Výsledky vyhledávání - "Sebastian Lachner"

Influence of image contrasts and reconstruction methods on the classification of multiple sclerosis‐like lesions in simulated sodium magnetic resonance imaging

Autor: Laurent Ruck, Angelika Mennecke, Tobias Wilferth, Sebastian Lachner, Max Müller, Nico Egger, Arnd Doerfler, Michael Uder, Armin M. Nagel

Publikováno v: Magnetic Resonance in Medicine. 89:1102-1116

To evaluate the classifiability of small multiple sclerosis (MS)-like lesions in simulated sodium (Lesions show higher classifiability inReliability of lesion classifiability strongly depends on the lesion volume and the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca997a4bd848b6dc89d89f1337e9aad9
https://doi.org/10.1002/mrm.29476

Zobrazit plný text záznamu

Tissue Sodium Concentration Quantification at 7.0-T MRI as an Early Marker for Chemotherapy Response in Breast Cancer: A Feasibility Study

Autor: Sebastian Lachner, Michael Weber, Ella Asseryanis, Armin M. Nagel, Siegfried Trattnig, Lenka Minarikova, Alex Farr, Olgica Zaric, Christian F. Singer

Publikováno v: Radiology. 299:63-72

Background Tissue sodium concentration (TSC) is elevated in breast cancer and can determine chemotherapy response. Purpose To test the feasibility of using a sodium 23 (23Na) MRI protocol at 7.0 T for TSC quantification to predict early treatment out

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88df52faa93c86c48201347e336161ed
https://doi.org/10.1148/radiol.2021201600

Zobrazit plný text záznamu

Compressed sensing and the use of phased array coils in 23Na MRI: a comparison of a SENSE-based and an individually combined multi-channel reconstruction

Autor: Laurent Ruck, Lenka Minarikova, Siegfried Trattnig, Michael Uder, Armin M. Nagel, Matthias Utzschneider, Sebastian Lachner, Bernhard Hensel, Štefan Zbýň, Olgica Zaric

Publikováno v: Zeitschrift für Medizinische Physik. 31:48-57

Purpose To implement and to evaluate a compressed sensing (CS) reconstruction algorithm based on the sensitivity encoding (SENSE) combination scheme (CS-SENSE), used to reconstruct sodium magnetic resonance imaging (23Na MRI) multi-channel breast dat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1eb1c957987c3d088cf931f5651253a6
https://doi.org/10.1016/j.zemedi.2020.10.003

Zobrazit plný text záznamu

Towards accelerated quantitative sodium MRI at 7 T in the skeletal muscle: Comparison of anisotropic acquisition- and compressed sensing techniques

Autor: Andreas Maier, Sebastian Lachner, Matthias Utzschneider, Michael Uder, Nicolas G.R. Behl, Lena V. Gast, Armin M. Nagel, Max Müller

Publikováno v: Magnetic Resonance Imaging. 75:72-88

Purpose To compare three anisotropic acquisition schemes and three compressed sensing (CS) approaches for accelerated tissue sodium concentration (TSC) quantification using 23Na MRI at 7 T. Materials and methods Three anisotropic 3D-radial acquisitio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f077491231c2a1207cb25da20e7856da
https://doi.org/10.1016/j.mri.2020.09.019

Zobrazit plný text záznamu

Accelerated quantification of tissue sodium concentration in skeletal muscle tissue: quantitative capability of dictionary learning compressed sensing

Autor: Nicolas G.R. Behl, Sebastian Lachner, Andreas Maier, Matthias Utzschneider, Michael Uder, Armin M. Nagel, Lena V. Gast

Publikováno v: Magnetic Resonance Materials in Physics, Biology and Medicine. 33:495-505

To accelerate tissue sodium concentration (TSC) quantification of skeletal muscle usingSimulations and in vivoReconstruction results of simulated data with optimized 3D-DLCS yielded a lower deviation ( 4%) from the GT than results of the NUFFT recons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4321c939914a3dc257b841f5660d9f1c
https://doi.org/10.1007/s10334-019-00819-2

Zobrazit plný text záznamu

Compressed sensing reconstruction of 7 Tesla 23Na multi-channel breast data using 1H MRI constraint

Autor: Sebastian Lachner, Armin M. Nagel, Štefan Zbýň, Matthias Utzschneider, Siegfried Trattnig, Bernhard Hensel, Michael Uder, Lenka Minarikova, Olgica Zaric

Publikováno v: Magnetic Resonance Imaging. 60:145-156

Purpose To reduce acquisition time and to improve image quality in sodium magnetic resonance imaging (23Na MRI) using an iterative reconstruction algorithm for multi-channel data sets based on compressed sensing (CS) with anatomical 1H prior knowledg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3ba5193c09b2105a90585bbfa3b0afee
https://doi.org/10.1016/j.mri.2019.03.024

Zobrazit plný text záznamu

Compressed sensing and the use of phased array coils in

Autor: Sebastian, Lachner, Matthias, Utzschneider, Olgica, Zaric, Lenka, Minarikova, Laurent, Ruck, Štefan, Zbýň, Bernhard, Hensel, Siegfried, Trattnig, Michael, Uder, Armin M, Nagel

Publikováno v: Zeitschrift fur medizinische Physik. 31(1)

To implement and to evaluate a compressed sensing (CS) reconstruction algorithm based on the sensitivity encoding (SENSE) combination scheme (CS-SENSE), used to reconstruct sodium magnetic resonance imaging (In a simulation study, the CS-SENSE algori

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::00b79fc6d4aa10f5d9dee45d80ced4d0
https://pubmed.ncbi.nlm.nih.gov/33183893

Zobrazit plný text záznamu

Comparison of optimized intensity correction methods for

Autor: Sebastian, Lachner, Laurent, Ruck, Sebastian C, Niesporek, Matthias, Utzschneider, Johanna, Lott, Bernhard, Hensel, Arnd, Dörfler, Michael, Uder, Armin M, Nagel

Publikováno v: Zeitschrift fur medizinische Physik. 30(2)

To correct for the non-homogeneous receive profile of a phased array head coil in sodium magnetic resonance imaging (Phantom measurements show the correction of the intensity profile applying the given methods. Compared to the uncorrected phased arra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::08ddb57e58c9e2808f9008ed0eb92e31
https://pubmed.ncbi.nlm.nih.gov/31866116

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání