CN110200657B - B-ultrasonic image focus and focused ultrasound focus calibration device and method - Google Patents
B-ultrasonic image focus and focused ultrasound focus calibration device and method Download PDFInfo
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- CN110200657B CN110200657B CN201910446544.3A CN201910446544A CN110200657B CN 110200657 B CN110200657 B CN 110200657B CN 201910446544 A CN201910446544 A CN 201910446544A CN 110200657 B CN110200657 B CN 110200657B
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- A61B8/58—Testing, adjusting or calibrating the diagnostic device
Abstract
The invention provides a device and a method for calibrating a B-ultrasonic image focus and a focused ultrasonic focus, wherein the device for calibrating the B-ultrasonic image focus comprises a first mounting seat, the first mounting seat comprises a first mounting hole and a first adjusting unit, the first mounting hole is matched with an image probe, and the first adjusting unit is detachably connected with the image probe; the calibration seat comprises an outer cylinder and a positioning needle, the outer cylinder is connected with the first mounting seat, and the position of the image probe corresponds to the position of the positioning needle; shorten calibration time, increase calibration precision, improve calibration efficiency.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a device and a method for calibrating a B ultrasonic image focus and a focused ultrasonic focus.
Background
The high-intensity focused ultrasound treatment technology can form high-intensity continuous ultrasonic energy on the focus by focusing ultrasonic waves, thereby generating transient high-temperature effect, cavitation effect, mechanical effect and acoustic effect, breaking cell membranes and nuclear membranes, solidifying proteins, and selectively causing coagulative necrosis of focus tissues to enable the focus to lose the capabilities of proliferation, infiltration and transfer. The high-intensity focused ultrasound treatment technology has been clinically recognized as a new technology for treating tumors and other diseases, and is widely applied to the treatment of various tumors and non-tumor diseases in clinic.
At present, focused ultrasound equipment generally performs image monitoring under an image view field (B-ultrasound, X-ray and nuclear magnetic resonance), a virtual focus is formed by processing a radiation image in treatment in combination with treatment software, a transducer of the focused ultrasound equipment performs ultrasound output to form a physical focus, the deviation between the virtual focus and the physical focus is called as positioning precision deviation, and the positioning precision deviation is used as an important performance index of the focused ultrasound equipment to influence the safety of treatment. The existing correction method mainly adopts the steps that an image probe is assembled on ray equipment to calibrate the positioning precision, the deviation of the positioning precision is detected in a debugging mode, then adjustment is carried out, and the calibration precision and the calibration efficiency are low.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a device and a method for calibrating a B-mode ultrasound image focus and a focused ultrasound focus, which are used to solve the problem of the prior art that the positioning accuracy deviation of the focused ultrasound is not convenient for calibration.
To achieve the above and other related objects, the present invention provides a B-mode ultrasonic image focus calibration apparatus for calibrating a focus of an image probe, comprising: the first mounting seat comprises a first mounting hole and a first adjusting unit, the first mounting hole is matched with the image probe, and the first adjusting unit is detachably connected with the image probe; the calibration seat comprises an outer cylinder and a positioning needle, the outer cylinder is connected with the first mounting seat, and the position of the image probe corresponds to the position of the positioning needle.
Optionally, the calibration seat further comprises a calibration cavity for loading an ultrasound medium.
Optionally, the first mounting seat further comprises a first sealing unit, and the first sealing unit is matched with the first adjusting unit.
A focused ultrasound focus calibration apparatus for calibrating a focus of focused ultrasound, comprising: a transducer for providing focused ultrasound; the first mounting seat comprises a first mounting hole and a first adjusting unit, the first mounting hole is matched with the image probe, and the first adjusting unit is detachably connected with the image probe; the second mounting seat comprises a second mounting hole and a second adjusting unit, the second mounting hole is matched with the image probe, and the second adjusting unit is detachably connected with the image probe; a substrate on which a focal point of focused ultrasound and a focal point of an imaging probe can be projected.
Optionally, the method includes: the axis of the first mounting hole and the axis of the second mounting hole are coaxially arranged.
Optionally, the method includes: the focused ultrasound focus calibration device further comprises a second sealing unit, and the second sealing unit is arranged between the first mounting seat and the second mounting seat.
The B-ultrasonic image focus calibration method comprises the following steps: providing the B-ultrasonic image focus calibration device; connecting the image probe with the ray equipment, and judging whether the central line of the image field of view is close to the extending direction of the image probe; if so, completing calibration, otherwise, adjusting the first adjusting unit to enable the central line of the image view field to be close to the extending direction of the image probe.
Optionally, determining whether the central line of the image field of view is close to the extending direction of the image probe, specifically: and when the deviation between the central line of the image view field and the extension direction of the image probe is 1mm or less, judging that the central line of the image view field is close to the extension direction of the image probe.
A focused ultrasound focus calibration method, comprising: providing said focused ultrasound focus calibration means; connecting the image probe with the ray equipment, and starting the transducer; acquiring a focus of an image probe and a focus of focused ultrasound on the substrate; judging whether the focus of the focused ultrasound is close to the focus of the image probe or not; if so, completing calibration, otherwise, adjusting a second adjusting unit to enable the focus of the focused ultrasound to be close to the focus of the image probe.
Optionally, the method includes: judging whether the focus of the focused ultrasound is close to the focus of the image probe, specifically: and the deviation between the focus of the focused ultrasound and the focus of the image probe is 2, and when the deviation is less than or equal to 2mm, the focus of the focused ultrasound is judged to be close to the focus of the image probe.
As described above, the apparatus and method for calibrating an image focus and a focused ultrasound focus according to the present invention have the following advantages:
the positions of the image probe and the first mounting seat are adjusted through the first adjusting unit, and then the relative position of the focus of the image probe and the positioning needle is adjusted;
the positions of the transducer and the second mounting seat are adjusted through the second adjusting unit, so that the relative positions of the focus of the ultrasonic and the focus of the image probe are focused;
shorten calibration time, increase calibration precision, improve calibration efficiency.
Drawings
Fig. 1 is a schematic structural diagram of a B-mode ultrasound image focus calibration apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a focused ultrasound focus calibration apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic diagram illustrating a calibration process of the focused ultrasound focus calibration apparatus according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a focus calibration method for B-mode ultrasound imaging according to an embodiment of the present invention.
Fig. 5 is a flowchart of a method for calibrating a focus of focused ultrasound according to an embodiment of the present invention.
Description of reference numerals
1 first regulating unit
2 first mounting base
3 first sealing unit
4 outer cylinder
5 positioning needle
6 image probe
61 median line of image field
7 second sealing unit
8 second mounting base
9 second regulating unit
10 transducer
11 substrate
62 focal point of image probe
101 focus of focused ultrasound
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Please refer to fig. 1 to 5. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated. The structures, proportions, sizes, and other dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the art, and any structural modifications, changes in proportions, or adjustments in size, which do not affect the efficacy and attainment of the same are intended to fall within the scope of the present disclosure. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1, the present invention provides a B-mode ultrasound image focus calibration apparatus, wherein the image field includes fields for image recognition such as B-mode ultrasound, X-ray, and nuclear magnetic resonance, and is used for calibrating the focus of an image probe 6, including: the first mounting base 2 comprises a first mounting hole and a first adjusting unit 1, the first mounting hole is matched with the image probe 6, the axis of the first mounting hole is collinear with the extending direction of the image probe 6, the first adjusting unit 1 is detachably connected with the image probe 6, in the specific implementation process, a plurality of first adjusting units 1 can be arranged, and the relative position of the image probe 6 and the mounting base 2 is adjusted by adjusting the connecting feed degree of the adjusting units 1 and the image probe 6, so that the purpose of calibrating the focal position of the image probe 6 is achieved; the calibration seat comprises an outer barrel 4 and a positioning needle 5, the outer barrel 4 is connected with the first mounting seat 2, the position of the image probe 6 corresponds to the position of the positioning needle 5, in the specific implementation process, the positioning needle 5 can serve as a reference standard for calibrating the image probe 6, the extending direction of the positioning needle 5 can be higher in coaxiality with the axis of the first mounting hole, in the calibration process, the image probe 6 is connected with a ray device, the image probe emits rays, in the view field of the ray device, whether the center line of the image probe 6 corresponds to the position of the positioning needle 5 or not is calibrated, whether the focus of the image probe 6 is eccentric or not is further judged, the calibration efficiency is improved, the precision of the image probe 6 is increased, and the image view field can comprise view fields of X-rays, B-ultrasonic, nuclear magnetic resonance and the like.
In one embodiment, the calibration base further comprises a calibration cavity for loading an ultrasonic medium, wherein the ultrasonic medium such as water is loaded in the calibration cavity, and the definition and the precision of the calibration of the ray device are improved.
In order to improve the assembly accuracy and the calibration accuracy, the first mounting base 2 further comprises a first sealing unit 3, and the first sealing unit 3 is matched with the first adjusting unit 1.
Referring to fig. 2 and 3, a focused ultrasound focus calibration apparatus for calibrating a focus of focused ultrasound includes: a transducer 10 for providing focused ultrasound; the first mounting seat comprises a first mounting hole and a first adjusting unit, the first mounting hole is matched with the image probe, and the first adjusting unit is detachably connected with the image probe; the second mounting seat 8 comprises a second mounting hole and a second adjusting unit 9, the second mounting hole is matched with the image probe, and the second adjusting unit 9 is detachably connected with the image probe; the method comprises the steps that a substrate 11, a focus 101 of focused ultrasound and a focus 62 of an image probe can be projected on the substrate 11, in the implementation process, the image probe is assembled with a first mounting seat, then the image probe is assembled with a second mounting seat, a second mounting seat 8 is installed on a transducer 10, the image probe and the transducer 10 are opened, further the focus 101 of the focused ultrasound and the focus 62 of the image probe can be projected on the substrate 11, a first adjusting unit or a second adjusting unit 9 can be adjusted to enable the focus 101 of the focused ultrasound and the focus 62 of the image probe to coincide, the purpose of correction is achieved, in the specific implementation process, a reference point is determined on the substrate 11, and in the extending direction of the image probe, the first adjusting unit is adjusted in advance to enable the focus 62 of the image probe to coincide with the reference point, then the second adjusting unit 9 is adjusted to enable the focus 101 of the focused ultrasound and the focus 62 of the image probe to coincide, thereby realizing the calibration of the focus 101 of the focused ultrasound and the focus 62 of the image probe.
In order to improve the assembling precision and the calibration precision, the axis of the first mounting hole and the axis of the second mounting hole are coaxially arranged, the focused ultrasonic focus calibration device further comprises a second sealing unit 7, the second sealing unit 7 is arranged between the first mounting seat 2 and the second mounting seat 8, and in order to improve the focusing energy of the transducer 10, an ultrasonic medium, such as water, can be added into the transducer 10.
In another embodiment, a B-mode ultrasound image focus calibration method includes:
s11: providing the B-ultrasonic image focus calibration device;
s21: connecting the image probe with the ray equipment, judging whether the central line of the image view field is close to the extension direction of the image probe or not, in the actual implementation process, setting the contact ratio and setting the deviation range, and when the contact ratio exceeds the deviation range, determining that the contact ratio is an over-tolerance and determining that the central line of the image view field is not close to the extension direction of the image probe;
s31: if so, completing calibration, otherwise, adjusting the first adjusting unit to enable the central line of the image view field to be close to the extending direction of the image probe.
In a specific implementation process, determining whether a central line of an image field of view is close to an extending direction of the image probe specifically includes: the deviation between the central line of the image view field and the extending direction of the image probe is 1, when 1 is less than or equal to 2mm, in some specific implementation processes, different deviations can be set according to different requirements on visual precision, for example, 1 is less than or equal to 1.5mm, or 1 is less than or equal to 1mm, and the central line of the image view field is determined to be close to the extending direction of the image probe.
In other embodiments, a focused ultrasound focus calibration method includes:
s12: providing said focused ultrasound focus calibration means; connecting the image probe with the ray equipment, and starting the transducer;
s22: acquiring a focus of an image probe and a focus of focused ultrasound on the substrate; judging whether the focus of the focused ultrasound is close to the focus of the image probe or not;
s32: if so, completing calibration, otherwise, adjusting a second adjusting unit to enable the focus of the image probe to be close to the focus of the focused ultrasound.
In a specific implementation process, determining whether a focus of the focused ultrasound is close to a focus of the image probe specifically includes: the deviation between the focus of the focused ultrasound and the focus of the image probe is 2, when 2mm or less than 3mm, in the specific implementation process, different deviations are set according to different requirements on the precision, for example, 2mm or less than 2mm, or 2mm or less than 1.5mm, or 2mm or less than 1mm, and the focus of the focused ultrasound is judged to be close to the focus of the image probe.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
- A B-mode ultrasound image focus calibration apparatus for calibrating a focus of an image field of view, comprising:the first mounting seat comprises a first mounting hole and a first adjusting unit, the first mounting hole is matched with the image probe, and the first adjusting unit is detachably connected with the image probe;the calibration seat comprises an outer cylinder and a positioning needle, the outer cylinder is connected with the first mounting seat, and the position of the image probe corresponds to the position of the positioning needle.
- 2. The B-mode ultrasound image focus calibration apparatus according to claim 1, wherein the calibration mount further comprises a calibration cavity for loading an ultrasound medium.
- 3. The B-mode ultrasound image focus calibration apparatus according to claim 1 or 2, wherein the first mounting seat further comprises a first sealing unit, and the first sealing unit is matched with the first adjusting unit.
- 4. A focused ultrasound focus calibration apparatus for calibrating a focus of focused ultrasound, comprising:a transducer for providing focused ultrasound;the first mounting seat comprises a first mounting hole and a first adjusting unit, the first mounting hole is matched with the image probe, and the first adjusting unit is detachably connected with the image probe;the second mounting seat comprises a second mounting hole and a second adjusting unit, the second mounting hole is matched with the image probe, and the second adjusting unit is detachably connected with the image probe;a substrate on which a focal point of focused ultrasound and a focal point of an imaging probe can be projected.
- 5. The focused ultrasound focus calibration apparatus according to claim 4, comprising: the axis of the first mounting hole and the axis of the second mounting hole are coaxially arranged.
- 6. The focused ultrasound focus calibration apparatus according to claim 4 or 5, comprising: the focused ultrasound focus calibration device further comprises a second sealing unit, and the second sealing unit is arranged between the first mounting seat and the second mounting seat.
- The method for calibrating the focus of the B-ultrasonic image is characterized by comprising the following steps:providing the B-mode ultrasound image focus calibration device according to any one of claims 1 to 3;connecting an image probe with ray equipment, judging whether the central line of an image view field is close to the extension direction of the image probe, setting the contact ratio and setting a deviation range, and determining that the central line of the image view field is not close to the extension direction of the image probe when the contact ratio exceeds the deviation range; if so, completing calibration, otherwise, adjusting the first adjusting unit to enable the central line of the image view field to be close to the extending direction of the image probe.
- 8. The method for calibrating a focus of a B-mode ultrasound image according to claim 7, wherein determining whether the centerline of the image field of view and the extending direction of the image probe are close to each other is specifically: and when the deviation between the central line of the image view field and the extension direction of the image probe is 1mm or less, judging that the central line of the image view field is close to the extension direction of the image probe.
- 9. A method for calibrating a focus of focused ultrasound, comprising:providing a focused ultrasound focus calibration apparatus as claimed in any one of claims 4 to 6;connecting the image probe with a ray device, and starting the transducer;acquiring a focus of an image probe and a focus of focused ultrasound on the substrate;judging whether the focus of the focused ultrasound is close to the focus of the image probe or not;if so, completing calibration, otherwise, adjusting a second adjusting unit to enable the focus of the image probe to be close to the focus of the focused ultrasound.
- 10. The method of focused ultrasound focus calibration according to claim 9, comprising: judging whether the focus of the focused ultrasound is close to the focus of the image probe, specifically: and the deviation between the focus of the focused ultrasound and the focus of the image probe is 2, and when the deviation is less than or equal to 2mm, the focus of the focused ultrasound is judged to be close to the focus of the image probe.
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| SE520858C2 (en) * | 2002-01-15 | 2003-09-02 | Ultrazonix Dnt Ab | Device with both therapeutic and diagnostic sensors for non-invasive ultrasound treatment of an object |
| US9420988B2 (en) * | 2007-12-21 | 2016-08-23 | Koninklijke Philips Electronics N.V. | Systems and methods for tracking and guiding high intensity focused ultrasound beams |
| WO2014133210A1 (en) * | 2013-02-28 | 2014-09-04 | 알피니언메디칼시스템 주식회사 | Method for confirming location of focal point, and ultrasonic medical apparatus therefor |
| US20190030375A1 (en) * | 2017-02-23 | 2019-01-31 | Oron Zachar | Transcranial ultrasound focusing |
| CN108634984B (en) * | 2018-04-20 | 2021-11-30 | 李辉 | B-ultrasonic probe with puncture function |
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| CN1076376A (en) * | 1992-01-21 | 1993-09-22 | 艾达普国际公司 | Aligning human organs is so that method for the treatment of and device |
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| CN101032410A (en) * | 2007-04-13 | 2007-09-12 | 滨州医学院 | Focal property detecting device of X-ray tube and using method thereof |
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