J Korean Radiol Soc.
1999 Dec;41(6):1051-1055. 10.3348/jkrs.1999.41.6.1051.
Assessment of Spacial Distortion in Digital Subtraction Angiogra phy for Stereotactic Radiosurge ry: An Experimental Study with Phantom
- Affiliations
-
- 1Department of Radiology, Seoul National University College of Medicine, Institute of Radiation Medicine, SNUMRC, Korea. hanmh@radcom.snu.ac.kr
- 2Department of Neurosurgery, Seoul National University College of Medicine, Institute of Radiation Medicine, SNUMRC, Korea.
- KMID: 2200772
- DOI: http://doi.org/10.3348/jkrs.1999.41.6.1051
Abstract
- PURPOSE: In stereotactic radiosurgery, awareness of the precise localization and volumetry of tumors and of critical organs, and the planning of the treatment field are important. The purpose of this study was to determine the degree of distortion in images obtained by digital subtraction angiography(DSA) and to assess whether DSA is a suitable may substitute for MRI in the planning of stereotactic radiosurgery. MATERIALS AND METHODS: After designing DSA phantoms we obtained images under variable conditions and analyzed image distortion using an image analysis program. RESULT: DSA imaging distortion increased as intensifying tube size became greater and the distance between tube and object decreased. CONCLUSION: Images obtained by DSA imaging were very distorted, and in the planning of stereotactic radio-surgery DSA is not, therefore, a suitable substitute for MRI.
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Assessment of Imaging Distortion in Magnetic Resonance Imaging for Stereotactic Radiosurgery: Through Phantom Study
- The study of standard deviation of gray scale histogram in digital subtraction radiography as a test parameter for superimposition error
- Mammography-Guided Interventional Procedure
- A Clinical Significance of lntraarterial Digital Subtraction Angiography in Renal Diseases
- Digital contrast subtraction radiography for proximal caries diagnosis
