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Chun-Shan Yam

Publications and source records attributed to Chun-Shan Yam.

At least 19 recordsLinked to original sources

Part I: preparing first-year radiology residents and assessing their readiness for on-call responsibilities.

RATIONALE AND OBJECTIVES: The aim of the study is to evaluate the effectiveness of an Emergency Radiology (ER) Core Curriculum training module and a Digital Imaging and Communications in Medicine (DICOM)-based interactive examination system to prepare first-year (postgraduate year 2 [PGY-2]) radiology residents and assess their readiness for taking overnight radiology call. MATERIALS AND METHODS: Institutional review board approval was obtained, and the study was compliant with Health Insurance Portability and Accountability Act (HIPAA) regulations. A dedicated month-long ER curriculum was designed to prepare new radiology residents for overnight radiology call that includes interpretation of off-hour urgent and emergent studies without immediate direct attending supervision. Lectures of the curriculum, provided by department staff, were based on the American Society of Emergency Radiology core curriculum. The lecture series was implemented after PGY-2 residents had completed formal introductory resident rotations during their first 6 months of training. A DICOM-based interactive computer-based testing module was developed and administered at the end of the lecture series. The module consisted of 19 actual emergency department cases with entire series of images, simulating an on-call setting. Tests were scored by two staff members blinded to resident identifying information. Upper-level residents also were tested, and comparison was made between first-year and upper-level resident test scores to determine the effectiveness of the test in determining first-year resident preparedness for call. Statistical analysis of results was performed by using t-test (P < .05). RESULTS: All residents in the residency program present during the month (nine PGY-2, six PGY-3, seven PGY-4, seven PGY-5 residents) attended the lecture series and finished the testing module at the end of the lecture series. Of 19 actual emergency cases on the testing module, five cases were neuroradiology, three cases were thoracic imaging, eight cases were body imaging, and three cases were musculoskeletal. PGY-2 residents scored an average of 73.0% (range, 63.2%-81.6%) of total points possible. PGY-3 residents scored an average of 76.8% (range, 68.4%-86.8%); PGY-4 residents scored an average of 77.4% (range, 65.8%-100%), and PGY-5 residents scored an average of 81.2% (range, 68.4%-94.7%). There was no statistically significant difference in scores according to level of training. CONCLUSION: First-year radiology residents who underwent 6 months of formal radiology training followed by an intensive ER lecture series before taking overnight call had scores similar to upper-level colleagues on an interactive computer-based ER simulation module.

Curriculum↗

Part II: preparing and assessing first-year radiology resident on-call readiness technical implementation.

RATIONALE AND OBJECTIVES: The effectiveness of using a Digital Imaging and Communications in Medicine (DICOM)-based interactive examination system in evaluating the readiness of first year radiology residents before taking overnight call in the emergency department (ED) was reported in part I of this article. This report describes technical aspects for the design and implementation of this system. MATERIALS AND METHODS: The examination system consists of two modules: Data Collection and Image Viewing. The Data Collection module was a personal computer (PC)-based DICOM storage server based on a free public domain software package, the Mallinckrodt Central Test Node. The Image Viewing module was a Java-based DICOM viewer created using another freeware package: zDicom ActiveX component. RESULTS: The examination takes place once a year at the end of the first 6-month rotation. Cases selected for the examination were actual clinical cases according to the American Society of Emergency Radiology core curriculum. In the 3-hour timed examination, each resident was required to read the cases and provide clinical findings and recommendations. Upper-level residents also participated in the examination to serve as a control. Answers were scored by two staff radiologists. CONCLUSION: We have been using this examination system successfully in our institution since 2003 to evaluate the readiness of the first-year residents before they take overnight call in the ED. This report describes a step-by-step procedure for implementing this system into a PC-based platform. This DICOM viewing software is available as freeware to other academic radiology institutions. The total cost for implementing this system is approximately 2000 US dollars.

Curriculum↗

Preparation of digital movie clips for online journal publication.

OBJECTIVE: This article presents general guidelines for preparing movie clips for online journal publication. CONCLUSION: As more and more radiology journals establish an online presence, radiologists wishing to submit journal articles with movie clips need to understand the electronic submission process. Viewing a movie clip via an online journal is different from viewing one with PowerPoint using a local desktop computer because the movie file must first be downloaded onto the client computer before it can be displayed. Users thus should be cautious in selecting movie format and compression when creating movie clips for online journals. This article provides step-by-step demonstrations and general guidelines for movie format and compression selections.

Internet↗

A solution for using dynamic data sets in electronic presentations.

OBJECTIVE: This article offers a solution for displaying dynamic data sets in PowerPoint for today's electronic presentations using Shockwave Flash software. CONCLUSION: Shockwave Flash is the most recommended file format for presenting dynamic data sets at the annual meetings of radiology societies. Detailed instructions and examples are provided for first-time Flash users who wish to take advantage of this alternative solution for using dynamic data sets with PowerPoint in electronic presentations.

Computer Graphics↗

Using macromedia flash for electronic presentations: a new alternative.

OBJECTIVE: This article provides a step-by-step tutorial for creating electronic presentations using Macromedia Shockwave Flash, one of the recommended file formats for many radiologic society annual meetings, including the American Roentgen Ray Society (ARRS). CONCLUSION: Although Flash and PowerPoint can be used for creating presentation slide shows, Flash is more appropriate for integrating and delivering animations for Internet applications such as radiologic electronic presentations. For this reason, detailed step-by-step instructions for creating Flash slide shows with common features such as text, images, arrows, buttons, movie loops, and transitions are provided. The approach used in this article is particularly appropriate for academic radiologists who have basic PowerPoint skills but lack programming experience.

Computer Graphics↗

Using movie clips in PowerPoint presentations: part 1, compatibility issues.

OBJECTIVE: The purpose of this article is to discuss common compatibility issues relating to the use of movie clips in PowerPoint presentations. CONCLUSION: Our investigations found that successful display of movie clips in PowerPoint depends on the following three factors: movie file format, codec selection, and cross-platform compatibility. These factors primarily result from the rapid change in today's computer operating systems. Based on a compatibility study of common movie clips used in radiology presentations, a general guideline for preparing movie clips is presented. Also, a simple method is described for converting movie clips into compatible movie formats and reducing large movie clips to manageable file sizes to ensure smooth presentation.

Motion Pictures↗

Using movie clips in PowerPoint presentations: part 2, movie editing.

OBJECTIVE: The purpose of this article is to describe a simple method for editing movie clips for PowerPoint presentations. CONCLUSION: We describe a simple method for editing movie clips using Adobe Photoshop, a common software utility used by many radiologists for preparing digital images.

Motion Pictures↗

Removing hidden patient data from digital images in PowerPoint.

OBJECTIVE: The purpose of this article is to discuss the potential issue of exposing patient information from digital images used in PowerPoint presentations. CONCLUSION: Current methods for safeguarding patient information in PowerPoint presentations still contain the potential for risk. In radiology, many digital images used in PowerPoint contain hidden patient identification information. Although cautious use of cropping and masking techniques has been adequate for presentation, the hidden information is still available as part of the digital image and may pose Health Insurance Portability and Account-ability Act (HIPAA) risks. This article will discuss the origin of this issue and describe simple solutions for permanently removing patient information using built-in PowerPoint functions.

Humans↗

Development of a radiology report monitoring system for case tracking.

OBJECTIVE: The objective was to develop an automated system to monitor and collect radiology reports for case-tracking purposes. CONCLUSION: The system we developed allows users to automate the case-tracking process for either clinical follow-up or teaching purposes. With this system, radiologists can initiate the tracking of a case by dictating a keyword into the report. Any existing and future reports associated with the same patient will be collected automatically. The schematic that we developed is based on the Health Level Seven (HL7) standard, which is platform-independent. In our implementation, we used an IBM-compatible computer and commercially available software. Users can monitor the case-tracking progress from Web browsers.

Humans↗

A simple method for displaying cine images on web-based teaching files.

OBJECTIVE: Our objective was to develop a simple method for displaying dynamic cine images on Web-based teaching files. CONCLUSION: We developed a simple method for displaying cine images on Web-based teaching files using an open-source utility, the Java applet. This interactive utility offers improved 3D visualizations compared with the traditional approach using thumbnail and static images. Because Java is a built-in component of common Web browsers and computer systems, no other software was required. We have used this applet successfully for more than 2 years in our Web-based teaching system, including in our teaching files and on our case-of-the-week page.

Computer-Assisted Instruction↗

Projecting PowerPoint presentations with a PDA.

OBJECTIVE: This article describes the use of a personal digital assistant (PDA) as a projection device for PowerPoint presentations. CONCLUSION: Advances in hardware and software have made PDA devices capable of storing, accessing, retrieving, and sharing data, and their use is becoming increasingly evident in the health care arena. In this article, I describe a use for the PDA that will further increase its value and efficiency in daily academic and teaching activities.

Computers, Handheld↗

Using PowerPoint to create high-resolution images for journal publications.

OBJECTIVE: In this article, I describe the essential steps for using PowerPoint to create high-resolution images for radiology journal publications. CONCLUSION: PowerPoint 2003 can be used as an alternative to create high-resolution images for journal publications without the need for other image-processing software.

Audiovisual Aids↗

Use of personal digital assistants in diagnostic radiology resident education.

RATIONALE AND OBJECTIVES: Personal digital assistants (PDAs) are gaining widespread use in the medical community. We introduced a PDA-based mobile system that provides departmental and educational information with a seamless connection to the intranet. The objective of this study is to determine the impact a PDA has on educational resources (learning or data reference) brought to work and used at home by a radiology resident based on user surveys. MATERIALS AND METHODS: Survey was performed on 32 radiology residents in our department before and 6 months after the release of the PDA-based system. We assessed the changes in (1) sources of learning at home and at work, and in (2) data reference. The second survey also evaluated the usefulness of each component of the system. RESULTS: After the release of the PDA-based mobile system, the use of "digital books and references" as data references and educational resources that were brought to work every day significantly increased (P = .016, P < .0001, respectively). "Traditional books and references" remained the "most useful source in learning radiology"; however, "digital books and references" increased as the residents' first choice from 0% to 16% within 6 months of introducing the package (P = .125). CONCLUSION: The introduction of a PDA-based system consisting of educational and departmental information had a statistically significant impact in increasing the use of digitized information in radiology resident education.

Computers, Handheld↗

Comprehensive innovative solution for resident education using the Intranet Journal of Chest Radiology.

RATIONALE AND OBJECTIVES: Because of the rapid increase in clinical workload in academic radiology departments, time for teaching rotating residents is getting more and more limited. As a solution to this problem, we introduced the Intranet Journal of Chest Radiology as a comprehensive innovative tool for assisting resident education. MATERIALS AND METHODS: The Intranet Journal of Chest Radiology is constructed using Microsoft FrontPage version 2002 (Microsoft Corp, Redmond, WA) and is hosted in our departmental web server (Beth Israel Deaconess Medical Center, Boston, MA). The home page of the intranet journal provides access to the main features, "Cases of the Month," "Teaching File," "Selected Articles for Residents," "Lecture Series," and "Current Publications." These features provide quick access to the selected radiology articles, the interesting chest cases, and the lecture series and current publication from the chest section. RESULTS: Our intranet journal has been well utilized for 6 months after its introduction. It enhances residents' interest and motivation to work on case collections, to search and read articles, and to generate interest in research. Frequent updating is necessary for the journal to be kept current, relevant, and well-utilized. CONCLUSION: The intranet journal serves as a comprehensive innovative solution for resident education, providing basic educational resources and opportunities of interactive participation by residents.

Computer Communication Networks↗

A mobile solution: PDA-based platform for radiology information management.

OBJECTIVE: We describe how our radiology department set up, integrated, and deployed a personal digital assistant-based mobile platform to deliver updated critical departmental and educational material to our residents. CONCLUSION: We have implemented and described a robust mobile solution that maintains a seamless connection with the departmental intranet. Resident feedback regarding the use of the mobile solution program has confirmed our belief that using this mobile technology is a feasible and clinically practical alternative for accessing time-sensitive and educational materials. Furthermore, our description can help others deploy such digital products and facilitate the transition to soft copy that is already occurring in radiology education.

Computers, Handheld↗

A simple method for extracting DICOM images from a magnetooptic disk.

OBJECTIVE: Our objective was to develop a simple and easy-to-use method to extract DICOM images from magnetooptic (MO) disks to the computer desktop for research purposes. CONCLUSION: The method we developed allows users to extract DICOM images directly from MO disks to a PC desktop. The hardware component that we used is commercially available and is plug-and-play. The system is lower in cost than a clinical workstation. Users do not need to have special computer skills to use our method. DICOM images can be transferred directly from the MO disks to computer desktop folders using drag-and-drop. In our implementation, we store the DICOM files in a shared folder in our hospital network, so users can access the data from their office or research computers.

Humans↗

A Web-based ACR index for radiological diagnoses.

OBJECTIVE: We created an online computer system that allows radiologists to access the American College of Radiology (ACR) index for radiologic diagnoses from any Web browser. CONCLUSION: A total of 11,260 indexes (10 anatomic, 722 pathologic, 90 subanatomic, and 10,438 subpathologic) were integrated into this online system. Users can navigate the entire ACR hierarchic indexing structure with easy-to-use cascading dropdown lists. This password-protected system also allows free-text searches, ACR index searches, and bookmark functions. We have used this system in our departmental intranet for more than 2 years.

Abstracting and Indexing↗