JP2011115481A5 - - Google Patents

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JP2011115481A5
JP2011115481A5 JP2009277238A JP2009277238A JP2011115481A5 JP 2011115481 A5 JP2011115481 A5 JP 2011115481A5 JP 2009277238 A JP2009277238 A JP 2009277238A JP 2009277238 A JP2009277238 A JP 2009277238A JP 2011115481 A5 JP2011115481 A5 JP 2011115481A5
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image
plaque
pixel value
value distribution
image analysis
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JP2009277238A
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JP5670045B2 (en
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医用画像診断装置により得られた被検体の画像より血管に付随するプラークを解析する画像解析装置であって、
前記画像上の所望の領域を指定する入力を受け付けるための指定入力手段と、
該指定入力手段により指定された領域内の画像の画素値分布を計測する計測手段と、
該計測手段により計測した画素値分布に応じて、前記プラークの性質を表す指標を表示する表示手段を備えたことを特徴とする画像解析装置。 An image analysis device that analyzes plaque associated with a blood vessel from an image of a subject obtained by a medical image diagnostic device,
Designation input means for accepting an input for designating a desired region on the image;
Measuring means for measuring a pixel value distribution of an image in an area designated by the designation input means;
An image analysis apparatus, comprising: a display unit that displays an index representing the nature of the plaque according to the pixel value distribution measured by the measurement unit. 前記画素値分布をヒストグラムで表示する手段を備えたことを特徴とする請求項１に記載の画像解析装置。   2. The image analysis apparatus according to claim 1, further comprising means for displaying the pixel value distribution as a histogram. 前記表示手段は、前記画素値分布における所定の値より低い画素の割合に基づいて、前記プラークの不安定の度合いを表す指標を表示することを特徴とする請求項１または２に記載の画像解析装置。 The display means, based on the percentage of the lower pixels than a predetermined value in the pixel value distribution, the image analysis according to claim 1 or 2, characterized in that to display an index representing the instability degree of the plaque apparatus. 前記指定入力手段により、前記被検体の画像上に前記血管の所定位置を入力すると、
前記画像解析装置は、前記所定位置を含む断層像を表示するよう制御することを特徴とする請求項１乃至３のいずれか一項に記載の画像解析装置。 By inputting the predetermined position of the blood vessel on the image of the subject by the designation input means,
Wherein the image analyzer, the image analysis apparatus according to any one of claims 1 to 3, wherein the controller controls to display a tomographic image including a predetermined position. 前記所定の値は、ソフトプラークと繊維性プラークの境界を表すＣＴ値であることを特徴とする請求項３に記載の画像解析装置。   The image analysis apparatus according to claim 3, wherein the predetermined value is a CT value representing a boundary between a soft plaque and a fibrous plaque. 前記表示手段は指標を、プラークの種類別に画素面積あるいは画素割合で表示することを特徴とする請求項１乃至５のいずれか一項に記載の画像解析装置。 The image analysis apparatus according to any one of claims 1 to 5, wherein the display unit displays the index by a pixel area or a pixel ratio for each type of plaque. 前記指定入力手段は、前記画像上より所望の血管を指定し、
前記計測手段は、前記所望の血管の各断面位置で前記血管の断面を楕円又は円形で近似して、該楕円又は円形内の画素値分布を各断面位置で計測し、
該計測結果をグラフ化して表示する手段を備えたことを特徴とする請求項１乃至６のいずれか一項に記載の画像解析装置。 The designation input means designates a desired blood vessel from the image,
The measuring means approximates the cross section of the blood vessel with an ellipse or a circle at each cross-sectional position of the desired blood vessel, and measures a pixel value distribution within the ellipse or the circle at each cross-sectional position,
The image analysis apparatus according to any one of claims 1 to 6, characterized in that comprising means for graphically displays the measurement results. 医用画像診断装置により得られた被検体の画像より血管に付随するプラークを解析する画像解析方法であって、
前記画像上の所望の領域を指定するためのステップと、
該指定された領域内の画像の画素値分布を計測するステップと、
該計測した画素値分布に応じて、前記プラークの性質を評価するステップとを備えたことを特徴とする画像解析方法。 An image analysis method for analyzing plaque associated with a blood vessel from an image of a subject obtained by a medical image diagnostic apparatus,
Specifying a desired area on the image;
Measuring a pixel value distribution of an image in the designated region;
And a step of evaluating the property of the plaque according to the measured pixel value distribution. コンピュータに、医用画像診断装置により得られた被検体の画像より血管に付随するプラークを解析させる画像解析プログラムであって、
前記画像上の所望の領域を指定する入力を受け付けるための機能と、
該指定された領域内の画像の画素値分布を計測する機能と、
該計測した画素値分布に応じて、前記プラークの性質を表す指標を表示する機能と、を実行させることを特徴とする画像解析プログラム。 An image analysis program for causing a computer to analyze plaque associated with a blood vessel from an image of a subject obtained by a medical image diagnostic apparatus,
A function for receiving an input for designating a desired region on the image;
A function of measuring a pixel value distribution of an image in the designated region;
And a function of displaying an index representing the nature of the plaque according to the measured pixel value distribution.
JP2009277238A 2009-12-07 2009-12-07 Image analysis apparatus, image analysis method, and image analysis program Expired - Fee Related JP5670045B2 (en)

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JP2011115481A JP2011115481A (en) 2011-06-16
JP2011115481A5 true JP2011115481A5 (en) 2013-01-24
JP5670045B2 JP5670045B2 (en) 2015-02-18

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JP6553147B2 (en) * 2012-11-30 2019-07-31 キヤノンメディカルシステムズ株式会社 Medical image processing apparatus and medical image processing method
KR101564641B1 (en) 2014-02-05 2015-11-16 연세대학교 산학협력단 System and method for analyzing image of blood vessel
US10813612B2 (en) * 2019-01-25 2020-10-27 Cleerly, Inc. Systems and method of characterizing high risk plaques
AU2021205821A1 (en) 2020-01-07 2022-07-21 Cleerly, Inc. Systems, methods, and devices for medical image analysis, diagnosis, risk stratification, decision making and/or disease tracking
US20230289963A1 (en) 2022-03-10 2023-09-14 Cleerly, Inc. Systems, devices, and methods for non-invasive image-based plaque analysis and risk determination

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JP2004174218A (en) * 2002-10-01 2004-06-24 Japan Science & Technology Agency Apparatus and method for processing image and recording medium for storing program used for causing computer to execute the method
DE102004036726A1 (en) * 2004-07-29 2006-03-16 Siemens Ag Method and device for visualizing deposits in blood vessels, in particular in coronary vessels
US20060079746A1 (en) * 2004-10-11 2006-04-13 Perret Florence M Apparatus and method for analysis of tissue classes along tubular structures
EP2284794B1 (en) * 2004-11-26 2017-01-18 Toshiba Medical Systems Corporation X-ray CT apparatus and image processing device
US8077939B2 (en) * 2006-11-22 2011-12-13 General Electric Company Methods and systems for enhanced plaque visualization
JP2009082407A (en) * 2007-09-28 2009-04-23 Toshiba Corp Image processor and medical image processor
JP2009195561A (en) * 2008-02-22 2009-09-03 Toshiba Corp X-ray ct apparatus, image processing device and image processing program

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