Results 21 to 30 of about 3,517 (112)

Deep Learning-Based Classification of Gamma Photon Interaction in Room-Temperature Semiconductor Radiation Detectors

IEEE Access
Photon counting radiation detectors have become an integral part of medical imaging modalities such as Positron Emission Tomography or Computed Tomography.
Sandeep K. Chaudhuri, Qinyang Li, Krishna C. Mandal, Jianjun Hu   +3 more
doaj   +1 more source

Advancements in Acute Pulmonary Embolism Diagnosis and Treatment: A Narrative Review of Emerging Imaging Techniques and Intravascular Interventions

Journal of Cardiovascular Development and Disease
Acute pulmonary embolism (APE) represents a significant cause of morbidity and mortality worldwide, requiring rapid and precise diagnosis and effective therapy strategies.
Michaela Cellina, Matilde Pavan, Niccolò Finardi, Francesco Cicchetti, Maurizio Cè, Pierpaolo Biondetti, Carolina Lanza, Serena Carriero, Gianpaolo Carrafiello   +8 more
doaj   +1 more source

Radiation Safety in Musculoskeletal Radiology: Addressing Challenges and Implementing Solutions

Apollo Medicine
Background and Aims: Musculoskeletal (MSK) radiology is integral for diagnosing and managing traumatic, degenerative, inflammatory and neoplastic disorders.
Shayeri Roy Choudhury, Tessa Kenaria, Jagdish Jagalpathy, Ojasvi Vemuri, Vishwanathan Muruhaiah, Vijay Ram Kumar Papineni   +5 more
doaj   +1 more source

Study of photon-counting images compared with energy-integrated images for mammography

Acta IMEKO
High-quality mammographic images are necessary because lesions on mammograms are sometimes difficult for the physician to interpret because they are faint and microscopic. In addition, the breast requires minimal radiation exposure. Current photon counting is energy- integrated images, not photon-counting images, which measures individual photons.
Norimitsu Shinohara, Toshiyuki Nishihara, Shinichi Oguchi   +2 more
openaire   +1 more source

Spectral X-Ray CT Image Reconstruction with a Combination of Energy-Integrating and Photon-Counting Detectors

PLOS ONE, 2016
The purpose of this paper is to develop an algorithm for hybrid spectral computed tomography (CT) which combines energy-integrating and photon-counting detectors. While the energy-integrating scan is global, the photon-counting scan can have a local field of view (FOV). The algorithm synthesizes both spectral data and energy-integrating data.
Qingsong Yang, Wenxiang Cong, Yan Xi, Ge Wang   +3 more
openaire   +4 more sources

Comparative image quality evaluation of unenhanced postmortem Photon-Counting CT and Energy-Integrating CT

Forensic Science, Medicine and Pathology
Abstract This study evaluates the image quality of postmortem photon-counting computed tomography (PMPCCT) compared to conventional postmortem energy-integrating computed tomography (PMCT) for a protocol adapted to post-mortem imaging.
Hartmann, Conny, Roidou, Magda, Lombardo, Paolo, Kessler, Samira, von Tengg-Kobligk, Hendrik, Ruder, Thomas, Garni, Stefanie, Cossmann, Peter, Heinze, Sarah, Zech, Wolf-Dieter   +9 more
openaire   +2 more sources

Impact of Spatial Resolution on CT Imaging of Middle Ear Prostheses: Comparison of Photon-Counting and Energy-Integrating Detectors

American Journal of Neuroradiology
CT imaging of sub-millimeter middle ear prostheses-vital for post-surgery treatment-requires highspatial-resolution. This study evaluated the impact of spatial resolution for the visualization of prostheses using photon-countingdetector (PCD) CT, energy-integrating-detector (EID) CT, and EID-CT with attenuating comb filters.Twenty-one middle ear ...
Maryam Sadeghian, John C. Benson, Paul J. Farnsworth, John I. Lane, Kevin J. Treb, Karl R. Khandalavala, Eric E. Babajanian, Michael R. Bruesewitz, Joseph R. Swicklik, Cynthia H. McCollough, Matthew L. Carlson, Shuai Leng   +11 more
openaire   +3 more sources

Editorial: The rise of postmortem imaging in forensic radiology and paleoradiology. [PDF]

Front Radiol
Gascho D, Čavka M.
europepmc   +1 more source

3D photon counting integral imaging by using multi-level decomposition

3D photon counting integral imaging by using multi-level decomposition
In this paper, we propose three-dimensional (3D) photon counting integral imaging by using multi-level decomposition such as discrete wavelet transform to improve the visual quality and measurement accuracy under photon-starved conditions. Conventional 3D integral imaging can visualize 3D objects and acquire their depth information. However, the amount
openaire   +1 more source

Ring Artifact Reduction in Photon Counting CT Using Redundant Sampling and Autocalibration. [PDF]

IEEE Trans Med Imaging
Hsieh SS, Day J, Deng X, Bazalova-Carter M.   +3 more
europepmc   +1 more source