Radiographic apparatus, radiographic method, program, computer-readable storage medium, radiographic system, image diagnosis aiding method, and image diagnosis aiding system

• US 7,050,537 B2
• Filed: 11/08/2002
• Issued: 05/23/2006
• Est. Priority Date: 04/03/2002
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Tsujii, Osamu
• Primary Examiner(s): Church, Craig E.
• Assistant Examiner(s): Yun, Jurie
• Application Number:
  US10/290,184
• Publication Number:
  US 20030190010A1
• Time in Patent Office: 1,292 Days
• Field of Search: 378/8, 378/95
• US Class Current: 378/95
• CPC Class Codes: A61B 6/4429 related to the mounting of source units and detector units
• CPC Class Codes: A61B 6/5217 extracting a diagnostic or physiological parameter from medical diagnostic data
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment

Abstract

A radiographic apparatus or system for imaging a dynamic state or process of an object such as a human body includes an indication unit for performing dynamic state guiding indication using a perceivable pattern corresponding to a dynamic state or motion to be engaged in by the patient, and an image acquisition unit for acquiring a plurality of radiographs of the human body. The resulting radiographs can be reviewed for diagnosis, and can be stored, either locally or at a remote location.

Claims

1. A radiographic apparatus for imaging a dynamic state of a human body, comprising:

an X-ray generating means for generating an X-ray;

a first indication means for guiding the human to perform cyclical movement with a dynamic state guiding indication using a perceivable pattern which is repeated with a predetermined timing;

an image acquisition means for acquiring X-ray image data constituting a plurality of X-ray images of the human body;

a control means for synchronizing said image acquisition with the dynamic state guiding indication and attaching to each of the images information representing dynamic state phase based on the dynamic state guiding indication;

a storage means for storing the number of cycles of dynamic state and/or number of cycles of guiding dynamic state;

a phase analysis means for analyzing the image data by extracting a measurement of an anatomical feature in the image data;

a determination means for determining if an analyzed phase of at least part of dynamic images matches the respective dynamic state phase in the information concerning dynamic state guiding indication attached to the image data;

a modification means for correcting the phase information attached to the image data and/or rearranging the dynamic images based on the phase information obtained by the analysis of all the dynamic images, if the determination means concludes the phases do not match; and

a second indication means for displaying dynamic images based on the image data using a display method in accordance with the attached information.

2. An apparatus according to claim 1,

wherein said storage means further stores a standard time of one cycle in accordance with the body part(s) to be imaged and/or the purpose of imaging.

3. An apparatus according to claim 1,

wherein the measure of a feature in the image date is the area or height of the lung region of the human body in the case of dynamic images of the chest with respiration.

4. An apparatus according to claim 1,

wherein said determination means determines whether the difference between a phase determined by the phase analysis unit and the phase attached to the image data is larger than a predetermined threshold value or not.

5. A radiographic method of imaging a dynamic state of a human body by a radiographic apparatus, including an image acquisition unit adapted to acquire a radiograph, said radiographic method comprising:

an X-ray generating step, for generating an X-ray;

a first indication step, for guiding the human to perform a cyclical movement with a dynamic state guiding indication using a perceivable pattern which is repeated with a predetermined timing;

an image acquisition step, for acquiring X-ray image data constituting a plurality of X-ray images of the human body;

a control step, for synchronizing said image acquisition with the dynamic state guiding indication and attaching to each of the images information representing dynamic state phase based on the dynamic state guiding indication;

a storage step, for storing the number of cycles of dynamic state and/or the number of cycles of guiding dynamic state;

a phase analysis step, for analyzing the image data by extracting a measurement of an anatomical feature in the image data;

a determination step, for determining if an analyzed phase of at least part of dynamic images matches the respective dynamic state phase in the information concerning dynamic state guiding indication attached to the image data;

a modification step, for correcting the phase information attached to the image data and/or rearranging the dynamic images based on the phase information obtained by the analysis of all the dynamic images, if the determination step concludes the phases do not match; and

a second indication step, for displaying dynamic images based on the image data using a display method in accordance with the attached information.

6. A computer-readable storage medium storing a program for having a computer execute a method of imaging a dynamic state of a human body by a radiographic apparatus including an image acquisition unit for acquiring a radiograph, said method comprising:

an X-ray generating step, for generating an X-ray;

a first indication step, for guiding the human to perform cyclical movement with a dynamic state guiding indication using a perceivable pattern which is repeated with a predetermined timing;

an image acquisition step, for acquiring X-ray image data constituting a plurality of X-ray images of the human body;

a control step, for synchronizing said image acquisition with the dynamic state guiding indication and attaching to each of the images information representing dynamic state phase based on the dynamic state guiding indication;

a storage step, for storing the number of cycles of dynamic state and/or the number of cycles of guiding dynamic state;

a phase analysis step, for analyzing the image data by extracting a measurement of an anatomical feature in the image data;

a determination step, for determining if an analyzed phase of at least part of dynamic images matches the respective dynamic state phase in the information concerning dynamic state guiding indication attached to the image data;

a modification step, for correcting the phase information attached to the image data and/or rearranging the dynamic images based on the phase information obtained by the analysis of all the dynamic images, if the determination step concludes the phases do not match; and

a second indication step, for displaying dynamic images based on the image data using a display method in accordance with the attached information.