Results 71 to 80 of about 66,094 (288)

3d-SMRnet: Achieving a new quality of MPI system matrix recovery by deep learning

, 2019
Magnetic particle imaging (MPI) data is commonly reconstructed using a system matrix acquired in a time-consuming calibration measurement. The calibration approach has the important advantage over model-based reconstruction that it takes the complex ...
Baltruschat, Ivo Matteo, Griese, Florian, Grosser, Mirco, Knopp, Tobias, Szwargulski, Patryk, Werner, René   +5 more
core   +1 more source

Label-free high-throughput photoacoustic tomography of suspected circulating melanoma tumor cells in patients in vivo [PDF]

, 2020
Significance: Detection and characterization of circulating tumor cells (CTCs), a key determinant of metastasis, are critical for determining risk of disease progression, understanding metastatic pathways, and facilitating early clinical intervention.
Cornelius, Lynn A., Hai, Pengfei, Li, Yang, Qu, Yuan, Shmuylovich, Leonid, Wang, Lihong V., Zhu, Liren   +6 more
core   +1 more source

Retina phantom model for hyperspectral imaging

Medical Imaging 2025: Image-Guided Procedures, Robotic Interventions, and Modeling
Accurate retinal imaging is crucial for preclinical research and the development of diagnostic and therapeutic approaches for eye diseases. However, existing retinal imaging models often lack the precision needed to replicate the complex optical environment of the eye, limiting their effectiveness in testing and calibration.
Bryarly, Michelle D., Ha Tran, Minh, Ali, Arrsh, Fei, Baowei   +3 more
openaire   +3 more sources

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Septin 9 PB domains coordinate centrosome positioning and microtubule acetylation to control epithelial polarity

FEBS Letters, EarlyView.
Septin 9 polybasic domains couple phosphoinositide‐rich membrane binding to centrosome positioning, Golgi organization, and microtubule acetylation to control epithelial polarity. Their loss disrupts this axis, causing centrosome mispositioning, Golgi fragmentation, reduced microtubule acetylation, and polarity inversion via upregulation of the ...
Ting ting Cai, Mohyeddine Omrane, Nassima Benzoubir, Didier Samuel, Ama Gassama‐Diagne   +4 more
wiley   +1 more source

Ray Theory-Based Transcranial Phase Correction for Intracranial Imaging: A Phantom Study

IEEE Access, 2019
Ultrasonic imaging provides a non-invasive way to diagnose brain disease. However, due to imaging degradation effects from the phase-aberration and reverberation, it is still challenging to achieve an accurate transcranial imaging.
Chen Jiang, Yunqing Li, Boyi Li, Chengcheng Liu, Feng Xu, Kailiang Xu, Dean Ta   +6 more
doaj   +1 more source

Head phantoms for electroencephalography and transcranial electric stimulation: a skull material study

, 2018
Physical head phantoms allow assessing source reconstruction procedures in electroencephalography and electrical stimulation profiles during transcranial electric stimulation. Volume conduction in the head is strongly influenced by the skull representing
Fiedler, Patrique, Haueisen, Jens, Hunold, Alexander, Strohmeier, Daniel   +3 more
core   +1 more source

Tutorial on phantoms for photoacoustic imaging applications

Journal of Biomedical Optics
Photoacoustic imaging (PAI) is an emerging technology that holds high promise in a wide range of clinical applications, but standardized methods for system testing are lacking, impeding objective device performance evaluation, calibration, and inter-device comparisons.
Lina Hacker, James Joseph, Ledia Lilaj, Srirang Manohar, Aoife M. Ivory, Ran Tao, Sarah E. Bohndiek, null Members of IPASC   +7 more
openaire   +4 more sources

Ubiquitination of secretory granules promotes their crinophagic degradation in Drosophila

FEBS Letters, EarlyView.
Ubiquitination of secretory granules in Drosophila larval salivary glands is a critical molecular trigger for crinophagy, the lysosomal degradation of unreleased, or low‐quality granules. The E3 ubiquitin ligase Cnot4 is recruited to the surface of secretory granules to induce crinophagy.
Tamás Csizmadia, Anna Dósa, Asha Kiran Maddali, András Jipa, Hajnalka Laczkó‐Dobos, Péter Lőw, Gábor Juhász   +6 more
wiley   +1 more source

Reconstruction by Calibration over Tensors for Multi-Coil Multi-Acquisition Balanced SSFP Imaging

, 2017
Purpose: To develop a rapid imaging framework for balanced steady-state free precession (bSSFP) that jointly reconstructs undersampled data (by a factor of R) across multiple coils (D) and multiple acquisitions (N).
Biyik, Erdem, Ilicak, Efe, Çukur, Tolga
core   +2 more sources