Fast measurement of the gradient system transfer function at 7 T

H Scholten, D Lohr, T Wech… - Magnetic resonance in …, 2023 - Wiley Online Library
Purpose In this work, a new method to determine the gradient system transfer function
(GSTF) with high frequency resolution and high SNR is presented, using fast and simple …

Real‐time cardiac MRI using an undersampled spiral k‐space trajectory and a reconstruction based on a variational network

J Kleineisel, JF Heidenreich, P Eirich… - Magnetic …, 2022 - Wiley Online Library
Purpose Cardiac MRI represents the gold standard to determine myocardial function.
However, the current clinical standard protocol, a segmented Cartesian acquisition, is time …

ECG‐free cine MRI with data‐driven clustering of cardiac motion for quantification of ventricular function

Z Ming, A Pogosyan, C Gao, CM Colbert… - NMR in …, 2024 - Wiley Online Library
Background Despite the widespread use of cine MRI for evaluation of cardiac function,
existing real‐time methods do not easily enable quantification of ventricular function …

Dynamic pressure–volume loop analysis by simultaneous real-time cardiovascular magnetic resonance and left heart catheterization

F Seemann, CG Bruce, JM Khan… - Journal of …, 2023 - Springer
Background Left ventricular (LV) contractility and compliance are derived from pressure–
volume (PV) loops during dynamic preload reduction, but reliable simultaneous …

Feasibility of undersampled spiral trajectories in MREPT for fast conductivity imaging

S Özdemir, E Ilicak, J Zapp, LR Schad… - Magnetic Resonance …, 2024 - Wiley Online Library
Purpose To investigate spiral‐based imaging including trajectories with undersampling as a
fast and robust alternative for phase‐based magnetic resonance electrical properties …

Beat phenomena of oscillating readouts

H Dillinger, SM Peereboom… - Magnetic Resonance in …, 2024 - Wiley Online Library
Purpose To demonstrate slowly varying, erroneous magnetic field gradients for oscillating
readouts due to the mechanically resonant behavior of gradient systems. Methods …

Real-time spiral CMR is superior to conventional segmented Cine-imaging for left-ventricular functional assessment in patients with arrhythmia

N Nita, J Kersten, A Pott, F Weber, T Tesfay… - Journal of Clinical …, 2022 - mdpi.com
(1) Background: Segmented Cartesian Cardiovascular magnetic resonance (CMR) often
fails to deliver robust assessment of cardiac function in patients with arrhythmia. We aimed …

Evaluation of combined late gadolinium‐enhancement and functional cardiac magnetic resonance imaging using spiral real‐time acquisition

J Portmann, T Wech, P Eirich… - NMR in …, 2022 - Wiley Online Library
The purpose of the current study was to implement and validate joint real‐time acquisition of
functional and late gadolinium‐enhancement (LGE) cardiac magnetic resonance (MR) …

Joint image reconstruction and segmentation of real-time cardiac MRI in free-breathing using a model based on disentangled representation learning

T Wech, O Schad, S Sauer, J Kleineisel, N Petri… - arXiv preprint arXiv …, 2024 - arxiv.org
A joint image reconstruction and segmentation approach based on disentangled
representation learning was trained to enable cardiac cine MR imaging in real-time and …

A data‐driven semantic segmentation model for direct cardiac functional analysis based on undersampled radial MR cine series

T Wech, MJ Ankenbrand, TA Bley… - Magnetic Resonance …, 2022 - Wiley Online Library
Purpose Image acquisition and subsequent manual analysis of cardiac cine MRI is time‐
consuming. The purpose of this study was to train and evaluate a 3D artificial neural network …