Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yu, C. Apuzzo, M.L.J. Chi-Shing Zee Luxton, G. Petrovich, Z. |
| Copyright Year | 2000 |
| Description | Author affiliation: Dept. of Radiat. Oncology, Univ. of Southern California, Los Angeles, CA, USA (Yu, C.) |
| Abstract | Stereotactic radiosurgery is based on the precise definition of intracranial target in relation to an extracranial reference system. A special plexiglas phantom for both magnetic resonance imaging (MRI) and computed tomography (CT) was built to test the spatial accuracy of MR images using the Leksell stereotactic head frame and localizer system. The phantom was constructed in a shape of cube, 164 mm in each dimension, with three perpendicular arrays of solid plaxiglas rod, 5 mm (3/16 inch) in diameter and spaced 30 mm apart within the phantom. In this study, both MRI and CT images were taken under the same Leksell head frame placement. The deviations of the intraphantom rod positions were determined by using fused image data sets from two MRI scanners and a CT scanner. For the Siemens MR scanner (Symphony, 1.5 T), mean differences of the coordinates in the rod position were 0.5 mm (range: 0.0 to 1.5 mm), 0.6 mm (range: 0.0 to 1.5 mm), and 0.3 mm (range: 0.0 to 1.0 mm) for the x, y and z coordinates of the Leksell stereotactic system, respectively. For the Philips MR scanner (Gyroscan, 1.5 T), mean differences were very similar to that of the Siemens. Least distortion appears in the middle of the phantom or the head frame system while most distortion appears around the periphery, MR images from these particular MR scanners have similar quality. The overall mean distortion is under 1 mm. |
| Starting Page | 2699 |
| Ending Page | 2702 |
| File Size | 371543 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780364651 |
| ISSN | 1094687X |
| DOI | 10.1109/IEMBS.2000.901418 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-07-23 |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Magnetic resonance imaging Computed tomography Imaging phantoms Magnetic heads Shape Solids Lesions Magnetic susceptibility System testing Angiography |
| Content Type | Text |
| Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|