Results 111 to 120 of about 6,315,792 (319)

Quantitative imaging: systematic review of perfusion/flow phantoms

European Radiology Experimental, 2020
Background We aimed at reviewing design and realisation of perfusion/flow phantoms for validating quantitative perfusion imaging (PI) applications to encourage best practices.
Marije E. Kamphuis, Marcel J. W. Greuter, Riemer H. J. A. Slart, Cornelis H. Slump   +3 more
doaj   +1 more source

Cell density–dependent nuclear‐cytoplasmic shuttling of SETDB1 integrates with Hippo signaling to regulate YAP1‐mediated transcription

FEBS Letters, EarlyView.
At low cell density, SETDB1 and YAP1 accumulate in the nucleus. As cell density increases, the Hippo pathway is gradually activated, and SETDB1 is associated with increased YAP1 phosphorylation. At high cell density, phosphorylated YAP1 is sequestered in the cytoplasm, while SETDB1 becomes polyubiquitinated and degraded by the ubiquitin–proteasome ...
Jaemin Eom, Jaewoong Jang, Jung Sun Park, Yong‐Kook Kang   +3 more
wiley   +1 more source

Advancements in Retinal Tissue-Mimicking Optical Coherence Tomography Phantoms: Materials, Properties, and Applications

BioChem
Optical coherence tomography (OCT) phantoms are essential tools for calibrating imaging systems, validating diagnostic algorithms, and bridging technological advancements with clinical applications. This review explores the development and application of
Mukhit Kulmaganbetov
doaj   +1 more source

Multi-energy computed tomography breast imaging with Monte Carlo simulations: Contrast-to-noise-based image weighting

Journal of Medical Physics, 2019
Context: Photon-counting detectors and breast computed tomography imaging have been an active area of research. With these detectors, photons are assigned an equal weight and weighting schemes can be enabled. More weight can be assigned to lower energies,
Déte Van Eeden, Freek C. P Du Plessis
doaj   +1 more source

ViP MRI: virtual phantom magnetic resonance imaging

Magnetic Resonance Materials in Physics, Biology and Medicine, 2013
The ability to generate reference signals is of great benefit for quantitation of the magnetic resonance (MR) signal. The aim of the present study was to implement a dedicated experimental set-up to generate MR images of virtual phantoms.Virtual phantoms of a given shape and signal intensity were designed and the k-space representation was generated. A
Saint-Jalmes, Hervé, Eliat, Pierre-Antoine, Bezy-Wendling, Johanne, Bordelois, Alejandro, Gambarota, Giulio   +4 more
openaire   +4 more sources

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

Quantifying admissible undersampling for sparsity-exploiting iterative image reconstruction in X-ray CT

, 2012
Iterative image reconstruction (IIR) with sparsity-exploiting methods, such as total variation (TV) minimization, investigated in compressive sensing (CS) claim potentially large reductions in sampling requirements.
Jørgensen, Jakob H., Pan, Xiaochuan, Sidky, Emil Y.   +2 more
core   +1 more source

Development and application of a set of mesh-based and age-dependent Chinese family phantoms for radiation protection dosimetry: Preliminary Data for external photon beams

EPJ Web of Conferences, 2017
A group of mesh-based and age-dependent family phantoms for Chinese populations were developed in this study. We implemented a method for deforming original RPI-AM and RPI-AF models into phantoms of different ages: 5, 10 ,15 and adult.
Pi Yifei, Zhang Lian, Huo Wanli, Feng Mang, Chen Zhi, Xu X. George   +5 more
doaj   +1 more source

Designing microarray phantoms for hyperspectral imaging validation

Biomedical Optics Express, 2012
The design and fabrication of custom-tailored microarrays for use as phantoms in the characterization of hyperspectral imaging systems is described. Corresponding analysis methods for biologically relevant samples are also discussed. An image-based phantom design was used to program a microarrayer robot to print prescribed mixtures of dyes onto ...
Clarke, Matthew L., Lee, Ji Youn, Samarov, Daniel V., Allen, David W., Litorja, Maritoni, Nossal, Ralph, Hwang, Jeeseong   +6 more
openaire   +2 more sources

Development of patient-specific molecular imaging phantoms using a 3D printer.

Medical Physics (Lancaster), 2014
PURPOSE The aim of the study was to investigate rapid prototyping technology for the production of patient-specific, cost-effective liquid fillable phantoms directly from patient CT data.
J. Gear, C. Long, D. Rushforth, S. Chittenden, Craig Cummings, Glenn D. Flux   +5 more
semanticscholar   +1 more source