DEVICE FOR PHOTODETECTING TUMOR

• US 20070232911A1
• Filed: 03/15/2007
• Published: 10/04/2007
• Est. Priority Date: 03/30/2006
• Status: Abandoned Application

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Urano, Taeko
• Application Number:
  US11/686,744
• Publication Number:
  US 20070232911A1
• Time in Patent Office: Days
• US Class Current: 600/438
• CPC Class Codes: A61B 5/0086 using infrared radiation
• CPC Class Codes: A61B 5/0091 for mammography
• CPC Class Codes: A61B 5/0095 by applying light and detecting acoustic waves, i.e. photoacoustic measurements
• CPC Class Codes: A61B 5/14532 for measuring glucose, e.g. by tissue impedance measurement
• CPC Class Codes: A61B 5/1455 using optical sensors, e.g. spectral photometrical oximeters
• CPC Class Codes: A61B 5/4312 Breast evaluation or disorder diagnosis A61B5/0091 takes precedence

Abstract

The present invention includes i) an irradiator which irradiates 1st light with wavelength within a photo-absorption band of glucose on organism tissues, ii) an detector which detects reflected light of the 1st light from the organism tissues, iii) an operation unit configured to operate distribution of level of glucose, and iv) a determination unit configured to determine presence of a tumor by analyzing the distribution of level of glucose.

Claims

1. A tumor photo-detection device comprising:

i) an irradiator which irradiates first light with a wavelength within a photo-absorbing band of glucose and second light with a wavelength within a photo-absorbing band of water, on a plurality of regions of organism tissue;

ii) a detector which detects reflected light of the first light from the organism tissue and reflected light of the second light from the organism tissue;

iii) an operation unit configured to operate distributions of concentration levels of glucose and water in the plurality of regions by comparing the reflected light of the first light with that of the second light with regard to an increase or decrease in intensity; and

iv) a determination unit configured to determine presence or absence of an area where regions of high concentration level of glucose and regions of low concentration level of water appear alternately by analyzing the distributions of the concentration levels.

2. The device according to claim 1, wherein the irradiator overlays the first light and the second light on a same optical path.

3. The device according to claim 1, wherein the irradiator is fixed and the detector is rotated around the irradiator.

4. A tumor photo-detection device comprising:

i) an irradiator which irradiates first light with a wavelength within a photo-absorbing band of glucose, second light with a wavelength within a photo-absorbing band of water and third light with a wavelength within a photo-absorbing band of hemoglobin, on a plurality of regions of organism tissue;

ii) a detector which detects reflected light of the first light from the organism tissue, reflected light of the second light from the organism tissue and reflected light of the third light from the organism tissue;

iii) an operation unit configured to operate distributions of concentration levels of glucose, water and hemoglobin in the plurality of regions by comparing the reflected light of the first light, that of the second light and that of the third light with each other with regard to an increase or decrease in intensity; and

iv) a determination unit configured to determine presence or absence of an area where regions of high concentration levels of glucose and hemoglobin and regions of a low concentration level of water appear alternately by analyzing the distributions of the concentration levels.

5. The device according to claim 4, wherein the irradiator overlays the first light, second light and third light on a same optical path.

6. The device according to claim 4, wherein the irradiator is fixed and the detector is rotated around the irradiator.

7. An acoustic wave detection device comprising:

i) an irradiator which irradiates first light with a wavelength within a photo-absorbing band of glucose and second light with a wavelength within a photo-absorbing band of water, on a site to be measured in organism tissue;

ii) a detector which detects acoustic wave generated from the site to be measured;

iii) an operation unit configured to operate distributions of concentration levels of glucose and water in the site where the acoustic wave is generated by measuring an arrival time of an ultrasonic wave detected by the detector; and

iv) a determination unit configured to determine presence or absence of a tumor in the site by constructing a spatial distribution image from the generation site and the amplitude value of the acoustic wave, and comparing between the spatial distribution value in a section to be examined in the spatial distribution image and the spatial distribution value in a normal part in the spatial distribution image.