1,205 resources related to Biopsy
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The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted papers will be peer reviewed. Accepted high quality papers will be presented in oral and postersessions, will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE
AMC2020 is the 16th in a series of biennial international workshops on Advanced Motion Control which aims to bring together researchers from both academia and industry and to promote omnipresent motion control technologies and applications.
2020 IEEE 17th International Symposium on Biomedical Imaging (ISBI 2020)
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 2020 will be the 17th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2020 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.
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 2020, the 27th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.
The International Conference on Robotics and Automation (ICRA) is the IEEE Robotics and Automation Society’s biggest conference and one of the leading international forums for robotics researchers to present their work.
The IEEE Reviews in Biomedical Engineering will review the state-of-the-art and trends in the emerging field of biomedical engineering. This includes scholarly works, ranging from historic and modern development in biomedical engineering to the life sciences and medicine enabled by technologies covered by the various IEEE societies.
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.
IEEE Computer Graphics and Applications (CG&A) bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a strong combination of peer-reviewed feature articles and refereed departments, including news and product announcements. Special Applications sidebars relate research stories to commercial development. Cover stories focus on creative applications of the technology by an artist or ...
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.
Both general and technical articles on current technologies and methods used in biomedical and clinical engineering; societal implications of medical technologies; current news items; book reviews; patent descriptions; and correspondence. Special interest departments, students, law, clinical engineering, ethics, new products, society news, historical features and government.
OFC/NFOEC Technical Digest. Optical Fiber Communication Conference, 2005., 2005
IEEE Spectrum, 2009
Researchers at Johns Hopkins University have developed 700-micrometer metallic grippers that can be remotely triggered to clench.
IEEE/ASME Transactions on Mechatronics, 2015
This paper introduces a novel tissue stabilization device for magnetic resonance imaging (MRI)-guided breast biopsy. The device is comprised of two pneumatically actuated support plates that would stabilize the biopsy target movements during needle insertion. An optimized geometry for the support plates allows for a good degree of tissue stabilization without relying on large compression forces. The plate configuration can ...
2018 IEEE International Conference on Robotics and Biomimetics (ROBIO), 2018
MRI guided breast biopsy surgery is essential for the diagnosis and treatment of female breast diseases. It has great significance to research on the MRI- compatible breast biopsy robot, which can assist doctors to perform a breast biopsy surgery precisely in a narrow space of MRI scanner. In this paper, a novel MRI guided breast biopsy robot based on double ...
2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2013
The main purpose of this study was to develop a method that can optimize the algorithm for puncture point calculation, and therefore improve the accuracy of X-ray guided breast biopsy. The proposed method is: first, select two guiding points; then, use the guiding points to construct X-ray cone-beams, so the joining section of the cone-beams can be used to determine ...
Researchers at Johns Hopkins University have developed 700-micrometer metallic grippers that can be remotely triggered to clench.
This paper introduces a novel tissue stabilization device for magnetic resonance imaging (MRI)-guided breast biopsy. The device is comprised of two pneumatically actuated support plates that would stabilize the biopsy target movements during needle insertion. An optimized geometry for the support plates allows for a good degree of tissue stabilization without relying on large compression forces. The plate configuration can also be adjusted inside the magnet bore using pneumatic actuators driven by pressure-controlled valves that are placed in the MRI control room. This capability allows for the compensation of the target displacement based on MRI image feedback. When combined with a separate needle drive mechanism, this stabilization device would enable in-bore MRI-guided breast biopsy. Experiments performed on chicken breast tissue with a prototype of the device demonstrate the effectiveness of this mechanism in increasing needle targeting accuracy using two simple error correction strategies. Furthermore, MRI compatibility tests are carried out to assess the performance of the device inside MRI.
MRI guided breast biopsy surgery is essential for the diagnosis and treatment of female breast diseases. It has great significance to research on the MRI- compatible breast biopsy robot, which can assist doctors to perform a breast biopsy surgery precisely in a narrow space of MRI scanner. In this paper, a novel MRI guided breast biopsy robot based on double shear fork mechanism is designed. The MRI compatibility and design requirements of breast biopsy robot are analyzed, and the structure design as well as space layout scheme for breast biopsy robot are proposed. The encircling breast fixation device, positioning mechanism based on double shear fork mechanism and biopsy mechanism are designed, and the virtual prototype model of breast biopsy robot is established. Besides, forward kinematics and inverse kinematics of the breast biopsy robot are analyzed, then the positioning mechanism based on double shear fork mechanism is analyzed by ANSYS/Workbench. Finally, the workspace range of the breast biopsy robot is solved by MATLAB/Simulink, which further verified the feasibility and rationality of the structure design of breast biopsy robot based on double shear fork mechanism.
The main purpose of this study was to develop a method that can optimize the algorithm for puncture point calculation, and therefore improve the accuracy of X-ray guided breast biopsy. The proposed method is: first, select two guiding points; then, use the guiding points to construct X-ray cone-beams, so the joining section of the cone-beams can be used to determine the puncture target point. The method was verified by a phantom emulation, in which the calculated target-points were all found within the central part of the target lesion, and far away from the boarder of the lesion (change the X-ray tube angle by 15° would only cause a slight deviation no more than 1.4 mm), the accuracy is enough to fulfill the needs of biopsy operation. This study also found out that, the shorter the distance between the guiding point and the center of the lesion's project, the nearer the calculated biopsy-point will be to the actual lesion center.
Nowadays, breast cancer is the most common female cancer worldwide. The widely use of mammogram and ultrasound (US) increases the possibility to detect the nonpalpable lesions. Core needle biopsy (CNB) under US guidance for the lesions detected on US is the procedure of choice to retrieve tissue for histopathologic study, resulting in appropriate treatment planning. This procedure requires skill and experience of radiologist in order to obtain the sufficient tissue for accurate histopathologic diagnosis. Our new breast biopsy guidance system comprises of a passive robotic needle and its graphical user interfaces: GUI on MATLAB and 3D Slicer interface based on real-time data from optical tracking system. The passive robot consists of 5 DOFs; the first and the second DOFs are for translation curvature, the third and fourth DOFs are for rotation motions, and the fifth DOF is for needle insertion. The robot is designed based on breast features, and its movements are based on friction method. The robot has high tensile strength and good impact resistance due to Polyoxymethylene (POM) or Polyacetal is used as its material. The experimental results have shown very high success rates to perform simulated breast biopsy, and the robot can increase the accuracy and proficiency of needle insertion.
A three-dimensional array of single-crystalline silicon microspikes with protruded barbs is developed for microscale biopsy. The developed microbiopsy tool is designed to replace the conventional endoscopic biopsy tool and to reduce patient discomfort and risk during the endoscopic operation. For fabrication we extend the SBM (Sacrificial Bulk Micromachining) process and apply the SBM process to both sides of the wafer. Shanks of the fabricated 3D microspikes are 1.5 mm long, 150 /spl mu/m thick and 150 /spl mu/m wide. The developed microbiopsy tools are evaluated in-vivo experiment by extracting tissues from live anesthetized rabbits and examining the tissue with the hematoxylin and eosin (H&E) staining protocol. In addition, the clinical test of extracting gastric adenocarcinoma tissue samples is also performed. The 3D microspikes successfully extracted tissue samples from the small intestines of the anesthetized rabbits and gastric adenocarcinoma tissue. The evaluation reveals that the biopsy with the 3D microspike can be applied to the medical examination.
T2-weighted magnetic resonance images (MRI) imaging using an endorectal coil combined with a pelvic phased-array coil has been shown to provide high resolution images of the prostate. To integrate MRI analysis in standard prostate biopsy procedures, preoperative MRI must be accurately registered to 3-D transrectal ultrasound (TRUS) images. Shape changes due to patient motion, or drugs can induce further differences in glandular shape variation between preoperative MRI and 3-D TRUS during biopsy. In the proposed work, we model the deformation relating MRI and TRUS so as to enable analysis of MRI in conjunction with ultrasound (color blended or side-by-side) for planning of biopsy targets. Registration of MRI at various resolutions and endorectal balloon volumes and ultrasound volumes yielded average fiducial registration error of 3.06 mm using 6 and 12 bead phantoms.
Normal and cancerous tissues have distinct autofluorescence lifetime because of their biophysical and biochemical differences. Protoporphyrin IX (PplX) is a useful fluorophore, which generally accumulates more in cancerous cells than in normal cells due to heme synthesis pathway, is often employed in photodynamic detection and therapy. Under 410nm excitation, the main emission peak of PplX is at 630nm. Autofluorescence lifetime at 630nm emission would be elongated if PplX gathered more in cells. In this study, we tried to find if there exist significant differences of autofluorescence lifetime at 630nm (under 410nm excitation) between normal and cancerous tissues for in vivo measurement. The result shows that normal tissues in general have shorter lifetime (about 2.8/spl sim/3.5 ns) than that of abnormal tissues. The measured data suggest that lifetime would get longer in accordance with the degree of carcinogenesis. For cancer tissues, the average autofluorescence lifetime was extended to be about 10ns. Furthermore, the efficiency of treatment could also be defined refer to the time-series of lifetime decline.
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