Angiography

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Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers. (Wikipedia.org)






Conferences related to Angiography

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2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

Ferroelectric materials and applications


2019 41st Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC)

The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore


2019 IEEE 16th International Symposium on Biomedical Imaging (ISBI)

The IEEE International Symposium on Biomedical Imaging (ISBI) is the premier forum for the presentation of technological advances in theoretical and applied biomedical imaging.ISBI 2019 will be the 16th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2019 meeting will continue this tradition of fostering cross fertilization among different imaging communities and contributing to an integrative approach to biomedical imaging across all scales of observation.


2019 IEEE 58th Conference on Decision and Control (CDC)

The CDC is recognized as the premier scientific and engineering conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, systems and control, and related areas.The 58th CDC will feature contributed and invited papers, as well as workshops and may include tutorial sessions.The IEEE CDC is hosted by the IEEE Control Systems Society (CSS) in cooperation with the Society for Industrial and Applied Mathematics (SIAM), the Institute for Operations Research and the Management Sciences (INFORMS), the Japanese Society for Instrument and Control Engineers (SICE), and the European Union Control Association (EUCA).


2019 IEEE International Conference on Image Processing (ICIP)

The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2019, the 26th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.


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Periodicals related to Angiography

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Antennas and Propagation, IEEE Transactions on

Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.


Biomedical Circuits and Systems, IEEE Transactions on

The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...


Biomedical Engineering, IEEE Transactions on

Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.


Computer

Computer, the flagship publication of the IEEE Computer Society, publishes peer-reviewed technical content that covers all aspects of computer science, computer engineering, technology, and applications. Computer is a resource that practitioners, researchers, and managers can rely on to provide timely information about current research developments, trends, best practices, and changes in the profession.


Control Systems Technology, IEEE Transactions on

Serves as a compendium for papers on the technological advances in control engineering and as an archival publication which will bridge the gap between theory and practice. Papers will highlight the latest knowledge, exploratory developments, and practical applications in all aspects of the technology needed to implement control systems from analysis and design through simulation and hardware.


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Most published Xplore authors for Angiography

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Xplore Articles related to Angiography

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Three-dimensional reconstruction of implanted aortic stents using computed tomography

Computers in Cardiology 1995, 1995

Patients with infrarenal atherosclerotic obstructions were examined by spiral- CT before and after stent implantation. This CT data was segmented and the vessel structures as well as the stent were reconstructed. The visualization using the AVS software allows a fast and comfortable manipulation and display of the calculated 3D objects. Even the integration of the original CT data and animations ...


MPRS: Medipix parallel readout system for angiography digital imaging

IEEE Transactions on Nuclear Science, 2003

A fast readout system for the Medipix2 pixel chip has been developed for digital angiography applications to allow real time X-ray imaging of contrast media flowing in blood vessels. The readout system is designed to acquire data coming from the 32-bit Medipix2 parallel port of a maximum of eight chips at a rate of 25 frames per second. The readout ...


Improving left ventricular border recognition using probability surfaces

Proceedings. Computers in Cardiology 1988, 1988

The authors present a method for automating the generation of search targets used in finding borders of the left ventricle (LV) from digital-subtraction angiography (DSA) images and thus further automating LV-border determination. This method uses a large clinical database of LV borders to generate a probability surface of expected border locations. A composite image of all observed border points is ...


Motion-compensated iterative sparse data reconstruction for interventional 3-D coronary artery imaging

2008 IEEE Nuclear Science Symposium Conference Record, 2008

Three-dimensional (3-D) reconstruction of the coronary arteries from a rotational X-ray angiography sequence can support diagnosis of coronary artery disease, treatment planning, and intervention guidance during catheter interventions. 3-D reconstruction enables quantitative vessel analysis, including vessel dynamics from a time-series of reconstructions. This contribution presents a method for reconstructing coronary arteries with high contrast and high level of detail. It ...


Applications of the median filter to digital radiographic images

ICASSP '84. IEEE International Conference on Acoustics, Speech, and Signal Processing, 1984

It is well known that Digital Subtraction Angiography (DSA) images suffer from the influence of noise. Linear filters have been applied to DSA images with some success but are known to introduce image degradation. It is particularly important that edge details be preserved in DSA images since the outline of vessels frequently contains the diagnostically useful information. The non- linear ...


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Educational Resources on Angiography

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IEEE-USA E-Books

  • Three-dimensional reconstruction of implanted aortic stents using computed tomography

    Patients with infrarenal atherosclerotic obstructions were examined by spiral- CT before and after stent implantation. This CT data was segmented and the vessel structures as well as the stent were reconstructed. The visualization using the AVS software allows a fast and comfortable manipulation and display of the calculated 3D objects. Even the integration of the original CT data and animations are possible. These 3D reconstructions enable the accurate assessment of the vessel and stent geometry, the stent location relative to stenosis, dissection, plaque or calcification and help to identify potential stent displacements. Thus, spiral-CT has become a comparative and competitive modality to conventional angiography in the pre-interventional planning and control of stent placement.

  • MPRS: Medipix parallel readout system for angiography digital imaging

    A fast readout system for the Medipix2 pixel chip has been developed for digital angiography applications to allow real time X-ray imaging of contrast media flowing in blood vessels. The readout system is designed to acquire data coming from the 32-bit Medipix2 parallel port of a maximum of eight chips at a rate of 25 frames per second. The readout electronics is peripheral component interconnect (PCI) bus-based and consists of two boards: the motherboard directly interfacing the chip for settings and data flow and the PCI board linking the motherboard to the bus. With parallel readout, a transfer rate of up to 64 MByte/s has been achieved.

  • Improving left ventricular border recognition using probability surfaces

    The authors present a method for automating the generation of search targets used in finding borders of the left ventricle (LV) from digital-subtraction angiography (DSA) images and thus further automating LV-border determination. This method uses a large clinical database of LV borders to generate a probability surface of expected border locations. A composite image of all observed border points is used to create a set of extraction lines that is overlaid on the LV of interest. Border points are found by using a dynamic search on the density matrix formed by extracting pixel values at the points defined by the extraction matrix. User interaction is only needed to define the valve plane, confirm the final border, and make corrections if needed. LV contours then be used to find end-diastole and end-systole volume and ejection fraction.<<ETX>>

  • Motion-compensated iterative sparse data reconstruction for interventional 3-D coronary artery imaging

    Three-dimensional (3-D) reconstruction of the coronary arteries from a rotational X-ray angiography sequence can support diagnosis of coronary artery disease, treatment planning, and intervention guidance during catheter interventions. 3-D reconstruction enables quantitative vessel analysis, including vessel dynamics from a time-series of reconstructions. This contribution presents a method for reconstructing coronary arteries with high contrast and high level of detail. It employs an iterative reconstruction algorithm in combination with projection-based motion compensation. An efficient implementation using a graphics processing unit delivers reconstruction times close to clinically acceptable values. Reconstructions from clinical human cases, acquired on an interventional C-arm system, are presented. Excellent image quality is achieved.

  • Applications of the median filter to digital radiographic images

    It is well known that Digital Subtraction Angiography (DSA) images suffer from the influence of noise. Linear filters have been applied to DSA images with some success but are known to introduce image degradation. It is particularly important that edge details be preserved in DSA images since the outline of vessels frequently contains the diagnostically useful information. The non- linear median filter possesses the property of removing spurious noise while preserving edge detail in an image. In the work presented here the difficulties of applying a median filter in two dimensions to the cartesian matrix of a typical image are investigated. The development of a suitable noise-added test image for this purpose is presented.

  • Computer simulation of blood flow using short te magnetic resonance angiography

    Using computer simulation of pulsatile blood flow and magnetic resonance angiography (MRA), we investigated the hemodynamic factors leading to the formation and evolution of 1) atherosclerotic plaque in carotid arteries, and 2) aneurysms in the abdominal aorta. Phantom and patients were imaged by MRA, color Doppler and/or digital subtraction angiography (DSA). Computer modelling was carried out by finite element analysis to solve the Navier-Stokes equation. In the analyzed vessels, voxels representing pathology were digitally removed. Local wall shear stress and pressure were also calculated as a function of a cardiac cycle. There was general agreement between MRA, color Doppler, DSA and computer simulation in both phantom and in-vivo experiments. In MRA, the best results were achieved by short TE, thin slice 2D “time-of-flight” technique, which was least susceptible to the changes in velocity profiles, and best correlated with Doppler and computer simulation. The hemodynamic information obtained from analyzed carotid arteries predicted that during late systole, flow separation exists at the exact locations from where the plaque voxels were removed. We were also able to predict the location of abdominal aortic aneurysm and its evolution toward the distal vessel intima. In conclusion, MRA accurately depicted flow disturbances, and computer simulation of blood flow proved to be a good predictor of the development of vascular pathology.

  • Weighted Local Variance-Based Edge Detection and Its Application to Vascular Segmentation in Magnetic Resonance Angiography

    Accurate detection of vessel boundaries is particularly important for a precise extraction of vasculatures in magnetic resonance angiography (MRA). In this paper, we propose the use of weighted local variance (WLV)-based edge detection scheme for vessel boundary detection in MRA. The proposed method is robust against changes of intensity contrast of edges and capable of giving high detection responses on low contrast edges. These robustness and capabilities are essential for detecting the boundaries of vessels in low contrast regions of images, which can contain intensity inhomogeneity, such as bias field, interferences induced from other tissues, or fluctuation of the speed related vessel intensity. The performance of the WLV-based edge detection scheme is studied and shown to be able to return strong and consistent detection responses on low contrast edges in the experiments. The proposed edge detection scheme can be embedded naturally in the active contour models for vascular segmentation. The WLV-based vascular segmentation method is tested using MRA image volumes. It is experimentally shown that the WLV- based edge detection approach can achieve high-quality segmentation of vasculatures in MRA images.

  • Comparative study of MSCTA with DSA in the blood supply of meningiomas

    Evaluation of multi-slice CT angiography (MSCTA) and digital subtraction angiography (DSA) was made through the comparison of the two methods in the detection of the blood supply of meningiomas, providing further clues for improved application of MSCTA and DSA in the blood supply of meningiomas. MSCTA is more advantageous in the depiction of three-dimensional relationships between the tumor and peripheral vessels and skull. And, compared to DSA, MSCTA is noninvasive, faster and cheaper.

  • Region Growing within Level Set Framework: 3-D Image Segmentation

    We present a novel level set framework combined with seeded region growing algorithm for the automatic segmentation of complicated structures from volumetric medical images. Level set evolution methods combine global smoothness with the flexibility of topology changes and offer significant advantages over conventional statistical classification while region growing algorithms provide pretty fast classification inside the target regions. The driving application is the segmentation of 3D human cerebrovascular structures from magnetic resonance angiography (MRA), which is known to be a very challenging segmentation problem due to the complexity of vessels geometry and intensity patterns. The results demonstrate the potential of our approach. This framework should also be suitable for other 3D image segmentation that the region of interest to be segmented has a relatively large size in width, height or both

  • The implementation of the evaluation system of major equipment procurement in a medical institution

    This paper presents the evaluation system of major equipment procurement in a medical institution. It provides the integrated resources for the hospital chief administrator and staff about need motivation and background, situation analysis, estimated production capacity, profit, payback period, and related costs. Most importantly, the conclusions and suggestions from this medical institution point of view could be shown. Through this platform the head of institutional decision-making may consent to purchase them or not. Besides, the system can also indicate the availability rate about medical equipment after arriving the institution during some periods. The results show the feasibility to evaluate the performance of instruments, especially in expensive modalities such as CT, Angiography X-ray machines and Ultrasounds. By means of the evaluation system, the medical personnel can facilitate the supervision and management of instruments and equipment as well, and further create the value of significant assets in the medical institution.



Standards related to Angiography

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Jobs related to Angiography

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