Diffusion MRI of the neck of the femur in Legg-Calve-Perthes disease: A preliminary study

Boutault, J.-R.; Baunin, C.; Bérard, Emilie; Vial, J.; Labarre, David; Doménech, Carlos Sanchis; Gauzy, Jérôme Sales de; Sans, N.

doi:10.1016/j.diii.2012.10.003

Cited by 16 publications

(8 citation statements)

References 31 publications

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“…To the best of our knowledge, studies on the validity of these classification methods in MRI are scarce. There are studies on findings that may have other prognostic importance by examining MRI findings [7][8][9][10]23]. In addition to illuminating this deficiency, this study has crucial implications in terms of reflecting the views of radiologists other than orthopedists.…”

Section: Discussionmentioning

confidence: 98%

“…Although MRI is an expensive method and cannot be used frequently due to the need for sedation in pediatric patients to ensure immobility, it is an advantageous imaging method that can show hip joint compatibility in all aspects. In the literature, it is possible to discover studies reporting findings that can predict prognosis using MRI [4,[7][8][9][10]. However, there is still no defined and validated classification method for MRI.…”

Section: Introductionmentioning

confidence: 99%

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Reliability of two common classifications for Legg-Calvé-Perthes disease if using MRI: Pediatric orthopedists vs. radiologists

Erkuş¹,

Kalenderer²,

Turgut³

et al. 2022

Med-Science

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In patients with Legg-Calvé-Perthes (LCP), the Catterall and Herring classifications based on standard hip radiographs are frequently used. In this study, the compatibility of classification systems in hip radiographs and MR images of LCP patients was examined among specialist working in the departments of Orthopedics and Radiology, and the reliability was investigated. In this study, which included 37 Perthes patients, two separate presentations were prepared in which the radiological imaging of the patients was determined by drawing lots. Six experienced specialists were selected as observers, three of whom were radiologist and three of pediatric orthopedists. Each presentations were sent to the observers one month apart. They were asked to categorize visual data. Data were evaluated with percent agreement (PA) and Gwet's AC1 method. In the Catterall classification, agreement among pediatric orthopedists decreased in MRI examination, while an increase was observed among radiologists. In the Herring classification, while pediatric orthopedists remained at a similar level, radiologists' inter-observer reliability increased. When the intra-observer reliability was examined, it was observed that the radiologists in the Catterall classification and the orthopedists in the Herring classification were more stable in the evaluations made with MRI. The usability of both classification systems, which provide prognostic prediction, in MRI examinations is a crucial unknown. It is fruitful that both radiologists and pediatric orthopedists work together in novel classification systems to be created using MRI.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Reliability of two common classifications for Legg-Calvé-Perthes disease if using MRI: Pediatric orthopedists vs. radiologists

Erkuş¹,

Kalenderer²,

Turgut³

et al. 2022

Med-Science

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“…22 Computation tools have been developed to quantify bone ADC values, which are comparable to conventional short tau inversion recovery (STIR) sequences. 21 DWI has been shown to be useful in the assessment of hip ischaemia in patients with LeggeCalveePerthes disease, 24 and in particular, median ADC ratios have reported as a reproducible means of assessing hip ischaemia.…”

Section: Diffusion-weighted Imagingmentioning

confidence: 99%

Quantifying bone structure, micro-architecture, and pathophysiology with MRI

2018

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The radiology of bone has been transformed by magnetic resonance imaging, which has the ability to interrogate bone's complex architecture and physiology. New techniques provide information about both the macrostructure and microstructure of bone ranging from micrometre detail to the whole skeleton. Furthermore functional information about bone physiology can be used to detect disease early before structural changes occur. The future of bone imaging is in quantifying the anatomical and functional information to diagnose and monitor disease more precisely. This review explores the state of the art in quantitative MRI bone imaging.

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“…Statistically significant differences were found between the control and study groups. Such types of methods were proposed initially for treating the Legg–Perthes–Calvé disease [71] . Multiple researchers believed that the thickness of the articular cartilage of the hip and the corresponding apparent diffusion coefficient measured by MRI are responsive to the articular cartilage changes, which can predict an early collapse of the ONFH, especially in the quantization of epiphysis development [72] , [73] .…”

Section: Hip Cartilage Thickness and Diffusion Coefficient Analysismentioning

confidence: 99%

Predicting the collapse of the femoral head due to osteonecrosis: From basic methods to application prospects

Chen

Hong

Fang

et al. 2017

Journal of Orthopaedic Translation

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SummaryCollapse of the femoral head is the most significant pathogenic complication arising from osteonecrosis of the femoral head. It is related to the disruption of the maintenance of cartilage and bone, and results in an impaired function of the vascular component. A method for predicting the collapse of the femoral head can be treated as a type of clinical index. Efforts in recent years to predict the collapse of the femoral head due to osteonecrosis include multiple methods of radiographic analysis, stress distribution analysis, finite element analysis, and other innovative methods. Prediction methods for osteonecrosis of the femoral head complications originated in Western countries and have been further developed in Asia. Presently, an increasing number of surgeons have chosen to focus on surgical treatments instead of prediction methods to guide more conservative interventions, resulting in a growing reliance on the more prevalent and highly effective total hip arthroplasty, rather than on more conservative treatments. In this review, we performed a literature search of PubMed and Embase using search terms including “osteonecrosis of femoral head,” “prediction,” “collapse,” “finite element,” “radiographic images,” and “stress analysis,” exploring the basic prediction method and prospects for new applications.

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Diffusion MRI of the neck of the femur in Legg-Calve-Perthes disease: A preliminary study

Cited by 16 publications

References 31 publications

Reliability of two common classifications for Legg-Calvé-Perthes disease if using MRI: Pediatric orthopedists vs. radiologists

Reliability of two common classifications for Legg-Calvé-Perthes disease if using MRI: Pediatric orthopedists vs. radiologists

Quantifying bone structure, micro-architecture, and pathophysiology with MRI

Predicting the collapse of the femoral head due to osteonecrosis: From basic methods to application prospects

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