CN100502787C - Control device for positioning scanning length and method thereof - Google Patents
Control device for positioning scanning length and method thereof Download PDFInfo
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- CN100502787C CN100502787C CNB2006100891815A CN200610089181A CN100502787C CN 100502787 C CN100502787 C CN 100502787C CN B2006100891815 A CNB2006100891815 A CN B2006100891815A CN 200610089181 A CN200610089181 A CN 200610089181A CN 100502787 C CN100502787 C CN 100502787C
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- sick bed
- signal source
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Abstract
The present invention provides a controlling device for scanning length of the positioning image and the method. A signal from ending place of the scanning is arranged directly and conveniently before positioning image scanning, therefore a delay time is obtained by calculation before the scanning ending position reaching a fixed data collecting position. The positioning image scanning can stop in the system after the delayed period; therefore purpose for accurate controlling of the positioning image scanning length is realized.
Description
Technical field
The present invention relates to a kind of computed tomography imaging technique, particularly relate to a kind of control technology of locating picture scanning.
Background technology
In the computed tomography imaging inspection, before beginning, formal scanning usually needs a scanning location picture (topogram) earlier, look like to determine final sweep limits according to this location then.
The general step of scanning location picture is definition one scan starting position on the removable sick bed of computer dislocation scanning and imaging system, and this scanning starting position generally is being positioned on the data acquisition position of this computer dislocation scanning and imaging system; On the main frame of gated sweep, select the moving direction of this removable sick bed then, and the sweep length of in the table that pre-defines as shown in Figure 1, selecting this location picture.
Above-mentioned method needs to judge artificially and abstractively the moving direction of this removable sick bed and the sweep length of selecting required location picture.But because the option of the sweep length of alternative location picture is limited, and the deviation of artificially judging the sweep length of required location picture, usually need multi-pass operation can obtain satisfied effect.Is 512 millimeters as the scan operation personnel selecting the sweep length of location picture through judging at the beginning, but but find the zone that this sweep length can not cover fully needs scanning after the been scanned, the physical length in the zone that this need scan is 530 millimeters; Yet do not have suitable option in the table that pre-defines as shown in Figure 1, can only select 768 millimeters scannings that position picture once more.
Under above-mentioned situation, the patient who accepts scanning has absorbed very heavy dose of unnecessary X-ray radiation.In order to reduce this unnecessary X-ray radiation dose, the scan operation personnel have to observe whole scanning process, and manually push the button that stops to scan by rule of thumb in the required length of the similar arrival of sweep length.
Therefore as a kind of convenience can be provided, the control device of orientation scanning length and method thereof have become problem demanding prompt solution in the picture scanning of location automatically intuitively.
Summary of the invention
The objective of the invention is to propose a kind of control device and method thereof of orientation scanning length, be used for controlling orientation scanning length conveniently, intuitively, and when scanning arrives required length, automatically stop scanning.
For realizing above-mentioned purpose, the present invention proposes a kind of control device of orientation scanning length, is used for having the computer dislocation scanning and imaging system of a removable sick bed, and this device has the receptor that a signal source and is used to survey described signal source; This signal source is arranged on the one scan end position of this removable sick bed, and moves with described removable sick bed; This receptor detects this signal source when being used for preset distance before this signal source arrives a fixed data collection position, and stops scanning making this scan end position overlap with this data acquisition position after a time delay.
Correspondingly, the present invention proposes a kind of control method of orientation scanning length, is used for having the computer dislocation scanning and imaging system of a removable sick bed, it is characterized in that: on this removable sick bed the one scan end position is set; When this scan end position arrives preset distance before the data acquisition position, calculate a time delay, and after this time delay, stop scanning and make this scan end position overlap with this data acquisition position.
Because above-mentioned signal source can be arranged on this scan end position convenient before the picture scanning of location, intuitively, and before arriving this fixed data acquisition position, this scan end position calculates this time delay, therefore can make system after this time delay, stop to locate the scanning of picture, thereby reach the purpose of accurate control orientation scanning length.
Description of drawings
Fig. 1 has the sketch map of location selective in the method as the option of length now;
Fig. 2 is the schematic top plan view of the control device of orientation scanning length of the present invention; And
Fig. 3 is the flow chart of the control method of orientation scanning length of the present invention.
The specific embodiment
See also Fig. 2, the control device of orientation scanning length of the present invention is used for computer dislocation scanning and imaging system 100, this computer dislocation scanning and imaging system 100 has a removable sick bed 10, and patient 60 lies on this removable sick bed 10 and along with this removable sick bed 10 moves and positions picture scanning.
The scanning of described location picture is since a fixed data acquisition position 30, and this removable sick bed 10 moves towards this data acquisition position 30, and the location is as the end of scan when a predetermined scan end position 20 arrives this data acquisition position 30.
Before the picture scanning of location, on this predetermined scan end position 20, a signal source 40 is set, the scan operation personnel can be arranged on this signal source 40 on the needed position intuitively, therefore needing in the existing method can avoid the scan operation personnel to estimate to locate the length of picture scanning by rule of thumb, caused from the scanning that positions picture as the suitable option of selection the tabulation of Fig. 1 then because of selecting improper problem of having to rescan.This signal source 40 is along with removable sick bed 10 moves together, and gives off laser beam in the process that moves.
Apparatus of the present invention also comprise a receptor 50, arrive this signal source 40 by detecting described detecting laser beam when being used for the preset distance before this signal source 40 arrives this data acquisition position 30.
In a preferred embodiment of the invention, between this data acquisition position 30 and this scan end position 20, receptor 50 is set, one above-mentioned receptor 50 is set respectively in the both sides of this data acquisition position 30 usually, be used for when the signal source 40 that be arranged on this removable sick bed 10 from both sides through out-of-date its laser beam that detects, between wherein said receptor 50 and the described data acquisition position is predetermined apart from d, so the preset distance be in this data acquisition position 30 of described arrival when these signal source 40 these receptors 50 of process before.
Apparatus of the present invention also comprise the detector 70 that is arranged on this data acquisition position 30, survey the position of this signal source 40 with respect to this data acquisition position 30.Because this detector 70 is positioned on this data acquisition position, so only need detect this signal source 40 and judge that its left that is currently located at this data acquisition position 30 still is right-hand, just can determine the moving direction of this removable sick bed 10, make it move towards this data acquisition position.
After the scan operation personnel are arranged on described scan end position 20 with described signal source 40 as required intuitively, detector 70 is surveyed the position of this signal source 40 with respect to this data acquisition position 30, when vertical view as shown in Figure 2, when described signal source 40 is positioned at this data acquisition position 30 right-hand, thereby make this removable sick bed 10 be moved to the left the scanning that begins to locate picture, shown in the arrow among Fig. 2; In like manner, when described signal source 40 is positioned at the left of this data acquisition position,, this removable sick bed 10 begins to locate the scanning of picture thereby being moved right.This signal source 40 gives off laser beam during the moving of this removable sick bed 10, when its this receptor 50 of process, this receptor 50 detects its laser beam, 30 distances are on the position of d from this data acquisition position thereby definite this scan end position 20 is currently located at, translational speed according to distance d and this removable sick bed 10 calculates a time delay, obtain this time delay apart from d divided by the translational speed of this removable sick bed 10 with this, thereby system stops to locate the scanning of picture after this time delay makes this scan end position just in time overlap with this data acquisition position, has reached the purpose of accurate this orientation scanning length of control.
Correspondingly, the present invention proposes a kind of control method of orientation scanning length, is used for having the computer dislocation scanning and imaging system 100 of a removable sick bed 10, and it is provided with one scan end position 20 on this removable sick bed 10; Calculate a time delay during preset distance before this scan end position 20 arrives a fixed data acquisition position 30, and after this time delay, stop scanning and make this scan end position 20 overlap with this data acquisition position 30.
The control method of this orientation scanning length may further comprise the steps:
Step S10: on this removable sick bed 10, one scan end position 20 is set; Wherein, indicate this end position 20 by the signal source 40 that aforementioned means is set.
Step S20: the moving direction of determining this removable sick bed 10; Wherein, survey the position of this scan end position 20, make the direction of this removable sick bed 10 move towards this data acquisition position 20 with respect to this data acquisition position 30 by the detector 70 of aforementioned means.
Step S30: move this removable sick bed 10 to begin to locate the scanning of picture according to described moving direction.
Step S40: when the preset distance before this this data acquisition position 30 of scan end position 20 arrival, calculate a time delay; Wherein, by this preset distance is obtained this time delay divided by the translational speed of this removable sick bed 10.
Step S50: after this time delay, stop to locate the scanning of picture, thereby make this scan end position overlap with this data acquisition position.
The inventive method is controlled the sweep time of this location picture scanning by above-mentioned step, thereby accurately controls this orientation scanning length.
Claims (9)
1. the control device of an orientation scanning length, be used for having the computer dislocation scanning and imaging system of a removable sick bed (10), this device has the receptor (50) that a signal source (40) and is used to survey described signal source, it is characterized in that: this signal source (40) is arranged on the one scan end position (20) of this removable sick bed, and moves with described removable sick bed; This receptor (50) is used for detecting this signal source (40) when this signal source (40) arrives before preset distance (d) of a fixed data acquisition position (30), and stops scanning making this scan end position (20) overlap with this data acquisition position (30) after a time delay.
2. according to the control device of the orientation scanning length of claim 1, it is characterized in that: this signal source (40) gives off laser beam in the moving process of removable sick bed (10) along with this, and this receptor (50) is surveyed this laser beam to determine that this signal source (40) arrives described preset distance (d).
3. according to the control device of the orientation scanning length of claim 1 or 2, it is characterized in that: this receptor (40) is arranged between this data acquisition position (30) and this scan end position (20).
4. according to the control device of the orientation scanning length of claim 1 or 2, it is characterized in that: obtain by the translational speed of this preset distance (d) divided by this removable sick bed (10) described time delay.
5. according to the control device of the orientation scanning length of claim 1, comprise that further one is arranged on the detector (70) on this data acquisition position (30), be used for surveying the position of this signal source (40), make this removable sick bed (10) move towards this data acquisition position (30) with respect to this data acquisition position (30).
6. according to the control device of the orientation scanning length of claim 1, it is characterized in that: the position of this signal source (40) on this removable sick bed (10) can be adjusted, and is used for indicating this scan end position (20).
7. the control method of an orientation scanning length is used for having the computer dislocation scanning and imaging system of a removable sick bed, it is characterized in that: on this removable sick bed the one scan end position is set; When this scan end position arrives preset distance before the fixed data acquisition position, calculate a time delay, and after this time delay, stop scanning and make this scan end position overlap with this data acquisition position.
8. according to the control method of the orientation scanning length of claim 7, it is characterized in that: obtain by the translational speed of this preset distance divided by this removable sick bed described time delay.
9. according to the control method of the orientation scanning length of claim 7, it is characterized in that: before the scanning beginning, judge the position of this scan end position, make the direction of this removable sick bed move towards this data acquisition position with respect to this data acquisition position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100891815A CN100502787C (en) | 2006-08-08 | 2006-08-08 | Control device for positioning scanning length and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100891815A CN100502787C (en) | 2006-08-08 | 2006-08-08 | Control device for positioning scanning length and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101120882A CN101120882A (en) | 2008-02-13 |
| CN100502787C true CN100502787C (en) | 2009-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100891815A Expired - Fee Related CN100502787C (en) | 2006-08-08 | 2006-08-08 | Control device for positioning scanning length and method thereof |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101297760B (en) * | 2007-04-30 | 2011-04-27 | 上海西门子医疗器械有限公司 | Sick bed positional control system and method |
| CN102525524B (en) * | 2010-12-20 | 2013-11-06 | 上海西门子医疗器械有限公司 | Positioning device for scanning positioning images and device |
| CN102519601B (en) * | 2011-11-24 | 2014-10-29 | 四川九洲电器集团有限责任公司 | Spiral scanning method for rapid omnibearing search |
| CN103767722B (en) * | 2012-10-25 | 2016-04-27 | 上海联影医疗科技有限公司 | The localization method that CT or PET-CT system and carrying out scans |
| CN103800027A (en) * | 2012-11-14 | 2014-05-21 | 上海联影医疗科技有限公司 | Positron emission computed tomography scanning method and system |
| CN105078496A (en) * | 2014-04-30 | 2015-11-25 | 上海西门子医疗器械有限公司 | Method for scanning double positioning images and computed tomography device |
| CN108634975A (en) * | 2018-04-26 | 2018-10-12 | 沈阳东软医疗系统有限公司 | Scan orientation method and apparatus |
| CN113545796A (en) * | 2021-07-23 | 2021-10-26 | 西北农林科技大学 | Method for detecting pork quality character by using computer tomography scanning living body |
| CN114557829B (en) * | 2022-03-25 | 2023-09-19 | 上海联影医疗科技股份有限公司 | Movable sickbed and control method thereof |
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2006
- 2006-08-08 CN CNB2006100891815A patent/CN100502787C/en not_active Expired - Fee Related
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Owner name: SHANGHAI SIEMENS MEDICAL INSTRUMENTS CO., LTD. Free format text: FORMER OWNER: SIEMENS (CHINA) AG Effective date: 20080328 |
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Effective date of registration: 20080328 Address after: Zhou Hao road 278, Shanghai, Nanhui, China Code: 201318 Applicant after: Siemens Shanghai Medical Equipment Co., Ltd. Address before: 7, South Central Road, Chaoyang District, Beijing, Wangjing, China: 100102 Applicant before: Simens Co., Ltd. (China) |
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