Method of measuring a biomagnetic field, method of analyzing a measured biomagnetic field, method of displaying biomagnetic field data, and an apparatus therefor

• US 7,194,121 B2
• Filed: 02/04/2004
• Issued: 03/20/2007
• Est. Priority Date: 10/02/1997
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Suzuki, Hiroyuki, Tsukada, Keiji, Kawasaki, Takafumi, Machida, Kazuhisa
• Primary Examiner(s): Dang; Duy M.
• Application Number:
  US10/770,525
• Publication Number:
  US 20040158168A1
• Time in Patent Office: 1,140 Days
• Field of Search: 382/128, 382/320, 600/409, 324/248
• US Class Current: 382/128
• CPC Class Codes: A61B 2562/02 Details of sensors specially adapted for in-vivo measurements
• CPC Class Codes: A61B 2562/046 in a matrix array
• CPC Class Codes: A61B 5/243 specially adapted for magnetocardiographic [MCG] signals
• CPC Class Codes: A61B 5/7435 Displaying user selection data, e.g. icons in a graphical user interface
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units
• CPC Class Codes: G01R 33/10 Plotting field distribution ; Measuring field distribution
• CPC Class Codes: G16H 40/63 for local operation
• CPC Class Codes: Y10S 128/922 including image analysis

Abstract

A biomagnetic field map display apparatus for measuring a biomagnetic field generated by a biotest sample at positions arranged in rows and columns and displaying a magnetic field map obtained by processing the measured biomagnetic field. An analysis data display area waveform-displays the measured biomagnetic field at channels in a row or a column of channels which are arranged in rows and columns so as to respectively correspond to the positions. A particular channel is designated as a reference channel for an averaging process out of the plurality of channels or different channels therefrom at which different biosignals from those of the biomagnetic field are acquired from the biotest sample. Means for averaging-processing the measured biomagnetic field using the designated particular channel as the reference channel displays in the analysis data display area a map on the averaging-processed biomagnetic field.

Claims

1. A magnetic field map displaying method for detecting a magnetic field generated from a biotest sample by a plurality of magnetic sensors and displaying measurement data obtained on the basis of the detected magnetic field in any desired mode, comprising:

(1) reading information of biotest samples and measurement data relating thereto from a data storage and displaying on a biotest sample list screen the read-out information of the biotest samples and the read-out measurement data in such a manner as to allow selection thereof;

(2) on a data measurement screen-setting measurement conditions of a biotest sample selected on the biotest sample list screen and performing an operation for starting measurement; and

(3) on a data analysis screen, setting analysis conditions of the measurement data relating to the biotest sample selected on the biotest sample list screen and displaying an analyzed result,

wherein a process function display area for selecting another screen and biotest sample display area for displaying the selected biotest sample information are displayed on each of the biotest sample list screen, the data measurement screen and the data analysis screen in predetermined positions.

2. A magnetic field map displaying method for detecting a magnetic field generated from a biotest sample by a plurality of magnetic sensors and displaying measurement data obtained on the basis of the detected magnetic field in any desired mode, comprising:

(1) reading information of biotest samples and measurement data relating thereto from a data storage and displaying on a biotest sample list screen the read-out information of the biotest samples and the read-out measurement data in such a manner as to allow selection thereof; and

(2) on a data measurement screen, setting measurement conditions of a biotest sample selected on the biotest sample list screen, performing an operation for starting measurement, displaying a measurement state under the measurement conditions as a magnetic field waveform, and performing an operation for storing measurement data in the measurement state,

wherein a process function display area for selecting another screen and a biotest sample display area for displaying the selected biotest sample information are displayed on each of the biotest sample list screen and the data measurement screen in predetermined positions.