MaxGIRF: Image reconstruction incorporating concomitant field and gradient impulse response function effects

NG Lee, R Ramasawmy, Y Lim… - Magnetic resonance …, 2022 - Wiley Online Library
Purpose To develop and evaluate an improved strategy for compensating concomitant field
effects in non‐Cartesian MRI at the time of image reconstruction. Theory We present a …

High SNR rapid T1‐weighted MPRAGE using spiral imaging with long readouts and improved deblurring

D Wang, RK Robison, Z Li… - Magnetic Resonance in …, 2023 - Wiley Online Library
Purpose The goal of this work is to present the implementation of 3D spiral high‐resolution
MPRAGE and to demonstrate that SNR and scan efficiency increase with the increment of …

Spiral 3-dimensional T1-weighted turbo field echo: increased speed for magnetization-prepared gradient echo brain magnetic resonance imaging

T Sartoretti, E Sartoretti, L van Smoorenburg… - Investigative …, 2020 - journals.lww.com
Objectives Spiral magnetic resonance imaging acquisition may enable improved image
quality and higher scan speeds than Cartesian trajectories. We tested the performance of …

Diffusion-weighted MRI of ischemic stroke at 3T: Value of synthetic b-values

T Sartoretti, E Sartoretti, M Wyss… - The British Journal of …, 2021 - academic.oup.com
Objectives: Diffusion-weighted imaging (DWI) plays a crucial role in the diagnosis of
ischemic stroke. We assessed the value of computed and acquired high b-value DWI in …

A field map updating algorithm to improve fat‐water spiral imaging

TC Chao, D Wang, G Krishnamoorthy… - Magnetic Resonance …, 2023 - Wiley Online Library
Purpose An accurate field map is essential to separate fat and water signals in a dual‐echo
chemical shift encoded spiral MRI scan. A rapid low‐resolution B0 map prescan is usually …

Rapid T2-weighted turbo spin echo MultiVane brain MRI using compressed SENSE: a qualitative analysis

E Sartoretti, M Wyss, B Eichenberger… - Clinical Radiology, 2021 - Elsevier
Materials and methods This institutional review board-approved intra-individual comparison
study was conducted between October 2020 and December 2020 at a single tertiary centre …

Accelerating spiral deblurring with square kernels and low‐pass preconditioning

D Wang, TC Chao, JG Pipe - Magnetic Resonance in Medicine, 2024 - Wiley Online Library
Purpose Robust implementation of spiral imaging requires efficient deblurring. A deblurring
method was previously proposed to separate and deblur water and fat simultaneously …

Qualitative and quantitative analysis of a spiral gradient echo sequence for contrast-enhanced fat-suppressed T1-weighted spine magnetic resonance imaging

E Sartoretti, T Sartoretti, L van Smoorenburg… - Investigative …, 2021 - journals.lww.com
Objectives Pulse sequences with non-Cartesian k-space sampling enable improved
imaging in anatomical areas with high degrees of motion artifacts. We analyzed a novel …

Contrast-enhanced T1-weighted head and neck MRI: prospective intraindividual image quality comparison of spiral GRE, Cartesian GRE, and Cartesian TSE …

E Sartoretti, S Sartoretti-Schefer… - American Journal of …, 2022 - Am Roentgen Ray Soc
Please see the Editorial Comment by Yun Jung Bae discussing this article. BACKGROUND.
Sequences with noncartesian k-space sampling may improve image quality of head and …

Accelerating TOF-MRA: The impact of the combined use of compressed sensitivity encoding and spiral imaging

K Morita, H Uetani, T Nakaura, M Yoneyama… - Magnetic Resonance …, 2023 - Elsevier
Purpose To evaluate the image quality of the combined technique of compressed sensitivity
encoding (CS) and spiral imaging in time-of-flight magnetic resonance angiography (TOF …