Thoracic diagnosis assistance system and computer readable storage medium

Patent metadata

Field	Value
Publication number	US-9237877-B2
Application number	US-201414556410-A
Country	US
Kind code	B2
Filing date	Dec 1, 2014
Priority date	Aug 27, 2010
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

Provided is a thoracic diagnosis assistance system. The system includes, an imaging unit, an extracting unit, a region dividing unit, an analysis unit and a display unit. The extraction unit extracts a lung field region from the plurality of successive image frames generated by the imaging unit. The region dividing unit divides the lung field region extracted by the extraction unit into a plurality of sub-regions and correlates the sub-regions among the plurality of image frames. The analysis unit performs an analysis of the sub-regions to calculate an inspiratory feature quantity and an expiratory feature quantity and to calculate a value of a ratio of the calculated inspiratory feature quantity to expiratory feature quantity and creates a histogram of the calculated ratio value. The display unit displays the histogram.

First claim

The invention claimed is:

1. A diagnosis assistance information generating system comprising:
an imaging unit structured to image a subject using a radiation source and a radiation detector structured to detect radiation which is irradiated from the radiation source and which is transmitted through the subject by a plurality of detection elements positioned two dimensionally to generate image data of the subject; and
an image analysis unit structured to generate diagnosis assistance information regarding the subject abased on the image data acquired by the imaging unit;
wherein, the imaging unit is able to successively irradiate radiation from the radiation source to acquire a plurality of frame images showing movement of the subject, the imaging unit further comprising:
an anti-scattered radiation grid structured to remove scattered radiation from the radiation source; and
an imaging control unit structured to control whether imaging is performed using the anti-scattered radiation grid;
wherein, the imaging control unit is structured to control imaging to be performed without the anti-scattered radiation grid when diagnosis assistance information regarding the movement of the subject is generated by the image analysis unit.

2. The diagnosis assistance information generating system of claim 1 , wherein the image analysis unit is structured to calculate signal changing amount based on the plurality of frame images acquired by the imaging unit and generate the diagnosis assistance information regarding the movement of the subject based on the calculated signal changing amount.

3. The diagnosis assistance information generating system of claim 1 , wherein the imaging control unit is structured to control imaging to be performed with the anti-scattered radiation grid in static imaging.

4. The diagnosis assistance information generating system of claim 3 , wherein the imaging control unit is structured to change a radiation irradiation condition depending on whether imaging is performed with the anti-scattered radiation grid or without the anti-scattered radiation grid.

5. The diagnosis assistance information generating system of claim 1 , wherein the imaging control unit is structured to set a radiation irradiation condition so that an irradiation dose of one static imaging with the anti-scattered radiation grid is equal to a total irradiation dose of a series of dynamic imaging without the anti-scattered radiation grid.

Assignees

• Konica Minolta Inc

Inventors

• Noji Syou
• Shimada Tetsuo
• Muraoka Shintaro
• Nagatsuka Sumiya

Classifications

• G06T2207/10016

  Video; Image sequence · CPC title

• A61B5/08 Primary

  Measuring devices for evaluating the respiratory organs · CPC title

• G06T7/0016

  involving temporal comparison · CPC title

• G06T2207/20021

  Dividing image into blocks, subimages or windows · CPC title

• G06T2207/10116

  X-ray image · CPC title