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Handheld device and method for tomographic optoacoustic imaging of an object

A hand-held device, photoacoustic imaging technology, applied in the fields of echo tomography, application, medical science, etc., can solve the problems that cannot ensure the acquisition of high-quality photoacoustic images with high signal-to-noise ratio, quantification and spatial resolution

Active Publication Date: 2014-06-18
ITHERA MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Acquisition of high-quality photoacoustic images especially with high signal-to-noise ratio, quantification and spatial resolution from regions of interest in or on objects is not ensured when the general goal of the device is the combination of pulse-echo ultrasound and photoacoustic imaging

Method used

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  • Handheld device and method for tomographic optoacoustic imaging of an object
  • Handheld device and method for tomographic optoacoustic imaging of an object
  • Handheld device and method for tomographic optoacoustic imaging of an object

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Embodiment Construction

[0041] figure 1 A cross-sectional side view of a first embodiment of a handheld device 10 according to the invention is shown. The handheld device 10 comprises a container 11 , wherein a recess 12 with a surface 17 is provided in the container 11 . The container 11 is preferably made of metal. The recess 12 in the container 11 is shaped as part of a sphere, in particular a cap or part of an ellipsoid.

[0042] An array 14 of ultrasound detector elements is provided in the recess 12 . In the example given, the detector element array 14 is arranged on or along the surface 17 of the recess 12 . As is evident from the figure, the array is provided in the bottom region of the recess 12 . The detector element array 14 is preferably a linear array.

[0043] The recess 12 has a hole in which the end face of the fiber bundle 16 is provided. The end faces of the fiber bundle 16 include a plurality of end faces of a plurality of individual optical fibers 17 of the fiber bundle, whe...

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Abstract

The invention relates to a handheld device (1) and an according method for optoacoustic imaging of an object, comprising an irradiation unit (2b) for irradiating the object with electromagnetic radiation (5), in particular light, and a detector unit (1a, 1b) for detecting acoustic, in particular ultrasonic, waves generated in the object upon irradiation with electromagnetic radiation (5), wherein the detector unit (1a, 1b) comprises an array (1a) of detector elements. In order to ensure an acquisition of high-quality tomographic optoacoustic images from different depths within the object at a simple overall design, the handheld device (19) is provided with a recess (6), in which the irradiation unit (2b) and the array (1a) of detector elements are provided, wherein the detector elements are arranged in the recess (6) such that the surface normals of at least a part of the detector elements are directed to a region of interest on or within the object.

Description

technical field [0001] The invention relates to a handheld device and a method for photoacoustic imaging of objects according to the independent claims. Background technique [0002] Photoacoustic imaging is based on the photoacoustic effect, according to which ultrasound waves should be generated due to the absorption of electromagnetic radiation by an object (eg biological tissue) and the subsequent thermoelastic expansion of the object. [0003] Photoacoustic imaging of biological tissue is based on spectrally dependent light absorption to provide a unique combination of high spatial resolution and rich contrast. Thus techniques such as multispectral optoacoustic tomography (MSOT) can simultaneously give anatomical, functional, and molecular contrast images by exciting tissue at multiple wavelengths of light, enabling applications in molecular imaging and diagnostics, drug development Potential applications in and therapy monitoring become possible. [0004] US2008 / 0071...

Claims

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Application Information

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IPC IPC(8): A61B5/00
CPCA61B5/0095A61B8/14
Inventor 马尔钦·卡茨普罗维兹
Owner ITHERA MEDICAL
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