GB2236397A - Tomography - Google Patents

Tomography

Info

Publication number
GB2236397A
GB2236397A GB9023905A GB9023905A GB2236397A GB 2236397 A GB2236397 A GB 2236397A GB 9023905 A GB9023905 A GB 9023905A GB 9023905 A GB9023905 A GB 9023905A GB 2236397 A GB2236397 A GB 2236397A
Authority
GB
United Kingdom
Prior art keywords
electrodes
distances
pairs
external shape
determining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9023905A
Other versions
GB9023905D0 (en
GB2236397B (en
Inventor
Brian Hilton Brown
David Charles Barber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Sheffield
Original Assignee
University of Sheffield
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Sheffield filed Critical University of Sheffield
Publication of GB9023905D0 publication Critical patent/GB9023905D0/en
Publication of GB2236397A publication Critical patent/GB2236397A/en
Application granted granted Critical
Publication of GB2236397B publication Critical patent/GB2236397B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0536—Impedance imaging, e.g. by tomography

Abstract

A method of determining the external shape of a body comprises placing a plurality of electrodes adjacent the surface at spaced intervals round the body, causing currents to flow in the body by applying an electrical potential between pairs of electrodes in turn, measuring potentials between other pairs of electrodes, relating the measured potentials to the distances between the corresponding points of current introduction and of potential measurement, and determining electrode positions consistent with these distances, which electrode positions define the external shape of the body. <IMAGE>
GB9023905A 1988-04-15 1990-11-02 Tomography Expired - Fee Related GB2236397B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888808969A GB8808969D0 (en) 1988-04-15 1988-04-15 Tomography
PCT/GB1989/000363 WO1989009564A1 (en) 1988-04-15 1989-04-10 Tomography

Publications (3)

Publication Number Publication Date
GB9023905D0 GB9023905D0 (en) 1991-01-09
GB2236397A true GB2236397A (en) 1991-04-03
GB2236397B GB2236397B (en) 1992-01-15

Family

ID=10635274

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888808969A Pending GB8808969D0 (en) 1988-04-15 1988-04-15 Tomography
GB9023905A Expired - Fee Related GB2236397B (en) 1988-04-15 1990-11-02 Tomography

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888808969A Pending GB8808969D0 (en) 1988-04-15 1988-04-15 Tomography

Country Status (5)

Country Link
AU (1) AU628334B2 (en)
FR (1) FR2630235B1 (en)
GB (2) GB8808969D0 (en)
IT (1) IT1229015B (en)
WO (1) WO1989009564A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7984567B2 (en) * 2008-10-07 2011-07-26 Christ Bill Bertakis Apparatus for cleaning simulated hair articles

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9113830D0 (en) * 1991-06-27 1991-08-14 Brown Brian H Applied potential tomography
GB2580164A (en) * 2018-12-21 2020-07-15 Imperial College Sci Tech & Medicine A sensor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138148A (en) * 1983-04-13 1984-10-17 Denis Nigel Smith Method and apparatus for deriving currents and potentials representative of the impedance of zones of a body
US4486835A (en) * 1981-05-13 1984-12-04 Yeda Research And Development Co. Ltd. Apparatus and techniques for electric tomography
US4617939A (en) * 1982-04-30 1986-10-21 The University Of Sheffield Tomography

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486835A (en) * 1981-05-13 1984-12-04 Yeda Research And Development Co. Ltd. Apparatus and techniques for electric tomography
US4617939A (en) * 1982-04-30 1986-10-21 The University Of Sheffield Tomography
GB2138148A (en) * 1983-04-13 1984-10-17 Denis Nigel Smith Method and apparatus for deriving currents and potentials representative of the impedance of zones of a body

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Proc 8th Ann Conf of IEEE/Eng in medicine and Biology Soc,7-10 Nov 86,Texas,US,Vol 2,1986,pp.1181-82 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7984567B2 (en) * 2008-10-07 2011-07-26 Christ Bill Bertakis Apparatus for cleaning simulated hair articles

Also Published As

Publication number Publication date
GB9023905D0 (en) 1991-01-09
WO1989009564A1 (en) 1989-10-19
GB2236397B (en) 1992-01-15
AU3446589A (en) 1989-11-03
IT1229015B (en) 1991-07-12
FR2630235A1 (en) 1989-10-20
GB8808969D0 (en) 1988-05-18
FR2630235B1 (en) 1994-09-02
IT8920139A0 (en) 1989-04-14
AU628334B2 (en) 1992-09-17

Similar Documents

Publication Publication Date Title
DE3375279D1 (en) Method and apparatus for the contactless measurement of charge concentrations and potential differences in biological organisms
SE7812092L (en) DEVICE FOR DESTRUCTING A BIOLOGICAL TISSUE PARTY
IT1143402B (en) ELECTRODES COMPLEX FOR CARDIAC ELECTRIC MEASUREMENTS AND TEMPORARY CARDIAC STIMULATION
DE3677827D1 (en) ELECTRODE FOR ELECTROCHEMICAL PROBE.
EP1224908A4 (en) Body fat measurement method and device therefor
DK139895B (en) Electrochemical measuring electrode for transcutaneous measurement.
FR2575925B1 (en) ELECTRODE FOR HEART STIMULATION AND DETECTION PROBE
IT7822519A0 (en) TEST DEVICE TO INDICATE AN ELECTRICAL VOLTAGE AND, OR ITS POLARITY, AS WELL AS THE PASSAGE OF CURRENT IN AN ELECTRICAL CONDUCTOR.
EP0172616A3 (en) Tomography
GB2236397A (en) Tomography
FR2445532B1 (en)
BR8801683A (en) DEVICE FOR MEASURING THE INTENSITY OF AN ELECTRIC CURRENT BY FARADAY EFFECT USED IN THE MIDDLE OF A SAGNAC INTERFEROMETER
DE3478146D1 (en) Electrochemical probe head with screen-printed electrodes
JPS54144785A (en) Electrode for measuring body surface potential
SE8501270D0 (en) Electrode for Saturation of Relative Capacitivity
DK84886A (en) METAL / METAL OXID MEASURING ELECTRODE FOR PH MEASUREMENT
JPS6429753A (en) Method for measuring pipe current of metal pipe
SE8604944L (en) MEASUREMENT FOR ELECTRIC SENSOR LENGTH IN AN ELECTRON
JPS6444838A (en) Sensor used in power conductive heating method
JPS57185452A (en) Recording device
GB1556749A (en) Electrode arragements for picking up electrical body potentials of low voltage
JPS5687802A (en) Measuring method for surface area of solid body
JPS536078A (en) Measuring method of plural ac voltages and currents
SU1295310A1 (en) Device for measuring electric conduction of electrolyte solutions
IT7823379A0 (en) PROCEDURE FOR MEASURING THE DISTRIBUTION OF ANODIC CURRENTS IN ELECTROLYSIS CELLS FOR ALKALI-CHLORINE.

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010410