Browsing by Author "Yagi, Yukako"
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- ItemColor standardization and optimization in whole slide imaging.(2011-04-14) Yagi, YukakoStandardization and validation of the color displayed by digital slides is an important aspect of digital pathology implementation While the most common reason for color variation is the variance in the protocols and practices in the histology lab the color displayed can also be affected by variation in capture parameters for example illumination and filters image processing and display factors in the digital systems themselves
- ItemConsistency and standardization of color in medical imaging: a consensus report.(2015-01-24) Badano, Aldo; Revie, Craig; Casertano, Andrew; Cheng, Wei-Chung; Green, Phil; Kimpe, Tom; Krupinski, Elizabeth; Sisson, Christye; Skrøvseth, Stein; Treanor, Darren; Boynton, Paul; Clunie, David; Flynn, Michael J; Heki, Tatsuo; Hewitt, Stephen; Homma, Hiroyuki; Masia, Andy; Matsui, Takashi; Nagy, Balázs; Nishibori, Masahiro; Penczek, John; Schopf, Thomas; Yagi, Yukako; Yokoi, HidetoThis article summarizes the consensus reached at the Summit on Color in Medical Imaging held at the Food and Drug Administration FDA on May 8 9 2013 co sponsored by the FDA and ICC International Color Consortium The purpose of the meeting was to gather information on how color is currently handled by medical imaging systems to identify areas where there is a need for improvement to define objective requirements and to facilitate consensus development of best practices Participants were asked to identify areas of concern and unmet needs This summary documents the topics that were discussed at the meeting and recommendations that were made by the participants Key areas identified where improvements in color would provide immediate tangible benefits were those of digital microscopy telemedicine medical photography particularly ophthalmic and dental photography and display calibration Work in these and other related areas has been started within several professional groups including the creation of the ICC Medical Imaging Working Group
- ItemDigital imaging in pathology: the case for standardization.(2005-05-19) Yagi, Yukako; Gilbertson, John RThe process of digital imaging in microscopy is a series of operations each contributing to the quality of the final image that is displayed on the computer monitor The operations include sample preparation and staining by histology optical image formation by the microscope digital image sampling by the camera sensor postprocessing and compression transmission across the network and display on the monitor There is an extensive literature about digital imaging and each step of the process is fairly well understood However the complete process is very hard to standardize or even to understand fully The important concepts for pathology imaging standards are 1 systems should be able to share image files 2 the standards should allow the transmission of information on baseline colours and recommended display parameters 3 the images should be useful to the pathologist not necessarily better or worse than direct examination of a slide under the microscope 4 a mechanism to evaluate image quality objectively should be present 5 a mechanism to adjust and correct the minor errors of tissue processing should be developed 6 a public organization should support pathologists in the development of standards
- ItemIP telephony--new horizon for telemedicine and e-health.(2002-07-16) Zhao, Yongguo; Yagi, Yukako; Nakajima, Isao; Juzoji, HiroshiInternet Protocol IP based networks are increasingly being used as alternatives to the traditional circuit switched networks for carrying voice traffic IP telephony is taking a firm hold in the world telecommunication market for a wide range of applications including telemedicine The merits of IP telephony for telemedicine lie in cost savings and new applications and functionalities it may render In this paper we try to discuss and analyze the implications of IP telephony on the evolution and deployment of telemedicine and e health
- ItemTelepathology for intraoperative neuropathologic consultations at an academic medical center: a 5-year report.(2007-09-20) Horbinski, Craig; Fine, Jeffrey L; Medina-Flores, Rafael; Yagi, Yukako; Wiley, Clayton ATelepathology is an attractive solution for providing neuropathologic intraoperative expertise to geographically diverse hospitals from a center of excellence To date few reports specifically address the feasibility of such a system for intraoperative neuropathology specimens The University of Pittsburgh Medical Center is a 20 hospital system in Southwest Pennsylvania in which the pathology department has adopted a subspecialty centers of excellence method of managing cases The Division of Neuropathology is physically located at 1 hospital but provides neuropathologic expertise to the entire system Adult neurosurgery is currently limited to 2 hospitals separated by 18 city blocks We describe our experience in providing remote intraoperative neuropathologic consultations over a 5 year period from 2002 to 2006 Several approaches are discussed with emphasis on the current system and the evolution of imaging technology Diagnostic outcomes are compared among 400 telepathology cases and 1 200 conventional intraoperative cases Current technology is capable of facilitating teleneuropathologic intraoperative diagnoses in a timely manner with accuracy rates comparable to those for conventional methods However the practice of providing these remote consultations requires a sophisticated and technologically advanced environment along with substantial planning communication and training of both pathologists and pathology assistants
- ItemWebcasting pathology department conferences in a geographically distributed medical center.(2004-07-16) Yagi, Yukako; Ahmed, Ishtiaque; Gross, William; Becich, Michael J; Demetris, Anthony J; Wells, Alan; Wiley, Clayton A; Michalopoulos, George K; Yousem, Samuel A; Barnes, Barbara; Gilbertson, John RAs academic pathology departments have become increasingly based in large regional medical systems spread across hundreds of square miles new methods are needed to tie these increasingly distributed departments together as integrated units An important part of that integration is the ability to share academic and teaching conferences across long distances In this article we present an effective low cost webcasting system that has evolved at the University of Pittsburgh Medical Center Department of Pathology over the past several years based on inexpensive widely available software To date the system has broadcast and archived more than 400 conferences and currently serves approximately 80 to 100 requests each week Important factors in the success of the program include the creation of a faculty steering committee to control resources and manage growth the availability of informatics faculty and support for technical staff and the decision to operate the service as part of the core information technology infrastructure of the department Webcasting will likely become an even more important academic and operational tool in the future as more of the department s conferences seminars and even working meetings are communicated through the webcasting infrastructure