CN201192531Y - Inference scale for radiotherapy field photography - Google Patents
Inference scale for radiotherapy field photography Download PDFInfo
- Publication number
- CN201192531Y CN201192531Y CNU2008200071717U CN200820007171U CN201192531Y CN 201192531 Y CN201192531 Y CN 201192531Y CN U2008200071717 U CNU2008200071717 U CN U2008200071717U CN 200820007171 U CN200820007171 U CN 200820007171U CN 201192531 Y CN201192531 Y CN 201192531Y
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- CN
- China
- Prior art keywords
- coordinatometer
- scale plate
- radiotherapy
- measure board
- picture
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- Expired - Fee Related
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- Radiation-Therapy Devices (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The utility model belongs to the field of medical apparatuses and particularly relates to a reference measure board for portal radiography for radiotherapy. The measure board has a rectangular shape and is similar to a lead baffle for an accelerator in the prior art. A coordinatometer composed of a plurality of points is arranged on the surface of the measure board; the pitch between each two points is determined according to a standard state SSD=100 cm, and the projection distance between adjacent points is 1 cm; and arrowheads are marked on the coordinatometer in the X-axis and Y-axis directions. The measure board has measurement and coordinate functions, and can overcome the disadvantages of the prior art to effectively reduce error generated during comparison with TPS, thereby improving the position verification accuracy. The reference measure board more suits the requirement for position verification for clinical radiotherapy.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of radiotherapy launched field that is used for and takes a picture with benchmark scale plate.
Background technology
At present, when making the launched field location verification in the clinical radiotherapy, be mostly to utilize the launched field photographic negative, as reference, adopt the irradiation field of naked eyes and radiotherapy treatment planning to compare, so exist bigger error with the organizational structure around reaching in the irradiation field.
Improve one of important means of radiotherapy quality, reduce in the process of treatment pendulum position the error between patient's irradiation field and the radiotherapy treatment planning system (TPS) exactly.Therefore radiotherapy treatment planning is before beginning to carry out, and in the whole implementation process, needs position, size and the shape of conventional checking patient exposure open country.Method at present commonly used has: electronics launched field image system and the launched field method of taking pictures, and the former real-time is good, but costs an arm and a leg; So the present launched field photographic process of mainly using, mostly it is to utilize in the irradiation field and open country organizational structure on every side as object of reference, when comparing with TPS, exists estimation difference.So present existing checking means can not satisfy the requirement of clinical radiotherapy.
Summary of the invention
The purpose of this utility model provides the apparatus that a kind of radiotherapy is used, and is specifically related to a kind of radiotherapy launched field that is used for and takes a picture with benchmark scale plate.
This utility model benchmark scale plate has " tolerance " and reaches " coordinate " function, can overcome the defective of prior art, reduces the error of existence when comparing with TPS effectively, improves the precision of pendulum position checking.Be fit to the requirement of launched field location verification in the clinical radiotherapy more.
This utility model benchmark scale plate 1 (hereinafter to be referred as the scale plate) adopts lucite to make, its profile is rectangular, the shelves stereotype used with the accelerator of prior art is identical, specification is 250 * 200 or 360 * 320 square millimeters, thickness is 10 millimeters, and its plate face of described scale plate is provided with " coordinatometer " 2, and coordinatometer is by showing respectively that a little 3 form, show that respectively spacing a little determines that according to standard state (SSD=100cm) the projection spacing between the consecutive points is 1cm; A described employing metal material tungsten bar that respectively shows is made, and the tungsten shank diameter is 2mm; On " X " of coordinatometer axle and " Y " direction of principal axis, indicate " arrow " 4 and " arrow " 5.
The tungsten bar density that this utility model scale plate is adopted is big, can stay obviously (Fig. 2) figure when therefore taking a picture on egative film.
This utility model launched field is taken pictures and has been adopted the notion of " coordinatometer " with benchmark scale plate, corresponding with the scale (spacing of point and change in coordinate axis direction) among the TPS figure, clinical practice shows, can improve the precision of position checking effectively, accelerated the speed of checking, comparison simultaneously.Be fit to the requirement of launched field location verification in the clinical radiotherapy more.
Description of drawings
Fig. 1 is this utility model benchmark scale plate sketch map,
Wherein, 1: scale plate, 2: coordinatometer, 3: show some 4:X " the axle arrow, 5:Y " the axle arrow.
Fig. 2 is this utility model benchmark scale plate result of use figure.
The specific embodiment
Embodiment 1
Adopt lucite to make this utility model benchmark scale plate 1 (hereinafter to be referred as scale plate), its profile is rectangular, the shelves stereotype used with the accelerator of prior art is identical, specification is 250 * 200 square millimeters, thickness is 10 millimeters, establishes " coordinatometer " 2 on its plate face of described scale plate, and described coordinatometer is by showing respectively that a little 3 form, show that respectively spacing a little determines that according to standard state SSD=100cm the projection spacing between the consecutive points is 1cm; A described employing metal material tungsten bar that respectively shows is made, and the tungsten shank diameter is 2mm; On " X " of coordinatometer direction of principal axis, indicate " arrow " 4, indicate " arrow " 5 on " Y " direction of principal axis.During use, " coordinatometer " that is adopted is corresponding with the scale (spacing of point and change in coordinate axis direction) among the TPS figure, can stay obvious figure during photograph on egative film, and the result shows, this scale plate can improve the precision of position checking effectively, accelerated the speed of checking, comparison simultaneously.
Embodiment 2
Adopt lucite to make scale plate (hereinafter to be referred as the scale plate), its profile is rectangular, the shelves stereotype used with the accelerator of prior art is identical, specification is 360 * 320 square millimeters, and thickness is 10 millimeters, establish " coordinatometer " on its plate face of described scale plate, coordinatometer is by showing respectively that a little 3 form, and shows that respectively spacing a little determines that according to standard state SSD=100cm the projection spacing between the consecutive points is 1cm; A described employing metal material tungsten bar that respectively shows is made, and the tungsten shank diameter is 2mm; On " X " of coordinatometer axle and " Y " direction of principal axis, indicate " arrow " 3 and " arrow " 3.During use, " coordinatometer " that is adopted is corresponding with the scale (spacing of point and change in coordinate axis direction) among the TPS figure, can stay obvious figure during photograph on egative film, and the result shows, this scale plate can improve the precision of position checking effectively, accelerated the speed of checking, comparison simultaneously.
Claims (4)
1. the radiotherapy launched field is taken a picture with benchmark scale plate, it is characterized in that its profile of described scale plate (1) is rectangular, and specification is 250 * 200 or 360 * 320 square millimeters, and thickness is 10 millimeters, and its plate face is provided with coordinatometer (2).
2. take a picture with benchmark scale plate by the described radiotherapy launched field of claim 1, it is characterized in that described coordinatometer by showing that point (3) forms, shows that respectively spacing a little is definite according to standard state SSD=100cm, the projection spacing between the consecutive points is 1cm.
3. take a picture with benchmark scale plate by the described radiotherapy launched field of claim 1, it is characterized in that a described employing metal material tungsten bar making of respectively showing, the tungsten shank diameter is 2mm.
4. take a picture with benchmark scale plate by the described radiotherapy launched field of claim 1, it is characterized in that establishing on the described coordinatometer " X " axle and " Y " axle, indicate arrow (4) on the described X-direction, indicate arrow (5) on the Y direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200071717U CN201192531Y (en) | 2007-12-29 | 2008-03-04 | Inference scale for radiotherapy field photography |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720077864.9 | 2007-12-29 | ||
| CN200720077864 | 2007-12-29 | ||
| CNU2008200071717U CN201192531Y (en) | 2007-12-29 | 2008-03-04 | Inference scale for radiotherapy field photography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201192531Y true CN201192531Y (en) | 2009-02-11 |
Family
ID=40392078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200071717U Expired - Fee Related CN201192531Y (en) | 2007-12-29 | 2008-03-04 | Inference scale for radiotherapy field photography |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201192531Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105902319A (en) * | 2016-05-27 | 2016-08-31 | 张琼 | Multi-functional card for surgical safety warning |
-
2008
- 2008-03-04 CN CNU2008200071717U patent/CN201192531Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105902319A (en) * | 2016-05-27 | 2016-08-31 | 张琼 | Multi-functional card for surgical safety warning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090211 Termination date: 20120304 |