Equivalence and precision of knee cartilage morphometry between different segmentation teams, cartilage regions, and MR acquisitions.
Equivalence and precision of knee cartilage morphometry between different segmentation teams, cartilage regions, and MR acquisitions.
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DOI：
10.1016/j.joca.2012.04.005
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发表时间：
2012-08
影响因子：
7
通讯作者：
Tamez-Pena, J.
中科院分区：
文献类型：
--
作者：
Schneider, E.;Nevitt, M.;McCulloch, C.;Cicuttini, Flavia M.;Duryea, J.;Eckstein, F.;Tamez-Pena, J.
To compare precision and evaluate equivalence of femorotibial cartilage volume (VC) and mean cartilage thickness (ThCtAB.Me) from independent segmentation teams using identical MR images from three series: sagittal 3D Dual Echo in the Steady State (DESS), coronal multi-planar reformat (DESS-MPR) of DESS and coronal 3D Fast Low Angle SHot (FLASH). 19 subjects underwent test-retest MR imaging at 3 Tesla. Four teams segmented the cartilage using prospectively defined plate regions and rules. Mixed models analysis of the pooled data were used to evaluate the effect of acquisition, team and plate on precision and Pearson correlations and mixed models to evaluate equivalence. Segmentation team differences dominated measurement variability in most cartilage regions for all image series. Precision of VC and ThCtAB.Me differed significantly by team and cartilage plate, but not between FLASH and DESS. Mean values of VC and ThCtAB.Me differed by team (P<0.05) for DESS, FLASH and DESS-MPR, FLASH VC was 4–6% larger than DESS in the medial tibia and lateral central femur, and FLASH ThCtAB.Me was 5–6% larger in the medial tibia, but 4–8% smaller in the medial central femur. Correlations betweenDESS and FLASH for VC and ThCtAB.Me were high (r=0.90–0.97), except for DESS versus FLASH medial central femur ThCtAB.Me (r=0.81–0.83). Cartilage morphology metrics from different image contrasts had similar precision, were generally equivalent, and may be combined for cross-sectional analyses if potential systematic offsets are accounted for. Data from different teams should not be pooled unless equivalence is demonstrated for cartilage metrics of interest.
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影响因子：
7
作者：
Duryea, J.;Neumann, G.;Lang, P.
通讯作者：
Lang, P.
DOI：
10.1002/art.24791
发表时间：
2009-09-15
期刊：
ARTHRITIS & RHEUMATISM-ARTHRITIS CARE & RESEARCH
影响因子：
--
作者：
Eckstein, Felix;Benichou, Olivier;Hunter, David
通讯作者：
Hunter, David
影响因子：
2.1
作者：
Brem, M. H.;Lang, P. K.;Duryea, J.
通讯作者：
Duryea, J.
影响因子：
27.4
作者：
Eckstein, F.;Buck, R. J.;Le Graverand, M-P Hellio
通讯作者：
Le Graverand, M-P Hellio
影响因子：
27.4
作者：
Cicuttini, FM;Wluka, A;Stuckey, SL
通讯作者：
Stuckey, SL