Assessment of the signal intensity distribution pattern within the unruptured cerebral aneurysms using color-coded 3D MR angiography

Toru Satoh, Megumi Omi, Chika Ohsako, Atsushi Katsumata, Yusuke Yoshimoto, Shoji Tsuchimoto, Katsuzo Kunishio, Keisuke Onoda, Koji Tokunaga, Kenji Sugiu, Isao Date

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2 Citations (Scopus)

Abstract

To evaluate the interaction between the MR signal intensity distribution pattern and bleb formation/deformation of the aneurysmal dome, fifty cases of the unruptured cerebral aneurysms were investigated with the color-coded 3D MR angiography. Patterns were categorized into central-type, neck-type and peripheral-type according to the distribution of MR signals with low-, moderate- and high signal intensity areas. Imaging analysis revealed the significant relationship (P<0.02) of the peripheral-type aneurysms to the bleb formation and deformation of the dome, compared with those of central- and neck-type. Additionally, peripheral-type signal intensity distribution pattern was shown with aneurysms harboring relatively large dome size and lateral-type growth including internal carotid aneurysms. Prospective analysis of intraaneurysmal flow pattern with the color-coded 3D MR angiography may provide patient-specific analysis of intraaneurysmal flow status in relation to the morphological change of the corresponding aneurysmal dome in the management of unruptured cerebral aneurysms.

Original languageEnglish
Pages (from-to)445-454
Number of pages10
JournalNeurological Surgery
Volume33
Issue number5
Publication statusPublished - May 2005

Keywords

  • Intraaneurysmal flow
  • MR angiography
  • Three-dimensional reconstruction

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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    Satoh, T., Omi, M., Ohsako, C., Katsumata, A., Yoshimoto, Y., Tsuchimoto, S., Kunishio, K., Onoda, K., Tokunaga, K., Sugiu, K., & Date, I. (2005). Assessment of the signal intensity distribution pattern within the unruptured cerebral aneurysms using color-coded 3D MR angiography. Neurological Surgery, 33(5), 445-454.