Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Karl Kratkiewicz"'
Publikováno v:
Photonics, Vol 11, Iss 4, p 288 (2024)
Photoacoustic imaging (PAI) is a rapidly developing biomedical imaging technology. Linear array-based photoacoustic tomography (LA-PAT) is one of the most popular configurations of cross-sectional PAI due to its simplicity and clinical translatabilit
Externí odkaz:
https://doaj.org/article/879dd7bf04cd4f88b0989bc70257f5ed
Autor:
Rayyan Manwar, Karl Kratkiewicz, Sadreddin Mahmoodkalayeh, Ali Hariri, Christos Papadelis, Anne Hansen, De-Ann M. Pillers, Juri Gelovani, Kamran Avanaki
Publikováno v:
Photoacoustics, Vol 32, Iss , Pp 100538- (2023)
We have developed and optimized an imaging system to study and improve the detection of brain hemorrhage and to quantify oxygenation. Since this system is intended to be used for brain imaging in neonates through the skull opening, i.e., fontanelle,
Externí odkaz:
https://doaj.org/article/feeda3d1a9e94c2693ec3ca3cbe7c1f0
Autor:
Afreen Fatima, Karl Kratkiewicz, Rayyan Manwar, Mohsin Zafar, Ruiying Zhang, Bin Huang, Neda Dadashzadeh, Jun Xia, Kamran (Mohammad) Avanaki
Publikováno v:
Photoacoustics, Vol 15, Iss , Pp - (2019)
Photoacoustic Computed Tomography (PACT) is a major configuration of photoacoustic imaging, a hybrid noninvasive modality for both functional and molecular imaging. PACT has rapidly gained importance in the field of biomedical imaging due to superior
Externí odkaz:
https://doaj.org/article/3ecab5eb56ed461fb72e3e19eee0f1e6
Publikováno v:
Micromachines, Vol 11, Iss 7, p 692 (2020)
Ultrasound detection is one of the major components of photoacoustic imaging systems. Advancement in ultrasound transducer technology has a significant impact on the translation of photoacoustic imaging to the clinic. Here, we present an overview on
Externí odkaz:
https://doaj.org/article/1e50a84d81cb481cb129808ed33bb516
Publikováno v:
Sensors, Vol 20, Iss 15, p 4189 (2020)
Although transcranial photoacoustic imaging (TCPAI) has been used in small animal brain imaging, in animals with thicker skull bones or in humans both light illumination and ultrasound propagation paths are affected. Hence, the PA image is largely de
Externí odkaz:
https://doaj.org/article/9b50abba737c4c339519ad84f5634182
Autor:
David Tes, Karl Kratkiewicz, Ahmed Aber, Luke Horton, Mohsin Zafar, Nour Arafat, Afreen Fatima, Mohammad RN Avanaki
Publikováno v:
Biomedical Engineering and Computational Biology, Vol 9 (2018)
Alzheimer disease is the most common form of dementia, affecting more than 5 million people in the United States. During the progression of Alzheimer disease, a particular protein begins to accumulate in the brain and also in extensions of the brain,
Externí odkaz:
https://doaj.org/article/4cc3d03906d04e20b154a4560d6445ca
Autor:
Karl Kratkiewicz, Rayyan Manwar, Mohsin Zafar, Seyed Mohsen Ranjbaran, Moein Mozaffarzadeh, Nico de Jong, Kailai Ji, Kamran Avanaki
Publikováno v:
Applied Sciences, Vol 9, Iss 21, p 4505 (2019)
Photoacoustic imaging (PAI) is an emerging label-free and non-invasive modality for imaging biological tissues. PAI has been implemented in different configurations, one of which is photoacoustic computed tomography (PACT) with a potential wide range
Externí odkaz:
https://doaj.org/article/cb547150c90c4f06961430c351afffe2
Autor:
Karl Kratkiewicz, Rayyan Manwar, Ali Rajabi-Estarabadi, Joseph Fakhoury, Jurgita Meiliute, Steven Daveluy, Darius Mehregan, Kamran (Mohammad) Avanaki
Publikováno v:
Sensors, Vol 19, Iss 12, p 2815 (2019)
The marked increase in the incidence of melanoma coupled with the rapid drop in the survival rate after metastasis has promoted the investigation into improved diagnostic methods for melanoma. High-frequency ultrasound (US), optical coherence tomogra
Externí odkaz:
https://doaj.org/article/6c5f1cdf2a0e432d9993823852cf1d73
Publikováno v:
Applied Sciences, Vol 9, Iss 3, p 374 (2019)
A low-cost Photoacoustic Computed Tomography (PACT) system consisting of 16 single-element transducers has been developed. Our design proposes a fast rotating mechanism of 360o rotation around the imaging target, generating comparable images to those
Externí odkaz:
https://doaj.org/article/40aaf002d616486592bf94655fa33c60
Autor:
Rayyan Manwar, Matin Hosseinzadeh, Ali Hariri, Karl Kratkiewicz, Shahryar Noei, Mohammad R. N. Avanaki
Publikováno v:
Sensors, Vol 18, Iss 10, p 3498 (2018)
In practice, photoacoustic (PA) waves generated with cost-effective and low-energy laser diodes, are weak and almost buried in noise. Reconstruction of an artifact-free PA image from noisy measurements requires an effective denoising technique. Avera
Externí odkaz:
https://doaj.org/article/2c4814f1689c4dfc916aa11113669e96