JPH0122654Y2 - - Google Patents
Info
- Publication number
- JPH0122654Y2 JPH0122654Y2 JP1983078185U JP7818583U JPH0122654Y2 JP H0122654 Y2 JPH0122654 Y2 JP H0122654Y2 JP 1983078185 U JP1983078185 U JP 1983078185U JP 7818583 U JP7818583 U JP 7818583U JP H0122654 Y2 JPH0122654 Y2 JP H0122654Y2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cable
- objective lens
- human body
- television camera
- 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
Links
- 239000013307 optical fiber Substances 0.000 claims description 10
- 238000005481 NMR spectroscopy Methods 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 5
- 238000003384 imaging method Methods 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 claims description 3
- 239000000615 nonconductor Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008921 facial expression Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Magnetic Resonance Imaging Apparatus (AREA)
- Closed-Circuit Television Systems (AREA)
Description
【考案の詳細な説明】
この考案は、核磁気共鳴（NMR）を用いて人
体の断層画像を形成、撮影する装置、例えば
NMR―CT装置に関するものであり、さらに詳
しくは、装置の性能を損うことなく撮影中の患者
を観察できる患者監視装置を有する核磁気共鳴を
利用した画像形成装置に関する。[Detailed description of the invention] This invention is a device that uses nuclear magnetic resonance (NMR) to form and take tomographic images of the human body, such as
The present invention relates to an NMR-CT apparatus, and more specifically, to an image forming apparatus using nuclear magnetic resonance that has a patient monitoring device that allows observation of a patient during imaging without impairing the performance of the apparatus.
従来、人体断層画像形成装置においては、撮影
中の患者を監視するため、テレビカメラを装置内
へ設置する試みがなされている。しかしながら、
NMRを利用したNMR―CTのような装置におい
ては、均一な磁場のもとに測定を実施する必要が
あるため、磁性体を有するテレビカメラを装置の
測定点近傍に設置することができなかつた。一
方、測定点近傍の磁場に影響を与えないようにテ
レビカメラを遠方に配置すると、被写体までの間
の構造物により視野が制約を受け、患者の観察が
充分できないという欠点が生ずる。また、NMR
―CTのような装置の撮影プロセスにはラジオ周
波数帯に近い電磁波の授受が関与するため、装置
外の各種電磁波を測定機近傍に誘導しない工夫が
必要であるが、テレビカメラを測定部近傍に設置
した場合は、モニターテレビとの間のケーブルに
外電磁波の誘導によるノイズが入り、その結果と
して正確な測定ができなくなるという欠点があ
る。 Conventionally, in human body tomographic image forming apparatuses, attempts have been made to install a television camera inside the apparatus in order to monitor a patient during imaging. however,
In devices such as NMR-CT that use NMR, it is necessary to perform measurements under a uniform magnetic field, so it is not possible to install a television camera containing a magnetic material near the measurement point of the device. . On the other hand, if the television camera is placed far away so as not to affect the magnetic field near the measurement point, the field of view will be restricted by structures up to the subject, resulting in the disadvantage that the patient cannot be sufficiently observed. Also, NMR
-The imaging process of devices such as CT involves the transmission and reception of electromagnetic waves close to the radio frequency band, so it is necessary to take measures to prevent various electromagnetic waves from outside the device from entering the vicinity of the measuring machine. If installed, the disadvantage is that noise due to induction of external electromagnetic waves enters the cable between the monitor and the TV, making accurate measurements impossible.
この考案は上記の欠点を克服したものである。
すなわちこの考案は、人体を収容する筒内に設置
された対物レンズと、それに一端が開口された非
磁性体でかつ電磁気的不導体の光フアイバーケー
ブルと、その光フアイバーケーブルの他端に接続
されたテレビカメラおよびモニターテレビからな
る患者監視装置を有する核磁気共鳴を利用した画
像形成装置である。 This invention overcomes the above drawbacks.
In other words, this invention consists of an objective lens installed in a cylinder housing a human body, an optical fiber cable made of a non-magnetic material and an electromagnetic non-conductor with one end open to the objective lens, and an optical fiber cable connected to the other end of the optical fiber cable. This is an image forming device that utilizes nuclear magnetic resonance and has a patient monitoring device consisting of a television camera and a monitor television.
以下、図面によつて説明する。第１図はNMR
―CT装置の外観を示す、一部を切り欠いた斜視
図である。第２図はこの考案の装置の正面図の左
側半分の一部を切り欠いた図であり、第３図は人
体を収容した筒部分の断面をモデル的に示したも
のである。１はマグネツト、２は人体を収容する
筒である。筒２内に設置された対物レンズには、
取付具３により筒内に設置された光フアイバーケ
ーブル４の一端が開口されている。光フアイバー
ケーブル４の他端はマグネツト１の外に引き出さ
れ、さらにNMR―CT装置のシールドルーム６
の外まで引き出されて、テレビカメラ５に接続さ
れる。筒内に収容された患者の様子は、光フアイ
バーケーブルにより伝送され、テレビカメラによ
り撮影されて、テレビカメラに接続されたモニタ
ーテレビにより観察が可能となる対物レンズは、
非磁性体のものが用いられる。対物レンズの筒内
への取付け装置は、筒内へ収容される患者の表情
や様子がとらえられる位置であれば任意でよく、
また、光フアイバーケーブルも、非磁性体で電磁
気的不導体のものであれば、その形状等は任意の
ものが使用できる。 This will be explained below with reference to the drawings. Figure 1 shows NMR
- It is a partially cutaway perspective view showing the appearance of the CT device. FIG. 2 is a partially cutaway left half of the front view of the device of this invention, and FIG. 3 is a model showing a cross section of the cylindrical portion that accommodates a human body. 1 is a magnet, and 2 is a cylinder that accommodates a human body. The objective lens installed inside the tube 2 has a
One end of an optical fiber cable 4 installed in the cylinder is opened by the fitting 3. The other end of the optical fiber cable 4 is pulled out of the magnet 1 and is further inserted into the shield room 6 of the NMR-CT system.
It is pulled out to the outside and connected to the television camera 5. The condition of the patient accommodated in the tube is transmitted through an optical fiber cable, and the image is photographed by a television camera.The objective lens allows observation on a monitor connected to the television camera.
A non-magnetic material is used. The attachment device for the objective lens in the cylinder may be any position as long as it can capture the facial expressions and state of the patient accommodated in the cylinder.
Further, as long as the optical fiber cable is made of a non-magnetic material and an electromagnetic non-conductor, any shape etc. can be used.
以上のように、この考案によれば、テレビカメ
ラを使用して筒内の患者を観察、監視できるうえ
に、均一な磁場のもとに、核磁気共鳴を利用して
人体の断層画像を撮影することが可能な装置が提
供される。 As described above, according to this invention, it is possible to observe and monitor the patient inside the cylinder using a television camera, and also to take tomographic images of the human body using nuclear magnetic resonance under a uniform magnetic field. A device is provided that allows for this.
第１図はNMR―CT装置の一部を切り欠いた
斜視図である。第２図はこの考案の装置を一部切
り欠いた正面図であり、第３図はこの考案の装置
に人体を収容した場合をモデル的に示した、筒部
分の断面図である。
２……筒、４……光フアイバーケーブル、５…
…テレビカメラ。
FIG. 1 is a partially cutaway perspective view of the NMR-CT apparatus. FIG. 2 is a partially cutaway front view of the device of this invention, and FIG. 3 is a cross-sectional view of the cylindrical portion, showing a model of the case where a human body is accommodated in the device of this invention. 2...Tube, 4...Optical fiber cable, 5...
...TV camera.
Claims (1)
と、それに一端が開口された非磁性体でかつ電磁
気的不導体の光フアイバーケーブルと、その光フ
アイバーケーブルの他端に接続されたテレビカメ
ラおよびモニターテレビからなる患者監視装置を
有する核磁気共鳴を利用した画像形成装置。 An objective lens installed in a cylinder housing a human body, an optical fiber cable made of non-magnetic material and electromagnetic non-conductor with one end open to the objective lens, and a television camera and monitor connected to the other end of the optical fiber cable. An imaging device using nuclear magnetic resonance that includes a patient monitoring device consisting of a television.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7818583U JPS59184808U (en) | 1983-05-26 | 1983-05-26 | Image forming device using nuclear magnetic resonance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7818583U JPS59184808U (en) | 1983-05-26 | 1983-05-26 | Image forming device using nuclear magnetic resonance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59184808U JPS59184808U (en) | 1984-12-08 |
| JPH0122654Y2 true JPH0122654Y2 (en) | 1989-07-07 |
Family
ID=30208187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7818583U Granted JPS59184808U (en) | 1983-05-26 | 1983-05-26 | Image forming device using nuclear magnetic resonance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59184808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002102203A (en) * | 2000-09-27 | 2002-04-09 | Ge Medical Systems Global Technology Co Llc | Magnetic resonance video system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61155846A (en) * | 1984-12-28 | 1986-07-15 | Toshiba Corp | Magnetic resonance imaging device |
| JPS61293442A (en) * | 1985-06-21 | 1986-12-24 | 株式会社東芝 | Magnetic resonance imaging apparatus |
| JP2619437B2 (en) * | 1987-12-02 | 1997-06-11 | 株式会社日立製作所 | Inspection equipment using nuclear magnetic resonance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233110U (en) * | 1975-09-01 | 1977-03-08 | ||
| JPS5612134A (en) * | 1979-04-20 | 1981-02-06 | Siemens Ag | Circuit device for reducing distortion in amplitude for superheterodyne receiver |
| JPS5630603A (en) * | 1979-08-22 | 1981-03-27 | Toshiba Corp | Position detector |
-
1983
- 1983-05-26 JP JP7818583U patent/JPS59184808U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233110U (en) * | 1975-09-01 | 1977-03-08 | ||
| JPS5612134A (en) * | 1979-04-20 | 1981-02-06 | Siemens Ag | Circuit device for reducing distortion in amplitude for superheterodyne receiver |
| JPS5630603A (en) * | 1979-08-22 | 1981-03-27 | Toshiba Corp | Position detector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002102203A (en) * | 2000-09-27 | 2002-04-09 | Ge Medical Systems Global Technology Co Llc | Magnetic resonance video system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59184808U (en) | 1984-12-08 |
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