JPS61164175A - Balance type gamma camera - Google Patents

Abstract

PURPOSE:To improve the diagnosis efficiency by attaching two gamma cameras in balanced position to the support arms attached to the rotatable pole. CONSTITUTION:Two gamma cameras 5, 6 are attached to the each end edge of supporting arm 2, and they are balanced in weight against supporting pole 4. The camera 5 overscans the object to be inspected, and at the same time the camera 6 under scans the object. After this, by rotating the supporting pole by 180 deg., cameras 5, 6 underscan and overscan respectively. In this way two objects can be photographed at the same time. And, by rotating camera 5 or 6 in the C direction, or by moving upward and downward in the A direction, two human objects can be photographed at the same time. Therefore, the efficiency of diagnosis is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a balanced gamma camera device used for nuclear medicine diagnosis.

[Technical background of the invention and its problems] Gamma camera devices are used for nuclear medicine diagnosis.

In other words, when a drug containing a radioisotope is injected into a subject,
Gamma rays are emitted from radioactive isotopes distributed within the subject, and the gamma camera device collects the gamma rays and provides data regarding the form and function of the subject's organs.

By the way, there is a balanced type gamma camera apparatus that balances a camera and a counterweight as a gamma camera apparatus, and FIG. 3 is a front view showing a state in which a subject is photographed by a conventional balanced type gamma camera apparatus. P is a subject, 1 is a gamma camera attached to one end of the support arm 2, 3 is a counterbalance attached to the other end of the support arm 2, and 4 is a support column of the support arm 2. The gamma camera 1 can be moved from the illustrated overscan state of the subject P to the underscan state position 1' shown by the imaginary line. In this way, the conventional balanced gamma camera device has a simple configuration and is capable of photographing the whole body of the subject P, including the front (overscan) and back (underscan), but the counterbalance 3 is made of lead or the like. , it is only used for weight balance and has no other use, and is disadvantageous in terms of space. Further, in the conventional device, the gamma camera 1 can only be photographed by moving the gamma camera 1 from the overscan state to the underscan state, and the diagnostic efficiency is extremely poor.

[Object of the Invention] The present invention has been made in view of the above points, and an object of the present invention is to provide a balanced gamma camera device with good space efficiency and diagnostic efficiency.

[Summary of the Invention] A summary of the present invention for achieving the above object includes a first gamma camera attached to one end of a rotatable support arm, and a first gamma camera attached to the other end of the support arm. It is characterized by having a second gamma camera attached to the first gamma camera so as to be weight-balanced, and it is possible to photograph two subjects at the same time. .

[Embodiments of the invention] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing the configuration of a balanced gamma camera device according to an embodiment of the present invention, and FIG. 2 is a front view showing a state in which a subject is photographed by the camera device. In the figure, parts having the same functions as those in FIG. 3 are given the same reference numerals. 5°6 is the 1st. A second gamma camera is attached to both ends of the support arm 2 and is weight-balanced with respect to the column 4. Furthermore, the cameras 5 and 6 can be moved up and down as shown by arrow A, and the support column 4 can be rotated in the direction shown by arrow B. Furthermore, the camera 5.6 can be rotated in the direction indicated by arrow C.

Next, the operation of the apparatus according to the embodiment will be explained.

In the state shown by the solid line in FIG.
1 is overscanned, and at the same time, the subject P2 is underscanned by the camera 6. After scanning, the support column 4 can be rotated by 180 degrees to set it in the position shown by the imaginary line, and the subject P1 will now be underscanned and the subject P2 will be overscanned. In this way, it is possible to simultaneously image two subjects. Furthermore, by rotating the camera 5 or camera 6 in the C direction and moving it up and down in the C direction, it is possible to photograph two subjects P1.22 at the same time.

[Effects of the Invention] As explained above, according to the present invention, since the two cameras are counterbalanced, there is no wasted space, and the object can be imaged twice as efficiently, which improves diagnostic efficiency. Significant improvements can be made. It is especially effective if used for group medical examinations.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the configuration of a balanced gamma camera device according to an embodiment of the present invention, and FIG. 2 is a front view showing a state in which a subject is photographed by the camera device. FIG. 3 is a front view showing a state in which a subject is photographed by a conventional balanced gamma camera device. P, Pl, P2... Subject, 1.5.6... Gamma camera, 2...
Support arm, 3...Counter balance, 4...
Prop.

Claims (1)

[Claims] a first gamma camera attached to one end of a support arm attached to a rotatable column; and a second gamma camera attached to the other end of the support arm so as to be weight balanced with the first gamma camera. A balanced gamma camera device comprising a camera.