Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Wilfried Gründer"'
Autor:
Harald Busse, G Thörmer, Wilfried Gründer, Robert Turner, Thomas Kahn, Nikita Garnov, Robert Trampel
Publikováno v:
NMR in Biomedicine. 26:1412-1419
Signal intensities of T2-weighted magnetic resonance images depend on the local fiber arrangement in hyaline cartilage. The aims of this study were to determine whether angle-sensitive MRI at 7 T can be used to quantify the cartilage ultrastructure o
Publikováno v:
Magnetic Resonance in Medicine. 70:225-231
Purpose To demonstrate the feasibility of a novel experimental method to quantitatively analyze fiber-network deformation in compressed cartilage by angle-sensitive magnetic resonance imaging (MRI) of cartilage. Methods Three knee cartilage samples o
Autor:
Harald Busse, Michael Moche, G Thörmer, Wilfried Gründer, Robert Trampel, Nikita Garnov, Thomas Kahn
Publikováno v:
Medical Physics. 38:6327-6335
Purpose: MR-visible markers have already been used for various purposes such as image registration, motion detection, and device tracking. Inductively coupled RF (ICRF) coils, in particular, provide a high contrast and do not require connecting wires
Autor:
Julia Böhme, Franziska Weber, Michael C. Hacker, Daniel Huster, Stefan Rammelt, Wilfried Gründer, Holger A. Scheidt, Michaela Schulz-Siegmund
Publikováno v:
NMR in Biomedicine. 25:464-475
A combination of solid-state NMR spectroscopy and MRI was used to evaluate the formation of extracellular matrix in poly(D,L-lactide-co-glycolide) (PLGA) bone implants. Porous PLGA scaffolds were implanted into rat tibiae and analysed after 2, 4 or 8
Autor:
Thomas Kahn, Wilfried Gründer, Nikita Garnov, Michael Moche, Dirk Zajonz, Harald Busse, G Thörmer
Publikováno v:
Magnetic Resonance in Medicine. 64:922-928
MRI is of great clinical utility for the guidance of various diagnostic and therapeutic procedures. In a standard closed-bore scanner, the simplest approach is to manipulate the instrument outside the bore and move the patient into the bore for refer
Publikováno v:
Zeitschrift für Medizinische Physik. 15:101-106
Artificial neural nets were used to determine the Young's modulus and spatial load distribution in articular cartilage by means of T2-weighted MR imaging. MR images were obtained in vitro (ex vivo?) from the joints of sheep of different ages (3 month
Publikováno v:
Zeitschrift für Medizinische Physik. 13:203-207
Cryodestruction of tissue is influenced by cooling and thawing rates, absolute tissue temperature, number of freeze-thaw cycles, and type of tissue. However, under clinical conditions a MRT visualization of the temperature distribution during cryo-pr
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 181:511-515
The scanning transmission ion microscopy (STIM) method was used to investigate the collagen network structure of the articular cartilage from a pig's knee in comparison with high resolution nuclear magnetic resonance imaging (microscopic NMR-tomograp
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 181:516-521
In this study, the nuclear microprobe technique is employed to analyse the chemistry of joint cartilage in order to correlate internal structures of the collagen network with the elemental distribution. The samples were taken from pig's knee joint. 3
Publikováno v:
Magnetic Resonance in Medicine. 43:884-891
High-resolution MRI measurements on knee joints show a multilaminar appearance of the cartilage. This intracartilaginar structure, visualized as hypointense zones in T(2)-weighted MR images is based on the dipolar interaction of water molecules withi