JP6139246B2 - Pet−mri装置 - Google Patents
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- JP6139246B2 JP6139246B2 JP2013091810A JP2013091810A JP6139246B2 JP 6139246 B2 JP6139246 B2 JP 6139246B2 JP 2013091810 A JP2013091810 A JP 2013091810A JP 2013091810 A JP2013091810 A JP 2013091810A JP 6139246 B2 JP6139246 B2 JP 6139246B2
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Description
まず、第1の実施形態について説明する。図1は、第1の実施形態に係るPET−MRI装置の構成を示す図である。図1に示すように、このPET−MRI装置100は、静磁場磁石1、寝台2、傾斜磁場コイル3、傾斜磁場コイル駆動回路4、送信用高周波コイル5、送信部6、受信用高周波コイル7、受信部8、MRデータ収集部9、PET検出器10a及び10b、信号線11、PETデータ収集部12、シーケンスコントローラ13、PET検出器用電源14、電源ケーブル15、計算機16、コンソール17、及びディスプレイ18を有する。
次に、第2の実施形態について説明する。図13は、第2の実施形態に係るPET−CT装置の構成を示す図である。図13に示すように、第2の実施形態に係るPET−CT装置200は、PET用架台装置41と、CT用架台装置42と、寝台43と、計算機44とを有する。
9 MRデータ収集部
12 PETデータ収集部
16 計算機
16d 画像生成部
Claims (11)
- ボアが形成された架台に収められ、静磁場を発生させる静磁場磁石と、
前記静磁場磁石の内周側に配置され、傾斜磁場を発生させる傾斜磁場コイルと、
前記傾斜磁場コイルの内周側に配置され、被検体に高周波磁場を印加する高周波コイルと、
前記傾斜磁場コイルの内周側に配置され、前記被検体から放出されるガンマ線を検出する、互いに略同一形状の第1のPET検出器及び第2のPET検出器と
を備え、
前記第1のPET検出器と前記第2のPET検出器とは、前記静磁場の磁場中心を間に挟んで前記ボアの軸方向に離間し、かつ、前記静磁場の磁場中心に対して、前記ボアの軸方向に互いに非対称な位置に設けられた状態でガンマ線を検出する、
PET−MRI装置。 - 前記高周波コイルを介して被検体の第1の領域からデータを収集する第1の収集部と、
前記第1のPET検出器及び前記第2のPET検出器を介して前記被検体の前記第1の領域とは異なる第2の領域からデータを収集する第2の収集部と、
前記第1の収集部によって収集されたデータから第1の診断画像を生成し、前記第2の収集部によって収集されたデータから第2の診断画像を生成する画像生成部と
をさらに備える、請求項1に記載のPET−MRI装置。 - 前記第1の収集部と前記第2の収集部とが同時にデータ収集を開始するように制御する収集制御部をさらに備える、
請求項2に記載のPET−MRI装置。 - 前記第1の収集部及び前記第2の収集部のうちの一方がデータ収集を開始した後に、所定の時間が経過してから前記第1の収集部及び前記第2の収集部のうちの他方がデータ収集を開始するように制御する収集制御部をさらに備える、
請求項2に記載のPET−MRI装置。 - 前記第1の収集部及び前記第2の収集部によるデータ収集が終了した後に、前記第1のPET検出器及び前記第2のPET検出器を移動させる検出器制御部をさらに備え、
前記第2の収集部は、前記第1のPET検出器及び前記第2のPET検出器が移動された後に、前記第1のPET検出器及び前記第2のPET検出器を介して前記第1の領域からデータを収集する、
請求項4に記載のPET−MRI装置。 - 前記第1の収集部及び前記第2の収集部によるデータ収集が終了した後に、前記第1のPET検出器及び前記第2のPET検出器を移動させる検出器制御部をさらに備え、
前記第2の収集部は、前記第1のPET検出器及び前記第2のPET検出器が移動された後に、前記第1のPET検出器及び前記第2のPET検出器を介して前記第1の領域及び前記第2の領域とは異なる第3の領域からデータを収集する、
請求項4に記載のPET−MRI装置。 - 前記第1の収集部及び前記第2の収集部によるデータ収集が終了した後に、前記被検体が載置される寝台を制御して前記被検体を移動する寝台制御部をさらに備え、
前記第2の収集部は、前記被検体が移動された後に、前記第1のPET検出器及び前記第2のPET検出器を介して前記第1の領域からデータを収集する、
請求項4に記載のPET−MRI装置。 - 前記第1の収集部及び前記第2の収集部によるデータ収集が終了した後に、前記被検体が載置される寝台を制御して前記被検体を移動する寝台制御部をさらに備え、
前記第2の収集部は、前記被検体が移動された後に、前記第1のPET検出器及び前記第2のPET検出器を介して前記第1の領域及び前記第2の領域とは異なる第3の領域からデータを収集する、
請求項4に記載のPET−MRI装置。 - 前記第1の収集部は、前記第1の領域から前記被検体の第1の反応に関するデータを収集し、
前記第2の収集部は、前記第2の領域から前記被検体の第1の反応とは異なる第2の反応に関するデータを収集する、
請求項2〜8のいずれか一つに記載のPET−MRI装置。 - 前記第1の領域と前記第2の領域とは、前記第1の領域の一部分と前記第2の領域の一部分とが重なる、
請求項2〜9のいずれか一つに記載のPET−MRI装置。 - 前記第1の領域と、前記第2の領域と、前記第1の領域からデータを収集するタイミングと、前記第2の領域からデータを収集するタイミングとを少なくとも含んだ撮像条件を操作者から受け付ける受付部と、
前記撮像条件にしたがって前記第1の収集部及び前記第2の収集部を制御する収集制御部とをさらに備える、
請求項2〜10のいずれか一つに記載のPET−MRI装置。
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JP (1) | JP6139246B2 (ja) |
CN (1) | CN103619246B (ja) |
WO (1) | WO2013161907A1 (ja) |
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US10539639B2 (en) | 2015-08-06 | 2020-01-21 | Synaptive Medical (Barbados) Inc. | Local active gradient shielding |
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