Results 21 to 30 of about 560,191 (256)

Progress of photoacoustic imaging combined with targeted photoacoustic contrast agents in tumor molecular imaging

open access: yesFrontiers in Chemistry, 2022
Molecular imaging visualizes, characterizes, and measures biological processes at the molecular and cellular level. In oncology, molecular imaging is an important technology to guide integrated and precise diagnosis and treatment.
Yiwen Zheng, Mengyao Liu, Lixin Jiang
doaj   +1 more source

Quantitative photoacoustic tomography [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009
In this paper, several algorithms that allow for quantitative photoacoustic reconstruction of tissue optical, acoustic and physiological properties are described in a finite-element method based framework. These quantitative reconstruction algorithms are compared, and the merits and limitations associated with these methods are discussed ...
Yuan, Zhen, Jiang, Huabei
openaire   +2 more sources

Impact of skin pigmentation on photoacoustic tomography: a phantom study. [PDF]

open access: yesBiophotonics Discov
Significance: Skin pigmentation is a known source of bias in optical and photoacoustic imaging. Although these effects are well investigated for two-dimensional photoacoustic imaging systems, their impact on three-dimensional (3D) photoacoustic ...
Bulthuis RFG   +5 more
europepmc   +2 more sources

Sparse-view reconstruction for photoacoustic tomography combining diffusion model with model-based iteration

open access: yesPhotoacoustics, 2023
As a non-invasive hybrid biomedical imaging technology, photoacoustic tomography combines high contrast of optical imaging and high penetration of acoustic imaging.
Xianlin Song   +7 more
doaj   +1 more source

Photoacoustic tomography system based on Diode Laser to Imaging of some types of materials

open access: yes, 2022
Photoacoustic tomography imaging research has been conducted to distinguish several types of materials. The photoacoustic tomography imaging system used in this study uses a diode laser as a source of radiation and a condenser microphone as a detection ...
Satriawan, Mirza   +2 more
core   +1 more source

The Optical Inverse Problem in Quantitative Photoacoustic Tomography: A Review

open access: yesPhotonics, 2023
Photoacoustic tomography is a fast-growing biomedical imaging modality that combines rich optical contrast with a high acoustic resolution, at depths in tissues.
Zeqi Wang, Wei Tao, Hui Zhao
doaj   +1 more source

Commentary on Photoacoustic Tomography [PDF]

open access: yesJournal of Nuclear Medicine, 2015
Substantial funding, notably from the National Cancer Institute of the United States, over the past 10 y has greatly promoted noninvasive approaches to studying pathophysiology, tumor progression, and response to therapy as well as pharmacokinetics and biodistribution of potential therapeutics ...
openaire   +2 more sources

Spatiotemporal Antialiasing in Photoacoustic Computed Tomography [PDF]

open access: yesIEEE Transactions on Medical Imaging, 2020
Photoacoustic computed tomography (PACT) based on a full-ring ultrasonic transducer array is widely used for small animal wholebody and human organ imaging, thanks to its high in-plane resolution and full-view fidelity. However, spatial aliasing in full-ring geometry PACT has not been studied in detail.
Peng Hu, Lei Li, Li Lin, Lihong V. Wang
openaire   +5 more sources

The characterization of a photoacoustic tomography imaging system and its application to distinguish healthy liver and worm-infected liver

open access: yes, 2022
This research is aimed to determine the performance and characterization of a photoacoustic tomography imaging system (PTIS) to distinguish between the healthy liver and worm-infected liver and to know the average sound intensity produced by the livers ...
Satriawan, Mirza   +5 more
core   +1 more source

Differentiation Between Benign and Malignant Pigmented Skin Tumours Using Bedside Diagnostic Imaging Technologies: A Pilot Study

open access: yesActa Dermato-Venereologica, 2022
Rapid diagnosis of suspicious pigmented skin lesions is imperative; however, current bedside skin imaging technologies are either limited in penetration depth or resolution.
Terese von Knorring   +8 more
doaj   +1 more source

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