JP2019081034A5

JP2019081034A5 - Medical diagnostic apparatus, medical image processing apparatus, and medical image processing method

Info

Publication number: JP2019081034A5
Application number: JP2019036079A
Authority: JP
Filing date: 2019-02-28
Publication date: 2020-02-20
Anticipated expiration: 2034-09-30

Description

本実施形態は、超音波画像を用いて心筋（心臓を構成する筋肉）等の組織の局所的な運動情報を出力することで医学診断に有効な情報を提供する医用診断装置、医用画像処理装置及び医用画像処理方法に関する。 The present embodiment provides a medical diagnostic apparatus and a medical image processing apparatus that provide information effective for medical diagnosis by outputting local motion information of a tissue such as a myocardium (muscle constituting a heart) using an ultrasonic image. And a medical image processing method .

上記事情に鑑み、目的は、解析や診断に要する時間を削減するとともに解析や診断の精度を向上させることが可能な医用診断装置、医用画像処理装置及び医用画像処理方法を提供することである。 In view of the above circumstances, an object is to provide a medical diagnostic apparatus, a medical image processing apparatus, and a medical image processing method capable of reducing the time required for analysis and diagnosis and improving the accuracy of analysis and diagnosis.

Claims

  A scanner that scans a three-dimensional area and obtains three-dimensional volume data of the three-dimensional area,
  Generating a three-dimensional shape of the first portion corresponding to the blood inflow path to the heart chamber;
    The first region is approximated using a first shape based on a contour of the first region in a plurality of first cross-sectional images generated from the three-dimensional volume data,
    The plurality of first cross-sectional images intersect with each other along an extending direction of the first region through which blood flows.
  Generating a three-dimensional shape of a second portion corresponding to a blood outflow path from the heart chamber;
    The second part is based on a contour of the second part in at least one second cross-sectional image generated from the three-dimensional volume data using a second shape different from the first shape. Approximated
    The at least one second cross-sectional image is obtained along an extending direction of the second region through which blood flows,
  By using the generated three-dimensional shape of the first part and the generated three-dimensional shape of the second part, the three-dimensional shape of the first part and the three-dimensional shape of the second part are changed. Generating a three-dimensional shape of the heart chamber, including:
  Rendering is performed using the three-dimensional shape of the heart chamber including the three-dimensional shape of the first part and the three-dimensional shape of the second part, and the first part, the second part, and Generate a three-dimensional image representing at least a portion of the heart including the heart chamber,
  Controlling the display to display the three-dimensional image
  Processing circuit and
  A medical diagnostic device comprising:

  The processing circuit includes:
    Using at least two or more of the first cross-sectional images obtained along the extending direction of the first region, setting a contour line of at least a part of a myocardial region of the first region,
    By setting an ellipse on each of the plurality of third cross sections based on each position through which the contour passes, the cross section intersects an axis along the extending direction of the first portion. Approximating the contour of the first portion on a plurality of third cross sections;
    Obtain the three-dimensional shape of the first part by interpolating a plurality of the ellipses
  The medical diagnostic device according to claim 1.

  The processing circuit includes:
    Setting a contour line of at least a part of a myocardial region of the second part using the second cross-sectional image obtained along the extending direction of the second part;
    By setting a circle on each of the fourth cross sections based on each position where the contour passes in each of the plurality of fourth cross sections, the circle intersects the axis along the extending direction of the second portion. Approximating the contour of the second part on a plurality of fourth sections,
    Acquire the three-dimensional shape of the second part by complementing a plurality of the circles
  The medical diagnostic apparatus according to claim 1 or 2.

The processing circuit further generates a three-dimensional image of a ventricle including the first part and the second part by further using information about the heart chamber prepared in advance.
The medical diagnostic apparatus according to claim 1.

The second cross-sectional image along the extending direction of the second portion is the same cross-section as any one of the plurality of first cross-sectional images along the extending direction of the first portion.
The medical diagnostic apparatus according to any one of claims 1 to 4.

  The processing circuit includes:
    At least a first part in volume data of another time phase using an axis along the extension direction of the first part and an axis along the extension direction of the second part in a predetermined time phase Tracking the axis along the direction of extension of and the axis along the second direction of extension,
    For the volume data of at least another time phase, the first section is generated using the plurality of first cross-sectional images generated from the volume data along the extending direction of the tracked first portion. Set the part,
    Generating a three-dimensional shape of the first part, which is approximated based on a contour line of at least a part of the myocardial region of the set first part;
    Using the at least one second cross-sectional image generated from the volume data along the extension direction of the tracked second part with respect to the volume data of the at least another phase, the second Set the part of
    Generating a three-dimensional shape of the second part, which is approximated based on at least a part of a contour line of the myocardial region of the set second part;
    Using the three-dimensional shape of the first part and the three-dimensional shape of the second part in the at least another time phase, a tertiary shape of the heart chamber including the first part and the second part Generating the three-dimensional image representing the original myocardial shape,
  The medical diagnostic device according to any one of claims 1 to 5.

  The chamber is the right ventricle;
  The first portion is a tubular structure including a three-way valve,
  The second portion is a tubular structure including a pulmonary valve;
  The medical diagnostic apparatus according to any one of claims 1 to 6.

  The heart chamber is a ventricle;
  The first portion corresponds to a blood inflow path to the ventricle;
  The second site corresponds to a blood outflow path from the ventricle;
  The medical diagnostic apparatus according to any one of claims 1 to 6.

  The chamber is the atrium,
  The first portion corresponds to a blood outflow path from the atria;
  The second portion corresponds to a blood inflow path to the atria;
  The medical diagnostic apparatus according to any one of claims 1 to 6.

  By using the first shape to approximate based on the contour of the blood inflow path in the plurality of first cross-sectional images generated from the three-dimensional volume data of at least a part of the heart, the blood inflow path to the right ventricle Generates a three-dimensional shape representing
    The plurality of first cross-sectional images cross each other along an extending direction of the blood inflow path through which blood flows.
  The right ventricle is approximated by using a second shape different from the first shape based on a contour of a blood outflow path in at least one second cross-sectional image generated from the three-dimensional volume data. Generates a three-dimensional shape representing the blood outflow path from
    The at least one second cross-sectional image is obtained along an extending direction of the blood outflow path through which blood flows,
  A rendering process is performed using the three-dimensional shape representing the blood inflow path and the three-dimensional shape representing the blood outflow path, and the at least part of the heart including the blood inflow path, the blood outflow path, and the right ventricle Generates a three-dimensional image of
  Controlling a display to display the three-dimensional image,
  Processing circuit
  A medical diagnostic device comprising:

  Generating a three-dimensional shape of the first portion corresponding to the blood inflow path to the heart chamber;
    The first region is approximated using a first shape based on a contour of the first region in each of a plurality of first tomographic images generated from volume data of at least a part of the heart,
    The first cross-sectional images intersect with each other along an extending direction of the first region through which blood flows.
  Generating a three-dimensional shape of a second portion corresponding to a blood outflow path from the heart chamber;
    The second region is a second region in at least one second cross-sectional image generated from volume data of at least a part of the heart using a second shape different from the first shape. Is approximated based on the contour of
    The at least one second cross-sectional image is obtained along an extending direction of the second region through which blood flows,
  By using the generated three-dimensional shape of the first part and the generated three-dimensional shape of the second part, the three-dimensional shape of the first part and the three-dimensional shape of the second part are changed. Generating a three-dimensional shape of the heart chamber, including:
  Rendering is performed using the three-dimensional shape of the heart chamber including the three-dimensional shape of the first part and the three-dimensional shape of the second part, and the first part, the second part, and Generate a three-dimensional image representing at least a portion of the heart including the heart chamber,
  Controlling the display to display the three-dimensional image
  Processing circuit
  A medical image processing apparatus comprising:

  By using the first shape to approximate based on the contour of the blood inflow path in the plurality of first cross-sectional images generated from the three-dimensional volume data of at least a part of the heart, the blood inflow path to the right ventricle Generates a three-dimensional shape representing
    The plurality of first cross-sectional images cross each other along an extending direction of the blood inflow path through which blood flows.
  The right ventricle is approximated by using a second shape different from the first shape based on a contour of a blood outflow path in at least one second cross-sectional image generated from the three-dimensional volume data. Generates a three-dimensional shape representing the blood outflow path from
    The at least one second cross-sectional image is obtained along an extending direction of the blood outflow path through which blood flows,
  A rendering process is performed using the three-dimensional shape representing the blood inflow path and the three-dimensional shape representing the blood outflow path, and the at least part of the heart including the blood inflow path, the blood outflow path, and the right ventricle Generates a three-dimensional image of
  Controlling a display to display the three-dimensional image,
  Processing circuit
  A medical image processing apparatus comprising:

  Generating a three-dimensional shape of the first portion corresponding to the blood inflow path to the heart chamber;
    The first region is approximated using a first shape based on a contour of the first region in a plurality of first cross-sectional images generated from volume data of at least a part of the heart,
    The first cross-sectional images cross each other along an extending direction of the first portion through which blood flows,
    The cross-sectional image is for a three-dimensional area,
  Generating a three-dimensional shape of a second portion corresponding to a blood outflow path from the heart chamber;
    The second region is a second region in at least one second cross-sectional image generated from volume data of at least a part of the heart using a second shape different from the first shape. Is estimated based on the contour of
    The at least one second cross-sectional image is obtained along an extending direction of the second region through which blood flows,
  By using the generated three-dimensional shape of the first part and the generated three-dimensional shape of the second part, the three-dimensional shape of the first part and the three-dimensional shape of the second part are changed. Generating a three-dimensional shape of the heart chamber, including:
  Rendering is performed using the three-dimensional shape of the heart chamber including the three-dimensional shape of the first part and the three-dimensional shape of the second part, and the first part, the second part, and Generating a three-dimensional image representing at least a portion of the heart including the heart chamber;
  Controlling a display to display the three-dimensional image;
  A medical image processing method comprising:

The number of the at least one second cross-sectional image is smaller than the number of the plurality of first cross-sectional images,
The medical diagnostic apparatus according to any one of claims 1 to 9.

The number of the at least one second cross-sectional image is smaller than the number of the plurality of first cross-sectional images,
The medical diagnostic apparatus according to claim 10.

The number of the at least one second cross-sectional image is smaller than the number of the plurality of first cross-sectional images,
The medical image processing apparatus according to claim 11.

The number of the at least one second cross-sectional image is smaller than the number of the plurality of first cross-sectional images,
The medical image processing apparatus according to claim 12.

The number of the at least one second cross-sectional image is smaller than the number of the plurality of first cross-sectional images,
The medical image processing method according to claim 13.

The first shape is elliptical, and the second shape is circular;
The medical diagnostic apparatus according to any one of claims 1 to 9, or claim 14.

The processing circuit receives an input from a user corresponding to the outline of the first region and the outline of the second region;
The medical diagnostic apparatus according to claim 7.

The first shape is elliptical, and the second shape is circular;
The medical diagnostic apparatus according to claim 10 or claim 15.

The first shape is elliptical, and the second shape is circular;
The medical image processing apparatus according to claim 11.

The first shape is elliptical, and the second shape is circular;
The medical image processing device according to claim 12.

The first shape is elliptical, and the second shape is circular;
The medical image processing method according to claim 13 or claim 18.