JP2015231515A - 動き検出部を有する磁気共鳴装置と磁気共鳴検査中に患者の動きを検出する方法 - Google Patents
動き検出部を有する磁気共鳴装置と磁気共鳴検査中に患者の動きを検出する方法 Download PDFInfo
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Abstract
Description
本発明は、磁気共鳴検査中に患者の動きを検出するための特に簡易でコスト削減可能な手段を提供することを目的とする。この目的は、独立請求項に記載の特徴によって実現される。従属項には、好適な実施形態が記載されている。
−レーダー部によって少なくとも1つのレーダー信号を生成する、
−RFアンテナによって生成された少なくとも1つのレーダー信号を送信する、
−前記RFアンテナによって反射された少なくとも1つのレーダー信号を取得する、
−前記患者の動きを検出するために、前記反射された少なくとも1つのレーダー信号を評価する。
Claims (17)
- 磁気共鳴装置であって、
RFアンテナ(24)、少なくとも1つのRF線(25、102)および少なくとも1つのRF注入点(26、103)を有するRF部(19、101)であって、RF信号が前記少なくとも1つのRF線(25、102)によって前記RFアンテナ(24)へと伝送され、前記少なくとも1つのRF注入点(26、103)において前記RFアンテナ(24)へと注入されるRF部(19、101)、
前記RFアンテナ(24)によって少なくとも部分的に囲まれている患者収容領域(14)、および
前記患者収容領域(14)内に配置されうる患者(15)の動きを検出する動き検出部(27、100)
を備え、
前記少なくとも1つのRF線(25、102)は、少なくとも1つの注入素子(28、104)を有し、前記少なくとも1つの注入素子(28、104)によって、前記動き検出部(27、100)の少なくとも1つの動き検出信号が前記RF線(25、102)に結合される、
ことを特徴とする磁気共鳴装置。 - 前記動き検出部(27、100)はレーダー部(29)を有し、前記患者(15)の動きは、該レーダー部(29)の少なくとも1つのレーダー信号によって検出される、
ことを特徴とする請求項1に記載の磁気共鳴装置。 - 前記患者(15)の動きを検出する前記少なくとも1つのレーダー信号は、前記RFアンテナ(24)によって放射される、
ことを特徴とする請求項2に記載の磁気共鳴装置。 - 少なくとも1つの反射されたレーダー信号は、前記RFアンテナ(24)によって取得され、該反射されたレーダー信号は、前記患者収容領域(14)内に導入される検査対象に反射する、
ことを特徴とする請求項2と3のいずれか1つに記載の磁気共鳴装置。 - 前記レーダー信号は少なくとも3GHzの周波数を有する、
ことを特徴とする請求項2から請求項4のいずれか1つに記載の磁気共鳴装置。 - 前記レーダー信号は30GHzの最大周波数を有する、
ことを特徴とする請求項2から請求項5のいずれか1つに記載の磁気共鳴装置。 - 前記RF部(101)は2つ以上のRF線(102)と2つ以上のRF注入点(103)を有し、RF信号は、前記2つ以上のRF線(102)によって、前記2つ以上のRF注入点(103)の1つへと伝送され、前記2つ以上のRF線(102)のそれぞれは、レーダー信号を前記RFアンテナ(24)に注入する注入素子(104)を有する、
ことを特徴とする請求項2から請求項6のいずれか1つに記載の磁気共鳴装置。 - 前記動き検出部(100)は切り替え部(105)を有し、前記2つ以上のレーダー信号は、該切り替え部(105)によって前記RFアンテナ(24)に注入される、
ことを特徴とする請求項7に記載の磁気共鳴装置。 - 前記2つ以上のレーダー信号は、1つのRF注入点(26)と1つの注入素子(28)を含む1つのRF線(25)とによって、前記RFアンテナ(24)へ注入され、前記2つ以上のレーダー信号はレーダー周波数が異なる、
ことを特徴とする請求項2から請求項8のいずれか1つに記載の磁気共鳴装置。 - 前記動き検出部(27、100)は、取得される異なるレーダー信号を互いに組み合わせる評価部(33)を有する、
ことを特徴とする請求項7から請求項9のいずれか1つに記載の磁気共鳴装置。 - 前記注入素子(28、104)は方向性結合器を含む、
ことを特徴とする請求項1から請求項10のいずれか1つに記載の磁気共鳴装置。 - 前記動き検出部(27、100)はアダプタ部(31)を有する、
ことを特徴とする請求項11に記載の磁気共鳴装置。 - 前記患者(15)の動きは、前記患者(15)の心臓の動きおよび/または呼吸運動を含む、
ことを特徴とする請求項1から請求項12のいずれか1つに記載の磁気共鳴装置。 - 磁気共鳴検査中に、磁気共鳴装置(10)によって患者(15)の動き、特に心臓の動きおよび/または呼吸運動を検出する方法であって、該磁気共鳴装置(10)は、RFアンテナ(24)とレーダー部(29)を含む動き検出部(27、100)とを有し、
該方法は、
レーダー部(29)によって少なくとも1つのレーダー信号を生成することと、
前記RFアンテナ(24)によって前記生成された少なくとも1つのレーダー信号を送信することと、、
前記RFアンテナ(24)によって反射された少なくとも1つのレーダー信号を取得することと、
前記患者(15)の動きを検出するために、前記反射された少なくとも1つのレーダー信号を評価することと、
を含む、
ことを特徴とする方法。 - 前記生成された少なくとも1つのレーダー信号は、少なくとも1つの注入素子(28、104)によって少なくとも1つのRF線(25、102)に結合され、RF信号が前記少なくとも1つのRF線(25、102)によって前記RFアンテナ(24)に伝送される、
ことを特徴とする請求項14に記載の方法。 - 前記取得された少なくとも1つのレーダー信号は、少なくとも1つの注入素子(28、104)によってRF線(25、104)から結合され、RF信号は、前記少なくとも1つのRF線(25、102)によって前記RFアンテナ(24)へ伝送される、
ことを特徴とする請求項14と請求項15のいずれか1つに記載の方法。 - レーダー周波数および/または前記RFアンテナ(24)へのRF注入点(26、103)が互いに異なるレーダー信号が取得され、該異なるレーダー信号は、前記患者(15)の動きを判断するために互いに組み合わせられる、
ことを特徴とする請求項14から請求項16までのいずれか1つに記載の方法。
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DE102014208537.3A DE102014208537A1 (de) | 2014-05-07 | 2014-05-07 | Magnetresonanzvorrichtung mit einer Bewegungserfassungseinheit sowie ein Verfahren zu einer Erfassung einer Bewegung eines Patienten während einer Magnetresonanzuntersuchung |
DE102014208537.3 | 2014-05-07 |
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JP2015231515A5 JP2015231515A5 (ja) | 2018-03-15 |
JP6518502B2 JP6518502B2 (ja) | 2019-05-22 |
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EP (1) | EP2942008B1 (ja) |
JP (1) | JP6518502B2 (ja) |
KR (1) | KR20150127539A (ja) |
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JP2021519917A (ja) * | 2018-10-08 | 2021-08-12 | シーメンス メディカル ソリューションズ ユーエスエー インコーポレイテッドSiemens Medical Solutions USA,Inc. | 内臓の動きを検出するためのレーダーシステムの小型のアンテナ装置 |
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US10722151B2 (en) | 2020-07-28 |
CN105078458B (zh) | 2020-01-17 |
US20150320342A1 (en) | 2015-11-12 |
DE102014208537A1 (de) | 2015-11-12 |
EP2942008B1 (de) | 2019-02-27 |
JP6518502B2 (ja) | 2019-05-22 |
KR20150127539A (ko) | 2015-11-17 |
EP2942008A1 (de) | 2015-11-11 |
CN105078458A (zh) | 2015-11-25 |
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