GB2002987A - Improvements in or relating to radiography - Google Patents

Improvements in or relating to radiography

Info

Publication number
GB2002987A
GB2002987A GB7829739A GB7829739A GB2002987A GB 2002987 A GB2002987 A GB 2002987A GB 7829739 A GB7829739 A GB 7829739A GB 7829739 A GB7829739 A GB 7829739A GB 2002987 A GB2002987 A GB 2002987A
Authority
GB
United Kingdom
Prior art keywords
heart
patient
scanning movements
movement
movements
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
GB7829739A
Other versions
GB2002987B (en
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.)
EMI Ltd
Original Assignee
EMI Ltd
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 EMI Ltd filed Critical EMI Ltd
Priority to GB7829739A priority Critical patent/GB2002987B/en
Publication of GB2002987A publication Critical patent/GB2002987A/en
Application granted granted Critical
Publication of GB2002987B publication Critical patent/GB2002987B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/54—Control of apparatus or devices for radiation diagnosis
    • A61B6/541—Control of apparatus or devices for radiation diagnosis involving acquisition triggered by a physiological signal
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]

Abstract

Computerised tomographic apparatus is described in which a radiation source 25 and an associated detector array 26 execute, concomitantly, reciprocating lateral scanning movements and rotational scanning movements relative to a patient's body, the scanning movements being effected in the plane of a cross-sectional slice of the body which intersects the patient's heart. The patient is located so that the heart is substantially at the centre of the scanning movements. The lateral movements are substantially sinusoidal, arranged so that a substantially linear portion of the movement occurs when the source irradiates the heart, and the rotational movement is continuous or substantially continuous and any pauses are only brief, and during alternate lateral scans when the aforementioned substantially linear portions of movement occur. The scanning movements are synchronised to the patient's heart beats so that the heart is irradiated during a quiescent phase of its movement. <IMAGE>
GB7829739A 1977-07-15 1978-07-13 Radiography Expired GB2002987B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7829739A GB2002987B (en) 1977-07-15 1978-07-13 Radiography

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2988877 1977-07-15
GB7829739A GB2002987B (en) 1977-07-15 1978-07-13 Radiography

Publications (2)

Publication Number Publication Date
GB2002987A true GB2002987A (en) 1979-02-28
GB2002987B GB2002987B (en) 1982-07-14

Family

ID=26260137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7829739A Expired GB2002987B (en) 1977-07-15 1978-07-13 Radiography

Country Status (1)

Country Link
GB (1) GB2002987B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018872A1 (en) * 1979-05-02 1980-11-12 Thomson-Csf Method and apparatus for tomographic density evaluation
EP0024698A2 (en) * 1979-08-24 1981-03-11 Siemens Aktiengesellschaft Apparatus for the bidimensional representation of a plane of an object by computed tomography
EP0244730A1 (en) * 1986-05-09 1987-11-11 Siemens Aktiengesellschaft Device for smashing concretions present in a living body
EP0257199A1 (en) * 1986-07-18 1988-03-02 Siemens Aktiengesellschaft Device for the destruction of calculi
GB2232332A (en) * 1989-05-30 1990-12-05 Gen Electric Translate rotate scanning method for X-ray imaging
WO2020249857A1 (en) * 2019-06-03 2020-12-17 Planmeca Oy Ct imaging apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0018872A1 (en) * 1979-05-02 1980-11-12 Thomson-Csf Method and apparatus for tomographic density evaluation
FR2455451A1 (en) * 1979-05-02 1980-11-28 Radiologie Cie Gle TOMODENSITOMETRY PROCESS AND TOMODENSITOMETER SUITABLE FOR THIS PROCESS
EP0024698A2 (en) * 1979-08-24 1981-03-11 Siemens Aktiengesellschaft Apparatus for the bidimensional representation of a plane of an object by computed tomography
EP0024698A3 (en) * 1979-08-24 1983-03-30 Siemens Aktiengesellschaft Method and apparatus for the bidimensional representation of a plane of an object by computed tomography
EP0244730A1 (en) * 1986-05-09 1987-11-11 Siemens Aktiengesellschaft Device for smashing concretions present in a living body
EP0257199A1 (en) * 1986-07-18 1988-03-02 Siemens Aktiengesellschaft Device for the destruction of calculi
US4787371A (en) * 1986-07-18 1988-11-29 Siemens Aktiengesellschaft Apparatus for the disintegration of calculi
GB2232332A (en) * 1989-05-30 1990-12-05 Gen Electric Translate rotate scanning method for X-ray imaging
AU622307B2 (en) * 1989-05-30 1992-04-02 General Electric Company Translate rotate scanning method for x-ray imaging
GB2232332B (en) * 1989-05-30 1993-05-26 Gen Electric Translate rotate scanning method for x-ray imaging
WO2020249857A1 (en) * 2019-06-03 2020-12-17 Planmeca Oy Ct imaging apparatus
US11684319B2 (en) 2019-06-03 2023-06-27 Planmeca Oy CT imaging apparatus

Also Published As

Publication number Publication date
GB2002987B (en) 1982-07-14

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970713