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Laser Doppler imaging (LDI) is an imaging … Laser Doppler imaging (LDI) is an imaging method that uses a laser beam to scan live tissue. When the laser light reaches the tissue, the moving blood cells generate doppler components in the reflected (backscattered) light. The light that comes back is detected using a photodiode that converts it into an electrical signal. Then the signal is processed to calculate a signal that is proportional to the tissue perfusion in the scanned area. When the process is completed, the signal is processed to generate an image that shows the perfusion on a screen. The laser doppler effect was first used to measure microcirculation by Stern M.D. in 1975. And it is used widely in medicine, some representative research work about it are these:entative research work about it are these:
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http://commons.wikimedia.org/wiki/Special:FilePath/LaserDopplerHolographyRetinaONH.gif?width=300 +
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http://www.efunda.com/designstandards/sensors/laser_doppler/laser_doppler_intro.cfm +
, http://www.holomap.com/lda.htm +
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35417850
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10184
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1064794221
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http://dbpedia.org/resource/Microangiography +
, http://dbpedia.org/resource/Construct_validity +
, http://dbpedia.org/resource/Retina +
, http://dbpedia.org/resource/Photon_Doppler_velocimetry +
, http://dbpedia.org/resource/Gynaecology +
, http://dbpedia.org/resource/Category:Optical_imaging +
, http://dbpedia.org/resource/Blood_pressure +
, http://dbpedia.org/resource/Perfusion +
, http://dbpedia.org/resource/Diastole +
, http://dbpedia.org/resource/Vaginal_photoplethysmograph +
, http://dbpedia.org/resource/Arterial_resistivity_index +
, http://dbpedia.org/resource/Photoplethysmogram +
, http://dbpedia.org/resource/File:VIM_LDH.jpg +
, http://dbpedia.org/resource/Optic_disc +
, http://dbpedia.org/resource/Discriminant_validity +
, http://dbpedia.org/resource/Eye +
, http://dbpedia.org/resource/Hemodynamics +
, http://dbpedia.org/resource/Medicine +
, http://dbpedia.org/resource/Laser_Doppler_velocimetry +
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, http://dbpedia.org/resource/File:Hand_Emmanuel_gain6_color_9_35.gif +
, http://dbpedia.org/resource/Hot-wire_anemometry +
, http://dbpedia.org/resource/Molecular_tagging_velocimetry +
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, http://dbpedia.org/resource/Cardiovascular_diseases +
, http://dbpedia.org/resource/Doppler_effect +
, http://dbpedia.org/resource/Pulse +
, http://dbpedia.org/resource/Backscatter +
, http://dbpedia.org/resource/Category:Laser_applications +
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, http://dbpedia.org/resource/Imaging +
, http://dbpedia.org/resource/Systole +
, http://dbpedia.org/resource/Category:Doppler_effects +
, http://dbpedia.org/resource/Microcirculation +
, http://dbpedia.org/resource/Particle_tracking_velocimetry +
, http://dbpedia.org/resource/Particle_image_velocimetry +
, http://dbpedia.org/resource/Principal_component_analysis +
, http://dbpedia.org/resource/Choroid +
, http://dbpedia.org/resource/Laser_surface_velocimeter +
, http://dbpedia.org/resource/Laser_Doppler_vibrometer +
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http://dbpedia.org/resource/Digital_holography +
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| http://dbpedia.org/property/caption
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Microangiography of the optic disc region of the human retina, by laser Doppler imaging. The image was rendered computationnally by optical wave propagation and measurement of optical fluctuations.
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| http://dbpedia.org/property/name
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Laser Doppler imaging
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| http://dbpedia.org/property/purpose
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measure blood flow in eye
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http://dbpedia.org/resource/Category:Measurement +
, http://dbpedia.org/resource/Category:Optical_imaging +
, http://dbpedia.org/resource/Category:Doppler_effects +
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| rdfs:comment |
Laser Doppler imaging (LDI) is an imaging … Laser Doppler imaging (LDI) is an imaging method that uses a laser beam to scan live tissue. When the laser light reaches the tissue, the moving blood cells generate doppler components in the reflected (backscattered) light. The light that comes back is detected using a photodiode that converts it into an electrical signal. Then the signal is processed to calculate a signal that is proportional to the tissue perfusion in the scanned area. When the process is completed, the signal is processed to generate an image that shows the perfusion on a screen.mage that shows the perfusion on a screen.
|
| rdfs:label |
Laser Doppler imaging
|
