Influence of the compliance of the neck arteries and veins on the measurement of intracranial volume change by phase-contrast MRI

Rong Wen Tain, Birgit Ertl-Wagner, Noam Alperin

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Purpose: To assess the influence of arterial and venous vascular compliances in the neck region on the measurement of the change in intracranial volume during the cardiac cycle. Materials and Methods: Arterial and venous blood flows were imaged by MRI phase contrast at two different locations, one close to the skull base (upper) and one 2-3 cm lower, around C3 level (lower). Maximal intracranial volume change (ICVC) measurements were derived from the momentary difference between the arterial inflow and venous outflow rates at the upper and lower locations separately to assess the influence of the compliances of the vessel segments bounded by the two different imaging locations. Imaging location for the craniospinal cerebrospinal fluid flow was a constant variable in this experiment. Results: The systolic ICVC obtained using the lower location was consistently larger than when using the upper location. Comparison between arterial and venous flow dynamics revealed a much larger changes in flow dynamic and lumen areas in the veins compared with the arteries, which explain the large venous influence on the intracranial volume change measurement. Conclusion: Arterial inflow and venous outflow should be sampled at a level close to the skull base (C1-C2) to minimize the influence of the compliance of arteries and the collapsibility of veins for a reliable measurement of ICVC.

Original languageEnglish (US)
Pages (from-to)878-883
Number of pages6
JournalJournal of Magnetic Resonance Imaging
Volume30
Issue number4
DOIs
StatePublished - Oct 2009

Keywords

  • Cerebral arterial inflow and venous outflow
  • Intracranial volume change
  • Phase contrast magnetic resonance imaging
  • Vascular compliance

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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