JP2014138909A5 - - Google Patents

Download PDF

Info

Publication number
JP2014138909A5
JP2014138909A5 JP2014096337A JP2014096337A JP2014138909A5 JP 2014138909 A5 JP2014138909 A5 JP 2014138909A5 JP 2014096337 A JP2014096337 A JP 2014096337A JP 2014096337 A JP2014096337 A JP 2014096337A JP 2014138909 A5 JP2014138909 A5 JP 2014138909A5
Authority
JP
Japan
Prior art keywords
ray tube
ray
rotation axis
subject
control unit
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.)
Pending
Application number
JP2014096337A
Other languages
Japanese (ja)
Other versions
JP2014138909A (en
Filing date
Publication date
Application filed filed Critical
Priority to JP2014096337A priority Critical patent/JP2014138909A/en
Priority claimed from JP2014096337A external-priority patent/JP2014138909A/en
Publication of JP2014138909A publication Critical patent/JP2014138909A/en
Publication of JP2014138909A5 publication Critical patent/JP2014138909A5/ja
Pending legal-status Critical Current

Links

Description

本発明に係るＸ線コンピュータ断層撮影装置は、被検体の周囲を回転自在なＸ線管を有する架台と、前記Ｘ線管からのＸ線の線量を前記回転軸で高く周辺で低くするために前記Ｘ線管と前記被検体との間に配置されるフィルタと、前記Ｘ線管の回転軸に直交する２軸に関し移動自在な天板を有する寝台と、前記被検体に関する関心位置を前記Ｘ線管の回転軸の位置に一致又は最接近させるために前記天板の移動を制御する制御部とを具備する。 An X-ray computed tomography apparatus according to the present invention includes a gantry having an X-ray tube that is rotatable around a subject, and an X-ray dose from the X-ray tube that is high at the rotation axis and low at the periphery. wherein a filter is disposed between the X-ray tube and the subject, and a bed with the X-ray tube movable top board related to two axes perpendicular to the axis of rotation of the point of interest related to the subject And a control unit that controls movement of the top plate so as to coincide with or be closest to the position of the rotation axis of the X-ray tube.

Claims (5)

被検体の周囲を回転自在なＸ線管を有する架台と、
前記Ｘ線管からのＸ線の線量を前記回転軸で高く周辺で低くするために前記Ｘ線管と前記被検体との間に配置されるフィルタと、
前記Ｘ線管の回転軸に直交する２軸に関し移動自在な天板を有する寝台と、
前記被検体に関する関心位置を前記Ｘ線管の回転軸の位置に一致又は最接近させるために前記天板の移動を制御する制御部とを具備することを特徴とするＸ線コンピュータ断層撮影装置。 A gantry having an X-ray tube rotatable around the subject;
A filter disposed between the X-ray tube and the subject in order to increase the X-ray dose from the X-ray tube at the rotation axis and lower at the periphery;
A bed having a movable top board related to two axes perpendicular to the rotation axis of the X-ray tube,
An X-ray computed tomography apparatus comprising: a control unit that controls movement of the top plate so that a position of interest related to the subject coincides with or is closest to a position of a rotation axis of the X-ray tube. 前記制御部は、前記関心位置を前記Ｘ線管の回転中心に一致させるための前記天板の移動距離が前記天板の移動限界の範囲内であるか否かを判断することを特徴とする請求項１記載のＸ線コンピュータ断層撮影装置。The control unit determines whether or not a movement distance of the top plate for making the position of interest coincide with a rotation center of the X-ray tube is within a range of movement limits of the top plate. The X-ray computed tomography apparatus according to claim 1. 前記制御部は、前記指定された位置を前記Ｘ線管の回転軸の位置に一致させるために前記天板の移動を制御することを特徴とする請求項１記載のＸ線コンピュータ断層撮影装置。   The X-ray computed tomography apparatus according to claim 1, wherein the control unit controls the movement of the top plate so that the designated position coincides with a position of a rotation axis of the X-ray tube. 前記制御部は、前記関心位置を前記Ｘ線管の回転軸の位置に一致させたときに前記被検体の全域が撮影視野に収まっているか否かを判断することを特徴とする請求項１記載のＸ線コンピュータ断層撮影装置。2. The control unit according to claim 1, wherein when the position of interest is made to coincide with a position of a rotation axis of the X-ray tube, it is determined whether or not the entire area of the subject is within an imaging visual field. X-ray computed tomography apparatus. 前記制御部は、前記被検体の全域が撮影視野に収まることを限界条件として、画像再構成範囲の中心を前記Ｘ線管の回転軸に最接近させるために前記天板の移動を制御することを特徴とする請求項４記載のＸ線コンピュータ断層撮影装置。The control unit controls the movement of the top plate to bring the center of the image reconstruction range closest to the rotation axis of the X-ray tube, with the limit condition that the entire area of the subject is within the field of view. The X-ray computed tomography apparatus according to claim 4.
JP2014096337A 2014-05-07 2014-05-07 X-ray computer tomography apparatus Pending JP2014138909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014096337A JP2014138909A (en) 2014-05-07 2014-05-07 X-ray computer tomography apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014096337A JP2014138909A (en) 2014-05-07 2014-05-07 X-ray computer tomography apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2012281487A Division JP2013056221A (en) 2012-12-25 2012-12-25 X-ray computerized tomography apparatus

Publications (2)

Publication Number Publication Date
JP2014138909A JP2014138909A (en) 2014-07-31
JP2014138909A5 true JP2014138909A5 (en) 2014-12-04

Family

ID=51415977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014096337A Pending JP2014138909A (en) 2014-05-07 2014-05-07 X-ray computer tomography apparatus

Country Status (1)

Country Link
JP (1) JP2014138909A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9880298B2 (en) * 2015-03-25 2018-01-30 Toshiba Medical Systems Corporation Method and device for determining a position of point and line sources in a positron emission tomography (PET) apparatus
JP6815074B2 (en) * 2015-09-30 2021-01-20 キヤノンメディカルシステムズ株式会社 X-ray CT equipment and image processing equipment

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122848A (en) * 1984-11-19 1986-06-10 株式会社東芝 Patient monito system of ct apparatus
JPS61249449A (en) * 1985-04-30 1986-11-06 株式会社東芝 X-ray ct apparatus
JP3512875B2 (en) * 1993-11-26 2004-03-31 東芝医用システムエンジニアリング株式会社 X-ray computed tomography equipment
JP3678382B2 (en) * 1997-01-30 2005-08-03 株式会社東芝 X-ray CT system
JP2000237184A (en) * 1999-02-19 2000-09-05 Ge Yokogawa Medical Systems Ltd Photographing method in x-ray ct device and x-ray ct device
JP2004180715A (en) * 2002-11-29 2004-07-02 Toshiba Corp X-ray computed tomography apparatus

Similar Documents

Publication Publication Date Title
JP2016135319A5 (en)
WO2017116530A3 (en) Radioabsorbent assemblies
JP2015058225A5 (en)
WO2014165455A3 (en) Helical computed tomography
JP2015527158A5 (en)
JP2012066075A5 (en)
JP2013523316A5 (en)
JP2016538932A5 (en)
EP3595528C0 (en) Patient movement correction for cone-beam computed tomography
EP3089668A4 (en) Radiation detector and computer tomography apparatus including the same
JP2016503721A5 (en)
JP2014068732A5 (en)
WO2015195570A3 (en) Radiography and computed tomography with high-energy electron beams
WO2011135193A3 (en) Medical computed tomography imaging apparatus
WO2012095797A3 (en) 4d contrast enhanced computed tomography (ct)
EP3248545A4 (en) Radiation shielding liquid filter, and x-ray imaging device provided with same
JP2017524460A5 (en)
JP2014138909A5 (en)
EP3562400A4 (en) Computed tomography and positioning of the anatomy desired to be imaged
JP2015100575A5 (en)
JP2013180024A5 (en)
JP2018143699A5 (en)
PL3214628T3 (en) Line-frequency rotary transformer for computed tomography gantry
JP2014018657A5 (en)
JP2014083357A5 (en)