Image correlation of MRI and CT in treatment planning for radiosurgery of intracranial vascular malformations

Mark H. Phillips, Marc Kessler, Frank Chuang, Kenneth A. Frankel, John T. Lyman, Jacob I. Fabrikant, Richard P. Levy

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Magnetic resonance imaging (MRI) has been incorporated with stereotactic cerebral angiography and computed tomography (CT) in the treatment planning process of heavy ion radiosurgery of intracranial arteriovenous malformations (AVM's). Correlation of the images of the AVM and normal tissue on each of these neuroradiological imaging modalities is achieved by means of fiducial markers. The computerized transfer of angiographic information to the CT images regarding the size, shape, and location of the abnormal vasculature has been described in an earlier report. A separate computer program calculates a fit between individual fiducial markers on the CT and MR images that enables the transfer of contours between the two imaging modalities. The MR images aid in the determination of the 3-dimensional shape of the AVM, adding to the information derived from the two angiographic projections. Currently, MRI cannot replace cerebral angiography in delineating the entire arterial phase of the AVM. Magnetic resonance imaging is invaluable in the treatment planning of angiographically-occult AVM's, determining the location, size, and shape of the volume to be treated. Correlation of the CT and MRI images allows for the transfer of CT-calculated isodose contours to the MRI images to aid in the determination of optimal treatment plans.

Original languageEnglish (US)
Pages (from-to)881-889
Number of pages9
JournalInternational Journal of Radiation Oncology, Biology, Physics
Volume20
Issue number4
DOIs
StatePublished - 1991
Externally publishedYes

Fingerprint

Vascular Malformations
Radiosurgery
magnetic resonance
planning
tomography
Arteriovenous Malformations
Tomography
Magnetic Resonance Imaging
Fiducial Markers
Cerebral Angiography
angiography
markers
Therapeutics
Intracranial Arteriovenous Malformations
Heavy Ions
heavy ions
Software
projection
computer programs

Keywords

  • AVM
  • Charged particles
  • Magnetic resonance
  • Stereotactic radiosurgery
  • Treatment planning

ASJC Scopus subject areas

  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Radiation

Cite this

Image correlation of MRI and CT in treatment planning for radiosurgery of intracranial vascular malformations. / Phillips, Mark H.; Kessler, Marc; Chuang, Frank; Frankel, Kenneth A.; Lyman, John T.; Fabrikant, Jacob I.; Levy, Richard P.

In: International Journal of Radiation Oncology, Biology, Physics, Vol. 20, No. 4, 1991, p. 881-889.

Research output: Contribution to journalArticle

Phillips, Mark H. ; Kessler, Marc ; Chuang, Frank ; Frankel, Kenneth A. ; Lyman, John T. ; Fabrikant, Jacob I. ; Levy, Richard P. / Image correlation of MRI and CT in treatment planning for radiosurgery of intracranial vascular malformations. In: International Journal of Radiation Oncology, Biology, Physics. 1991 ; Vol. 20, No. 4. pp. 881-889.
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