CN109961474A - A kind of space ranging method and localization method based on MR/CT tomography sequence - Google Patents
A kind of space ranging method and localization method based on MR/CT tomography sequence Download PDFInfo
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- CN109961474A CN109961474A CN201910277752.5A CN201910277752A CN109961474A CN 109961474 A CN109961474 A CN 109961474A CN 201910277752 A CN201910277752 A CN 201910277752A CN 109961474 A CN109961474 A CN 109961474A
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- 238000003325 tomography Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000004807 localization Effects 0.000 title abstract description 9
- 230000035479 physiological effects, processes and functions Effects 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 6
- 238000001727 in vivo Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 3
- 240000006409 Acacia auriculiformis Species 0.000 description 2
- 210000005252 bulbus oculi Anatomy 0.000 description 2
- 210000001638 cerebellum Anatomy 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 206010003694 Atrophy Diseases 0.000 description 1
- 230000004520 agglutination Effects 0.000 description 1
- 230000037444 atrophy Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000017712 cerebellum development Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
- A61B5/0042—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the brain
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computed tomography [CT]
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/501—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of the head, e.g. neuroimaging or craniography
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10081—Computed x-ray tomography [CT]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30008—Bone
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- Life Sciences & Earth Sciences (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- General Health & Medical Sciences (AREA)
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- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
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- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Neurosurgery (AREA)
- Oral & Maxillofacial Surgery (AREA)
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Abstract
The invention discloses a kind of space ranging method and 3-D positioning method based on MR/CT tomography sequence.The present invention makes full use of the coordinate system of MR/CT tomography sequence, constructs three-dimensional distance measuring method, can carry out space measurement to intracorporal institutional framework；Further using physiology or handmarking as reference, three-dimensional localization can be carried out to any site such as in-vivo tissue structure and its body surface projection.
Description
Technical field
The present invention relates to a kind of space ranging methods based on MR/CT tomography sequence, provide a kind of measurement for medical image
Tool, can be used for measuring the institutional framework that can not be looked at straight in vivo and three-dimensional localization.
Background technique
Common medical image software has ranging tool more at this stage, this tool is only limitted to the two o'clock in same tomography
Between ranging, and in different tomography point-to-point transmission then can not ranging, that is, cannot achieve the space measurement of in-vivo tissue structure.
When needing to intervene in-vivo tissue structure through body surface, the not physiology in same tomography or artificial mark can not be utilized
Note point is used as reference, carries out body surface location to inlet point in real space.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of space rangings based on MR/CT tomography sequence
Method and localization method.
The present invention adopts the following technical scheme: a kind of space ranging method based on MR/CT tomography sequence, including it is following
Step:
(1) coordinate system for utilizing MR/CT tomography sequence, determines the X of test point, Y, Z value, wherein X, Y pass through the point
X in tomography where it, Y value determine that Z value determined by the bed value of tomography where the point.
(2) three-dimensional coordinate obtained according to step (1), using space length formula calculate two test points between away from
From.
A kind of space-location method based on MR/CT tomography sequence, this method are as follows:
Using reference point and point to be determined as test point, reference point and undetermined is obtained using method described in claim 1
The distance in site, the reference point are physiology mark point or handmarking's point.
It is worth using the distance between the point to be determined and more than two reference points, to point to be determined under real space
Carry out three-dimensional localization.
The beneficial effects of the present invention are the present invention makes full use of the coordinate system of MR/CT tomography sequence, and building is three-dimensional
Distance measuring method, can to intracorporal institutional framework carry out space measurement；Further using physiology or handmarking as reference,
Three-dimensional localization can be carried out to any site such as in-vivo tissue structure and its body surface projection.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram；
Fig. 2: 1 interrupting layer sequence chart of embodiment；
Fig. 3: the label schematic diagram at 1 two eyeball centers of embodiment
Fig. 4: the tomography sequence chart of embodiment 2；
Fig. 5: the label schematic diagram of 2 two reference points of embodiment (auris dextra screen-left figure and the crown-right figure)；
Fig. 6: the label schematic diagram of 2 point to be determined of embodiment.
Specific embodiment
MR/CT tomography sequence is the image obtained from the profile scanning that a certain position of human body is made one by one
Sequence carries out CT tomoscan to square shown in FIG. 1, can be obtained the scanning figure that a series of shape is square, example
The fault plane a and b indicated in such as figure.
Embodiment 1: the three-dimensional measurement of interocular distance.
Fig. 2 a~f is the part tomography sequence of cerebellum, and due to shooting angle problem, two pupils are not same disconnected
It is clearly showed that in sequence of layer, ranging can only be carried out by pupil position according to a preliminary estimate according to original method.Side according to the invention
Method, first obtains the X where it in tomography of pupil center in c and f, Y value, and using the bed value of tomography where the point as Z
Value, to obtain the three-dimensional coordinate of Liang Ge pupil center, measuring spacing according to two coordinates is 65mm.
Above-mentioned measurement method can not only be treated with aided disease diagnosis, can be also used for studying, for example, being with rat
Subjects carry out quantitative research to its bone tissue agglutination, are quantified to its cerebellum development or atrophy process, studied
Etc..
Embodiment 2: three dimension location
Fig. 4 a~f is the part tomography sequence of cerebellum, determines that auris dextra screen and the crown position Liang Ge are reference point, purpose exists
In determining left eye ball rearward position, the positioning of the position cannot be only used for associated treatment, can be used for accurately being implanted into related high
Scientific and technological chip, to carry out sensing or analysis of image data etc..Localization method is as follows:
The unit coordinate for first obtaining the point to be determined of cross phenotypic marker in two mark points and Fig. 5 in Fig. 4, to calculate
The distance of reference point and point to be determined out is worth, true using the distance between the point to be determined and more than two reference points
Three-dimensional localization is carried out to point to be determined under space.
Claims (2)
1. a kind of space ranging method based on MR/CT tomography sequence, which comprises the following steps:
(1) coordinate system for utilizing MR/CT tomography sequence, determines the X of test point, Y, Z value, wherein X, Y pass through its place of the point
X in tomography, Y value determine that Z value is determined by the bed value of tomography where the point.
(2) three-dimensional coordinate obtained according to step (1) calculates the distance between two test points using space length formula.
2. a kind of space-location method based on MR/CT tomography sequence, which is characterized in that this method are as follows:
Using reference point and point to be determined as test point, reference point and point to be determined are obtained using method described in claim 1
Distance, the reference point be physiology mark point or handmarking's point.
It is worth using the distance between the point to be determined and more than two reference points, three is carried out to point to be determined under real space
Dimension positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910277752.5A CN109961474A (en) | 2019-04-08 | 2019-04-08 | A kind of space ranging method and localization method based on MR/CT tomography sequence |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910277752.5A CN109961474A (en) | 2019-04-08 | 2019-04-08 | A kind of space ranging method and localization method based on MR/CT tomography sequence |
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| CN109961474A true CN109961474A (en) | 2019-07-02 |
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| CN201910277752.5A Pending CN109961474A (en) | 2019-04-08 | 2019-04-08 | A kind of space ranging method and localization method based on MR/CT tomography sequence |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775183A (en) * | 2005-12-07 | 2006-05-24 | 嘉兴市第一医院 | Framed stereo directed neurosurgery system registration method |
| CN103007440A (en) * | 2012-12-13 | 2013-04-03 | 上海交通大学 | Method for positioning three-dimensional coordinate of ultrasonic probe based on magnetic resonance image |
| CN103083090A (en) * | 2012-12-29 | 2013-05-08 | 浙江大学医学院附属第二医院 | Method using cross-sectional image to obtain coordinate of target point in stereotaxic apparatus |
| WO2018068033A1 (en) * | 2016-10-09 | 2018-04-12 | eyeBrain Medical, Inc. | Lens with off-axis curvature center |
-
2019
- 2019-04-08 CN CN201910277752.5A patent/CN109961474A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1775183A (en) * | 2005-12-07 | 2006-05-24 | 嘉兴市第一医院 | Framed stereo directed neurosurgery system registration method |
| CN103007440A (en) * | 2012-12-13 | 2013-04-03 | 上海交通大学 | Method for positioning three-dimensional coordinate of ultrasonic probe based on magnetic resonance image |
| CN103083090A (en) * | 2012-12-29 | 2013-05-08 | 浙江大学医学院附属第二医院 | Method using cross-sectional image to obtain coordinate of target point in stereotaxic apparatus |
| WO2018068033A1 (en) * | 2016-10-09 | 2018-04-12 | eyeBrain Medical, Inc. | Lens with off-axis curvature center |
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Application publication date: 20190702 |