JP2006109891A - X-ray image diagnostic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a burden on an operator of an X-ray image diagnostic apparatus by increasing the speed of a group examination. <P>SOLUTION: The X-ray image diagnostic apparatus comprises a radiographic sequence storage part 6 for storing the radiographic sequence including data on the posture to be taken by a bed or a support device, and a control device 5 for controlling the posture of the bed or the support device to be the next posture based on the radiographic sequence stored in the photographic sequence storage part whenever X rays are applied from an X-ray tube device 2 after the start of radiography and controlling the apparatus to complete a series of the radiographic sequences when the number of times of X-ray application from the X-ray tube device reaches a prescribed number. As a result, the radiography in various postures is possible while the positions of the bed and the support device are automatically set according to the series of the radiographic sequences is possible, and the series of the radiographic sequences can be completed when the number of times of X-ray application reaches the prescribed number, and therefore, the mental and physical burdens on the operator can be reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an X-ray diagnostic imaging apparatus particularly suitable for use in mass screening for digestive system diseases.

  Conventionally, X-ray diagnostic imaging apparatuses have been used for disease diagnosis and follow-up. In particular, an X-ray diagnostic imaging apparatus used for diagnosis of the circulatory system has a large number of movable parts, and it is important to operate these movable parts every time X-ray imaging to determine the imaging position. This was a heavy burden on the operator. Therefore, a function called auto-positioning was developed. This auto-positioning function requires an operator to store the position to be taken by each movable part as data for a certain X-ray imaging position and associate it with a 2-digit number, for example. If the number is designated according to the above, each movable part automatically moves to a desired photographing position to prepare for photographing.

  In such an X-ray diagnostic imaging apparatus having an auto-positioning function, a plurality of X-ray imaging positions are registered in advance in the order of imaging, and the operator presses the next positioning switch after the imaging at a certain position is completed. Has proposed that the movable part is moved to the next photographing position (see, for example, Patent Document 1).

In addition, there has been proposed a technique in which the labor of the operator is saved by moving to the next shooting position in conjunction with the shooting ON / OFF operation (see, for example, Patent Document 2).
JP 2000-197621 A JP 2001-149354 A

  However, the conventional techniques as described above, in the X-ray diagnostic imaging apparatus for circulatory organs, photographed the affected area taken before and then photographed in order to observe the condition of the affected area of the same subject (patient or examinee). In order to compare X-ray photographs of affected areas, the main purpose is to accurately reproduce the previous X-ray imaging position. Therefore, when it applies to the X-ray diagnostic imaging apparatus for the stomach part mass examination aiming at early detection of digestive system disease, the problem which should be solved still remained.

  In other words, there are several routines for X-ray imaging in gastric group screening, and the imaging position and sequence and the number of X-ray imaging are determined for each routine. For a busy operator (radiologist) who has to operate the diagnostic imaging device to position the imaging each time and continue X-ray imaging, how far imaging has been completed for the subject It was very important to pay attention to where the next shooting position was and whether the shooting was completed without omission. In addition, the bed is equipped with a rolling mechanism and a tilting mechanism so that the value is applied to the stomach wall of the subject during the examination, and the patient can be repositioned according to the rolling and tilting of the bed. Although it is necessary to urge the user, this is also a great mental and physical burden for an operator who repeats the same instruction to a large number of subjects.

  The present invention has been made to solve such problems.

  In order to solve the above-mentioned problem, the invention according to claim 1 is configured such that a subject is placed, and a bed that can be tilted and / or rolled and a subject placed on the bed are interposed. In an X-ray diagnostic imaging apparatus comprising a support means for supporting an X-ray generation means and an X-ray detection means so as to make the X-ray imaging direction relative to the subject variable, Storage means for storing an imaging sequence including posture data to be taken by the bed and / or the support means, and storage in the storage means for each X-ray exposure from the X-ray generation means after the start of X-ray imaging When the bed and / or the support means are controlled to the next posture based on the imaging sequence being performed, and when the number of X-ray exposures from the X-ray generation means reaches a predetermined number A series of shooting sea Characterized by a control means for controlling to terminate Nsu.

  Further, the invention according to claim 2 is the X-ray diagnostic imaging apparatus according to claim 1, wherein the subject prepared in advance for each posture to be taken by the bed and / or the support means is applied to the subject. It further comprises message generating means for transmitting instructions by voice.

  As shown in the section of the means for solving the above problems, according to the invention of each claim described in the claims of the present invention, the following effects can be obtained.

  According to the first aspect of the present invention, X-ray imaging can be performed in various postures while automatically setting the positions of the bed and the support device according to a series of imaging sequences, and the number of X-ray exposures can be reduced. When the predetermined number of times is reached, a series of photographing sequences can be terminated, so that the mental and physical burden on the operator can be reduced.

  According to the second aspect of the present invention, the instructions to the subject can be automatically notified by voice according to the position to be taken by the bed or the supporting device, and the subject can be operated promptly. Can speed up the inspection and reduce the burden on the operator.

  Hereinafter, an X-ray image diagnostic apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2.

  As an X-ray diagnostic imaging device used for mass screening of digestive system diseases, it can be installed in an X-ray examination room of a medical facility such as a hospital, and can also be used for on-site screening at a school or public hall different from the medical facility. For example, a mobile examination car in which an X-ray diagnostic imaging apparatus is installed in a car after refurbishing the bus is known. The X-ray diagnostic imaging apparatus according to the present invention can be applied to any of these, and FIG. 1 shows a schematic configuration thereof in a block diagram. In FIG. 1, a dotted line indicates a mechanical connection state, and a solid line indicates an electrical connection state.

  That is, an X-ray diagnostic imaging apparatus according to the present invention includes a bed 1 on which a subject (examinee) is placed, and an X-ray tube that irradiates the subject placed on the bed 1 with X-rays. The apparatus 2 and the support apparatus 4 which supports the X-ray detection part 3 which detects the X-ray image which permeate | transmitted the subject so that it may oppose.

  The bed 1 is configured to be able to rise and fall in the body axis direction of the subject and to be able to roll along the body axis of the subject. The support device 4 rotates the X-ray tube device 2 and the X-ray detection unit 3 around the body axis of the subject so that the X-ray exposure direction with respect to the subject can be changed as appropriate. The tube apparatus 2 and the X-ray detection unit 3 are configured to be inclined along the body axis direction of the subject.

  And the control apparatus 5 which organically controls the X-ray tube apparatus 2, the X-ray detection part 3, the support apparatus 4, etc. including this bed 1 is provided. The control device 5 includes an imaging sequence storage unit 6 for recording an imaging sequence such as an imaging position to be taken by the bed 1 or the support device 4 at the time of group examination, an X-ray imaging sequence, or the number of X-ray images, and the imaging sequence storage unit. 6 should be taken for the subject for each predetermined shooting position of the bed 1 or the support device 4 according to the shooting sequence stored in the drive control unit 7 for moving the bed 1 or the support device 4 to a predetermined shooting position. A message generation unit 8 for transmitting instructions regarding the posture and the like by voice, an exposure number counter 9 for counting the number of X-ray exposures by the X-ray tube apparatus 2, and the like are provided. An operation unit 10 having a keyboard and a pointing device is also provided for the control unit 5 so that the operator can appropriately perform setting operations and input instructions.

  Next, the operation of the thus configured X-ray image diagnostic apparatus according to the present invention will be described with reference to the flowchart shown in FIG.

  First, in step 1, the operator operates the operation unit 10, designates a desired imaging sequence from imaging sequences preset in the imaging sequence storage unit 6, and instructs the start of inspection (step 2). ). As a result, the bed 1 and the support device 4 are moved to predetermined positions by the drive control unit 7, and the operator presses an imaging button (not shown) at the timing while observing the fluoroscopic image. X-rays for imaging are exposed from 2 and the first X-ray imaging is performed (step 3). Here, an X-ray exposure signal is detected (step 4). The detection of the X-ray exposure signal is usually detected as an operation of a high voltage generator (not shown) that supplies a high voltage to the X-ray tube apparatus 2.

  When the X-ray exposure signal in step 4 is detected, the imaging sequence stored in the sequence storage unit 6 advances by one, and the next imaging position to be taken by the bed 1 and the support device 4 is determined by the drive control unit 7. In step 5, the drive control unit 7 moves the bed 1 and the support device 4. Then, it is determined as step 6 whether or not the movement to the predetermined position is completed, and a YES output is sent when the movement to the predetermined position is completed.

  On the other hand, the X-ray exposure signal detected in step 4 is counted by the exposure counter 9 (step 7), and whether or not a predetermined number of exposures has been reached, that is, a predetermined number of exposures. It is determined whether or not the number of X-ray images has been reached (step 8). If the predetermined number of shots has not yet been reached, a NO output is sent. The AND of the NO output in step 8 and the YES output in step 6 is taken as step 9, and if AND is established, the process returns to step 3 to start X-ray imaging at the next imaging position.

  Thereafter, by repeating such an operation, usually, dozens of X-rays are taken per examination, and when it is determined in step 8 that the predetermined number of X-rays has been reached, a series of imaging sequences is completed. Become.

  By the way, when performing X-ray imaging of the stomach, it is usually necessary to have a subject drink a value so that the value is uniformly applied to the stomach wall. However, although the bed 1 on which the subject is placed is tilted or rolled, this is not enough, and the subject can rotate himself on the bed or change the position and posture. You may need to get it.

  Therefore, of these, for example, “Please rotate slowly to the right twice” or “Please rotate to the left”, such as “Please rotate to the left”, to the subject by voice A message generator 8 is provided so that an instruction for prompting the operation can be given. In order to operate this message generator 8, since it is known what number in the imaging sequence the X-ray imaging at the position where the instruction in the message is necessary, the message is obtained by counting the number of imaging in step 7. May be sent to the message generator 8 to generate a necessary message when the number of times it should be issued, or an operation instruction may be given by the operator 10 using the operation unit 10 whenever necessary. You may do it.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention. For example, X-ray imaging can be performed again at the same imaging position, or imaging can be stopped or paused so that it can be handled when there is an imaging failure during the imaging sequence. It goes without saying that such a control may be incorporated. In addition, the shooting position may be determined by moving either the bed or the support device, or may not be determined unless both are moved.

1 is a block diagram showing an embodiment of an X-ray image diagnostic apparatus according to the present invention. (Example 1) It is the flowchart shown in order to demonstrate operation | movement of one Embodiment of the X-ray-image diagnostic apparatus which concerns on this invention. (Example 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bed 2 X-ray tube apparatus 3 X-ray detection part 4 Support apparatus 5 Control apparatus 6 Imaging sequence memory | storage part 7 Drive control part 8 Message generation part 9 Exposure frequency counter 10 Operation part

Claims (2)

A bed on which the subject is placed and can be tilted and / or rolled;
Support means for supporting the X-ray generation means and the X-ray detection means so as to face each other with the subject placed on the bed in between, and for changing the X-ray imaging direction with respect to the subject. In the X-ray diagnostic imaging apparatus provided,
Storage means for storing an imaging sequence including posture data to be taken by the bed and / or the support means at the time of group examination;
After the X-ray imaging is started, the bed and / or the support unit are set to the next posture based on the imaging sequence stored in the storage unit every time X-ray exposure from the X-ray generation unit is performed. And control means for controlling to end a series of imaging sequences when the number of X-ray exposures from the X-ray generation means reaches a predetermined number. Line image diagnostic device. 2. The message generating means according to claim 1, further comprising: a message generating means that conveys instructions prepared to the subject by voice for each posture to be taken by the bed and / or the support means. X-ray image diagnostic apparatus.

Images