JPS63257537A - Magnetic resonace imaging apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention relates to magnetic resonance (MR)
res.

Regarding magnetic resonance imaging equipment, which uses signal processing to image information such as the spin density distribution and chemical shift of a specific atomic nucleus in a specific part of a subject (living body) using the The present invention relates to a magnetic resonance imaging device that can be realized.

(Prior Art) For example, as shown in FIG. 2, a magnetic resonance imaging apparatus for medical diagnosis has a main body 2.
Bed 3. It is constructed by installing a control console 41, a power supply device 9 (not shown), a cooling device (not shown), and the like. Then, the patient P placed on the top plate 3'a of the bed 3 is introduced into the patient introduction space 2a of the main body 2, and the operator 〇 operates the control console 4 to Static magnetic field and gradient magnetic field generated within 2.

A high-frequency magnetic field for excitation is applied to the subject P to cause a magnetic resonance phenomenon to occur in a specific atomic nucleus in a specific part of the subject P. Then, the magnetic resonance signals induced from the subject P are collected from the main body 2 and guided to the control console 4, where the information generated by signal processing is stored on a magnetic disk as clinical information in relation to the subject. The device 4a records on, for example, a magnetic floppy disk.

In addition, since the static magnetic field is several thousand Gauss or more and the magnetic resonance signal is weak, the high magnetic field does not affect others (devices and people wearing ferromagnetic materials), and external noise does not interfere with the magnetic resonance signal. In order to prevent image contamination from contaminating the main unit 2 and causing deterioration of image quality,
and bed 3 are installed in a shooting room 1C surrounded by a wall 1a with magnetic shielding and radio wave shielding, and a control console 4
is installed outside the original image room. As a result, the control console 4, which performs various signal processing, various controls, and magnetically stores data, is placed in a low magnetic field environment of several Gauss or less.

(Problems to be Solved by the Invention) As described above, in the conventional magnetic resonance imaging apparatus, if clinical data is destroyed, it will greatly impede the treatment of the patient (subject) after diagnosis. The control console, equipped with magnetic storage means, was placed far away from the main unit.

For this reason, I! Requires a lot of space. There was a problem.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a magnetic resonance imaging apparatus that can save space.

[Structure of the Invention] Problems to be Solved) The present invention has a structure in which the following measures are taken to solve the above problems and achieve the object. That is, the present invention provides a main body that is equipped with a static magnetic field generator, a gradient magnetic field generator, and an excitation high-frequency magnetic field generator and that forms a test subject introduction space, and a test subject in the test subject introduction space of this main body. A bed to be placed and introduced, a transmission system sub-section means for driving the gradient magnetic field generator and the excitation high frequency magnetic field generator according to a predetermined pulse sequence, and magnetic resonance induced from the subject by this drive. A magnetic field system comprising a control console equipped with receiving system sub-section means for detecting and processing signals, and storage means for storing information generated by this signal processing as clinical information in relation to the subject. The resonance imaging apparatus is characterized in that an optical storage medium is used as the storage means.

(Function) According to this configuration, the optical storage medium on which clinical information is recorded is not destroyed by the magnetic field generated from the main body, so the main body and the control console can be installed close to each other. This makes it possible to save space.

(Embodiment) An embodiment of the magnetic resonance imaging apparatus according to the present invention will be described below with reference to FIG. 1, in which the same parts as in FIG. 2 are denoted by the same reference numerals.

In this embodiment, the control console 4 is equipped with an optical card reader/writer 4b that uses an optical card as a storage medium as a storage means for storing clinical information.

This optical card has a storage capacity comparable to that of a conventional magnetic floppy disk (several hundred bytes to V&M bytes) and can store image data.

It stores patient identification data, operator findings data, etc.

According to this embodiment as described above, even if the control console 4 is under a magnetic field environment of several tens of Gauss, the optical card stored in the optical card reader/writer 4b will not cause data destruction, etc. There is no problem. Therefore, the control console 4 can be installed near the main body 2 in a magnetic field environment of several tens of Gauss, and the separation distance Hl can be set smaller than the conventional separation distance H2, making it possible to save space. .

The present invention is not limited to the embodiments described above, and can be implemented as a configuration in which a drive device having at least one of a reading function and a writing function using an optical storage medium is provided in [1 desk 4]. It is something.

[Effects of the Invention] As described above, according to the present invention, since an optical storage medium is used as a storage means provided in the control console, the optical storage medium on which clinical information is recorded is destroyed by the magnetic field generated from the main body. Therefore, the main body and the control console can be installed close to each other, which has the effect of saving space.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the structure of an embodiment of a magnetic resonance imaging apparatus according to the present invention, and FIG. 2 is a perspective view showing the structure of a conventional example. 2... Main body, 3... Bed, 4... Control console, 4b.
...Optical card reader/writer. Applicant's agent Patent attorney Takehiko Suzue Figure 1 9] Figure 2

Claims (1)

[Claims] A main body including a static magnetic field generator, a gradient magnetic field generator, and an excitation high-frequency magnetic field generator and forming a test subject introduction space, and a test subject is placed and introduced into the test subject introduction space of this main body. A bed, a transmission system control means for driving the gradient magnetic field generating device and the excitation high frequency magnetic field generating device according to a predetermined pulse sequence, and detecting a magnetic resonance signal induced from the subject by this driving and processing the signal. In a magnetic resonance imaging apparatus comprising a control console equipped with a reception system control means and a storage means for storing information generated by this signal processing as clinical information in relation to the subject, the storage means may be A magnetic resonance imaging apparatus characterized by using an optical storage medium.