JP2018068775A5 - - Google Patents
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- JP2018068775A5 JP2018068775A5 JP2016213813A JP2016213813A JP2018068775A5 JP 2018068775 A5 JP2018068775 A5 JP 2018068775A5 JP 2016213813 A JP2016213813 A JP 2016213813A JP 2016213813 A JP2016213813 A JP 2016213813A JP 2018068775 A5 JP2018068775 A5 JP 2018068775A5
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- cooling
- magnetic resonance
- inspection
- cooling device
- resonance imaging
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- 238000001816 cooling Methods 0.000 claims description 34
- 238000007689 inspection Methods 0.000 claims description 12
- 238000003384 imaging method Methods 0.000 claims description 10
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 10
Description
実施形態の磁気共鳴イメージング装置１は、冷却容器２２と、冷却装置３と、撮像部と、制御部とを備える。冷却容器２２は、超伝導コイル２１を収容する。冷却装置３は、冷却容器２２の内部を冷却する。撮像部は、被検体Ｓに傾斜磁場および高周波磁場を印加し、発生したＭＲ信号を収集してＭＲ画像を生成する。制御部は、撮像部による被検体Ｓの撮像を行う検査の時間以外の時間において、冷却装置３による冷却の停止と稼働を制御する。また、制御部は、第１の検査が終了するタイミングと第１の検査から所定時間後に開始される第２の検査が開始するタイミングとに応じて、冷却装置３による冷却の停止と稼働のそれぞれの期間を設定する。 The magnetic resonance imaging apparatus 1 of the embodiment includes a cooling container 22, a cooling apparatus 3, an imaging unit, and a control unit. The cooling container 22 accommodates the superconducting coil 21. The cooling device 3 cools the inside of the cooling container 22. The imaging unit applies a gradient magnetic field and a high-frequency magnetic field to the subject S, collects the generated MR signals, and generates an MR image. The control unit controls the stop and operation of the cooling by the cooling device 3 at a time other than the examination time for imaging the subject S by the imaging unit. Further, the control unit respectively stops cooling and operates by the cooling device 3 according to the timing at which the first inspection ends and the timing at which the second inspection started after a predetermined time from the first inspection starts. Set the period .
Claims (9)
前記冷却容器の内部を冷却する冷却装置と、
被検体に傾斜磁場および高周波磁場を印加し、発生したＭＲ（Magnetic Resonance）信号を収集してＭＲ画像を生成する撮像部と、
前記撮像部による前記被検体の撮像を行う検査の時間以外の時間において、前記冷却装置による冷却の停止と稼働を制御する制御部と、
を備え、
前記制御部は、第１の検査が終了するタイミングと前記第１の検査から所定時間後に開始される第２の検査が開始するタイミングとに応じて、前記冷却装置による冷却の停止と稼働のそれぞれの期間を設定する、
磁気共鳴イメージング装置。 A cooling vessel containing a superconducting coil;
A cooling device for cooling the inside of the cooling container;
An imaging unit that applies a gradient magnetic field and a high-frequency magnetic field to a subject, collects a generated MR (Magnetic Resonance) signal, and generates an MR image;
A control unit that controls the stop and operation of cooling by the cooling device at a time other than the examination time for imaging the subject by the imaging unit;
With
The control unit is configured to stop cooling by the cooling device and operate according to a timing at which the first inspection ends and a timing at which a second inspection started after a predetermined time from the first inspection starts. Set the duration of
Magnetic resonance imaging device.
請求項１に記載の磁気共鳴イメージング装置。 The magnetic resonance imaging apparatus according to claim 1.
前記第２の検査は、前記第１の検査が行われる日とは異なる日に行われる最初の検査である、 The second inspection is an initial inspection performed on a different day from the day on which the first inspection is performed.
請求項１に記載の磁気共鳴イメージング装置。 The magnetic resonance imaging apparatus according to claim 1.
前記制御部は、前記第１の情報に基づいて前記冷却装置による冷却の停止と稼働を制御した場合に、前記第２の検査が開始される時刻における画質に関連するパラメータが撮像に適していないと判定すると、前記冷却装置による冷却の停止または稼働の期間を変更する、
請求項１に記載の磁気共鳴イメージング装置。 A storage unit that stores first information including a period of stoppage or operation of cooling by the cooling device;
When the control unit controls stop and operation of cooling by the cooling device based on the first information, a parameter related to image quality at the time when the second inspection is started is not suitable for imaging. If it is determined that the cooling stop or operation period by the cooling device is changed,
The magnetic resonance imaging apparatus according to claim 1.
請求項４に記載の磁気共鳴イメージング装置。 The control unit controls a period of cooling stop or operation by the cooling device according to a pressure inside the cooling container,
The magnetic resonance imaging apparatus according to claim 4 .
請求項４に記載の磁気共鳴イメージング装置。 The control unit changes the stoppage and operation cycle of the cooling by the cooling device,
The magnetic resonance imaging apparatus according to claim 4 .
請求項４に記載の磁気共鳴イメージング装置。 The control unit controls a period of operation of cooling by the cooling device according to a degree of wear of components included in the cooling device.
The magnetic resonance imaging apparatus according to claim 4 .
前記センサーにより計測されるデータと前記ＭＲ画像の画質に関連するパラメータとを
関連付けるテーブルを記憶する記憶部と、
をさらに備え、
前記制御部は、前記センサーにより計測されたデータと、前記テーブルとを用いて、前記第２の検査が開始される時刻において、前記ＭＲ画像の画質に関連するパラメータが撮像に適した値になるかを判定する、
請求項２に記載の磁気共鳴イメージング装置。 A sensor for measuring the state of the cooling container;
A storage unit for storing a table for associating data measured by the sensor with parameters related to the image quality of the MR image;
Further comprising
The control unit uses the data measured by the sensor and the table, and the parameter related to the image quality of the MR image becomes a value suitable for imaging at the time when the second examination is started. To determine,
The magnetic resonance imaging apparatus according to claim 2 .
請求項２に記載の磁気共鳴イメージング装置。 The parameter related to the image quality of the MR image is an eddy current value.
The magnetic resonance imaging apparatus according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016213813A JP6849393B2 (en) | 2016-10-31 | 2016-10-31 | Magnetic resonance imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016213813A JP6849393B2 (en) | 2016-10-31 | 2016-10-31 | Magnetic resonance imaging device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018068775A JP2018068775A (en) | 2018-05-10 |
| JP2018068775A5 true JP2018068775A5 (en) | 2019-10-10 |
| JP6849393B2 JP6849393B2 (en) | 2021-03-24 |
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ID=62113130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016213813A Active JP6849393B2 (en) | 2016-10-31 | 2016-10-31 | Magnetic resonance imaging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6849393B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6634464B2 (en) | 2018-03-30 | 2020-01-22 | 日本航空電子工業株式会社 | connector |
| JP7048413B2 (en) * | 2018-05-23 | 2022-04-05 | 株式会社東芝 | How to operate the superconducting magnet device and the superconducting magnet device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07101758B2 (en) * | 1988-03-18 | 1995-11-01 | 株式会社日立製作所 | Cryostat with refrigerator |
| JPH01242052A (en) * | 1988-03-24 | 1989-09-27 | Toshiba Corp | Magnetic resonance imaging apparatus and operation thereof |
| US5724820A (en) * | 1996-02-09 | 1998-03-10 | Massachusetts Institute Of Technology | Permanent magnet system based on high-temperature superconductors with recooling and recharging capabilities |
| JPH1199135A (en) * | 1997-09-29 | 1999-04-13 | Ge Yokogawa Medical Systems Ltd | Cryogenic cooler operating method, magnetism generating device, and magnetic resonance imaging device |
| JP4369774B2 (en) * | 2004-02-24 | 2009-11-25 | 株式会社日立メディコ | Magnetic resonance imaging device using superconducting magnet device |
| JP6316560B2 (en) * | 2013-09-13 | 2018-04-25 | キヤノンメディカルシステムズ株式会社 | Magnetic resonance imaging apparatus and refrigerator monitoring apparatus |
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