Accuracy Limits for the Thickness Measurement of the Hip Joint Cartilage in 3-D MR Images: Simulation and Validation

This paper describes a theoretical simulation method for ascertaining the inherent limits on the accuracy of thickness measurement of hip joint cartilage in 3-D MR images. This method can specify where and how thickness can be measured with sufficient accuracy under the certain MR imaging conditions...

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Vydané v:IEEE transactions on biomedical engineering Ročník 60; číslo 2; s. 517 - 533
Hlavní autori: Cheng, Yuanzhi, Guo, Changyong, Wang, Yadong, Bai, Jing, Tamura, Shinichi
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States IEEE 01.02.2013
Predmet:
Accuracy
Accuracy validation
Adult
Aged
articular cartilage
Biomedical measurements
Cartilage - anatomy & histology
Computer Simulation
Female
Gaussian second derivative filter
Head
Hip
Hip Joint - anatomy & histology
Humans
Image Processing, Computer-Assisted - methods
Imaging
Joints
Magnetic Resonance Imaging - methods
Male
Middle Aged
numerical simulation
Osteoarthritis - pathology
Phantoms, Imaging
point spread function (PSF)
Reproducibility of Results
Thickness measurement
ISSN:0018-9294, 1558-2531, 1558-2531
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Popis
Shrnutí:This paper describes a theoretical simulation method for ascertaining the inherent limits on the accuracy of thickness measurement of hip joint cartilage in 3-D MR images. This method can specify where and how thickness can be measured with sufficient accuracy under the certain MR imaging conditions. In the numerical simulation, we present a mathematical model for two adjacent sheet structures separated by a small distance, which simulated the femoral and acetabular cartilage and the joint space width in the hip joint; moreover, we perform the numerical simulation of MR imaging and postprocessing for thickness measurement. We especially focused on the effects of voxel anisotropy in MR imaging with variable orientation of cartilage surface and different joint space width. Also, thickness measurement is performed in MR imaging with isotropic voxel. The results from MR data with isotropic voxels show that accurate measurement of cartilage thickness at location of measured values of the hip joint space width and the cartilage thickness being two times as large as the voxel size or above should be possible. The simulation method is validated by comparison with the actual results obtained from the experiments using three phantoms, five normal cadaver hip specimens, and nine patients with osteoarthritis.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0018-9294
1558-2531
1558-2531
DOI:10.1109/TBME.2012.2230002