Searched for: author%3A%22Vos%2C+F.M.%22
(1 - 20 of 42)

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Nagtegaal, M.A. (author), Hartsema, Emiel (author), Koolstra, Kirsten (author), Vos, F.M. (author)
Purpose: To develop an efficient algorithm for multicomponent MR fingerprinting (MC-MRF) reconstructions directly from highly undersampled data without making prior assumptions about tissue relaxation times and expected number of tissues. Methods: The proposed method reconstructs MC-MRF maps from highly undersampled data by iteratively...
journal article 2022
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Bakhshaee Babaroud, N. (author), Palmar, M. (author), Velea, A. (author), Coletti, C. (author), Weingärtner, S.D. (author), Vos, F.M. (author), Serdijn, W.A. (author), Vollebregt, S. (author), Giagka, Vasiliki (author)
Multimodal platforms combining electrical neural recording and stimulation, optogenetics, optical imaging, and magnetic resonance (MRI) imaging are emerging as a promising platform to enhance the depth of characterization in neuroscientific research. Electrically conductive, optically transparent, and MRI-compatible electrodes can optimally...
journal article 2022
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Karkalousos, D. (author), Noteboom, S. (author), Hulst, H. E. (author), Vos, F.M. (author), Caan, M.W.A. (author)
Objective. Machine Learning methods can learn how to reconstruct magnetic resonance images (MRI) and thereby accelerate acquisition, which is of paramount importance to the clinical workflow. Physics-informed networks incorporate the forward model of accelerated MRI reconstruction in the learning process. With increasing network complexity,...
journal article 2022
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Nunez-Gonzalez, L. (author), Nagtegaal, M.A. (author), Poot, D.H.J. (author), de Bresser, J. (author), van Osch, M. J.P. (author), Hernandez-Tamames, J.A. (author), Vos, F.M. (author)
MR fingerprinting (MRF) is a promising method for quantitative characterization of tissues. Often, voxel-wise measurements are made, assuming a single tissue-type per voxel. Alternatively, the Sparsity Promoting Iterative Joint Non-negative least squares Multi-Component MRF method (SPIJN-MRF) facilitates tissue parameter estimation for...
journal article 2022
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Heesterbeek, David G.J. (author), Koolstra, Kirsten (author), van Osch, Matthias J.P. (author), van Gijzen, M.B. (author), Vos, F.M. (author), Nagtegaal, M.A. (author)
Purpose: To develop a method for MR Fingerprinting (MRF) sequence optimization that takes both the applied undersampling pattern and a realistic reference map into account. Methods: A predictive model for the undersampling error leveraging on perturbation theory was exploited to optimize the MRF flip angle sequence for improved robustness...
journal article 2022
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Liebrand, Luka C. (author), van Wingen, Guido A. (author), Vos, F.M. (author), Denys, Damiaan (author), Caan, Matthan W.A. (author)
Given the restricted total scanning time for clinical neuroimaging, it is unclear whether clinical diffusion MRI protocols would benefit more from higher spatial resolution or higher angular resolution. In this work, we investigated the relative benefit of improving spatial or angular resolution in diffusion MRI to separate two parallel...
journal article 2020
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van Valenberg, W. (author), Klein, S. (author), Vos, F.M. (author), Koolstra, Kirsten (author), van Vliet, L.J. (author), Poot, D.H.J. (author)
Quantitative MRI methods that estimate multiple physical parameters simultaneously often require the fitting of a computational complex signal model defined through the Bloch equations. Repeated Bloch simulations can be avoided by matching the measured signal with a precomputed signal dictionary on a discrete parameter grid (i.e. lookup table...
journal article 2020
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Ambrosini, P. (author), Hollemans, Eva (author), Kweldam, Charlotte F. (author), Leenders, Geert J.L.H.van (author), Stallinga, S. (author), Vos, F.M. (author)
Cribriform growth patterns in prostate carcinoma are associated with poor prognosis. We aimed to introduce a deep learning method to detect such patterns automatically. To do so, convolutional neural network was trained to detect cribriform growth patterns on 128 prostate needle biopsies. Ensemble learning taking into account other tumor...
journal article 2020
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Bazin, Pierre Louis (author), Nijsse, Hannah E. (author), van der Zwaag, Wietske (author), Gallichan, Daniel (author), Alkemade, Anneke (author), Vos, F.M. (author), Forstmann, Birte U. (author), Caan, Matthan W.A. (author)
Sub-millimeter imaging at 7T has opened new possibilities for qualitatively and quantitatively studying brain structure as it evolves throughout the life span. However, subject motion introduces image blurring on the order of magnitude of the spatial resolution and is thus detrimental to image quality. Such motion can be corrected for, but...
journal article 2020
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Nagtegaal, M.A. (author), Koken, Peter (author), Amthor, Thomas (author), de Bresser, Jeroen (author), Mädler, Burkhard (author), Vos, F.M. (author), Doneva, Mariya (author)
Demyelination is the key pathological process in multiple sclerosis (MS). The extent of demyelination can be quantified with magnetic resonance imaging by assessing the myelin water fraction (MWF). However, long computation times and high noise sensitivity hinder the translation of MWF imaging to clinical practice. In this work, we introduce...
journal article 2020
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Arkesteijn, G.A.M. (author), Poot, D.H.J. (author), Ikram, M.A. (author), Niessen, W.J. (author), van Vliet, L.J. (author), Vernooij, M.W. (author), Vos, F.M. (author)
The goal of this paper is to increase the statistical power of crossing-fiber statistics in voxelwise analyses of diffusion-weighted magnetic resonance imaging (DW-MRI) data. In the proposed framework, a fiber orientation atlas and a model complexity atlas were used to fit the ball-and-sticks model to diffusion-weighted images of subjects in...
journal article 2019
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Bouziane, Cheima (author), Filatova, O.G. (author), Schrantee, Anouk (author), Caan, Matthan W.A. (author), Vos, F.M. (author), Reneman, Liesbeth (author)
Background: Methylphenidate (MPH) is highly effective in treating attention-deficit/hyperactivity disorder (ADHD). However, not much is known about its effect on the development of human brain white matter (WM). Purpose: To determine whether MPH modulates WM microstructure in an age-dependent fashion in a randomized double-blind placebo...
journal article 2019
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van Dongen, K.W.A. (author), de Blécourt, A.J. (author), Lens, E. (author), Schaart, D.R. (author), Vos, F.M. (author)
In proton therapy high energy protons are used to irradiate a tumor. Ideally, the delivered proton dose distribution is measured during treatment to ensure patient safety and treatment effectiveness. Here we investigate if we can use the ionoacoustic wave field to monitor the actual proton dose distribution for the two most commonly used proton...
journal article 2019
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Rassam, F. (author), Zhang, T. (author), Cieslak, K. P. (author), Lavini, C. (author), Stoker, J. (author), Bennink, R. J. (author), van Gulik, T. M. (author), van Vliet, L.J. (author), Runge, J. H. (author), Vos, F.M. (author)
Objectives: To compare Gd-EOB-DTPA dynamic hepatocyte-specific contrast-enhanced MRI (DHCE-MRI) with <sup>99m</sup> Tc-mebrofenin hepatobiliary scintigraphy (HBS) as quantitative liver function tests for the preoperative assessment of patients undergoing liver resection. Methods: Patients undergoing liver surgery and preoperative assessment...
journal article 2019
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Zhang, T. (author), Runge, Jurgen H. (author), Lavini, Cristina (author), Stoker, Jaap (author), van Gulik, Thomas (author), Cieslak, Kasia P. (author), van Vliet, L.J. (author), Vos, F.M. (author)
Purpose Pharmacokinetic models facilitate assessment of properties of the micro-vascularization based on DCE-MRI data. However, accurate pharmacokinetic modeling in the liver is challenging since it has two vascular inputs and it is subject to large deformation and displacement due to respiration. Methods We propose an improved...
journal article 2019
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Filatova, O.G. (author), van Vliet, L.J. (author), Schouten, A.C. (author), Kwakkel, Gert (author), van der Helm, F.C.T. (author), Vos, F.M. (author)
Better insight into white matter (WM) alterations after stroke onset could help to understand the underlying recovery mechanisms and improve future interventions. MR diffusion imaging enables to assess such changes. Our goal was to investigate the relation of WM diffusion characteristics derived from diffusion models of increasing complexity...
journal article 2018
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Puylaert, Carl A.J. (author), Tielbeek, Jeroen A.W. (author), Schüffler, Peter J. (author), Nio, C. Yung (author), Horsthuis, Karin (author), Mearadji, Banafsche (author), Ponsioen, Cyriel Y. (author), Vos, F.M. (author), Stoker, Jaap (author)
Purpose: The purpose of the study was to compare the performance of contrast-enhanced (CE)-MRI and diffusion-weighted imaging (DW)-MRI in grading Crohn’s disease activity of the terminal ileum. Methods: Three readers evaluated CE-MRI, DW-MRI, and their combinations (CE/DW-MRI and DW/CE-MRI, depending on which protocol was used at the start of...
journal article 2018
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van Dongen, K.W.A. (author), de Blécourt, Anne (author), Lens, E. (author), Schaart, D.R. (author), Vos, F.M. (author)
In proton therapy, cancer patients are irradiated with high energy protons. For a successful treatment it is important that the location with the highest energy deposition, the so-called Bragg-peak, is located inside the tumor and not in the healthy surrounding tissue. Here, we investigate if the iono-acoustic wave field generated by the protons...
conference paper 2018
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Puylaert, Carl A.J. (author), Schüffler, Peter J. (author), Naziroglu, R.E. (author), Tielbeek, Jeroen A.W. (author), Li, Z. (author), Makanyanga, Jesica C. (author), Tutein Nolthenius, Charlotte J. (author), Nio, C. Yung (author), Pendsé, Douglas A. (author), Menys, Alex (author), Ponsioen, Cyriel Y. (author), Atkinson, David (author), Forbes, Alastair (author), Buhmann, Joachim M. (author), Fuchs, Thomas J. (author), Hatzakis, Haralambos (author), van Vliet, L.J. (author), Stoker, Jaap (author), Taylor, Stuart A. (author), Vos, F.M. (author)
Rationale and Objectives: The objective of this study was to develop and validate a predictive magnetic resonance imaging (MRI) activity score for ileocolonic Crohn disease activity based on both subjective and semiautomatic MRI features. Materials and Methods: An MRI activity score (the “virtual gastrointestinal tract [VIGOR]” score) was...
journal article 2018
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Zhang, T. (author), Wu, Z. (author), Runge, Jurgen H. (author), Lavini, Cristina (author), Stoker, Jaap (author), Van Gulik, Thomas (author), Cieslak, Kasia P. (author), van Vliet, L.J. (author), Vos, F.M. (author)
The Couinaud classification of hepatic anatomy partitions the liver into eight functionally independent segments. Detection and segmentation of the hepatic vein (HV), portal vein (PV) and inferior vena cava (IVC) plays an important role in the subsequent delineation of the liver segments. To facilitate pharmacokinetic modeling of the liver...
conference paper 2018
Searched for: author%3A%22Vos%2C+F.M.%22
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