CARDIAC MAGNETIC FIELD DIAGNOSTIC APPARATUS OF VENTRICLE DELAY POTENTIAL AND METHOD OF IDENTIFYING PART WHERE INTRAMYOCARDIAL EXCITATION IS UNEVENLY PROPAGATED

Title:

CARDIAC MAGNETIC FIELD DIAGNOSTIC APPARATUS OF VENTRICLE DELAY POTENTIAL AND METHOD OF IDENTIFYING PART WHERE INTRAMYOCARDIAL EXCITATION IS UNEVENLY PROPAGATED

Document Type and Number:

Japanese Patent JP3712350

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To provide a cardiac magnetic field diagnostic apparatus capable of identifying the position where the ventricle delay potential is generated safely, speedily and precisely, and provide a method of identifying a part where the intramyocardial excitation is unevenly propagated.
SOLUTION: A magnetic field distribution measuring device 1 prepares data on the magnetic field distribution in time sequence by measuring the non-contact magnetism in plural coordinates on the region of chest of a subject. A first computing unit2 prepares image data showing the propagation speed of the intramyocardial excitation in response to the magnetic field distribution measuring device 1. A second computing unit 3 prepares three-dimensional anatomical image data by processing plural tomographic image data separately obtained by using a tomographic diagnostic apparatus. A display device 4, receiving these data, displays an image showing the intramyocardial excitation electric current on the anatomical image. Therefore, when a ventricle delay potential is generated in the cardiac muscles, the anatomical relation of the position can be easily identified. Further, instead of the anatomical image, an image showing a normal stimulation propagation passage can be used as a template.

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Inventors:

Kenji Nakai
Yoshizawa Masato
Kohei Kawazoe
Keita Yamazaki
Satoshi Fujita
Ichiro Tamura

Application Number:

JP2000217835A

Publication Date:

November 02, 2005

Filing Date:

July 18, 2000

Export Citation:

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Assignee:

Japan Science and Technology Agency
TAKENAKA CORPORATION

International Classes:

G01R33/02; A61B5/04; A61B5/0452; A61B5/05; A61B6/03; G01R33/035; A61B5/055; (IPC1-7): A61B5/05

Domestic Patent References:

JP11128191A
JP10323335A

Attorney, Agent or Firm:

Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Hisato Noda
Masayuki Sakai
Yutaka Horii

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