Abstract:
OBJECTIVE:The quantitative interpretation of hip cartilage magnetic resonance imaging (MRI) has been limited by the difficulty of identifying and delineating the cartilage in a three-dimensional (3D) dataset, thereby reducing its routine usage. In this paper a solution is suggested by unfolding the cartilage to planar two-dimensional (2D) maps on which both morphology and biochemical degeneration patterns can be investigated across the entire hip joint. DESIGN:Morphological TrueFISP and biochemical delayed gadolinium enhanced MRI of cartilage (dGEMRIC) hip images were acquired isotropically for 15 symptomatic subjects with mild or no radiographic osteoarthritis (OA). A multi-template based label fusion technique was used to automatically segment the cartilage tissue, followed by a geometric projection algorithm to generate the planar maps. The segmentation performance was investigated through a leave-one-out study, for two different fusion methods and as a function of the number of utilized templates. RESULTS:For each of the generated planar maps, various patterns could be seen, indicating areas of healthy and degenerated cartilage. Dice coefficients for cartilage segmentation varied from 0.76 with four templates to 0.82 with 14 templates. Regional analysis suggests even higher segmentation performance in the superior half of the cartilage. CONCLUSIONS:The proposed technique is the first of its kind to provide planar maps that enable straightforward quantitative assessment of hip cartilage morphology and dGEMRIC values. This technique may have important clinical applications for patient selection for hip preservation surgery, as well as for epidemiological studies of cartilage degeneration patterns. It is also shown that 10-15 templates are sufficient for accurate segmentation in this application.
journal_name
Osteoarthritis Cartilagejournal_title
Osteoarthritis and cartilageauthors
Siversson C,Akhondi-Asl A,Bixby S,Kim YJ,Warfield SKdoi
10.1016/j.joca.2014.08.012subject
Has Abstractpub_date
2014-10-01 00:00:00pages
1511-5issue
10eissn
1063-4584issn
1522-9653pii
S1063-4584(14)01242-4journal_volume
22pub_type
杂志文章abstract:OBJECTIVE:This systematic literature review aimed to evaluate the use of conventional radiography (CR) in hand osteoarthritis (OA) and to assess the metric properties of the different radiographic scoring methods. DESIGN:Medical literature databases up to November 2013 were systematically reviewed for studies reportin...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,评审
doi:10.1016/j.joca.2014.05.026
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:To determine the specificity and efficiency of the tamoxifen (TM)-induced Cre-recombination in articular chondrocytes of adult Col2a1-CreER(T2) transgenic mice. METHODS:Col2a1-CreER(T2) transgenic mice were bred with Rosa26 reporter mice. Two-week-old Col2a1-CreER(T2);R26R mice were administered TM for 5 day...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2007.08.001
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVE:To assess the effectiveness of short-wave diathermy (SWD) treatment in the management of knee osteoarthritis (KOA) and to assess whether the effects are related to the induction of a thermal effect. METHODS:A systematic literature search was conducted in PubMed, CINAHL, PEDro, EMBASE, SPORTdiscus and Scholar...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.joca.2012.05.005
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:To compare the sensitivity of WOMAC and the two added dimensions Sport and Recreation Function and Knee Related Quality of Life in subjects with radiographic knee OA to that in controls. To study the influence of age on the reported outcomes. DESIGN:Outcomes were compared between subjects having had meniscec...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1053/joca.1998.0153
更新日期:1999-03-01 00:00:00
abstract::The articular tissue generated on carbon fiber rods in rabbit knee joints after 75 days of intermittent active motion was compared with tissue generated on carbon fiber rods whose articular surfaces were covered with a free reversed periosteal graft. Both methods were effective in generating articular tissue; however,...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/s1063-4584(05)80077-9
更新日期:1994-12-01 00:00:00
abstract:OBJECTIVE:Test the hypothesis that greater baseline peak external knee adduction moment (KAM), KAM impulse, and peak external knee flexion moment (KFM) during the stance phase of gait are associated with baseline-to-2-year medial tibiofemoral cartilage damage and bone marrow lesion progression, and cartilage thickness ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2015.02.005
更新日期:2015-07-01 00:00:00
abstract:OBJECTIVES:Femoroacetabular impingement is proposed to cause early osteoarthritis (OA) in the non-dysplastic hip. We previously reported on the prevalence of femoral deformities in a young asymptomatic male population. The aim of this study was to determine the prevalence of both femoral and acetabular types of impinge...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2013.01.003
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVE:A recent genome-wide association study reported significant associations of genetic variants within the ALDH1A2 gene with osteoarthritis (OA) of the hand in European populations. However, these findings have not been well generalized to other joints, or to other populations. METHODS:We performed a two-stage ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2017.01.003
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVE:Infrapatellar fat pad of patients with osteoarthritis (OA) contains multipotent and highly clonogenic adipose-derived stem cells that can be isolated by low invasive methods. Moreover, nuclear and cytoplasmic cellular extracts have been showed to be effective in induction of cell differentiation and reprogram...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2012.10.007
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:Emerging evidence suggests that diabetes may be a risk factor for osteoarthritis (OA). However, previous results on the association between diabetes and all OA were conflicting. We aimed to comprehensively analyse the association between type II diabetes mellitus (T2DM) and osteoarthritis of the hand (HOA) s...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2016.04.005
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Arthroscopic partial meniscectomy (APM) is the most frequently performed orthopedic procedure. Functional outcomes of APM are variable, particularly among patients with underlying knee osteoarthritis. While most patients undergoing APM have knee magnetic resonance imaging (MRI) performed preoperatively, the ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2005.11.014
更新日期:2006-05-01 00:00:00
abstract::Five hundred patients with established, symptomatic limb joint OA have been recruited into an on-going prospective study of the natural history of the condition. Four hundred and fifteen patients (mean age 65.6 years, female to male ratio 2.05:1) were available for a full clinical and radiographic review 3 years after...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/s1063-4584(97)80002-7
更新日期:1997-03-01 00:00:00
abstract:OBJECTIVE:Until now there have been no appropriate models for metacarpophalangeal osteoarthritis (OA), even though OA in this joint is a significant medical and economic problem in horses. A good model would be useful to evaluate progression and treatment of OA, particularly in this joint. Therefore, we translated the ...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2007.11.010
更新日期:2008-08-01 00:00:00
abstract:OBJECTIVE:Cam hip morphology is associated with femoroacetabular impingement (FAI) syndrome and causes hip osteoarthritis (OA). We aimed to assess the prevalence of cam hip morphology in a sample representative of the general population, using a measure with a predefined diagnostic accuracy. DESIGN:Patients aged 16-65...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2018.09.019
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVE:To determine the magnitude of medial femoral cartilage deformation using ultrasonography (US) following walking and running in healthy individuals. DESIGN:Twenty-five healthy participants with no history of osteoarthritis or knee injury volunteered for this study. Medial femoral cartilage thickness was asses...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2016.12.026
更新日期:2017-06-01 00:00:00
abstract:OBJECTIVE:Sensitive biomarkers are needed to understand synovial response to therapy in osteoarthritis (OA). Dynamic, contrast-enhanced magnetic resonance imaging (DCE MRI) provides quantitative, novel measures of synovial inflammation. This exploratory study examined DCE-assessed synovial response to intra-articular c...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2014.05.024
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:To devise a reliable, sensitive method to measure joint space in vivo during dynamic loading. Additionally, to determine if dynamic joint space changes were related to the severity of long-term cartilage damage. DESIGN:Subjects were 23 adult foxhounds (18 experimental, 5 control). Experimental subjects had s...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2005.04.019
更新日期:2005-09-01 00:00:00
abstract:OBJECTIVE:Polyacrylamide hydrogel (PAAG) is a non-toxic, non-degradable synthetic product, used for years in the augmentation of soft tissues. Preliminary results in animals and humans have suggested long-lasting beneficial effects on symptoms of osteoarthritis (OA). The aim of this histopathological study was to inves...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2016.07.007
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:Establishment of a clonal bipotent chondroprogenitor cell line from adult mouse to provide a new tool for the elucidation of chondrogenesis in adult animal. DESIGN:A clonal cell line CL-1 was established from tibia of adult mouse. Differentiation of CL-1 was characterized in monolayer culture. Effects of gro...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2003.09.002
更新日期:2004-01-01 00:00:00
abstract:OBJECTIVE:miR-122 stimulates proliferation of growth plate chondrocytes whereas miR-451 stimulates terminal differentiation and matrix turnover. Here, we examined the potential of these microRNA as regulators of articular chondrocytes using an in vitro model of osteoarthritis. METHODS:miR-122 and miR-451 presence in r...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2020.09.004
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:To compare femorotibial cartilage thickness changes over a 2- vs a 1-year observation period in knees with radiographic knee osteoarthritis (OA). METHODS:One knee of 346 Osteoarthritis Initiative (OAI) participants was studied at three time points [baseline (BL), year-1 (Y1), year-2 (Y2) follow-up]: 239 usin...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2010.10.022
更新日期:2011-01-01 00:00:00
abstract:OBJECTIVE:Investigate whether body mass index (BMI), comorbidity, gender and age predict patient-reported functional limitation 2- and 5-years after primary Total Knee Arthroplasty (TKA). METHODS:Overall moderate-severe activity limitation was defined as > or = 2 activities (walking, stairs, rising from chair) with mo...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2009.12.001
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVE:To determine in a 48-month longitudinal study the association of thigh muscle cross-sectional area (CSA) and strength on progression of morphologic knee cartilage degeneration using 3T magnetic resonance imaging (MRI). DESIGN:Seventy Osteoarthritis Initiative (OAI) subjects aged 50-60 years, with no radiogra...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2016.07.004
更新日期:2016-12-01 00:00:00
abstract::The human masticatory system consists of a mandible which is able to move with respect to the skull at its bilateral temporomandibular joint (TMJ) through contractions of the masticatory muscles. Like other synovial joints, the TMJ is loaded mechanically during function. The articular surface of the mandibular condyle...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,评审
doi:10.1016/j.joca.2009.04.025
更新日期:2009-11-01 00:00:00
abstract:OBJECTIVE:Osteophytes are non-neoplastic osteo-cartilaginous protrusions growing at the margins of osteoarthritic joints. They can not only be considered as in situ repair tissue, but also represent an excellent in vivo model for induced cartilage repair processes. Our focus was to identify different steps of osteophyt...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1053/joca.2002.0873
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:The functional index for hand osteoarthritis (FIHOA), a 10-item investigator-administered questionnaire, was validated in 1995. It is relevant, reliable and has good external and internal validities. OBJECTIVE:To assess the sensitivity to change over time of the FIHOA. PATIENTS/METHODS: PATIENTS:symptomat...
journal_title:Osteoarthritis and cartilage
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1053/joca.2000.0332
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:We investigate the potential of a prototype multimodality arthroscope, combining ultrasound, optical coherence tomography (OCT) and arthroscopic indentation device, for assessing cartilage lesions, and compare the reliability of this approach with conventional arthroscopic scoring ex vivo. DESIGN:Areas of in...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2016.12.007
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVE:To quantify tibial cancellous bone changes over 24 months in patients with medial compartment knee osteoarthritis (OA) subdivided into those with slow or detectable joint space narrowing (JSN). METHOD:Digitised macroradiographs (4x) were obtained at baseline and 24 months from 40 patients (F:26) and subdivid...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2005.01.007
更新日期:2005-06-01 00:00:00
abstract:OBJECTIVE:To compare the 2D and 3D MOCART system obtained with 9.4 T high-field magnetic resonance imaging (MRI) for the ex vivo analysis of osteochondral repair in a translational model and to correlate the data with semiquantitative histological analysis. METHODS:Osteochondral samples representing all levels of repa...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章
doi:10.1016/j.joca.2014.05.027
更新日期:2014-10-01 00:00:00
abstract::Variations among joints in the initiation and progression of degeneration may be explained, in part, by metabolic, biochemical and biomechanical differences. Compared to the cartilage in the knee joint, ankle cartilage has a higher content of proteoglycans and water, as well as an increased rate of proteoglycan turnov...
journal_title:Osteoarthritis and cartilage
pub_type: 杂志文章,评审
doi:10.1016/j.joca.2004.11.006
更新日期:2005-02-01 00:00:00