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Zuchuat J, Manzano A, Decco O. Image-based analysis of trabecular bone in osteoporotic rabbits: correlation of morphological features and bone mineral density profile. Biomed Phys Eng Express 2019; 6:015005. [PMID: 33438593 DOI: 10.1088/2057-1976/ab575f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To analyse a set of morphological features from digital radiographs (RX) and bone mineral density (BMD) values estimated from quantitative computerized tomography scans (QCT scans) of the knee joint of an osteoporotic rabbits, and to determine the relationship and correlation of these variables to be considered as an alternative diagnosis method. METHODS The knee joint of rabbits (N = 9 ovariectomized and injected with of methylprednisolone sodium succinate (OVX + MPSS) and 3 sham operated healthy controls) were subjected to radiographic examination before the beginning of the study and after 6 weeks; after sacrifice, they were immediately scanned with a 64-channel CT. A set of morphological features was extracted from RX images and then subjected to Principal Component Analysis (PCA); BMD-values were calculated at different depths from the articular surface of the femur and the tibia. The selected morphological variables and the BMD values were correlated in order to determine useful information in medical diagnostics. RESULTS Ten morphological variables explained 80.39% of the total variability, but only some of them demonstrated significant differences between baseline and OVX + SSMP states and between OVX + SSMP and control. Spearman analysis showed higher positive and negative correlation of these parameters among them (r = 0.67, 0.81, 0.83 and 1); and a moderate correlation with the BMD values (r = 0.50, 0.52, 0.52 and 0.55) during the progression of osteoporosis (OP). CONCLUSION The Spearman's rank test supported the overall significant correlation between both, the morphological features and BMD values, making them as a reliable alternative option to the diagnosis of osteoporosis.
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Affiliation(s)
- Jésica Zuchuat
- Bioimplants Laboratory, Faculty of Engineering-National University of Entre Rios, Oro Verde-Entre Rios, Argentina
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Hirvasniemi J, Gielis WP, Arbabi S, Agricola R, van Spil WE, Arbabi V, Weinans H. Bone texture analysis for prediction of incident radiographic hip osteoarthritis using machine learning: data from the Cohort Hip and Cohort Knee (CHECK) study. Osteoarthritis Cartilage 2019; 27:906-914. [PMID: 30825609 DOI: 10.1016/j.joca.2019.02.796] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/27/2019] [Accepted: 02/10/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess the ability of radiography-based bone texture variables in proximal femur and acetabulum to predict incident radiographic hip osteoarthritis (rHOA) over a 10 years period. DESIGN Pelvic radiographs from CHECK at baseline (987 hips) were analyzed for bone texture using fractal signature analysis (FSA) in proximal femur and acetabulum. Elastic net (machine learning) was used to predict the incidence of rHOA (including Kellgren-Lawrence grade (KL) ≥ 2 or total hip replacement (THR)), joint space narrowing score (JSN, range 0-3), and osteophyte score (OST, range 0-3) after 10 years. Performance of prediction models was assessed using the area under the receiver operating characteristic curve (ROC AUC). RESULTS Of the 987 hips without rHOA at baseline, 435 (44%) had rHOA at 10-year follow-up. Of the 667 hips with JSN grade 0 at baseline, 471 (71%) had JSN grade ≥ 1 at 10-year follow-up. Of the 613 hips with OST grade 0 at baseline, 526 (86%) had OST grade ≥ 1 at 10-year follow-up. AUCs for the models including age, gender, and body mass index (BMI) to predict incident rHOA, JSN, and OST were 0.59, 0.54, and 0.51, respectively. The inclusion of bone texture variables in the models improved the prediction of incident rHOA (ROC AUC 0.68 and 0.71 when baseline KL was also included in the model) and JSN (ROC AUC 0.62), but not incident OST (ROC AUC 0.52). CONCLUSION Bone texture analysis provides additional information for predicting incident rHOA or THR over 10 years.
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Affiliation(s)
- J Hirvasniemi
- Center for Machine Vision and Signal Analysis, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - W P Gielis
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - S Arbabi
- Department of Computer Engineering, Faculty of Engineering, University of Zabol, Zabol, Iran.
| | - R Agricola
- Department of Orthopaedics, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - W E van Spil
- Department of Rheumatology & Clinical Immunology, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - V Arbabi
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Biomechanical Engineering, Delft University of Technology, Delft, the Netherlands; Department of Mechanical Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran.
| | - H Weinans
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Biomechanical Engineering, Delft University of Technology, Delft, the Netherlands.
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Lima ALCLDA, Miranda SC, Vasconcelos HFOD. Radiographic anatomy of the proximal femur: femoral neck fracture vs. transtrochanteric fracture. Rev Bras Ortop 2017; 52:651-657. [PMID: 29234647 PMCID: PMC5720858 DOI: 10.1016/j.rboe.2017.10.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 10/04/2016] [Indexed: 11/29/2022] Open
Abstract
Objective To evaluate the correlation between radiographic parameters of the proximal femur with femoral neck fractures or transtrochanteric fractures. Methods Cervicodiaphyseal angle (CDA), femoral neck width (FNW), hip axis length (HAL), and acetabular tear drop distance (ATD) were analyzed in 30 pelvis anteroposterior view X-rays of patients with femoral neck fractures (n = 15) and transtrochanteric fractures (n = 15). The analysis was performed by comparing the results of the X-rays with femoral neck fractures and with transtrochanteric fractures. Results No statistically significant differences between samples were observed. Conclusion There was no correlation between radiographic parameters evaluated and specific occurrence of femoral neck fractures or transtrochanteric fractures.
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Lima ALCLDA, Miranda SC, Vasconcelos HFOD. Anatomia radiográfica do fêmur proximal: fratura de colo vs . fratura transtrocantérica. Rev Bras Ortop 2017. [DOI: 10.1016/j.rbo.2016.10.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Dhainaut A, Hoff M, Syversen U, Haugeberg G. Technologies for assessment of bone reflecting bone strength and bone mineral density in elderly women: an update. ACTA ACUST UNITED AC 2016; 12:209-16. [PMID: 26900798 DOI: 10.2217/whe.15.94] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Reduced bone mineral density is a strong risk factor for fracture. The WHO's definition of osteoporosis is based on bone mineral density measurements assessed by dual x-ray absorptiometry. Several on other techniques than dual x-ray absorptiometry have been developed for quantitative assessment of bone, for example, quantitative ultrasound and digital x-ray radiogrammetry. Some of these techniques may also capture other bone properties than bone mass that contribute to bone strength, for example, bone porosity and microarchitecture. In this article we give an update on technologies which are available for evaluation primarily of bone mass and bone density, but also describe methods which currently are validated or are under development for quantitative assessment of other bone properties.
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Affiliation(s)
- Alvilde Dhainaut
- Department of Neuroscience (INM) Norwegian University of Science & Technology (NTNU), Trondheim, Norway.,Department of Public Health & General Practice (ISM), Norwegian University of Science & Technology, Trondheim Norway
| | - Mari Hoff
- Department of Public Health & General Practice (ISM), Norwegian University of Science & Technology, Trondheim Norway.,Department of Rheumatology, St Olav's Hospital, Trondheim, Norway
| | - Unni Syversen
- Department of Cancer Research & Molecular Medicine (IKM), NTNU, Trondheim, Norway.,Department of Endocrinology, St. Olav's Hospital, Norway
| | - Glenn Haugeberg
- Department of Neuroscience (INM) Norwegian University of Science & Technology (NTNU), Trondheim, Norway.,Department of Rheumatology, Hospital of Southern Norway, Kristiansand S, Norway
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Abstract
Vertebral fractures are one of the most common fractures associated with skeletal fragility and can cause as much morbidity as hip fractures. However, the epidemiology of vertebral fractures differs from that of osteoporotic fractures at other skeletal sites in important ways, largely because only one quarter to one-third of vertebral fractures are recognized clinically at the time of their occurrence and otherwise require lateral spine imaging to be recognized. This article first reviews the prevalence and incidence of clinical and radiographic vertebral fractures in populations across the globe and secular trends in the incidence of vertebral fracture over time. Next, associations of vertebral fractures with measures of bone mineral density and bone microarchitecture are reviewed followed by associations of vertebral fracture with various textural measures of trabecular bone, including trabecular bone score. Finally, the article reviews clinical risk factors for vertebral fracture and the association of vertebral fractures with morbidity, mortality, and other subsequent adverse health outcomes.
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Affiliation(s)
- John T Schousboe
- Park Nicollet Osteoporosis Center, Park Nicollet Clinic, HealthPartners, Minneapolis, MN, USA; Division of Health Policy and Management, School of Public Health, University of Minnesota, Minneapolis, MD, USA.
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Thevenot J, Hirvasniemi J, Pulkkinen P, Määttä M, Korpelainen R, Saarakkala S, Jämsä T. Assessment of risk of femoral neck fracture with radiographic texture parameters: a retrospective study. Radiology 2014; 272:184-91. [PMID: 24620912 DOI: 10.1148/radiol.14131390] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To investigate whether femoral neck fracture can be predicted retrospectively on the basis of clinical radiographs by using the combined analysis of bone geometry, textural analysis of trabecular bone, and bone mineral density (BMD). MATERIALS AND METHODS Formal ethics committee approval was obtained for the study, and all participants gave informed written consent. Pelvic radiographs and proximal femur BMD measurements were obtained in 53 women aged 79-82 years in 2006. By 2012, 10 of these patients had experienced a low-impact femoral neck fracture. A Laplacian-based semiautomatic custom algorithm was applied to the radiographs to calculate the texture parameters along the trabecular fibers in the lower neck area for all subjects. Intra- and interobserver reproducibility was calculated by using the root mean square average coefficient of variation to evaluate the robustness of the method. RESULTS The best predictors of hip fracture were entropy (P = .007; reproducibility coefficient of variation < 1%), the neck-shaft angle (NSA) (P = .017), and the BMD (P = .13). For prediction of fracture, the area under the receiver operating characteristic curve was 0.753 for entropy, 0.608 for femoral neck BMD, and 0.698 for NSA. The area increased to 0.816 when entropy and NSA were combined and to 0.902 when entropy, NSA, and BMD were combined. CONCLUSION Textural analysis of pelvic radiographs enables discrimination of patients at risk for femoral neck fracture, and our results show the potential of this conventional imaging method to yield better prediction than that achieved with dual-energy x-ray absorptiometry-based BMD. The combination of the entropy parameter with NSA and BMD can further enhance predictive accuracy.
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Affiliation(s)
- Jérôme Thevenot
- From the Department of Medical Technology (J.T., J.H., P.P., M.M., R.K., S.S., T.J.) and Institute of Health Sciences (R.K.), University of Oulu, PO Box 5000, Oulu 90014, Finland; Department of Sports and Exercise Medicine, Oulu Deaconess Institute, Oulu, Finland (R.K.); Institute of Health Sciences (R.K.) and Department of Diagnostic Radiology (S.S., T.J.), Medical Research Center Oulu, Oulu University Hospital and University of Oulu (J.T., J.H., P.P., M.M., R.K., S.S., T.J.)
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