CN102179008B - Positioning marking gauge for head positioning in radiotherapy - Google Patents
Positioning marking gauge for head positioning in radiotherapy Download PDFInfo
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- CN102179008B CN102179008B CN2011101039363A CN201110103936A CN102179008B CN 102179008 B CN102179008 B CN 102179008B CN 2011101039363 A CN2011101039363 A CN 2011101039363A CN 201110103936 A CN201110103936 A CN 201110103936A CN 102179008 B CN102179008 B CN 102179008B
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- 238000001959 radiotherapy Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 4
- 229920003023 plastic Polymers 0.000 claims abstract description 4
- 239000004033 plastic Substances 0.000 claims abstract description 4
- 235000015112 vegetable and seed oil Nutrition 0.000 claims abstract description 4
- 239000008158 vegetable oil Substances 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims abstract 4
- 230000004927 fusion Effects 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002595 magnetic resonance imaging Methods 0.000 description 21
- 239000007943 implant Substances 0.000 description 4
- 229920000965 Duroplast Polymers 0.000 description 2
- 102000004895 Lipoproteins Human genes 0.000 description 2
- 108090001030 Lipoproteins Proteins 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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- Radiation-Therapy Devices (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
本发明公开了一种放射治疗头部定位用定位标记尺，属于医疗用具技术领域，包括定位标记尺，定位标记尺包括一根横杆和一根斜杆，横杆的一端和斜杆的一端连接形成一个整体，呈直角三角形形状，横杆和斜杆内部均开设有空腔并且空腔之间互通，空腔中装有填充物，横杆的另一端和斜杆的另一端均密封，横杆和斜杆的材料为硬塑料，填充物为植物油脂，横杆与斜杆的夹角范围为30°-45°，横杆的直径范围为3mm-5mm，斜杆的直径范围为3mm-5mm；有益效果是体位定位准确，提高了CT/MRI图像配准和融合的精确度。
The invention discloses a positioning marking ruler for head positioning in radiotherapy, which belongs to the technical field of medical appliances and comprises a positioning marking ruler. The positioning marking ruler comprises a horizontal bar and a diagonal bar, one end of the horizontal bar and one end of the diagonal bar The connection forms a whole, which is in the shape of a right triangle. There are cavities inside the cross bar and the diagonal bar and the cavities communicate with each other. Fillers are installed in the cavity, and the other end of the cross bar and the other end of the diagonal bar are sealed. The material of the horizontal rod and the diagonal rod is hard plastic, the filler is vegetable oil, the angle between the horizontal rod and the diagonal rod is 30°-45°, the diameter of the horizontal rod is 3mm-5mm, and the diameter of the diagonal rod is 3mm -5mm; the beneficial effect is accurate positioning of the body position, which improves the accuracy of registration and fusion of CT/MRI images.
Description
Technical field
The present invention relates to a kind of positioning marked ruler for head positioning in radiation therapy, belong to the medical instruments technical field.
Background technology
The CT/MRI positioning image merges for radiotherapy treatment planning system can significantly improve the identification of tumor target area and the accuracy of delineating, but because CT/MRI image scanning parameter is inconsistent, the repeatability of patient posture is difficult to grasp, the image that scanning obtains often is difficult to find consistent position, and this gives follow-up image registration and merge and has brought very large difficulty and uncertain.Study of Registration based on characteristic point adopts approximate position characteristic point to carry out registration mostly at present, and the image of approximate registration is used for merging, and its result will have a greatly reduced quality in clinical using value.In the research formerly, nearly all carry out the analysis of determining of position and fusion accuracy as the reference gauge point with the anatomical structure gauge point, the registration of image is accurate not, and fusion and evaluation procedure are comparatively numerous and diverse, thereby have limited fusion image in clinical practical application.External gauge point subplan can solve CT/MRI image volume bit integrity problem more effectively, but all video pictures on the CT/MRI image of handmarking's point.Under same tag point location condition, carry out MRI T1WI enhancement sequences and CT location scanning, obtain MRI image and CT image, then find the image of the same aspect of CT/MRI according to external markers, carry out rapid registering and fusion.But thisly only rely on limited external gauge point to have fatal weakness, namely be difficult to be implemented in and all be shown to a certain handmarking's point on the CT/MRI image, still there is uncertainty in the position concordance.Position and utilize foundation ring to be equipped with the plastics location-plate, preferably imaging when CT image scanning, but during MRI image scanning because the position line of foundation ring and plastics location-plate all is metal, and then pseudo-shadow is larger, positioning image can't use.
Summary of the invention
Problem for above-mentioned prior art exists the invention provides a kind of positioning marked ruler for head positioning in radiation therapy, can effectively solve position consistency problem in the CT/MRI image co-registration, improves registration accuracy.
To achieve these goals, the technical solution used in the present invention is: a kind of positioning marked ruler for head positioning in radiation therapy, comprise the telltale mark chi, the telltale mark chi comprises a cross bar and a brace, one end of cross bar and an end of brace are connected to form an integral body, at right angles triangular shaped, cross bar and brace inside all offer intercommunication between cavity and the cavity, implant is housed in the cavity, and the other end of cross bar and the other end of brace all seal, and the material of cross bar and brace is duroplasts, implant is Vegetable oil lipoprotein, the angular range of cross bar and brace is 30 °-45 °, and the diameter range of cross bar is 3mm-5mm, and the diameter range of brace is 3mm-5mm.
The invention has the beneficial effects as follows: the position accurate positioning, improved the degree of accuracy of CT/MRI image registration and fusion.
Description of drawings
Fig. 1 is structural representation of the present invention
Fig. 2 is CT/MRI scanning pendulum of the present invention position sketch map
Fig. 3 is CT/MRI location scanning image of the present invention
Among the figure: 1, telltale mark chi, 2, cross bar, 3, brace, 4, cavity, 5, head mould, 6, head, 71, CT location scanning figure, 72, MRI location scanning figure, 8, the tomoscan point, 9, a pendulum position cross laser line.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
Such as Fig. 1, Fig. 2, with shown in Figure 3, a kind of positioning marked ruler for head positioning in radiation therapy, comprise telltale mark chi 1, telltale mark chi 1 comprises a cross bar 2 and a brace 3, one end of cross bar 2 and an end of brace 3 are connected to form an integral body, at right angles triangular shaped, cross bar 2 and brace 3 inside all offer intercommunication between cavity 4 and the cavity 4, in the cavity 4 implant is housed, the other end of the other end of cross bar 2 and brace 3 all seals, and the material of cross bar 2 and brace 3 is duroplasts, implant is Vegetable oil lipoprotein, cross bar 2 is 30 °-45 ° with the angular range of brace 3, and the diameter range of cross bar 2 is 3mm-5mm, and the diameter range of brace 3 is 3mm-5mm.
Work process: the patient gets dorsal position, and thermoplastic head mould 5 is shaped and is fixed on patient's head 6 head mould 5 can not arbitrarily be moved, but whole head mould 5 need not to be fixed on the fixture such as foundation ring.Before the beginning of location, at first utilize pendulum position cross laser line 9 to determine position, head mould 5 left and right sides, then tightly paste respectively and place a telltale mark chi 1, concrete grammar is that the patient gets dorsal position and lies, pendulum position cross laser line 9 throws from patient's head left and right sides respectively, take pendulum position cross laser line 9 horizontal lines as benchmark, allow the cross bar 2 of telltale mark chi 1 overlap with it, and so that the drift angle of telltale mark chi 1 overlap with laser rays 9 decussation points.Radiotherapy prelocalization making ruler 1 will no longer move the position, also utilize this telltale mark chi 1 to put bit manipulation during radiotherapy.Under identical location condition, utilize magnetic resonance machine to carry out MRI T1WI enhancement sequences and CT location scanning, obtain CT location scanning Figure 71 and MRI location scanning Figure 72, magnetic resonance machine passes through network connection with the computer that image registration and fusion software are installed, telltale mark chi 1 can imaging when carrying out the CT/MRI location scanning, and in CT location scanning Figure 71 and MRI location scanning Figure 72, show with tomoscan point 8, CT location scanning Figure 71 and MRI location scanning Figure 72 directly offer image registration and fusion software by network, whether the relative distance between the tomoscan point 8 that image registration and fusion software show in CT location scanning Figure 71 and MRI location scanning Figure 72 according to telltale mark chi 1 is consistent, determine the concordance of position, thereby realize the autoregistration of CT/MRI positioning image, and on this basis registered images is merged.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101039363A CN102179008B (en) | 2011-04-26 | 2011-04-26 | Positioning marking gauge for head positioning in radiotherapy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101039363A CN102179008B (en) | 2011-04-26 | 2011-04-26 | Positioning marking gauge for head positioning in radiotherapy |
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| CN102179008A CN102179008A (en) | 2011-09-14 |
| CN102179008B true CN102179008B (en) | 2013-01-23 |
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| CN2011101039363A Expired - Fee Related CN102179008B (en) | 2011-04-26 | 2011-04-26 | Positioning marking gauge for head positioning in radiotherapy |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055424B (en) * | 2013-02-01 | 2015-08-19 | 徐州医学院 | A kind of based on CT/MRI binary bit scan autoregistration and fusion Radiotherapy evaluating apparatus |
| CN103054607A (en) * | 2013-02-01 | 2013-04-24 | 徐州医学院 | CT/MRI (Computed Tomography/Magnetic Resonance Imaging) double-body position fusion device for radiation therapy |
| CN103083038A (en) * | 2013-02-01 | 2013-05-08 | 徐州医学院 | Computed tomography (CT) double-position automatic registration and fusion device |
| CN104523287A (en) * | 2015-01-12 | 2015-04-22 | 天津医科大学第二医院 | Stereoscopic orientation frame for PET, CT and MR image fusion of head and neck range |
| CN105796184B (en) * | 2016-04-19 | 2018-03-13 | 上海市肺科医院 | V-type band film positioner and preparation method thereof in a kind of hysteroscope art of 3D printing |
| CN109663223B (en) * | 2019-01-10 | 2021-03-16 | 余柳霏 | Positioning mark ruler for positioning head in radiotherapy |
| CN113476151A (en) * | 2021-07-07 | 2021-10-08 | 西南医科大学附属医院 | Navigation marker meeting magnetic resonance and CT dual-purpose requirements |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1958664A2 (en) * | 2007-02-16 | 2008-08-20 | Mitsubishi Heavy Industries, Ltd. | Medical device |
| JP2009526224A (en) * | 2006-02-07 | 2009-07-16 | アストラゼネカ・アクチエボラーグ | Equipment for analyzing the performance of spectrometer systems |
| CN201353145Y (en) * | 2009-02-18 | 2009-12-02 | 隋振忠 | Multifunctional body thickness rule |
| CN101849858A (en) * | 2009-04-03 | 2010-10-06 | 王平 | Radiotherapy locating device for skull tumors |
| CN101926679A (en) * | 2010-07-29 | 2010-12-29 | 苟东卫 | Three-dimensional positioning guiding gauge for puncture and using method thereof |
| CN202086957U (en) * | 2011-04-26 | 2011-12-28 | 徐州医学院 | Positioning marked ruler for head positioning in radiation therapy |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009526224A (en) * | 2006-02-07 | 2009-07-16 | アストラゼネカ・アクチエボラーグ | Equipment for analyzing the performance of spectrometer systems |
| EP1958664A2 (en) * | 2007-02-16 | 2008-08-20 | Mitsubishi Heavy Industries, Ltd. | Medical device |
| CN201353145Y (en) * | 2009-02-18 | 2009-12-02 | 隋振忠 | Multifunctional body thickness rule |
| CN101849858A (en) * | 2009-04-03 | 2010-10-06 | 王平 | Radiotherapy locating device for skull tumors |
| CN101926679A (en) * | 2010-07-29 | 2010-12-29 | 苟东卫 | Three-dimensional positioning guiding gauge for puncture and using method thereof |
| CN202086957U (en) * | 2011-04-26 | 2011-12-28 | 徐州医学院 | Positioning marked ruler for head positioning in radiation therapy |
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