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Zhang X, Sun W, Wang L, Xie Z, Liu M, Wang J. Selective pyrophosphate detection via metal complexes. IRADIOLOGY 2023; 1:320-339. [PMID: 38737136 PMCID: PMC11087008 DOI: 10.1002/ird3.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/05/2023] [Indexed: 05/14/2024]
Abstract
Pyrophosphate (PPi) anions are crucial in numerous biological and ecological processes involved in energy conversion, enzymatic reactions, and metabolic regulation along with adenosine. They are also significant biological markers for various processes related to diseases. Fluorescent PPi sensors would enable visual and/or biological detection in convenient settings. However, the current availability of commercial sensors has been limited to costly enzymes that are not compatible for imaging. Sensor development has also encountered challenges such as poor selectivity and stability, and limited practical applications. In this review, we analyze the situation of PPi sensing via commercial kits and focus on sensors that use metal complexes. We address their designs, sensing mechanisms, selectivities and detection limits. Finally, we discuss limitations and perspectives for PPi detection and imaging.
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Affiliation(s)
- Xiao Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Wenwen Sun
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Le Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Zeping Xie
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
| | - Mengxia Liu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Junfeng Wang
- Gordon Center for Medical Imaging, Massachusetts General Hospital and Harvard Medical School, 125 Nashua Street, Suite 660, Boston, Massachusetts 02114, USA
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Lee KC, Ahn KS, Kang CH, Hong SJ, Kim BH, Shim E. A Systematic Approach to Diagnosing Arthritis Based on Radiological Imaging. Curr Med Imaging 2022; 18:1160-1179. [DOI: 10.2174/1573405618666220428100951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 02/16/2022] [Accepted: 03/11/2022] [Indexed: 11/22/2022]
Abstract
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Radiology plays key roles in diagnosis of arthritis. We herein suggest an algorithmic approach to diagnosing arthritis. First, the number of joint involvements is reviewed. Monoarticular arthritis includes septic arthritis, pigmented villonodular synovitis, and synovial chondromatosis. Second, polyarticular arthritis can be categorized by its characteristics: erosive, productive and mixed. Erosive disease includes rheumatoid arthritis, hemophilia, and amyloidosis while productive disease includes osteoarthritis, and hemochromatosis. Third, mixed diseases are subcategorized by symmetricity. Ankylosing spondylitis and inflammatory bowel disease related arthritis affect joints symmetrically while psoriatic arthritis, reactive arthritis, and crystalline arthropathy are asymmetric. Adjacent soft tissue density, periostitis, and bone density are ancillary findings that can be used as additional differential diagnostic clues. The final step in identifying the type of arthritis is to check whether the location is a site frequently affected by one particular disease over another. This systematic approach would be helpful for radiologist to diagnose arthritis.
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Affiliation(s)
- Kyu-Chong Lee
- Department of Radiology, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Kyung-Sik Ahn
- Department of Radiology, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Chang Ho Kang
- Department of Radiology, Korea University Anam Hospital, Seoul, Republic of Korea
| | - Suk Joo Hong
- Department of Radiology, Korea University Guro Hospital, Seoul, Republic of Korea
| | - Baek Hyun Kim
- Department of Radiology, Korea University Ansan Hospital, Ansan, Republic of Korea
| | - Euddeum Shim
- Department of Radiology, Korea University Ansan Hospital, Ansan, Republic of Korea
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Iyengar KP, Jun Ngo VQ, Jain VK, Ahuja N, Hakim Z, Sangani C. What does the orthopaedic surgeon want in the radiology report? J Clin Orthop Trauma 2021; 21:101530. [PMID: 34386345 PMCID: PMC8333142 DOI: 10.1016/j.jcot.2021.101530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 07/21/2021] [Indexed: 02/07/2023] Open
Abstract
Complementary imaging is crucial in the diagnosis and management of the spectrum of Musculoskeletal (MSK) pathologies. Like in all medical specialities, its role in trauma and orthopaedic conditions has evolved. A radiology report following an imaging study should provide an accurate, timely interpretation of images and be presented in a format that allows formal analysis or clarification of a patient's diagnostic dilemma. It is essential that it is descriptive enough to allow clinico-pathological correlation to a patient's condition. A high-quality report follows clinical governance processes, provides clinical feedback, and when appropriate, incorporates advice regarding differential diagnosis or further investigation/management that can be undertaken, permitting the attending clinician to formulate a suitable treatment plan for their patient. In this narrative we explore common radiological investigations and reporting information in trauma and orthopaedic conditions, which would be useful to the attending surgeon.
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Affiliation(s)
- Karthikeyan P. Iyengar
- Trauma and Orthopaedic Surgeon, Southport and Ormskirk NHS Trust, Southport, PR8 6PN, UK
| | - Vivien Qi Jun Ngo
- Foundation Year 2 Doctor in Orthopaedics, Southport and Ormskirk NHS Trust, Southport, PR8 6PN, UK
| | - Vijay Kumar Jain
- Department of Orthopaedics, Atal Bihari Vajpayee Institute of Medical Sciences, Dr Ram Manohar Lohia Hospital, New Delhi, 110001, India
| | - Neeraj Ahuja
- Consultant Orthopaedic and Shoulder Surgeon, Southport and Ormskirk NHS Trust, Southport, PR8 6PN, UK
| | - Zuned Hakim
- Consultant Trauma and Upper Limb Surgeon, Southport and Ormskirk NHS Trust, Southport, PR8 6PN, UK
| | - Chetan Sangani
- Trauma and Orthopaedic Surgeon, Southport and Ormskirk NHS Trust, Southport, PR8 6PN, UK
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Badar F, Lee J, Qu X, Xia Y. Topographical and zonal patterns of T2 relaxation in osteoarthritic tibial cartilage by low- and high-resolution MRI. Magn Reson Imaging 2021; 78:98-108. [PMID: 33493580 DOI: 10.1016/j.mri.2021.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/20/2020] [Accepted: 01/16/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE This study aimed to establish the topographical and zonal T2 patterns of multi-resolution MRI in medial tibial cartilage in a canine model of osteoarthritis (OA), initiated by the anterior cruciate ligament (ACL) transection surgery, and studied after 8-weeks and 12-weeks post-surgery. METHODS Articular cartilage from healthy, two stages of contralateral, and of OA knees were quantitatively imaged by the MRI T2 protocols at two imaging resolutions (100 and 17.6 μm/pixel). The zonal T2 changes at five topographical locations (anterior (AMT), exterior (EMT), posterior (PMT), central (CMT) and interior (IMT) medial tibia) and subsequent two averaged regions (covered by meniscus and exposed) were analyzed. At each location, full-thickness cartilage was studied in four sub-tissue zones (superficial, transitional, upper and lower radial zones). RESULTS Tissue degradation can be detected by measurable changes of T2, which is resolution- and orientation-dependent. T2 changes ranging from +28.82% increase (SZ, PMT) to -23.15% decrease (RZ1, AMT) in healthy to disease (8C), with the largest increase of T2 in the surface tissue. Various location-dependent patterns of degradation are found over the tibial surface, most commonly shown in early-stage OA (8C) on the anterior site, different from the posterior. Finally, the contralateral cartilage has specific degradation patterns, different from those in OA cartilage. CONCLUSIONS This is the first quantitative and highest multi-resolution characterization of cartilage at five topographical locations over the medial tibial plateau with fine zonal resolution in an animal model of OA, which would benefit future investigation of human OA in clinics.
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Affiliation(s)
- Farid Badar
- Department of Physics and Center for Biomedical Research, Oakland University, Rochester, MI 48309, USA
| | - Jihyun Lee
- Department of Physics and Center for Biomedical Research, Oakland University, Rochester, MI 48309, USA
| | - Xianggui Qu
- Department of Mathematics and Statistics, Oakland University, Rochester, MI 48309, USA
| | - Yang Xia
- Department of Physics and Center for Biomedical Research, Oakland University, Rochester, MI 48309, USA.
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Sivak WN, Imbriglia JE. Evaluation of Cartilage in the Wrist using Magnetic Resonance Imaging. Curr Rheumatol Rev 2019; 16:170-177. [PMID: 31804162 DOI: 10.2174/1573397115666190819153912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 06/18/2019] [Accepted: 08/20/2019] [Indexed: 11/22/2022]
Abstract
Wrist pain is a common patient complaint with a myriad of clinical conditions that can explain the underlying cause. Short of wrist arthroscopy, no technique other than formal wrist arthrotomy exists for direct examination of the hyaline cartilage coating the articular surfaces of the carpal bones. Magnetic resonance imaging (MRI) has been proven accurate in evaluating joint surfaces of large joints such as the shoulder, hip, and knee with articular cartilage surface thickness is in excess of 1 mm. However, in the carpus the thickness of the cartilage and the contours present have precluded accurate imaging. Advances in MRI technology over the last several decades are now making imaging of small joint surfaces, such as the carpus, an area worth revisiting. Herein we provide a review of these efforts with a specific focus on the evaluation of the wrist.
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Affiliation(s)
- Wesley N Sivak
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Joseph E Imbriglia
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, PA, United States
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Roux M, Hilbert T, Hussami M, Becce F, Kober T, Omoumi P. MRI T2 Mapping of the Knee Providing Synthetic Morphologic Images: Comparison to Conventional Turbo Spin-Echo MRI. Radiology 2019; 293:620-630. [PMID: 31573393 DOI: 10.1148/radiol.2019182843] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Background Use of a T2 mapping sequence in addition to the conventional knee MRI protocol increases sensitivity to early cartilage lesions but is time consuming. Purpose To test the in vitro validity of quantitative data from an accelerated parallel T2 mapping sequence (combined generalized autocalibrating partially parallel acquisition and model-based accelerated relaxometry by iterative nonlinear inversion [GRAPPATINI]) of the knee and to compare in vivo synthetic images generated with this sequence with those generated with conventional morphologic sequences. Materials and Methods T2 estimations with GRAPPATINI were validated in vitro in comparison with T2 estimations with routine multisection multiecho and reference standard single-section single-echo spin-echo T2 mapping sequences by using a Bland-Altman plot. Synthetic morphologic images (intermediate-weighted sequence, 34-msec echo time; T2-weighted sequence, 80-msec echo time) were compared in vivo with corresponding conventional morphologic turbo spin-echo 3-T sequences by three readers in consecutive patients recruited retrospectively from February to May 2018. Synthetic and conventional morphologic images were compared by using rates of interreader agreement, κ statistics, and rates of findings. Results T2 values with GRAPPATINI were accurate compared with those obtained with the reference single-section single-echo sequence, with slight T2 overestimation (2.7 msec). Sixty-one patients (mean age, 43 years ± 16 [standard deviation]; 32 men) were included. The rate of agreement when one reader used synthetic morphologic images and the other used conventional sequences was not inferior to the rate of agreement when all readers used conventional sequences (upper bounds of 95% confidence intervals of differences between rates of agreement ≤ 4.8%). Interreader agreement was similar for the conventional set alone, the synthetic set alone, and when readers used different sets (two-by-two differences between κ values for all items ≤ 0.15). The rates of findings were not different between synthetic and conventional image sets (all P ≥ .07) except for two items (femoral trochlear cartilage [3.0% vs 0.3%, P = .006] and joint effusion [0.3% vs 2.7%, P = .005]). Conclusion This T2 mapping sequence yields, in one acquisition, accurate T2 values and synthetic morphologic images that are comparable with those obtained with conventional turbo spin-echo sequences. © RSNA, 2019 Online supplemental material is available for this article. See also the editorial by Fritz in this issue.
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Affiliation(s)
- Marion Roux
- From the Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland (M.R., T.H., M.H., F.B., T.K., P.O.); Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland (T.H., T.K.); and LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (T.H., T.K.)
| | - Tom Hilbert
- From the Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland (M.R., T.H., M.H., F.B., T.K., P.O.); Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland (T.H., T.K.); and LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (T.H., T.K.)
| | - Mahmoud Hussami
- From the Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland (M.R., T.H., M.H., F.B., T.K., P.O.); Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland (T.H., T.K.); and LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (T.H., T.K.)
| | - Fabio Becce
- From the Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland (M.R., T.H., M.H., F.B., T.K., P.O.); Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland (T.H., T.K.); and LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (T.H., T.K.)
| | - Tobias Kober
- From the Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland (M.R., T.H., M.H., F.B., T.K., P.O.); Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland (T.H., T.K.); and LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (T.H., T.K.)
| | - Patrick Omoumi
- From the Department of Diagnostic and Interventional Radiology, Lausanne University Hospital and University of Lausanne, Rue du Bugnon 46, 1011 Lausanne, Switzerland (M.R., T.H., M.H., F.B., T.K., P.O.); Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland (T.H., T.K.); and LTS5, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland (T.H., T.K.)
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Seifeldein GS, Haseib A, Hassan HA, Ahmed G. Correlation of knee ultrasonography and Western Ontario and McMaster University (WOMAC) osteoarthritis index in primary knee osteoarthritis. THE EGYPTIAN JOURNAL OF RADIOLOGY AND NUCLEAR MEDICINE 2019. [DOI: 10.1186/s43055-019-0029-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Sasaki M, Uto Y, Yoshida T, Iwaanakuchi T, Muranaga F, Saigo Y, Kumamoto I. Secondary use of hospital information system data for safe bedside radiography in terms of patient factors. Health Inf Manag 2018; 48:24-32. [PMID: 29359587 DOI: 10.1177/1833358317749162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE: The purpose of this study was to use patient data gathered by a hospital information system (HIS) to improve the safe performance of bedside radiography. METHOD: Hierarchical cluster analysis was used to investigate the factors of hospitalised patients who had undergone radiography in the X-ray room or at the bedside. Logistic regression analysis was then performed to quantify patient factors and calculate the probability of undergoing general radiography or bedside radiography. RESULTS: Patients were grouped into six clusters by hierarchical cluster analysis on the basis of their factors. We found a remarkable difference between clusters for the ratio of bedside radiography. Results indicated that "types of transportation" and "level of mobility" related to the ratio of bedside radiography. Logistic regression analysis of the associations between the probability of undergoing bedside radiography and patient factors indicated that type of transportation and level of mobility were highly correlated with bedside radiography or general radiography. CONCLUSION: Our results suggested that the secondary use of HIS data for the quantitative evaluation of patient factors and implementation of those quantitative values in medical records may be useful for the safe performance of bedside radiography as well as providing a method of decision support for doctors to order bedside radiography.
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Affiliation(s)
| | - Yumiko Uto
- 2 Department of Medical Information Sciences, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
| | - Takuma Yoshida
- 3 Mathematics and Computer Science, Graduate School of Science and Engineering, Kagoshima University, Japan
| | | | | | | | - Ichiro Kumamoto
- 2 Department of Medical Information Sciences, Graduate School of Medical and Dental Sciences, Kagoshima University, Japan
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Badar F, Xia Y. Image interpolation improves the zonal analysis of cartilage T2 relaxation in MRI. Quant Imaging Med Surg 2017; 7:227-237. [PMID: 28516048 DOI: 10.21037/qims.2017.03.04] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND This project aimed to investigate the improvement in the detection of osteoarthritis (OA) in cartilage by the interpolation of T2 images, in the situation when the native MRI resolution is insufficient to resolve the depth-dependent T2 characteristics in articular cartilage (AC). METHODS Eighteen intact canine knee joints that were healthy or had mild (contralateral) or severe OA were T2-imaged in a 7T/20 cm MRI system at 200 µm/pixel resolution (macro-MRI). Two image analysis methods were used to interpolate the images to 100 µm/pixel, i.e., by Fourier-transforming the time-domain FID (Free Induction Decay) signal using the Varian NMR software and by interpolating the 2D T2 image using the ImageJ software. RESULTS The T2 profiles from 30 individual ROI of each healthy [6], mild [6] and OA [6] cartilage at 200 µm and the interpolated 100 µm resolutions were subdivided into two equal-thickness regions and three-equal thickness regions based on clinical MRI protocols. A new method divided the T2 profiles into three-unequal thickness zones according to the T2 profiles at 17.6 µm/pixel from the same cartilage imaged in a 7 Tesla/9 cm µMRI system. Both interpolation methods improved the depth-dependent T2 images/profiles in macro-MRI. The unequal zone division in T2 had better OA sensitivity than the equal zone division. The three-equal zone division of T2 profiles had better OA sensitivity than the two-equal zone division. The statistical significant difference between the healthy and mild OA cartilage is detected (P=0.0018) only by the unequal zone division method at 100 µm resolution. CONCLUSIONS Data interpolation improves the T2 sensitivity in MRI of cartilage OA. Unequal division of tissue thickness enables better early stage of OA detection than the equal division.
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Affiliation(s)
- Farid Badar
- Department of Physics and Center for Biomedical Research, Oakland University, Rochester, MI, USA
| | - Yang Xia
- Department of Physics and Center for Biomedical Research, Oakland University, Rochester, MI, USA
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Bashshur RL, Krupinski EA, Thrall JH, Bashshur N. The Empirical Foundations of Teleradiology and Related Applications: A Review of the Evidence. Telemed J E Health 2016; 22:868-898. [PMID: 27585301 PMCID: PMC5107673 DOI: 10.1089/tmj.2016.0149] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 07/10/2016] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Radiology was founded on a technological discovery by Wilhelm Roentgen in 1895. Teleradiology also had its roots in technology dating back to 1947 with the successful transmission of radiographic images through telephone lines. Diagnostic radiology has become the eye of medicine in terms of diagnosing and treating injury and disease. This article documents the empirical foundations of teleradiology. METHODS A selective review of the credible literature during the past decade (2005-2015) was conducted, using robust research design and adequate sample size as criteria for inclusion. FINDINGS The evidence regarding feasibility of teleradiology and related information technology applications has been well documented for several decades. The majority of studies focused on intermediate outcomes, as indicated by comparability between teleradiology and conventional radiology. A consistent trend of concordance between the two modalities was observed in terms of diagnostic accuracy and reliability. Additional benefits include reductions in patient transfer, rehospitalization, and length of stay.
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Affiliation(s)
| | | | - James H. Thrall
- Department of Radiology, Massachusetts General Hospital, Harvard, Boston, Massachusetts
| | - Noura Bashshur
- University of Michigan Health System, Ann Arbor, Michigan
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Meyers AB, Laor T, Sharafinski M, Zbojniewicz AM. Imaging assessment of patellar instability and its treatment in children and adolescents. Pediatr Radiol 2016; 46:618-36. [PMID: 26860094 DOI: 10.1007/s00247-015-3520-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 10/15/2015] [Accepted: 11/23/2015] [Indexed: 01/17/2023]
Abstract
Transient patellar dislocation is a common entity in children and adolescents, characterized by lateral dislocation of the patella, usually with spontaneous reduction. Many predisposing conditions have been described, including trochlear dysplasia, excessive lateral patellar tilt, patella alta and lateralization of the tibial tuberosity. Associated injuries are bone bruises of the patella and lateral femoral condyle, tears of the medial retinaculum that include the medial patellofemoral ligament (MPFL), tears of the vastus medialis obliquus muscle, injuries of articular cartilage, and intra-articular bodies. Children who are refractory to conservative management, have a large cartilage defect, or are at substantial risk for recurrent dislocations are candidates for surgical procedures to prevent future dislocations. Procedures can include MPFL repair or reconstruction, tibial tubercle repositioning and lateral retinacular release. The purpose of this review is to illustrate the imaging findings of transient patellar dislocation in the acute setting, the normal imaging appearance after surgical intervention, and post-surgical complications.
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Affiliation(s)
- Arthur B Meyers
- Department of Radiology, Children's Hospital of Wisconsin, Medical College of Wisconsin, P.O. Box 1997, MS 721, Milwaukee, WI, 53211-1997, USA.
| | - Tal Laor
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Mark Sharafinski
- Department of Radiology, Children's Hospital of Wisconsin, Medical College of Wisconsin, P.O. Box 1997, MS 721, Milwaukee, WI, 53211-1997, USA
| | - Andrew M Zbojniewicz
- Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
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Predictive value of semi-quantitative MRI-based scoring systems for future knee replacement: data from the osteoarthritis initiative. Skeletal Radiol 2015. [PMID: 26205761 DOI: 10.1007/s00256-015-2217-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate, in a confirmatory fashion, whether baseline and change from baseline to 24-month follow-up in cartilage damage, bone marrow lesions and meniscal damage are predictors of knee replacement (KR) in subjects with a high risk of osteoarthritis (OA), independent of the level of physical activity, symptom severity and radiographic abnormalities. METHODS Data from the Osteoarthritis Initiative's (OAI) baseline and 24-month follow-up knee MRIs of 115 patients (age range: 45-78 years; 48 % female; BMI: 20.9-48.7) were analyzed. Cartilage, bone marrow and menisci were semi-quantitatively scored according to the Whole-Organ Magnetic Resonance Imaging Score (WORMS) and Boston-Leeds Osteoarthritis Knee Score (BLOKS) systems in all compartments. Baseline and 24-month interval changes in structural tissue damage assessed by BLOKS and WORMS were used as predictors of KR independent of clinical and radiographic parameters using Cox hazard analysis. Adjustments were performed for age, gender, BMI and physical activity (Physical Activity Scale for the Elderly: PASE), Western Ontario and McMaster Questionnaire (WOMAC) total score and radiographic Kellgren-Lawrence (KL) score. RESULTS BLOKS and WORMS baseline cartilage scores were predictors of KR independent of the PASE, WOMAC and KL score. One score increase in the average baseline BLOKS full-thickness cartilage defect score was associated with a [hazard ratio (95 % CI)] 13.55 (3.61-50.89) times greater risk of KR independent of the PASE, WOMAC and KL score. Net reclassification improvements (NRIs) of the additional evaluation of 24-month follow-up MRI scores and assessment of changes were not significant for prediction of KR (NRI range: - 7.23 - 24.8 %). CONCLUSIONS The BLOKS cartilage score for full-thickness cartilage defects had the highest hazard for KR. Follow-up MRI changes in structural tissue damage, detected by BLOKS and WORMS cartilage, bone marrow or meniscus scores (up to 24 months) had no significant predictive value in addition to the baseline MRI.
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Razek AAKA, El-Basyouni SR. Ultrasound of knee osteoarthritis: interobserver agreement and correlation with Western Ontario and McMaster Universities Osteoarthritis. Clin Rheumatol 2015; 35:997-1001. [PMID: 26089198 DOI: 10.1007/s10067-015-2990-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/20/2015] [Accepted: 06/03/2015] [Indexed: 12/19/2022]
Abstract
The aim of this work was to assess the reproducibility of ultrasound findings of knee osteoarthritis and to correlate ultrasound findings with Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Prospective study was conducted upon 80 patients (56 F, 24 M; mean age 57 years) with primary osteoarthritis of knee joint. All patients underwent clinical assessment with calculation of WOMAC and high-resolution ultrasound of the knee joint. The ultrasound images were analyzed for cartilage thinning, osteophytes, synovial effusion, synovial proliferation, popliteal cyst, and meniscal protrusion. Image analysis was performed by two readers and linear regression analysis was used to determine association of ultrasound findings with WOMAC. There was excellent inter-observer agreement of both readers for cartilage thinning (k = 0.99, P = 0.001), osteophytes (k = 0.94, P = 0.001), synovial effusion (k = 0.98, P = 0.001), synovial thickening (k = 0.96, P = 0.001), popliteal cyst (k = 1.00, P = 0.001), and meniscal protrusion (k = 0.86, P = 0.001). There was significant association of WOMAC with cartilage changes (t = 3.406, 3.302, P = 0.001), osteophytes (t = 3.841, 3.006, P = 0.001), and synovial effusion (t = 4.140 and 2.787, P = 0.05) of both readers. We concluded that ultrasound is a reproducible method for assessment of knee osteoarthritis and well correlated with WOMAC.
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Affiliation(s)
- Ahmed Abdel Khalek Abdel Razek
- Department of Diagnostic Radiology, Mansoura Faculty of Medicine, Mansoura University, Elgomheryia Street, Mansoura, 35512, Egypt.
| | - Sherif Refaat El-Basyouni
- Department of Rheumatology and Rehabilitation, Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt
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