed: 11/29/2022] Open
Abstract
Dermatomyositis is a rare autoimmune disorder in which an abnormal immune reaction against vascular endothelial antigens and endomysium leads to obstructive inflammatory changes of blood vessels within muscles, skin and other tissues. The disease is characterized by involvement of muscles, and less frequently of other systems, including the gastrointestinal tract, heart and lungs. Dermatomyositis may be diagnosed based on a detailed patient history, through clinical examination, detection of characteristic physical findings and certain specialized tests. Additional imaging studies may be performed to aid in the diagnosis. These include magnetic resonance imaging and ultrasound of the affected muscles. Magnetic resonance imaging is the modality of choice in the diagnostic work-up and monitoring of dermatomyositis affecting muscles, fasciae, and the subcutis. It may recognize acute inflammatory edematous changes in the affected muscles as well fatty replacement and atrophy. The role of ultrasound to diagnose and follow up muscle echogenicity, vascularity, elasticity and volume during treatment has increased over the last years in both adults and children. Ultrasound is used to discriminate between high and low disease activity, may show features of subclinical disease and may be used to confirm remission.
Collapse
Affiliation(s)
- Iwona Sudoł-Szopińska
- Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation , Warsaw , Poland
| | - Thibaut Jacques
- Department of Musculoskeletal Radiology, Lille University Hospital , Lille , France
| | - Piotr Gietka
- Department of Pediatric Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation , Warsaw , Poland
| | - Anne Cotten
- Department of Musculoskeletal Radiology, Lille University Hospital , Lille , France
| |
Collapse
|
9
|
Current status and recent advances on the use of ultrasonography in pediatric rheumatic diseases. World J Pediatr 2020; 16:52-59. [PMID: 31515696 DOI: 10.1007/s12519-019-00312-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 08/26/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND Ultrasonography has become a useful tool in the clinical rheumatology settings in the last two decades, but its use has only recently been explored by pediatric rheumatologists. The aim of this article is to review the literature on the current status and recent advances on the use of ultrasound in pediatric rheumatic diseases. DATA SOURCES We have retrieved and reviewed the relevant articles from MEDLINE/PubMed databases published so far, on the applications of ultrasound in juvenile idiopathic arthritis (JIA), systemic lupus erythematosus, dermatomyositis, enthesitis, Sjogren's syndrome, and other rheumatic diseases. In addition, articles on novel ultrasound imaging technology of potential use in pediatric rheumatology are also reviewed. RESULTS In JIA, ultrasound can be used to detect subclinical synovitis, to improve the classification of patients in JIA subtypes, to capture early articular damage, to monitor treatment response, and to guide intraarticular injections. Ultrasound is also considered useful in other rheumatic disorders for the evaluation of musculoskeletal symptoms, assessment of parotid gland pathology, and measurement of skin thickness and pathology. Novel ultrasound techniques developed to augment the functionality of ultrasonography may also be applicable in pediatric rheumatic disorders. CONCLUSIONS Ultrasound shows great promise in the assessment and management of children with rheumatologic disorders. However, standardization and validation of ultrasound in healthy children and in patients with rheumatic diseases are still needed.
Collapse
|
10
|
Yang SH, Chang C, Lian ZX. Polymyositis and dermatomyositis - challenges in diagnosis and management. J Transl Autoimmun 2019; 2:100018. [PMID: 32743506 PMCID: PMC7388349 DOI: 10.1016/j.jtauto.2019.100018] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 10/04/2019] [Indexed: 02/06/2023] Open
Abstract
Polymyositis (PM) and dermatomyositis (DM) are different disease subtypes of idiopathic inflammatory myopathies (IIMs). The main clinical features of PM and DM include progressive symmetric, predominantly proximal muscle weakness. Laboratory findings include elevated creatine kinase (CK), autoantibodies in serum, and inflammatory infiltrates in muscle biopsy. Dermatomyositis can also involve a characteristic skin rash. Both polymyositis and dermatomyositis can present with extramuscular involvement. The causative factor is agnogenic activation of immune system, leading to immunologic attacks on muscle fibers and endomysial capillaries. The treatment of choice is immunosuppression. PM and DM can be distinguished from other IIMs and myopathies by thorough history, physical examinations and laboratory evaluation and adherence to specific and up-to-date diagnosis criteria and classification standards. Treatment is based on correct diagnosis of these conditions. Challenges of diagnosis and management influences the clinical research and practice of Polymyositis and dermatomyositis. Diagnostic criteria have been updated and novel therapies have been developed in PM/DM. Pathogenesis investigation and diagnosis precision improvement may help to guide future treatment strategies.
Collapse
Key Words
- APC, antigen presenting cell
- AZA, Azathioprine
- CAM, cancer associated myositis
- CK, creatine kinase
- DM, dermatomyositis
- Dermatomyositis
- Diagnosis criteria
- EMG, electromyography
- HLA, human leukocyte antigen
- IIM, idiopathic inflammatory myopathies
- ILD, interstitial lung disease
- IV, intravenous
- Idiopathic inflammatory myopathy
- JDM, juvenile dermatomyositis
- MAA, myositis associated antibody
- MAC, membrane attack complex
- MHC, major histocompatibility complex
- MMF, mycophenolate mofetil
- MRI, magnetic resonance imaging
- MSA, myositis specific antibody
- MTX, methotrexate
- MUAP, motor unit action potential
- NAM, necrotizing autoimmune myopathy
- PM, polymyositis
- Polymyositis
- TNF, tumor necrosis factor
- Treatment
- Treg, regulatory T cell
- UVR, ultraviolet radiation
- sIBM, sporadic inclusion body myositis
Collapse
Affiliation(s)
- Shu-Han Yang
- Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Christopher Chang
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, Davis, CA, USA.,Division of Pediatric Immunology and Allergy, Joe DiMaggio Children's Hospital, Hollywood, FL, USA
| | - Zhe-Xiong Lian
- Chronic Disease Laboratory, Institutes for Life Sciences and School of Medicine, South China University of Technology, Guangzhou, 510006, China
| |
Collapse
|
11
|
Abstract
Inflammatory disorders of the skeletal muscle include polymyositis (PM), dermatomyositis (DM), (immune mediated) necrotizing myopathy (NM), overlap syndrome with myositis (overlap myositis, OM) including anti-synthetase syndrome (ASS), and inclusion body myositis (IBM). Whereas DM occurs in children and adults, all other forms of myositis mostly develop in middle aged individuals. Apart from a slowly progressive, chronic disease course in IBM, patients with myositis typically present with a subacute onset of weakness of arms and legs, often associated with pain and clearly elevated creatine kinase in the serum. PM, DM and most patients with NM and OM usually respond to immunosuppressive therapy, whereas IBM is largely refractory to treatment. The diagnosis of myositis requires careful and combinatorial assessment of (1) clinical symptoms including pattern of weakness and paraclinical tests such as MRI of the muscle and electromyography (EMG), (2) broad analysis of auto-antibodies associated with myositis, and (3) detailed histopathological work-up of a skeletal muscle biopsy. This review provides a comprehensive overview of the current classification, diagnostic pathway, treatment regimen and pathomechanistic understanding of myositis.
Collapse
Affiliation(s)
- Jens Schmidt
- Department of Neurology, Muscle Immunobiology Group, Neuromuscular Center, University Medical Center Göttingen, Göttingen, Germany,Correspondence to: Prof. Dr. Jens Schmidt, MD, FEAN, FAAN, Muscle Immunobiology Group, Neuromuscular Center, Department of Neurology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany. Tel.: +49 551 39 22355; Fax: +49 551 39 8405; E-mail:
| |
Collapse
|
12
|
Sogawa K, Nodera H, Takamatsu N, Mori A, Yamazaki H, Shimatani Y, Izumi Y, Kaji R. Neurogenic and Myogenic Diseases: Quantitative Texture Analysis of Muscle US Data for Differentiation. Radiology 2017; 283:492-498. [PMID: 28156201 DOI: 10.1148/radiol.2016160826] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Purpose To assess the multiple texture features of skeletal muscles in neurogenic and myogenic diseases by using ultrasonography (US). Materials and Methods After institutional review board approval, muscle US studies of the medial head of the gastrocnemius were performed prospectively in patients with neurogenic diseases (n = 25 [18 men]; mean age, 66.0 years ± 12.3 [standard deviation]), in patients with myogenic diseases (n = 21 [12 men]; mean age, 68.3 years ± 11.5), and in healthy control subjects (n = 21 [11 men]; mean age, 70.5 years ± 8.4) between January 2013 and May 2016. Written informed consent was obtained. Muscle texture parameters were obtained, and five algorithms were used to classify the groups. Results The neurogenic and myogenic disease groups showed higher echo intensities than the control subjects. The histogram-derived texture parameters had overlaps between the neurogenic and myogenic groups and thus had a low discrimination rate. With assessment of more classes of texture parameters, three groups were correctly classified (100% correct, according to four of five classification algorithms). Tenfold cross validation showed 93.5%-95.7% correct classification between the neurogenic and myogenic groups. The run-length matrix, autoregressive model, and co-occurrence matrix were particularly useful in distinguishing the neurogenic and myogenic groups. Conclusion Texture analysis of muscle US data can enable differentiation between neurogenic and myogenic diseases and is useful in noninvasively assessing underlying disease mechanisms. © RSNA, 2017 Online supplemental material is available for this article.
Collapse
Affiliation(s)
- Kazuki Sogawa
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Hiroyuki Nodera
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Naoko Takamatsu
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Atsuko Mori
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Hiroki Yamazaki
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Yoshimitsu Shimatani
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Yuishin Izumi
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| | - Ryuji Kaji
- From the Faculty of Medicine (K.S.) and Department of Neurology (H.N., N.T., A.M., H.Y., Y.S., Y.I., R.K.), Tokushima University, 3-18-15 Kuramotocho, Tokushima 770-8503, Japan; and Department of Neurology, Vihara Hananosato Hospital, Hiroshima, Japan (N.T., Y.I.)
| |
Collapse
|
13
|
|
14
|
Habers GEA, Van Brussel M, Bhansing KJ, Hoppenreijs EP, Janssen AJ, Van Royen-Kerkhof A, Pillen S. Quantitative muscle ultrasonography in the follow-up of juvenile dermatomyositis. Muscle Nerve 2015; 52:540-6. [DOI: 10.1002/mus.24564] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 12/19/2014] [Accepted: 12/25/2014] [Indexed: 12/14/2022]
Affiliation(s)
- G. Esther A. Habers
- Childhood Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht; the Netherlands
| | - Marco Van Brussel
- Childhood Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht; the Netherlands
| | - Kavish J. Bhansing
- Department of Rheumatology; Radboud University Medical Center Nijmegen; the Netherlands
| | - Esther P. Hoppenreijs
- Department of Pediatrics; Pediatric Rheumatology; Radboud University Medical Center Nijmegen; the Netherlands
| | - Anjo J.W.M. Janssen
- Department of Rehabilitation; Pediatric Physical Therapy; Radboud University Medical Center Nijmegen; the Netherlands
| | - Annet Van Royen-Kerkhof
- Department of Pediatric Rheumatology; Wilhelmina Children's Hospital, University Medical Center Utrecht; the Netherlands
| | - Sigrid Pillen
- Childhood Development and Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht; the Netherlands
| |
Collapse
|
15
|
Paltiel HJ, Estrada CR, Alomari AI, Stamoulis C, Passerotti CC, Meral FC, Lee RS, Clement GT. Multi-planar dynamic contrast-enhanced ultrasound assessment of blood flow in a rabbit model of testicular torsion. ULTRASOUND IN MEDICINE & BIOLOGY 2014; 40:361-370. [PMID: 24188690 PMCID: PMC3961143 DOI: 10.1016/j.ultrasmedbio.2013.08.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 08/12/2013] [Accepted: 08/25/2013] [Indexed: 06/02/2023]
Abstract
To assess correlation between multi-planar, dynamic contrast-enhanced ultrasound (US) blood flow measurements and radiolabeled microsphere blood flow measurements, five groups of six rabbits underwent unilateral testicular torsion of 0°, 180°, 360°, 540° or 720°. Five US measurements per testis (three transverse/two longitudinal) were obtained pre-operatively and immediately and 4 and 8 h post-operatively using linear transducers (7-4 MHz/center frequency 4.5 MHz/10 rabbits; 9-3 MHz/center frequency 5.5 MHz/20 rabbits). Björck's linear least-squares method fit the rise phase of mean pixel intensity over a 7-s period for each time curve. Slope of fit and intervention/control US pixel intensity ratios were calculated. Means of transverse, longitudinal and combined transverse/longitudinal US ratios as a function of torsion degree were compared with radiolabeled microsphere ratios using Pearson's correlation coefficient, ρ. There was high correlation between the two sets of ratios (ρ ≥ 0.88, p ≤ 0.05), except for the transverse US ratio in the immediate post-operative period (ρ = 0.79, p = 0.11). These results hold promise for future clinical applications.
Collapse
Affiliation(s)
- Harriet J Paltiel
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA.
| | - Carlos R Estrada
- Department of Urology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ahmad I Alomari
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Catherine Stamoulis
- Department of Radiology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Carlo C Passerotti
- Department of Urology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - F Can Meral
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Richard S Lee
- Department of Urology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Gregory T Clement
- Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
16
|
Iaccarino L, Ghirardello A, Bettio S, Zen M, Gatto M, Punzi L, Doria A. The clinical features, diagnosis and classification of dermatomyositis. J Autoimmun 2014; 48-49:122-7. [PMID: 24467910 DOI: 10.1016/j.jaut.2013.11.005] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 11/13/2013] [Indexed: 12/18/2022]
Abstract
Dermatomyositis (DM) is an idiopathic inflammatory myopathy (IIM) characterized by an inflammatory infiltrate primarily affecting the skeletal muscle and skin. Most common and peculiar cutaneous lesions include Gottron's papules, Gottron's sign and heliotrope rash. Different DM subsets have been identified until now encompassing classic DM, amyopathic DM, hypomyopathic DM, post-myopathic DM, and DM sine dermatitis. Patients with DM have a higher incidence rate of malignancy than the normal population. In these patients cancer occurs in about 30% of cases with higher occurrence in men and in elderly people. Bohan and Peter's diagnostic criteria, proposed in 1975, have been widely accepted and used until now. In the last ten years muscle immunopathology, myositis specific autoantibodies testing, and the use of new techniques of muscle imaging such as contrast-enhanced ultrasound or Magnetic Resonance Imaging have been introduced in the diagnostic work-up of patients with DM leading to the development of new diagnostic criteria.
Collapse
Affiliation(s)
- Luca Iaccarino
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Anna Ghirardello
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Silvano Bettio
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Margherita Zen
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Mariele Gatto
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Leonardo Punzi
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
| | - Andrea Doria
- Rheumatology Unit, Department of Medicine-DIMED, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy.
| |
Collapse
|
17
|
Ultrasonographic evaluation of the muscle architecture in patients with systemic lupus erythematosus. Clin Rheumatol 2013; 32:1155-60. [PMID: 23588880 DOI: 10.1007/s10067-013-2249-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 02/24/2013] [Accepted: 03/26/2013] [Indexed: 10/27/2022]
Abstract
Systemic lupus erythematosus (SLE) is a multi-system chronic inflammatory disease with a broad spectrum of clinical and serological manifestations. Although clinical evidence of proximal skeletal muscle involvement is not rare in patients with SLE, there is no knowledge about the effects of SLE on the macroscopic structural parameters of the muscles. Therefore, in this study, we aimed to explore the muscle strength and structure of SLE patients using isokinetic testing and ultrasonographic imaging. Thirty-one SLE patients (5 men, 26 women) with a mean age of 38.61 ± 10.68 years and mean disease duration of 3.71 ± 3.23 years without any previous history of myositis and 31 age- and sex-matched healthy subjects were enrolled. Demographic and clinical characteristics of the patients were recorded. Ultrasonographic evaluations were performed with a 7- to 12-MHz linear probe from vastus lateralis and gastrocnemius muscles of the nondominant extremity. Measurements included muscle thickness, pennation angle, and fascicule length. Isokinetic nondominant knee muscle strength tests were performed at 60 and 180°/s. We found that muscle thickness, pennation angle, and fascicle length of vastus lateralis muscles were increased in patients with SLE in comparison to control subjects (p < 0.001, p = 0.007, and p = 0.217, respectively). On the other hand, the measurements pertaining to the gastrocnemius muscles were found to be similar between the two groups. We observed that all isokinetic knee muscle strength values were decreased in SLE patients, and knee strength values were found to be negatively correlated with age and positively correlated with height (all p < 0.01). We found that the structural and strength changes were seen in the proximal muscles of SLE patients. Pathophysiology and clinical relevance of these changes need to be further investigated.
Collapse
|
18
|
Tuen VC, Zingula SN, Moir C, Reed AM, Matsumoto JM, Woodrum DA. MRI guided wire localization muscle biopsy in a child with juvenile dermatomyositis. Pediatr Rheumatol Online J 2013; 11:15. [PMID: 23566445 PMCID: PMC3635941 DOI: 10.1186/1546-0096-11-15] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 03/22/2013] [Indexed: 11/15/2022] Open
Abstract
A novel technique for preoperative MRI guided wire localization for targeted surgical excisional biopsy of muscle is described in a pediatric patient with juvenile dermatomyositis (JDM). This technique allows for preoperative localization of abnormalities seen only with MRI. Using this technique, the patient underwent successful targeted muscle biopsy for confirmation of the diagnosis and staging of dermatomyositis.
Collapse
Affiliation(s)
- Victoria C Tuen
- Department of Interventional Radiology, Mayo Clinic College of Medicine, 200 First St, SW, Rochester, MN, 55905, USA.
| | - Shannon N Zingula
- Pediatric Radiology, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Christopher Moir
- Children’s Center Surgery, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Ann M Reed
- Pediatric Rheumatology, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - Jane M Matsumoto
- Pediatric Radiology, Mayo Clinic College of Medicine, Rochester, MN, 55905, USA
| | - David A Woodrum
- Department of Interventional Radiology, Mayo Clinic College of Medicine, 200 First St. SW, Rochester, MN, 55905, USA
| |
Collapse
|
19
|
Lazarou IN, Guerne PA. Classification, diagnosis, and management of idiopathic inflammatory myopathies. J Rheumatol 2013; 40:550-64. [PMID: 23504386 DOI: 10.3899/jrheum.120682] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The detection and characterization of a large array of autoantibodies, including at least 8 different antisynthetase, anti-SRP, -200/100 (HMGCR), -Mi-2, -CADM-140 (MDA5), -SAE, -p155, -MJ (NXP-2), and -PMS1, frequently associated with distinct and well-defined clinicopathological features, allowed for significant improvement in the definition and diagnosis of idiopathic inflammatory myopathies (IIM). Classification remains difficult, with lingering divergence between the different specialties involved in IIM care, but several categories clearly stand out, including dermatomyositis (DM), overlap myositis (OM), polymyositis, necrotizing myositis, and sporadic inclusion body myositis (s-IBM). Biopsy and histological analysis remain crucial, particularly in the absence of autoantibodies, to accurately specify the diagnosis and rule out mimics such as muscular dystrophies and metabolic myopathies. Numerous infectious agents (in particular human immunodeficiency virus and human T cell lymphotrophic virus-1) and drugs (statins, tumor necrosis factor inhibitors, and proton pump inhibitors) can cause mimic IIM that must also be excluded. Pharmacological treatment, in addition to glucocorticoids and immunoglobulins, now includes mycophenolate mofetil and rituximab, which proved helpful in resistant cases, particularly rituximab in DM and OM. Exercise, initially seen as potentially deleterious, recently was shown to be efficacious and safe. IIM can thus be reasonably well controlled in most cases, although aggressive disease remains refractory to treatment, including some cases of necrotizing myopathy. Sporadic IBM still seems resistant to all medications tested to date.
Collapse
Affiliation(s)
- Ilias N Lazarou
- Department of Rheumatology, University Hospital of Geneva, Geneva, Switzerland.
| | | |
Collapse
|
20
|
Tanaka TI, Geist SMRY. Dermatomyositis: a contemporary review for oral health care providers. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 114:e1-8. [DOI: 10.1016/j.oooo.2012.07.434] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 06/18/2012] [Accepted: 07/09/2012] [Indexed: 12/17/2022]
|
21
|
Ultrasonographic assessment of standing laparotomy wound healing in dairy cows. Res Vet Sci 2012; 93:478-83. [DOI: 10.1016/j.rvsc.2011.07.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 06/16/2011] [Accepted: 07/29/2011] [Indexed: 11/20/2022]
|
22
|
Strowd LC, Jorizzo JL. Review of dermatomyositis: establishing the diagnosis and treatment algorithm. J DERMATOL TREAT 2012; 24:418-21. [DOI: 10.3109/09546634.2012.697540] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
23
|
|
24
|
Cartwright MS, Walker FO, Griffin LP, Caress JB. Peripheral nerve and muscle ultrasound in amyotrophic lateral sclerosis. Muscle Nerve 2011; 44:346-51. [PMID: 21815172 DOI: 10.1002/mus.22035] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2011] [Indexed: 12/31/2022]
Abstract
INTRODUCTION High-resolution ultrasound has been used to evaluate several neuromuscular conditions, but it has only been used on a limited basis in amyotrophic lateral sclerosis (ALS) patients. It has not been used to assess their peripheral nerves. This study was designed to use neuromuscular ultrasound to investigate nerve cross-sectional area and muscle thickness in ALS. METHODS Twenty individuals with ALS and 20 matched controls underwent neuromuscular ultrasound to measure the cross-sectional area of their median and sural nerves and the thickness of their biceps/brachialis muscle complex. RESULTS The cross-sectional area of the median nerve in the mid-arm was smaller in the ALS group than in controls (10.5 mm(2) vs. 12.7 mm(2) , P = 0.0023), but no difference was seen in the sural nerve (4.5 mm(2) vs. 5.0 mm(2) , P = 0.1927). The ALS group also had thinner biceps/brachialis than controls (2.1 cm vs. 2.9 cm, P = 0.0007). CONCLUSIONS Neuromuscular ultrasound demonstrates nerve and muscle atrophy in ALS and should be further explored as a disease biomarker.
Collapse
Affiliation(s)
- Michael S Cartwright
- Department of Neurology, Wake Forest University School of Medicine, Reynolds Tower, Winston-Salem, North Carolina 27157, USA.
| | | | | | | |
Collapse
|
25
|
|
26
|
Paltiel HJ, Padua HM, Gargollo PC, Cannon GM, Alomari AI, Yu R, Clement GT. Contrast-enhanced, real-time volumetric ultrasound imaging of tissue perfusion: preliminary results in a rabbit model of testicular torsion. Phys Med Biol 2011; 56:2183-97. [PMID: 21403185 DOI: 10.1088/0031-9155/56/7/018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Contrast-enhanced ultrasound (US) imaging is potentially applicable to the clinical investigation of a wide variety of perfusion disorders. Quantitative analysis of perfusion is not widely performed, and is limited by the fact that data are acquired from a single tissue plane, a situation that is unlikely to accurately reflect global perfusion. Real-time perfusion information from a tissue volume in an experimental rabbit model of testicular torsion was obtained with a two-dimensional matrix phased array US transducer. Contrast-enhanced imaging was performed in 20 rabbits during intravenous infusion of the microbubble contrast agent Definity® before and after unilateral testicular torsion and contralateral orchiopexy. The degree of torsion was 0° in 4 (sham surgery), 180° in 4, 360° in 4, 540° in 4, and 720° in 4. An automated technique was developed to analyze the time history of US image intensity in experimental and control testes. Comparison of mean US intensity rate of change and of ratios between mean US intensity rate of change in experimental and control testes demonstrated good correlation with testicular perfusion and mean perfusion ratios obtained with radiolabeled microspheres, an accepted 'gold standard'. This method is of potential utility in the clinical evaluation of testicular and other organ perfusion.
Collapse
Affiliation(s)
- H J Paltiel
- Department of Radiology, Children's Hospital Boston and Harvard Medical School, Boston, MA, USA.
| | | | | | | | | | | | | |
Collapse
|