Results 31 to 40 of about 6,210,221 (335)
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
Generating Anthropomorphic Phantoms Using Fully Unsupervised Deformable Image Registration with Convolutional Neural Networks [PDF]
Med. Phys., 47: 6366-6380 (2020), 2019 Objectives: Computerized phantoms play an essential role in various applications of medical imaging research. Although the existing computerized phantoms can model anatomical variations through organ and phantom scaling, this does not provide a way to fully reproduce anatomical variations seen in humans.
arxiv +1 more source
Real-time markerless tumour tracking with patient-specific deep learning using a personalized data generation strategy: Proof of concept by phantom study [PDF]
Br J Radiol 2020; 93: 20190420, 2020 Objective: For real-time markerless tumour tracking in stereotactic lung radiotherapy, we propose a different approach which uses patient-specific deep learning (DL) using a personalized data generation strategy, avoiding the need for collection of a large patient data set.
arxiv +1 more source
Robustness of radiomic features in magnetic resonance imaging: review and a phantom study
Visual Computing for Industry, Biomedicine, and Art, 2019 Radiomic analysis has exponentially increased the amount of quantitative data that can be extracted from a single image. These imaging biomarkers can aid in the generation of prediction models aimed to further personalized medicine.
R. Cattell, Shenglan Chen, Chuan Huang
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
Super Phantoms: advanced models for testing medical imaging technologies [PDF]
arXiv, 2023 Phantoms are test objects used for initial testing and optimization of medical imaging techniques, but these rarely capture the complex properties of the tissue. Here we introduce super phantoms, that surpass standard phantoms being able to replicate complex anatomic and functional imaging properties of tissues and organs.
arxiv
Quantitative magnetic resonance imaging phantoms: A review and the need for a system phantom
Magnetic Resonance in Medicine, 2018 The MRI community is using quantitative mapping techniques to complement qualitative imaging. For quantitative imaging to reach its full potential, it is necessary to analyze measurements across systems and longitudinally.
K. Keenan +22 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
Development of a blood oxygenation phantom for photoacoustic tomography combined with online pO2 detection and flow spectrometry [PDF]
, 2019 Photoacoustic tomography (PAT) is intrinsically sensitive to blood oxygen saturation (sO2) in vivo. However, making accurate sO2 measurements without knowledge of tissue- and instrumentation-related correction factors is extremely challenging. We have developed a low-cost flow phantom system to facilitate validation of photoacoustic tomography systems.
arxiv +1 more source
Medical Physics (Lancaster), 2018 PURPOSE Imaging phantoms are widely used for testing and optimization of imaging devices without the need to expose humans to irradiation. However, commercially available phantoms are commonly manufactured in simple, generic forms and sizes and therefore
C. Hazelaar +6 more
semanticscholar +1 more source