Self-Navigated Three-Dimensional Ultrashort Echo Time Technique for Motion-Corrected Skull MRI
IEEE Transactions on Medical Imaging, 2020 Ultrashort echo time (UTE) MRI is capable of detecting signals from protons with very short T2 relaxation times, and thus has potential for skull-selective imaging as a radiation-free alternative to computed tomography. However, relatively long scan times make the technique vulnerable to artifacts from involuntary subject motion.
Hyunyeol Lee +3 more
openaire +3 more sources
Feasibility of quantitative ultrashort echo time (UTE)‐based methods for MRI of peripheral nerve [PDF]
NMR in Biomedicine, 2018 Peripheral nerves are a composite tissue consisting of neurovascular elements packaged within a well‐organized extracellular matrix. Their composition, size, and anatomy render nerves a challenging medical imaging target. In contrast to morphological MRI, which represents the predominant approach to nerve imaging, quantitative MRI ...
Shu‐Juan Fan +6 more
openaire +4 more sources
Feasibility of MRI-only treatment planning for proton therapy in brain and prostate cancers: Dose calculation accuracy in substitute CT images [PDF]
, 2016 Peer ...
Koivula, Lauri +2 more
core +1 more source
Indian Journal of Radiology and Imaging, 2022 Purpose The purpose of this study is to evaluate the detection rate of pulmonary nodules in ultrashort echo time (UTE) lung magnetic resonance imaging (MRI) and to compare it with computed tomography (CT) in oncology patients.
Gopinath Periaswamy +6 more
doaj +1 more source
Fast pseudo-CT synthesis from MRI T1-weighted images using a patch-based approach [PDF]
, 2015 MRI-based bone segmentation is a challenging task because bone tissue and air both present low signal intensity on MR images, making it difficult to accurately delimit the bone boundaries.
Adalsteinsson, Elfar +8 more
core +1 more source
Quantitative MRI Musculoskeletal Techniques: An Update. [PDF]
, 2019 OBJECTIVE. For many years, MRI of the musculoskeletal system has relied mostly on conventional sequences with qualitative analysis. More recently, using quantitative MRI applications to complement qualitative imaging has gained increasing interest in the
Chang, Eric Y +4 more
core +1 more source
Fat suppression for ultrashort echo time imaging using a novel soft-hard composite radiofrequency pulse. [PDF]
, 2019 PurposeTo design a soft-hard composite pulse for fat suppression and water excitation in ultrashort echo time (UTE) imaging with minimal short T2 signal attenuation.MethodsThe composite pulse contains a narrow bandwidth soft pulse centered on the fat ...
Chang, Eric Y +4 more
core +1 more source
Markerless attenuation correction for carotid MRI surface receiver coils in combined PET/MR imaging. [PDF]
, 2015 The purpose of the study was to evaluate the effect of attenuation of MR coils on quantitative carotid PET/MR exams. Additionally, an automated attenuation correction method for flexible carotid MR coils was developed and evaluated.The attenuation of the
Bini, J +6 more
core +1 more source
Diagnostics, 2022 Tendons and bones comprise a special interacting unit where mechanical, biochemical, and metabolic interplays are continuously in effect. Bone loss in osteoporosis (OPo) and its earlier stage disease, osteopenia (OPe), may be coupled with a reduction in ...
Saeed Jerban +11 more
doaj +1 more source
Fully phase‐encoded MRI near metallic implants using ultrashort echo times and broadband excitation [PDF]
Magnetic Resonance in Medicine, 2017 PurposeTo develop a fully phase‐encoded MRI method for distortion‐free imaging near metallic implants, in clinically feasible acquisition times.Theory and MethodsAn accelerated 3D fully phase‐encoded acquisition with broadband excitation and ultrashort echo times is presented, which uses a broadband radiofrequency pulse to excite the entire off ...
Curtis N, Wiens +5 more
openaire +2 more sources