Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (28/28 displayed)

  • 2023Broadband scattering properties of articular cartilage zones and their relationship with the heterogenous structure of articular cartilage extracellular matrix5citations
  • 2021Infrared fiber-optic spectroscopy detects bovine articular cartilage degeneration14citations
  • 2020Comparison of water, hydroxyproline, uronic acid and elastin contents of bovine knee ligaments and patellar tendon and their relationships with biomechanical properties20citations
  • 2019T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilagecitations
  • 2019T2* and quantitative susceptibility mapping in an equine model of post-traumatic osteoarthritis: assessment of mechanical and structural properties of articular cartilage15citations
  • 2019Arthroscopic determination of cartilage proteoglycan content and collagen network structure with near-infrared spectroscopy34citations
  • 2019Effects of body mass on microstructural features of the osteochondral unit: A comparative analysis of 37 mammalian species16citations
  • 2018Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments23citations
  • 2017Contrast-enhanced computed tomography enables quantitative evaluation of tissue properties at intrajoint regions in cadaveric knee cartilage22citations
  • 2017Corrigendum to “Multimodality scoring of chondral injuries in the equine fetlock joint ex vivo” [Osteoarthritis Cartilage 25 (5) (2017 May) 790–798] (S1063458416304666), (10.1016/j.joca.2016.12.007))1citations
  • 2017Tissue viscoelasticity is related to tissue composition but may not fully predict the apparent-level viscoelasticity in human trabecular bone – an experimental and finite element study26citations
  • 2016Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation7citations
  • 2015Ultrasound backscattering is anisotropic in bovine articular cartilage7citations
  • 2015Inter-individual changes in cortical bone three-dimensional microstructure and elastic coefficient have opposite effects on radial sound speed4citations
  • 2014Deformation of articular cartilage during static loading of a knee joint - experimental and finite element analysis104citations
  • 2013New disposable forehead electrode set with excellent signal quality and imaging compatibility24citations
  • 2007Effect of human trabecular bone composition on its electrical properties45citations
  • 2006Interrelationships between electrical properties and microstructure of human trabecular bone40citations
  • 2006T2 relaxation time mapping reveals age- and species-related diversity of collagen network architecture in articular cartilage104citations
  • 2006Collagen network primarily controls poisson's ratio of bovine articular cartilage in compression133citations
  • 2005Prediction of mechanical properties of human trabecular bone by electrical measurements52citations
  • 2005Improvement of arthroscopic cartilage stiffness probe using amorphous diamond coating8citations
  • 2004Prediction of biomechanical properties of articular cartilage with quantitative magnetic resonance imaging116citations
  • 2003Structure-function relationships in enzymatically modified articular cartilage118citations
  • 2003Electrical and dielectric properties of bovine trabecular bone - Relationships with mechanical properties and mineral density50citations
  • 2002Ultrasonic characterization of articular cartilagecitations
  • 2002Comparison of the equilibrium response of articular cartilage in unconfined compression, confined compression and indentation369citations
  • 2000Quantitative MR microscopy of enzymatically degraded articular cartilagecitations

Places of action

Chart of shared publication
Mirhashemi, Arash
1 / 1 shared
Paakkari, Petri
1 / 1 shared
Kienle, Alwin
1 / 1 shared
Foschum, Florian
1 / 1 shared
Nippolainen, Ervin
2 / 2 shared
Kafian-Attari, Iman
1 / 1 shared
George, Akuroma
1 / 1 shared
Bergmann, Florian
1 / 1 shared
Afara, Isaac
5 / 5 shared
Zimmermann, Boris
1 / 2 shared
Kohler, Achim
1 / 2 shared
Saarakkala, Simo
3 / 5 shared
Virtanen, Vesa
1 / 1 shared
Shaikh, Rubina
1 / 1 shared
Solheim, Johanne
1 / 1 shared
Tafintseva, Valeria
1 / 1 shared
Rieppo, Lassi
2 / 3 shared
Torniainen, Jari
1 / 1 shared
Ristaniemi, A.
1 / 1 shared
Stenroth, L.
1 / 1 shared
Finnilä, M. A. J.
1 / 1 shared
Korhonen, R. K.
5 / 6 shared
Paakkonen, T.
1 / 1 shared
Visser, Jetze
2 / 5 shared
Nykänen, Olli
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Te Moller, Nikae C. R.
1 / 1 shared
Nissi, Mikko J.
2 / 3 shared
Ketola, Juuso H.
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Sarin, Jaakko K.
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Mancini, Irina A. D.
2 / 3 shared
Brommer, Harold
2 / 5 shared
Tiitu, Virpi
4 / 4 shared
Malda, Jos
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Leskinen, Henri
1 / 1 shared
René Van Weeren, P.
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Sarin, J. K.
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Leskinen, H.
1 / 2 shared
Brommer, H.
2 / 3 shared
Visser, J.
1 / 4 shared
Mancini, I. A. D.
2 / 2 shared
Nissi, M. J.
2 / 3 shared
Tiitu, V.
1 / 2 shared
Te Moller, N. C. R.
1 / 1 shared
Van Weeren, P. R.
2 / 4 shared
Ketola, J. H.
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Malda, J.
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Nykänen, O.
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Van Weeren, P. René
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Rieppo, L.
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Van Rijen, M. H. P.
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Weinans, H.
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Pouran, B.
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Kik, M.
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Braganca, F. M. Serra
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Shmueli, Karin
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Kolehmainen, Ville
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Snyder, Brian D.
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Joukainen, Antti
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Jurvelin, Jukka S.
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Kokkonen, Harri T.
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Honkanen, Juuso T. J.
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Stewart, Rachel C.
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Grinstaff, Mark W.
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Puhakka, P. H.
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Inkinen, S. I.
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Argüelles, D.
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Saarakkala, S.
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Jurvelin, J. S.
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Tanska, P.
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Ojanen, X.
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Isaksson, H.
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Magnusson, S. P.
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Malo, M. K. H.
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Koistinen, A. P.
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Väänänen, S. P.
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Grassi, L.
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Ribel-Madsen, S. M.
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Isaksson, Hanna
1 / 17 shared
Inkinen, Satu I.
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Ojanen, Xiaowei
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Malo, Markus K. H.
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Virén, Tuomas
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Liukkonen, Jukka
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Eneh, Chibuzor T. M.
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Salo, J.
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Mononen, M. E.
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Halonen, K. S.
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Mervaala, Esa
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Myllymaa, Sami
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Myllymaa, Katja
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Lappalainen, Reijo
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Lepola, Pasi
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Hukkanen, Taina
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Hakulinen, M. A.
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Lammi, M. J.
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Sierpowska, J.
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Lappalainen, R.
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Day, J. S.
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Kiviranta, I.
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Laasanen, M. S.
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Nieminen, M. T.
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Rieppo, J.
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Rieppo, Jarno
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Korhonen, Rami K.
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Kiviranta, Panu
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Julkunen, Petro
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Voutilainen, Tanja
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Nieminen, Miika T.
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Helminen, Heikki J.
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Laasanen, Mikko S.
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Silvennoinen, Johanna
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Kovanen, Vuokko
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Hyttinen, Mika M.
1 / 1 shared
Sierpowska, Joanna
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Helminen, H. J.
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Nieminen, H. J.
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Hirvonen, J.
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Hakumäki, Juhana M.
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Co-Authors (by relevance)

  • Mirhashemi, Arash
  • Paakkari, Petri
  • Kienle, Alwin
  • Foschum, Florian
  • Nippolainen, Ervin
  • Kafian-Attari, Iman
  • George, Akuroma
  • Bergmann, Florian
  • Afara, Isaac
  • Zimmermann, Boris
  • Kohler, Achim
  • Saarakkala, Simo
  • Virtanen, Vesa
  • Shaikh, Rubina
  • Solheim, Johanne
  • Tafintseva, Valeria
  • Rieppo, Lassi
  • Torniainen, Jari
  • Ristaniemi, A.
  • Stenroth, L.
  • Finnilä, M. A. J.
  • Korhonen, R. K.
  • Paakkonen, T.
  • Visser, Jetze
  • Nykänen, Olli
  • Te Moller, Nikae C. R.
  • Nissi, Mikko J.
  • Ketola, Juuso H.
  • Sarin, Jaakko K.
  • Mancini, Irina A. D.
  • Brommer, Harold
  • Tiitu, Virpi
  • Malda, Jos
  • Leskinen, Henri
  • René Van Weeren, P.
  • Sarin, J. K.
  • Leskinen, H.
  • Brommer, H.
  • Visser, J.
  • Mancini, I. A. D.
  • Nissi, M. J.
  • Tiitu, V.
  • Te Moller, N. C. R.
  • Van Weeren, P. R.
  • Ketola, J. H.
  • Malda, J.
  • Nykänen, O.
  • Van Weeren, P. René
  • Rieppo, L.
  • Van Rijen, M. H. P.
  • Weinans, H.
  • Pouran, B.
  • Kik, M.
  • Braganca, F. M. Serra
  • Shmueli, Karin
  • Kolehmainen, Ville
  • Snyder, Brian D.
  • Joukainen, Antti
  • Jurvelin, Jukka S.
  • Kokkonen, Harri T.
  • Honkanen, Juuso T. J.
  • Stewart, Rachel C.
  • Grinstaff, Mark W.
  • Puhakka, P. H.
  • Inkinen, S. I.
  • Argüelles, D.
  • Saarakkala, S.
  • Jurvelin, J. S.
  • Tanska, P.
  • Ojanen, X.
  • Isaksson, H.
  • Magnusson, S. P.
  • Malo, M. K. H.
  • Koistinen, A. P.
  • Väänänen, S. P.
  • Grassi, L.
  • Ribel-Madsen, S. M.
  • Isaksson, Hanna
  • Inkinen, Satu I.
  • Ojanen, Xiaowei
  • Malo, Markus K. H.
  • Virén, Tuomas
  • Liukkonen, Jukka
  • Eneh, Chibuzor T. M.
  • Salo, J.
  • Mononen, M. E.
  • Halonen, K. S.
  • Mervaala, Esa
  • Myllymaa, Sami
  • Myllymaa, Katja
  • Lappalainen, Reijo
  • Lepola, Pasi
  • Hukkanen, Taina
  • Hakulinen, M. A.
  • Lammi, M. J.
  • Sierpowska, J.
  • Lappalainen, R.
  • Day, J. S.
  • Kiviranta, I.
  • Laasanen, M. S.
  • Nieminen, M. T.
  • Rieppo, J.
  • Rieppo, Jarno
  • Korhonen, Rami K.
  • Kiviranta, Panu
  • Julkunen, Petro
  • Voutilainen, Tanja
  • Nieminen, Miika T.
  • Helminen, Heikki J.
  • Laasanen, Mikko S.
  • Silvennoinen, Johanna
  • Kovanen, Vuokko
  • Hyttinen, Mika M.
  • Sierpowska, Joanna
  • Helminen, H. J.
  • Nieminen, H. J.
  • Hirvonen, J.
  • Hakumäki, Juhana M.
OrganizationsLocationPeople

article

Quantitative susceptibility mapping of articular cartilage: ex vivo findings at multiple orientations and following different degradation treatments

  • Töyräs, Juha
  • Saarakkala, Simo
  • Nykänen, Olli
  • Nissi, Mikko J.
  • Shmueli, Karin
  • Kolehmainen, Ville
  • Rieppo, Lassi
Abstract

Purpose: We investigated the feasibility of quantitative susceptibility mapping (QSM) for assessing degradation of articular cartilage by measuring ex vivo bovine cartilage samples subjected to different degradative treatments. Specimens were scanned at several orientations to study if degradation affects the susceptibility anisotropy. T2*-mapping, histological stainings, and polarized light microscopy were used as reference methods. Additionally, simulations of susceptibility in layered geometry were performed. Methods: Samples (n = 9) were harvested from the patellae of skeletally mature bovines. Three specimens served as controls, and the rest were artificially degraded. MRI was performed at 9.4T using a 3D gradient echo sequence. QSM and T2* images and depth profiles through the centers of the samples were compared with each other and the histological findings. A planar isotropic model with depth-wise susceptibility variation was used in the simulations. Results: A strong diamagnetic contrast was seen in the deep and calcified layers of cartilage, while T2* maps reflected the typical trilaminar structure of the collagen network. Anisotropy of susceptibility in cartilage was observed and was found to differ from the T2* anisotropy. Slight changes were observed in QSM and T2* following the degradative treatments. In simulations, anisotropy was observed. Conclusions: The results suggest that QSM is not sensitive to cartilage proteoglycan content, but shows sensitivity to the amount of calcification and to the integrity of the collagen network, providing potential for assessing osteoarthritis. The simulations suggested that the anisotropy of susceptibility might be partially explained by the layered geometry of susceptibility in cartilage.

Topics
  • impedance spectroscopy
  • simulation
  • layered
  • isotropic
  • susceptibility
  • Polarized light microscopy