JP4708147B2 - X線ct装置 - Google Patents
X線ct装置 Download PDFInfo
- Publication number
- JP4708147B2 JP4708147B2 JP2005293792A JP2005293792A JP4708147B2 JP 4708147 B2 JP4708147 B2 JP 4708147B2 JP 2005293792 A JP2005293792 A JP 2005293792A JP 2005293792 A JP2005293792 A JP 2005293792A JP 4708147 B2 JP4708147 B2 JP 4708147B2
- Authority
- JP
- Japan
- Prior art keywords
- ray
- subject
- diagnostic parameters
- tomographic image
- diagnostic
- 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.)
- Expired - Fee Related
Links
- 238000003491 array Methods 0.000 claims description 14
- 230000037182 bone density Effects 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 description 22
- 230000007246 mechanism Effects 0.000 description 22
- 238000000034 method Methods 0.000 description 15
- 238000006073 displacement reaction Methods 0.000 description 11
- 241001465754 Metazoa Species 0.000 description 10
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 241000699670 Mus sp. Species 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 241000700198 Cavia Species 0.000 description 2
- 241000699800 Cricetinae Species 0.000 description 2
- 241000699666 Mus <mouse, genus> Species 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 210000000577 adipose tissue Anatomy 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013170 computed tomography imaging Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000001596 intra-abdominal fat Anatomy 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/508—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for non-human patients
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- High Energy & Nuclear Physics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Dentistry (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
Claims (5)
- 被検体を透過するX線ビームを発生するX線発生部と、
複数のX線センサ列によって形成される格子状配列の複数のX線センサによって前記X線ビームを検出するX線検出部と、
前記各X線センサ列ごとに得られる前記被検体の断層データを解析する解析部と、
を有し、
前記解析部は、段階的に枚数を増加させつつ得られる断層データに基づいて、各段階ごとに被検体の診断パラメータを算出し、各段階において算出された診断パラメータが所定の収束条件を満たすまで、複数の段階に亘って診断パラメータの算出を繰り返す、
ことを特徴とするX線CT装置。 - 請求項1に記載のX線CT装置において、
前記所定の収束条件は、段階的に算出される複数の診断パラメータの変化率によって定義される、
ことを特徴とするX線CT装置。 - 請求項1に記載のX線CT装置において、
前記所定の収束条件は、段階的に算出される複数の診断パラメータの変動係数によって定義される、
ことを特徴とするX線CT装置。 - 請求項1から3のいずれか1項に記載のX線CT装置において、
前記各診断パラメータは、被検体の骨密度である、
ことを特徴とするX線CT装置。 - 請求項1に記載のX線CT装置において、
前記各診断パラメータは、被検体の脂肪量であり、
前記所定の収束条件は、複数の断層データに対応した複数の脂肪量に関する平均値に基づいて定義される、
ことを特徴とするX線CT装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005293792A JP4708147B6 (ja) | 2005-10-06 | X線ct装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005293792A JP4708147B6 (ja) | 2005-10-06 | X線ct装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2007101442A JP2007101442A (ja) | 2007-04-19 |
JP4708147B2 true JP4708147B2 (ja) | 2011-06-22 |
JP4708147B6 JP4708147B6 (ja) | 2014-03-26 |
Family
ID=
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1014908A (ja) * | 1996-07-09 | 1998-01-20 | Toshiba Corp | X線ct装置並びに画像表示方法及びその装置 |
JPH10127621A (ja) * | 1996-10-31 | 1998-05-19 | Toshiba Corp | X線コンピュータ断層撮影装置 |
JP2001029343A (ja) * | 1999-07-19 | 2001-02-06 | Yuji Matsuzawa | 体脂肪計測装置 |
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1014908A (ja) * | 1996-07-09 | 1998-01-20 | Toshiba Corp | X線ct装置並びに画像表示方法及びその装置 |
JPH10127621A (ja) * | 1996-10-31 | 1998-05-19 | Toshiba Corp | X線コンピュータ断層撮影装置 |
JP2001029343A (ja) * | 1999-07-19 | 2001-02-06 | Yuji Matsuzawa | 体脂肪計測装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2007101442A (ja) | 2007-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR102424145B1 (ko) | 시공간적으로 오버랩하는 x선들로부터 3d 영상을 재구성하는 방법과 장치 | |
CN101489486B (zh) | 基于散射辐射分数的x-射线探测器增益校准 | |
US7526061B2 (en) | Computerized tomography device using X rays and image processing method | |
JP5588859B2 (ja) | X線ctスキャンシミュレータ及びx線ct装置 | |
JP2009534079A (ja) | 複数の部分的な走査軌道を有するコーンビーム・コンピュータ断層撮影 | |
JP2017522125A (ja) | X線イメージング装置用のグレーティング装置 | |
JP2019063499A5 (ja) | ||
US7961839B2 (en) | Advanced convergence for multiple iterative algorithm | |
WO2007067529A2 (en) | Apparatus and method for providing a near-parallel projection from helical scan data | |
JP4287265B2 (ja) | X線ct装置 | |
JP2012040284A (ja) | X線ct装置 | |
JP4708147B2 (ja) | X線ct装置 | |
JP4708147B6 (ja) | X線ct装置 | |
JP6711619B2 (ja) | 放射線撮影装置、放射線撮影方法、ct装置及びプログラム | |
JP4652935B2 (ja) | X線ct装置及び画像処理方法 | |
JP2008519634A (ja) | エネルギー分解コンピュータトモグラフィ | |
JP2007222599A (ja) | X線ct装置、コンピュータプログラム及びファントム保持具 | |
JP2008519975A (ja) | エネルギー分解コンピュータ断層撮影 | |
JP2005192656A (ja) | X線ct装置 | |
JP2010022708A (ja) | X線ct装置 | |
WO2007067671A2 (en) | Apparatus and method for providing an orthographic projection from helical scan data | |
JP2009500136A (ja) | X線又は赤外線による撮影方法及び撮影装置 | |
JP4504287B2 (ja) | X線ct装置及び画像処理方法 | |
JP4567118B2 (ja) | Ct装置を用いて検査対象物の螺旋走査により得られた測定値から像を再構成するための方法およびこの方法を実施するためのct装置 | |
JP5060993B2 (ja) | X線ct装置およびプログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070627 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20071001 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20071108 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20091221 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100126 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100325 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100608 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20100726 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20101026 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101215 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110308 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110316 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
LAPS | Cancellation because of no payment of annual fees |