CN110604551A - DSA and OCT data synchronous acquisition method and device - Google Patents
DSA and OCT data synchronous acquisition method and device Download PDFInfo
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- CN110604551A CN110604551A CN201910954743.5A CN201910954743A CN110604551A CN 110604551 A CN110604551 A CN 110604551A CN 201910954743 A CN201910954743 A CN 201910954743A CN 110604551 A CN110604551 A CN 110604551A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 title claims description 8
- 238000012014 optical coherence tomography Methods 0.000 claims abstract description 84
- 230000004927 fusion Effects 0.000 claims abstract description 5
- 210000004204 blood vessel Anatomy 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 238000003384 imaging method Methods 0.000 description 8
- 238000003745 diagnosis Methods 0.000 description 7
- 238000013146 percutaneous coronary intervention Methods 0.000 description 7
- 238000002608 intravascular ultrasound Methods 0.000 description 6
- 208000029078 coronary artery disease Diseases 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 208000004476 Acute Coronary Syndrome Diseases 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 208000002330 Congenital Heart Defects Diseases 0.000 description 1
- 206010057469 Vascular stenosis Diseases 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 206010003119 arrhythmia Diseases 0.000 description 1
- 230000006793 arrhythmia Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013132 cardiothoracic surgery Methods 0.000 description 1
- 208000028831 congenital heart disease Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 238000004393 prognosis Methods 0.000 description 1
- 230000000250 revascularization Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 201000011531 vascular cancer Diseases 0.000 description 1
- 208000019553 vascular disease Diseases 0.000 description 1
- 206010055031 vascular neoplasm Diseases 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
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
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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
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/02007—Evaluating blood vessel condition, e.g. elasticity, compliance
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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
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4417—Constructional features of apparatus for radiation diagnosis related to combined acquisition of different diagnostic modalities
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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
- A61B6/504—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 blood vessels, e.g. by angiography
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Abstract
A method and a device for synchronously acquiring DSA (digital Signal acquisition) and OCT (optical coherence tomography) data are characterized in that one path of display signals of a DSA display is sent into an image acquisition card of an OCT (optical coherence tomography) device, the DSA signal acquisition is started while OCT data are acquired, the DSA data acquisition is stopped while the OCT data acquisition is stopped, the DSA data and the OCT data are synchronously acquired, image data support is provided for subsequent fusion of image positioning, and therefore the accuracy of an OCT image is improved. The invention uses the OCT acquisition point and the stopping point as trigger signals, and can achieve complete synchronization. The video signal input into the display by the DSA is collected by adopting the image acquisition card, so that the DSA system is compatible with any DSA system, and the problem of data format compatibility does not exist.
Description
Technical Field
The invention relates to an image processing technology, in particular to a blood vessel image processing technology, and specifically relates to a DSA and OCT data synchronous acquisition method and device for improving OCT image accuracy by fusing DSA and OCT technologies.
Background
At present, an intravascular tomographic imaging system is designed to be used for imaging blood vessels with the diameter larger than 1.5mm by matching with an imaging catheter, so that the diameter and the area of the lumen are accurately measured, the vessel wall and the structure of the intravascular implant are imaged, and then the plaque property is distinguished and the intravascular implant (a stent, a filter, a spring ring and the like) is evaluated.
The intravascular tomographic imaging system is a system based on the combination of an intravascular Optical Coherence Tomography (OCT) technology and an imaging catheter, and the OCT technology is a new intracoronary imaging technology that appears after intravascular ultrasound (IVUS), and compared with IVUS, the extremely high resolution of OCT makes it increasingly interesting for evaluating vulnerable plaque, guiding stent implantation, and especially for Acute Coronary Syndrome (ACS) diagnosis and treatment.
In 2011, the american society of cardiology/american heart association (ACCF/AHA) Coronary Intervention guideline recommended levels for IVUS in Percutaneous Coronary Intervention (PCI) were IIa, while those for OCT were not established due to insufficient evidence of evidence-based medicine. In 2012, the CLI-OPCI study showed that OCT-directed PCI treatment could significantly improve patient prognosis compared to the plain contrast-directed PCI treatment. Subsequently, OCT was classified as a grade IIb recommendation (grade B evidence level) for assessing lesion characteristics and optimizing the stent implantation procedure in the 2013 european cardiology society for stable coronary heart disease management guidelines, with a global evidence level equivalent to IVUS. In 2014, the recommendation level of OCT for optimizing PCI was elevated to a level IIa recommendation equivalent to IVUS in the european society of cardiology/european association of cardiothoracic surgery (ESC/EACTS) myocardial revascularization guideline. The ILUMIEN I study published in 2015 showed that OCT examinations performed before and/or after PCI could affect the intervention strategy of the surgeon. The ILUMIEN II study results show that OCT is not inferior to IVUS in guiding stent expansion. With the continuous update of the OCT technology and the publication of more prospective research data, the position of OCT in the field of coronary heart disease interventional diagnosis and treatment is certainly to be further promoted.
Digital Subtraction Angiography (DSA) is short for DSA, namely, an angiographic image is digitally processed, an unnecessary tissue image is deleted, and only a blood vessel image is reserved. Is mainly suitable for the examination and treatment of systemic vascular diseases and tumors. The DSA is used for interventional therapyCardiovascular diseasesOpens up a new field for diagnosis and treatment. Is mainly applied to the diagnosis and treatment of coronary heart disease, arrhythmia, valvular disease and congenital heart disease. DSA can perform positioning measurement of vascular stenosis for diagnosis and interventional therapyLifting deviceProvides real stereo images, provides necessary conditions for various interventional therapies, and is the golden standard of PCI surgery.
The OCT technique can acquire an accurate image of the inside of a blood vessel, but cannot determine the position and shape of the inside of the blood vessel, and the amount of information is insufficient, and the DSA technique can acquire the shape of the blood vessel but cannot accurately determine the plaque inside the blood vessel. How to exert the advantages of the two is the key for further improving the diagnosis of the blood vessel.
Disclosure of Invention
The invention aims to solve the problem that the existing DSA and OCT technologies are in conflict with each other and cannot give full play to respective characteristics so as to improve the blood vessel diagnosis level.
One of the technical schemes of the invention is as follows:
a DSA and OCT data synchronous acquisition method is characterized in that a display signal of a DSA display is sent to an image acquisition card of OCT equipment all the way, the DSA signal acquisition is started while OCT data is acquired, the DSA data acquisition is stopped while the OCT data acquisition is stopped, the DSA data and OCT data synchronous acquisition is realized, and image data support is provided for subsequent fusion of image positioning, so that the accuracy of OCT images is improved, and more accurate image information is provided for doctors.
The second technical scheme of the invention is as follows:
a DSA and OCT data synchronous acquisition device is characterized by comprising an OCT engine, a computer host with an image acquisition card, an OCT motion controller and a catheter, wherein the OCT engine controls the OCT motion controller, the OCT motion controller drives the catheter to move to acquire image information, the image acquisition card is simultaneously connected with an image input signal of a DSA display to synchronously acquire image data of DSA equipment, and the OCT image data and the DSA image data are synchronously input into the computer host to be reconstructed, so that form information and intravascular information at the OCT image acquisition position are acquired.
The invention has the beneficial effects that:
the OCT acquisition point and the stopping point are used as trigger signals, and complete synchronization can be achieved.
The video signal input into the display by the DSA is collected by adopting the image acquisition card, so that the DSA system is compatible with any DSA system, and the problem of data format compatibility does not exist.
Drawings
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
The first embodiment.
A method for synchronously acquiring DSA (digital subscriber line) and OCT (optical coherence tomography) data is characterized in that a display signal of a DSA display is sent into an image acquisition card of an OCT (optical coherence tomography) device all the way, the DSA signal acquisition is started while OCT data are acquired, the DSA data acquisition is stopped while the OCT data acquisition is stopped, the DSA data and the OCT data are synchronously acquired, image data support is provided for the subsequent fusion of image positioning, and therefore the accuracy of an OCT image is improved.
Example two.
As shown in fig. 1.
A DSA and OCT data synchronous acquisition device comprises an OCT engine, a computer host with an image acquisition card, an OCT motion controller, a catheter and control software, wherein the OCT engine controls the OCT motion controller, the OCT motion controller drives the catheter to move to acquire image information, the image acquisition card is connected with an image input signal of a DSA display at the same time to synchronously acquire image data of DSA equipment, and the OCT image data and the DSA image data are synchronously input into the computer host to be reconstructed, so that morphological information and intravascular information at the position where the OCT image is acquired are acquired. The OCT engine is a section where OCT signals are generated; an OCT motion controller controls the motion of the imaging catheter; the imaging catheter is connected with the OCT system and enters a human body to collect signals; and a computer in the OCT system is responsible for signal reconstruction and system control. In order to synchronously acquire DSA (digital image capture) and OCT (optical coherence tomography) data, an image capture card is integrated on a computer in an OCT system, an input signal of a DSA display is divided into two parts, one part of the input signal is input into the image capture card, the image capture card is started at the moment of acquiring the OCT signal to acquire the DSA image, and the DSA data acquisition is stopped when the OCT data acquisition is finished. Thus, the DSA data and the OCT data are synchronously acquired. And subsequent image positioning and fusion are facilitated.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (2)
1. A method for synchronously acquiring DSA (digital subscriber line) and OCT (optical coherence tomography) data is characterized in that a display signal of a DSA display is sent into an image acquisition card of an OCT (optical coherence tomography) device, the DSA signal acquisition is started while OCT data are acquired, the DSA data acquisition is stopped while the OCT data acquisition is stopped, the DSA data and the OCT data are synchronously acquired, image data support is provided for subsequent image positioning fusion, and therefore the accuracy of an OCT image is improved.
2. A DSA and OCT data synchronous acquisition device is characterized by comprising an OCT engine, a computer host with an image acquisition card, an OCT motion controller and a catheter, wherein the OCT engine controls the OCT motion controller, the OCT motion controller drives the catheter and the catheter to move to acquire image information, the image acquisition card is connected with an image input signal of a DSA display to synchronously acquire image data of DSA equipment, and the OCT image data and the DSA image data are synchronously input into the computer host to be reconstructed, so that the form and intravascular information at the position where the OCT image is acquired are acquired.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111784720A (en) * | 2020-06-19 | 2020-10-16 | 天津大学 | DSA and IVOCT blood vessel image fusion method |
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| US20130281832A1 (en) * | 2012-04-24 | 2013-10-24 | John Baumgart | System for Coregistration of Optical Coherence Tomography and Angiographic X-ray Image Data |
| CN107847135A (en) * | 2015-05-17 | 2018-03-27 | 光学实验室成像公司 | Intravascular imaging system interface and support detection method |
| US20180192983A1 (en) * | 2013-03-12 | 2018-07-12 | Lightlab Imaging, Inc. | Vascular Data Processing and Image Registration Systems, Methods, and Apparatuses |
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2019
- 2019-10-09 CN CN201910954743.5A patent/CN110604551A/en active Pending
Patent Citations (4)
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| US20110071405A1 (en) * | 2009-09-23 | 2011-03-24 | Lightlab Imaging, Inc. | Apparatus, Systems, and Methods of in-vivo Blood Clearing in a Lumen |
| US20130281832A1 (en) * | 2012-04-24 | 2013-10-24 | John Baumgart | System for Coregistration of Optical Coherence Tomography and Angiographic X-ray Image Data |
| US20180192983A1 (en) * | 2013-03-12 | 2018-07-12 | Lightlab Imaging, Inc. | Vascular Data Processing and Image Registration Systems, Methods, and Apparatuses |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111784720A (en) * | 2020-06-19 | 2020-10-16 | 天津大学 | DSA and IVOCT blood vessel image fusion method |
| CN111784720B (en) * | 2020-06-19 | 2023-02-28 | 天津大学 | DSA and IVOCT blood vessel image fusion method |
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