JP6400266B2 - PET(PositronEmissionTomography)スキャナ - Google Patents
PET(PositronEmissionTomography)スキャナ Download PDFInfo
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- JP6400266B2 JP6400266B2 JP2012097130A JP2012097130A JP6400266B2 JP 6400266 B2 JP6400266 B2 JP 6400266B2 JP 2012097130 A JP2012097130 A JP 2012097130A JP 2012097130 A JP2012097130 A JP 2012097130A JP 6400266 B2 JP6400266 B2 JP 6400266B2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
- G01T1/2914—Measurement of spatial distribution of radiation
- G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
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- 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
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/037—Emission tomography
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Description
次に、実施形態に係る医用画像診断装置の一例として、PET/CTシステムを説明する。図11、図12B及び12Cは、ツーハーフスキャナが組み込まれたPET/CTシステムの実施形態を示す図である。上述したツーハーフ形状(two-half geometries)は、いくつかの方法によって既存のCTシステムに組み込むことができる。ある実施形態においては、図11に示すように、より小型、可動、半導体検出器を被検体パレットの上部に設け、既存のCTシステムの増設機器として一体型PET/CT装置を形成できる。上で検討したように、2台の上部検出器は可動であり、例えば、神経学的スキャン又は心血管スキャンの用途で、被検体の周りの、画像化される被検体の対象部位(「関心領域(region of interest)」とも称する)に依存する位置に配置できる。
1401 PET検出器装置
1402 パレット及びパレット位置決め部
1403 PET検出器位置決め部
1404 データ取得システム
1405 データ処理部
1406 CT装置
1407 コントローラ
1408 操作者インタフェース部
1409 表示部
1410 記憶部
Claims (12)
- 被検体を囲む円周に沿って設けられる第1検出器であって、該円周の中心に対して180度を超え360度未満の角度である第1角度の範囲に配置される第1検出器と、
前記円周とは異なる曲率半径で設けられ、前記第1角度に対向し、前記円周の中心に対して180度未満の角度である第2角度の範囲に配置される第2検出器と
を備え、
前記第1検出器と前記第2検出器とは異なる種類の検出器であり、
前記第1検出器のエネルギーウィンドウと前記第2検出器のエネルギーウィンドウとは異なる、PET(Positron Emission Tomography)スキャナ。 - 前記第2検出器は、前記第2角度の範囲として30度以上の範囲に配置される、請求項1に記載のPETスキャナ。
- 前記第1検出器が配置される前記第1角度の範囲と、前記第2検出器が配置される前記第2角度の範囲との合計は、360度未満である、請求項1に記載のPETスキャナ。
- 前記第1検出器が配置される前記第1角度の範囲と、前記第2検出器が配置される前記第2角度の範囲との合計は、360度以上である、請求項1に記載のPETスキャナ。
- 前記第2検出器は、前記第1検出器が設けられる円周に比較して、前記中心との距離が近い位置に配置される、請求項1に記載のPETスキャナ。
- 前記第2検出器は、前記第1検出器が設けられる円周と前記中心との距離に比較して、10%以上近い位置に配置される、請求項5に記載のPETスキャナ。
- 前記第1検出器は、複数の第1検出器素子を含み、
前記第2検出器は、複数の第2検出器素子を含み、
前記第2検出器素子のそれぞれは、前記第1検出器素子に比較して小さい検出面を有する、請求項1に記載のPETスキャナ。 - 前記第1検出器に対向する第2角度の範囲に配置される第3検出器を更に備える、請求項1に記載のPETスキャナ。
- 前記第2検出器は、前記被検体が載置される寝台の下に接して配置される、請求項1に記載のPETスキャナ。
- 前記第2検出器は、前記被検体が載置される寝台の上方に配置される、請求項1に記載のPETスキャナ。
- 前記第2検出器は、前記円周の接線方向及び前記円周の半径方向のうち少なくとも一方向に可動である、請求項1に記載のPETスキャナ。
- 前記第1検出器及び前記第2検出器は、被検体を囲む円周方向に回転する、請求項1に記載のPETスキャナ。
Applications Claiming Priority (2)
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US13/091,761 US9207333B2 (en) | 2011-04-21 | 2011-04-21 | Geometry for PET imaging |
US13/091,761 | 2011-04-21 |
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JP2012225929A JP2012225929A (ja) | 2012-11-15 |
JP6400266B2 true JP6400266B2 (ja) | 2018-10-03 |
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JP2012097130A Active JP6400266B2 (ja) | 2011-04-21 | 2012-04-20 | PET(PositronEmissionTomography)スキャナ |
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---|---|
US (1) | US9207333B2 (ja) |
JP (1) | JP6400266B2 (ja) |
CN (1) | CN103403579B (ja) |
WO (1) | WO2012144633A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US9140805B2 (en) * | 2012-10-22 | 2015-09-22 | Kabushiki Kaisha Toshiba | Apparatus and method for improving uniformity of performance in positron emission tomography |
WO2014118823A1 (ja) * | 2013-01-31 | 2014-08-07 | 株式会社島津製作所 | 核医学診断装置 |
CN103961127B (zh) * | 2013-02-05 | 2017-04-12 | 苏州瑞派宁科技有限公司 | 应用适应性的pet探测结构及系统 |
US11000240B2 (en) * | 2015-03-16 | 2021-05-11 | Universidade De Aveiro | System and method of positron emission tomography with two axes of rotation |
CN107080551B (zh) * | 2017-05-25 | 2023-08-22 | 苏州瑞派宁科技有限公司 | 一种三维异质pet系统 |
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JPH1123718A (ja) * | 1997-06-30 | 1999-01-29 | Shimadzu Corp | 多検出器型シングルフォトンect装置 |
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JP2007163373A (ja) | 2005-12-15 | 2007-06-28 | Shimadzu Corp | 核医学診断装置 |
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US8698087B2 (en) * | 2008-11-03 | 2014-04-15 | The Trustees Of The University Of Pennsylvania | Limited angle tomography with time-of-flight PET |
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- 2011-04-21 US US13/091,761 patent/US9207333B2/en active Active
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2012
- 2012-04-20 JP JP2012097130A patent/JP6400266B2/ja active Active
- 2012-04-20 CN CN201280009042.0A patent/CN103403579B/zh active Active
- 2012-04-20 WO PCT/JP2012/060787 patent/WO2012144633A1/ja active Application Filing
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Publication number | Publication date |
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WO2012144633A1 (ja) | 2012-10-26 |
JP2012225929A (ja) | 2012-11-15 |
US9207333B2 (en) | 2015-12-08 |
CN103403579A (zh) | 2013-11-20 |
CN103403579B (zh) | 2016-09-07 |
US20120267537A1 (en) | 2012-10-25 |
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