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Onyi N. Irrechukwu

Researcher at National Institutes of Health

Publications -  13
Citations -  222

Onyi N. Irrechukwu is an academic researcher from National Institutes of Health. The author has contributed to research in topics: Computer science & Medicine. The author has an hindex of 6, co-authored 8 publications receiving 179 citations.

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Nondestructive assessment of engineered cartilage constructs using near-infrared spectroscopy

TL;DR: The ability of NIRS to monitor macromolecular content of cartilage constructs is demonstrated and is the first step towards employing NIR to assess engineered cartilage in situ.
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Mapping proteoglycan-bound water in cartilage: improved specificity of matrix assessment using multiexponential transverse relaxation analysis

TL;DR: The results demonstrate the feasibility of performing imaging‐based multiexponential analysis of transverse relaxation data to map PG in cartilage and demonstrate the accuracy and precision of the determination was within 2%, which is well‐within the observed tissue differences.
Journal ArticleDOI

Improved MR-based characterization of engineered cartilage using multiexponential T2 relaxation and multivariate analysis

TL;DR: Two new approaches for the evaluation of tissue engineered constructs using MR provide improved sensitivity to changes in matrix development and specificity to matrix composition in tissue engineered cartilage and for extension to other tissue engineering constructs.
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Multivariate analysis of cartilage degradation using the support vector machine algorithm.

TL;DR: Results, combined with the previous investigation of Gaussian cluster‐based tissue discrimination, indicate that the combinations (T1, km) and (T 1, km, ADC) may emerge as particularly useful for characterization of early cartilage degradation.