JPH0346884U - - Google Patents

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Publication number
JPH0346884U
JPH0346884U JP10734089U JP10734089U JPH0346884U JP H0346884 U JPH0346884 U JP H0346884U JP 10734089 U JP10734089 U JP 10734089U JP 10734089 U JP10734089 U JP 10734089U JP H0346884 U JPH0346884 U JP H0346884U
Authority
JP
Japan
Prior art keywords
subject
data
detection means
positron
administered
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
JP10734089U
Other languages
Japanese (ja)
Other versions
JP2573709Y2 (en
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 filed Critical
Priority to JP1989107340U priority Critical patent/JP2573709Y2/en
Publication of JPH0346884U publication Critical patent/JPH0346884U/ja
Application granted granted Critical
Publication of JP2573709Y2 publication Critical patent/JP2573709Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例にかかるポジトロ
ンＣＴ装置の模式図、第２図は従来例にかかるポ
ジトロンＣＴ装置の模式図である。 １……放射線検出器、１１……シンチレータ、
１２……光電子増倍管、２……同時計数回路、２
１……２進化回路、３……メモリ、４……ＣＰＵ
、５……ライン線源、６……駆動装置、７……位
置検出回路、８……メモリ、９……被検体。 FIG. 1 is a schematic diagram of a positron CT apparatus according to an embodiment of this invention, and FIG. 2 is a schematic diagram of a conventional positron CT apparatus. 1...Radiation detector, 11...Scintillator,
12...Photomultiplier tube, 2...Coincidence circuit, 2
1...Binary evolution circuit, 3...Memory, 4...CPU
, 5... Line radiation source, 6... Drive device, 7... Position detection circuit, 8... Memory, 9... Subject.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 円周上に配列された多数の放射線検出手段と、
該放射線検出手段の各々の出力が導かれ、同時計
数データを収集する手段と、被検体の周囲に回転
する実質的な点線源の位置を検出する手段と、該
点線源の位置ごとに各放射線検出手段からのシン
グルイベントの信号によりデータを収集する手段
と、ＲＩが投与されていない状態の被検体がある
場合とない場合とにおいて収集されたシングルイ
ベントデータを比較して吸収補正データを求めて
記憶する手段と、該記憶された吸収補正データを
用いて、ポジトロン放出性核種のＲＩが投与され
た被検体に関して収集された同時計数データを補
正する手段とを備えることを特徴とするポジトロ
ンＣＴ装置。 A large number of radiation detection means arranged on the circumference,
the output of each of the radiation detection means is guided, means for collecting coincidence data, means for detecting the position of a substantially point source rotating around the subject; Absorption correction data is obtained by comparing the means for collecting data using a single event signal from the detection means and the single event data collected with and without a subject in a state where RI has not been administered. A positron CT apparatus comprising: a means for storing; and a means for correcting coincidence data collected for a subject to whom RI of a positron-emitting nuclide has been administered, using the stored absorption correction data. .
JP1989107340U 1989-09-13 1989-09-13 Positron CT system Expired - Lifetime JP2573709Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989107340U JP2573709Y2 (en) 1989-09-13 1989-09-13 Positron CT system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989107340U JP2573709Y2 (en) 1989-09-13 1989-09-13 Positron CT system

Publications (2)

Publication Number Publication Date
JPH0346884U true JPH0346884U (en) 1991-04-30
JP2573709Y2 JP2573709Y2 (en) 1998-06-04

Family

ID=31656032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989107340U Expired - Lifetime JP2573709Y2 (en) 1989-09-13 1989-09-13 Positron CT system

Country Status (1)

Country Link
JP (1) JP2573709Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006098411A (en) * 2005-11-15 2006-04-13 Hitachi Ltd PET apparatus and method for controlling PET apparatus
JP2009058528A (en) * 2008-12-01 2009-03-19 Hitachi Ltd Radiation inspection equipment
US7986763B2 (en) 2001-12-03 2011-07-26 Hitachi, Ltd. Radiological imaging apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226674A (en) * 1985-03-30 1986-10-08 Shimadzu Corp Method for absorbing and correcting single photon ect device
JPS623677A (en) * 1985-06-30 1987-01-09 Shimadzu Corp Positron CT correction method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226674A (en) * 1985-03-30 1986-10-08 Shimadzu Corp Method for absorbing and correcting single photon ect device
JPS623677A (en) * 1985-06-30 1987-01-09 Shimadzu Corp Positron CT correction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7986763B2 (en) 2001-12-03 2011-07-26 Hitachi, Ltd. Radiological imaging apparatus
US8116427B2 (en) 2001-12-03 2012-02-14 Hitachi, Ltd. Radiological imaging apparatus
JP2006098411A (en) * 2005-11-15 2006-04-13 Hitachi Ltd PET apparatus and method for controlling PET apparatus
JP2009058528A (en) * 2008-12-01 2009-03-19 Hitachi Ltd Radiation inspection equipment

Also Published As

Publication number Publication date
JP2573709Y2 (en) 1998-06-04

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Legal Events

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EXPY Cancellation because of completion of term