Technique for arterial-phase contrast-enhanced three-dimensional MR angiography of the carotid and vertebral arteries

Haruo Isoda, Yasuo Takehara, Satoshi Isogai, Hiroyasu Takeda, Masao Kaneko, Atsushi Nozaki, Yi Sun, Thomas K F Foo

Research output: Contribution to journalArticlepeer-review

Abstract

Our goal was to evaluate whether contrast-enhanced three-dimensional MR angiography using the MR Smartprep technique would enable us to obtain arterial-phase MR angiograms of the carotid and vertebral arteries. The study included 35 patients with suspected lesions of the neck in whom the MR Smartprep technique was used for MR angiography performed with a 1.5-T superconducting system. The tracker volume was placed primarily in the middle part of the right common carotid artery. The imaging volume was placed in a coronal direction to include the carotid and vertebral arteries from the aortic arch to the skull base. A centric phase-ordering scheme was used. Imaging times were 20 to 38 seconds for 14 patients and 11 to 16 seconds for 21 patients. By using a smaller tracker volume and an imaging time of less than 16 seconds, we were able to achieve a 100% successful triggering rate and to delineate selectively arterial-phase carotid and vertebral arteries with almost no venous contamination. Contract-enhanced 3-D MR angiography with the MR Smartprep technique was useful for showing arterial-phase carotid and vertebral arteries selectively.

Original languageEnglish (US)
Pages (from-to)1241-1244
Number of pages4
JournalAmerican Journal of Neuroradiology
Volume19
Issue number7
StatePublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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