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Model-based optoacoustic image reconstruction of large three-dimensional tomographic datasets acquired with an array of directional detectors
- Source :
- IEEE Transactions on Medical Imaging
- Publication Year :
- 2013
-
Abstract
- Image quality in 3-D optoacoustic (photoacoustic) tomography is greatly influenced by both the measurement system, in particular the number and spatial arrangement of ultrasound sensors, and the ability to account for the spatio-temporal response of the sensor element(s) in the reconstruction algorithm. Herein we present a reconstruction procedure based on the inversion of a time-domain forward model incorporating the spatial impulse response due to the shape of the transducer, which is subsequently applied in a tomographic system based on a translation-rotation scan of a linear detector array. The proposed method was also adapted to cope with the data-intensive requirements of high-resolution volumetric optoacoustic imaging. The processing of 2 · 10 (4) individual signals resulted in well-resolved images of both ~ 200 μm absorbers in phantoms and complex vascular structures in biological tissue. The results reported herein demonstrate that the introduced model-based methodology exhibits a better contrast and resolution than standard back-projection and model-based algorithms that assume point detectors. Moreover, the capability of handling large datasets anticipates that model-based methods incorporating the sensor properties can become standard practice in volumetric opto acoustic image formation.
- Subjects :
- Image formation
Computer science
Image quality
Transducers
Photoacoustic imaging in biomedicine
Iterative reconstruction
01 natural sciences
030218 nuclear medicine & medical imaging
010309 optics
Photoacoustic Techniques
03 medical and health sciences
Mice
0302 clinical medicine
Imaging, Three-Dimensional
0103 physical sciences
medicine
Animals
Computer vision
Electrical and Electronic Engineering
Optical tomography
Image resolution
Reconstruction procedure
Radiological and Ultrasound Technology
medicine.diagnostic_test
business.industry
Foot
Phantoms, Imaging
Detector
Reconstruction algorithm
Inverse problem
Computer Science Applications
Ultrasonic imaging
Transducer
Ultrasonic sensor
Artificial intelligence
Tomography
business
Tomography, X-Ray Computed
Software
Optoacoustic imaging
Algorithms
Subjects
Details
- ISSN :
- 1558254X
- Volume :
- 33
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- IEEE transactions on medical imaging
- Accession number :
- edsair.doi.dedup.....4beb6e244f00c7dd83a1e638253f9ea2