Results 41 to 50 of about 6,084,382 (354)
Diagnostics, 2022 Coded Aperture (CA) imaging has recently been used in nuclear medicine, but still, there is no commercial SPECT imaging camera based on CA for cancer detection. The literature is rich in examples of using the CA for planar and thin 3D imaging.
Khalid Hussain +6 more
doaj +1 more source
3D-printed biological cell phantom for testing 3D quantitative phase imaging systems
Scientific Reports, 2019 As the 3D quantitative phase imaging (QPI) methods mature, their further development calls for reliable tools and methods to characterize and compare their metrological parameters.
M. Ziemczonok +3 more
semanticscholar +1 more source
3D-printed breast phantom for multi-purpose and multi-modality imaging.
Quantitative Imaging in Medicine and Surgery, 2019 Background Breast imaging technology plays an important role in breast cancer planning and treatment. Recently, three-dimensional (3D) printing technology has become a trending issue in phantom constructions for medical applications, with its advantages ...
Yaoyao He +10 more
semanticscholar +1 more source
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 +3 more
doaj +1 more source
National Journal of Clinical AnatomyBackground: Utilization of computed tomography (CT) has dramatically increased during the last decade with a concurrent increase in exposure to ionizing radiation. Even low levels of exposure have been linked to the development of cancer.
Vandana Nathan +2 more
doaj +1 more source
Zeitschrift für Medizinische Physik, 2022 Current medical imaging phantoms are usually limited by simplified geometry and radiographic skeletal homogeneity, which confines their usage for image quality assessment. In order to fabricate realistic imaging phantoms, replication of the entire tissue
Sepideh Hatamikia +12 more
doaj
Digital mouse phantom for optical imaging
Journal of Biomedical Optics, 2007 We present a method for design and use of a digital mouse phantom for small animal optical imaging. We map the boundary of a mouse model from magnetic resonance imaging (MRI) data through image processing algorithms and discretize the geometry by a finite element (FE) descriptor.
Shekhar Dwivedi +2 more
openaire +3 more sources
The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
Physics and Imaging in Radiation Oncology, 2023 Purpose: Periodic imaging quality assurance (QA) of magnetic resonance imaging linear accelerator (MRL) is critical. The feasibility of a new MRL imaging phantom used for QA in the low field was evaluated with automated image analysis of various ...
James J. Sohn +3 more
doaj
Network topology drives population temporal variability in experimental habitat networks
Population Ecology, EarlyView.Habitat patches connected by dispersal pathways form habitat networks. We explored how network topology affects population outcomes in laboratory experiments using a model species (Daphnia carinata). Central habitat nodes in complex lattice networks exhibited lower temporal variability in population sizes, suggesting they support more stable ...
Yiwen Xu +3 more
wiley +1 more source