Results 11 to 20 of about 1,779,855 (302)

Super phantoms: advanced models for testing medical imaging technologies [PDF]

Communications Engineering
Phantoms are test objects used for initial testing and optimization of medical imaging techniques, but these rarely capture the complex properties of the tissue.
Srirang Manohar, Ioannis Sechopoulos, Mark A. Anastasio, Lena Maier-Hein, Rajiv (Raj) Gupta   +4 more
doaj   +3 more sources

Phantom benchmarking for quality assurance of synthetic computed tomography in cranial magnetic resonance-only radiotherapy [PDF]

Physics and Imaging in Radiation Oncology
Background and Purpose: Synthetic computed tomography (sCT) from magnetic resonance imaging (MRI) enables computed tomography (CT)-free cranial radiotherapy planning, yet no consensus exists on which head phantoms are usable for sCT quality assurance (QA)
Bernd-Niklas Axer, Johann Brand, Lucas Pieper, Florian Putz, Johanna Lott, Christoph Dickmann, Rainer Fietkau, Stefanie Corradini, Christoph Bert, Juliane Szkitsak   +9 more
doaj   +2 more sources

Classification of phantoms for medical imaging

Procedia CIRP, 2023
Phantoms are physical models that mimic biological tissue and its properties in medical imaging. They play an important role in medical quality assurance, research, education, and training, since they can offer an adequate test environment. As the use of medical imaging modalities is a growing field in medicine phantoms are likewise evolving very ...
Wegner, Marie, Gargioni, Elisabetta, Krause, Dieter   +2 more
openaire   +2 more sources

Design and measurement of 3D-printed variable-morphology and variable-density breast phantoms for mammography and breast CT dose assessment [PDF]

3D Printing in Medicine
Accurate dose quantification across radiation-based breast imaging techniques is important for patient safety, but currently available phantoms do not easily allow the assessment of the impact of breast size and density across modalities. Here we design,
Catherine Paverd, Gianluca Piol, Davide Cester   +2 more
doaj   +2 more sources

Stochastic numerical head phantoms to enable virtual imaging studies of transcranial photoacoustic computed tomography [PDF]

Photoacoustics
Transcranial photoacoustic computed tomography (PACT) is an emerging neuroimaging modality, but skull-induced aberrations can result in severe image artifacts if not compensated for during image reconstruction.
Hsuan-Kai Huang, Joseph Kuo, Seonyeong Park, Umberto Villa, Lihong V. Wang, Mark A. Anastasio   +5 more
doaj   +2 more sources

Tutorial on phantoms for photoacoustic imaging applications [PDF]

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   +5 more sources

Projection-based stereolithography for direct 3D printing of heterogeneous ultrasound phantoms

PLoS ONE, 2021
Modern ultrasound (US) imaging is increasing its clinical impact, particularly with the introduction of US-based quantitative imaging biomarkers. Continued development and validation of such novel imaging approaches requires imaging phantoms that ...
Samantha J. Paulsen, Trevor M. Mitcham, Charlene S. Pan, James Long, Bagrat Grigoryan, Daniel W. Sazer, Collin J. Harlan, Kevin D. Janson, Mark D. Pagel, Jordan S. Miller, Richard R. Bouchard   +10 more
doaj   +3 more sources

Constructing Customized Multimodal Phantoms Through 3D Printing: A Preliminary Evaluation

Frontiers in Physics, 2021
Purpose: To develop a method for constructing customizable, multimodal quality control (QC) imaging phantoms based on 3D printing technology.Materials and Methods: Four phantoms were designed and constructed through 3D printing technology using three ...
Jianfeng Qiu, Kun Hou, Brandon A. Dyer, Jyh-Cheng Chen, Liting Shi, Yong Sun, Longchun Xu, Huihui Zhao, Zhengmei Li, Tiao Chen, Minghui Li, Fuquan Zhang, Haozhao Zhang, Yi Rong   +13 more
doaj   +1 more source

The potential role of 3D-printed phantoms in quality control of artificial intelligence-based algorithms in medical imaging

Current Directions in Biomedical Engineering, 2023
To ensure accurate and consistent imaging of patients, medical imaging systems are controlled and tested using phantoms. Despite the availability of commercial standard phantoms for decades, 3D printing technology has gained special attention as a tool ...
Pashazadeh Ali, Hoeschen Christoph
doaj   +1 more source

Additively manufactured test phantoms for mimicking soft tissue radiation attenuation in CBCT using Polyjet technology

Zeitschrift für Medizinische Physik, 2023
Objectives: To develop and validate a simple approach for building cost-effective imaging phantoms for Cone Beam Computed Tomography (CBCT) using a modified Polyjet additive manufacturing technology where a single material can mimic a range of human soft-
Sepideh Hatamikia, Gunpreet Oberoi, Anna Zacher, Gernot Kronreif, Wolfgang Birkfellner, Joachim Kettenbach, Stefanie Ponti, Andrea Lorenz, Martin Buschmann, Laszlo Jaksa, Nikolaus Irnstorfer, Ewald Unger   +11 more
doaj   +1 more source