Magnetic resonance angiography with midsagittal saturation for the assessment of blood flow from superficial temporal artery-to-middle cerebral artery bypass

Toshiaki Akashi, Toshiaki Taoka, Toshiteru Miyasaka, Kaoru Myochin, Masahiko Sakamoto, Katsutoshi Takayama, Hiroyuki Nakagawa, Kimihiko Kichikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Objective: The purpose of this study was to evaluate the feasibility of magnetic resonance angiography (MRA) with midsagittal saturation for depiction of superficial temporal artery-to-middle cerebral artery bypass flow. Methods: Eleven patients undergoing bypass surgery in 13 regions were examined by external carotid artery angiography (ECAG) and 3-dimensional time-of-flight MRA with saturation pulse applied to the midsagittal plane covering the internal carotid arteries. We classified the extent of visualization of bypass flow into 4 types and examined the agreement of findings between them. Results: The MRA revealed types of bypass flow in agreement with those observed on ECAG in 10 of the 13 regions. The MRA underestimated bypass flow in 2 regions and overestimated it in 1 region. Conclusions: The MRA with midsagittal saturation demonstrated bypass flow in agreement with ECAG in most cases. Application of MRA with midsagittal saturation permits noninvasive assessment of physiological flow from superficial temporal artery-to-middle cerebral artery bypass for a postoperative follow-up.

Original languageEnglish
Pages (from-to)89-92
Number of pages4
JournalJournal of Computer Assisted Tomography
Volume34
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1

Keywords

  • MRA
  • STA-MCA bypass
  • Saturation

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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