CN101057786A

CN101057786A - CT and MR image amalgamation external controlling point module

Info

Publication number: CN101057786A
Application number: CN 200610043608
Authority: CN
Inventors: 陈兆秋; 于甬华; 李万湖; 付政
Original assignee: 陈兆秋
Priority date: 2006-04-19
Filing date: 2006-04-19
Publication date: 2007-10-24
Anticipated expiration: 2026-04-19
Also published as: CN101057786B

Abstract

The invention relates to a module that can provide CT and MR image match and blend outer control point. The module is provided with one longitudinal pipe (1) and one transverse pipe (2), which are stereo crossed and mutually perpendicular; the two ends of longitudinal pipe and transverse pipe are closed, and filled with red liquid of double CT and MR development; the vertical projection of longitudinal pipe and transverse pipe are equipped with relevant longitudinal line (3) and transverse line (4) on the surface crossing point, and the longitudinal line and transverse line are two crossing lines on the mould surface. The mould can show internal pipe structure during CT and MR scanning, and can provide CT and MR image of effective control point outside of blending body.

Description

CT, MR image amalgamation external controlling point module

Technical field:

The present invention relates to a kind of medical apparatus, specifically is exactly a kind of module that CT, MR image registration amalgamation external controlling point can be provided.

Background technology:

Traditional medical diagnosis and treatment can only be inferred and understand for the pathological change of intravital tissue of patient and internal organs by indirect measurement and chemical examination means.Computer technology rapid development makes complicated medical information visual.With CT, MR is that the tomoscan image three-dimensional reconstruction of representative makes the doctor can understand focus or tumor size, shape and in the relative locus of inside of human body, improved the perform the operation accuracy of successful confidence and radiotherapy tumor of doctor, undoubtedly to the image-guidance of domestic and international mushroom development treatment (ImageGuided Therapy, IGT) technology plays an important role.Yet, the medical image that a kind of imaging device obtains does not often satisfy doctor's diagnosis and treatment requirement, need carry out the medical figure registration integration technology, exactly two medical images of different nature are shone upon one to one and combine, the point that is the space same position is mapped, can express the multi-aspect information of human body on same width of cloth image simultaneously, internal structure and functional status from medical image reaction human body more directly provide human dissection and physiological and pathological information.The key of image co-registration is image registration.The image registration methods that adopt based on the image control point more.Control point split inner control point and external control point.Body inner control point is an anatomic landmark point in some bodies, seeks quite difficulty, bothersome, and requiring has certain experience, has some subjectivitys, is difficult for grasping.Adopt external control point obviously, accurately, the registration amount of calculation is little, good stability, speed is fast, and the precision height is easily grasped, but external control point is not the imaging point of identical material, need change in different imaging device inspections, satisfies the requirement of this equipment control point imaging.CT, MR image are complete faultage images, and the complementation of image medical information, and the two image co-registration meaning is bigger.For example in the radiotherapy of tumor, utilize the MR image to determine tumor size border, utilize the CT image to carry out radiation dose calculation, reach not only target standard of treatment tumor, and the accurate purpose of dosage.Medical skill personnel wish to have a kind of such CT, MR image co-registration control point little module, be fixed in outside external or body (face) mould of checking the treatment patient, replacing does not need to change module when doing CT or MR scanning, and can provide the image registration amalgamation external controlling point, reduce operation link, improved the image co-registration precision.Through retrieval, also do not find CT, MR image registration amalgamation external controlling point module.

Technology constitutes:

The object of the present invention is to provide a kind of simple in structurely, small and exquisite, be fixed on body surface or body (face) mould, CT, MR image control point are identical material, have CT, MR scanning obviously develop dual, the module that need not change during scanning.

The present invention realizes like this.Be provided with vertically a pipe and a transverse pipe in module, vertically pipe is crossings on different level with transverse pipe, and vertical mutually; Vertically the two ends of pipe and transverse pipe are closed state, be full of in it have CT, the red liquid of the dual development of MR; Vertically the upright projection of pipe and transverse pipe is provided with corresponding ordinate and horizontal line respectively at module table hand-deliver crunode; Ordinate and horizontal line be two at the orthogonal reticule in module surface.

During use, module is fixed on the human body, each one of the both sides of the long axis direction of human body and front, and the ordinate of module is parallel with the major axis of human body, three module intermediate cross-section markings, and promptly horizontal line overlaps with CT, MR transverse scan line.CT, MR scanning adopt identical bed thickness (3～4mm) and the visual field (FOV), continuously every continuous sweep.The CT that obtains like this, MR image bed thickness are with big or small consistent, and one deck is only arranged on the intermediate cross-section of three modules, transverse pipe on the cross section is shown as bright rectangular tubular (background is a black) on CT, MR image, vertical pipe of three module long axis direction is shown as circular bright spot, with the effective control point of three bright spots, carry out image co-registration as image registration.According to 3 definite planar principles, the registration at three control point merges CT, the MR image co-registration that just can obtain this aspect.Just can obtain CT, the MR image co-registration (image fusion software all possesses this function) of a plurality of aspects up and down with this aspect as benchmark fusion aspect, thereby reach comprehensive fusion of CT, MR image.

Utilize the reconstruction function of CT, MR image, and the module infusion liquid can be carried out the fusion function of multiple different machine image, for example in the development characteristics of multiple image documentation equipment, CT-MR, CT-PET, MR-PET, CT-MR-DSA etc. have improved the effect of image documentation equipment in the diagnosis of disease process greatly.

Description of drawings:

Fig. 1 is a structure principle chart of the present invention;

Fig. 2 is the cutaway view of transverse cross-sectional profile of the present invention.

Embodiment:

Below in conjunction with accompanying drawing the present invention is described in detail.

This module can be a cuboid, also can be other shape.The volume of module: length * wide * height is about 3cm * 2cm * 1.5cm for well, is preferably made by low-density transparent plastic material.Be provided with vertically pipe (1) and a transverse pipe (2) in module, vertically pipe (1) is crossings on different level with transverse pipe (2), and mutually not vertically; Vertically the two ends of pipe (1) and transverse pipe (2) are closed state, be full of in it have CT, the red liquid of the dual development of MR; Vertically the upright projection of pipe (1) and transverse pipe (2) is provided with corresponding ordinate (3) and horizontal line (4) respectively at module table hand-deliver crunode, and ordinate (3) and horizontal line (4) are two orthogonal reticules on the module surface.

For the ease of the location, ordinate on the surface of module (3) and place, horizontal line (4) cross point are provided with a nib shape knobs (5), this projection (5) preferably has water absorption, be convenient to this projection (5) impression is arranged on skin, or projection (5) go up to be inhaled and to be had dyestuff that impression is become to dye a little, use for the clinical space index point.

On module, an indenture (6) of being convenient to stuck-module is respectively arranged, so that module is fixed on the surface of human body with place, the nearly two ends of boundary, two sides edge.

With cranium brain CT, MR image co-registration is example.When position pendulum on CT and MR scanner unit, utilize indenture on the module (6) that module is fixed in the middle of head two temporo sides and the forehead each one, and the ordinate of module (3) is parallel with people's long axis of body, horizontal line (4) with CT, MR transverse scan markings are parallel and coincidence.Change when scanner unit carries out scanning imagery and needn't change the control point module.CT, MR scanning adopt identical bed thickness (3～4mm) and the visual field (FOV), continuously every continuous sweep.The CT that obtains like this, MR image bed thickness are consistent with amplification, and one deck are only arranged on the intermediate cross-section of three modules, and the transverse pipe on the cross section (2) is shown as bright rectangular tubular (background is a black) on CT, MR image; Three module is vertically managed (1) and only is shown as circular bright spot (7), merges as effective control point of image registration with three bright spots (7), realizes having cranium brain CT, the MR monolayer face image co-registration of module intermediate cross-section sign.Just can obtain people's axon position up and down CT, MR image co-registration of a plurality of aspects (image fusion software possesses automatic fusion function, also can manually) with this aspect as benchmark fusion aspect, thereby reach comprehensive fusion of cranium brain CT, MR image.By the fusion reconstruction and the analysis-by-synthesis of image, determine extent of disease and with the relative tertiary location of projection (5), utilize projection (5) at the impression of human body skin or dye a little, the entity design of the undergo surgery approach and the degree of depth, or the planning of tumour radiotherapy open country etc.Improved the diagnosis and treatment degree of accuracy of disease so greatly.

Claims

1, a kind of CT, MR image amalgamation external controlling point module is characterized in that: be provided with vertically pipe (1) and a transverse pipe (2) in module, vertically pipe (1) is crossings on different level with transverse pipe (2), and vertical mutually; Vertically the two ends of pipe (1) and transverse pipe (2) are closed state, be full of in it have CT, the red liquid of the dual development of MR; Vertically the upright projection of pipe (1) and transverse pipe (2) is provided with corresponding ordinate (3) and horizontal line (4) respectively at module table hand-deliver crunode, and ordinate (3) and horizontal line (4) are two and are vertical crossed lines on the module surface.

2, CT according to claim 1, MR image amalgamation external controlling point module is characterized in that: ordinate on the surface of module (3) and place, horizontal line (4) cross point are provided with a nib shape knobs (5).

3, CT according to claim 1, MR image amalgamation external controlling point module is characterized in that: respectively there is an indenture (6) of being convenient to stuck-module at place, the nearly two ends of top and boundary, the two sides edge of module.

4, according to claim 1,2 described CT, MR image amalgamation external controlling point module, it is characterized in that: the cross-section CT of module, MR scanning can provide the control point (7) on transverse pipe (2) vertical pipe (1) that development indicates.