Non-Contrast Time-resolved Magnetic Resonance Angiography Combining High Resolution Multiple Phase Echo Planar Imaging Based Signal Targeting and Alternating Radiofrequency Contrast Inherent Inflow Enhanced Multi Phase Angiography Combining Spatial Resolution Echo Planar Imaging Based Signal Targeting and Alternating Radiofrequency in Intracranial Arteries

• Published in: Japanese Journal of Radiological Technology Vol. 68; no. 11; pp. 1525 - 1532
• Main Authors: Nakamura, Masanobu, Yoneyama, Masami, Tabuchi, Takashi, Takemura, Atsushi, Obara, Makoto, Sawano, Seishi
• Format: Journal Article
• Language: English; Japanese
• Published: Japan Japanese Society of Radiological Technology 2012
• Subjects: Adult; Angiography; arterial spin labeling; Arteries; Cerebral Arteries - anatomy & histology; Cerebral Arteries - physiology; Cerebral Arteries - physiopathology; Cerebrovascular Circulation; Cerebrovascular Disorders - diagnosis; Cerebrovascular Disorders - physiopathology; contrast inherent inflow enhanced multi phase angiography; Female; Humans; Image Enhancement - methods; Imaging; Inflow; Magnetic resonance; Magnetic Resonance Angiography - instrumentation; Magnetic Resonance Angiography - methods; Male; non-contrast magnetic resonance angiography; Radiofrequency; signal targeting and alternating radiofrequency; Spatial resolution; time-resolved magnetic resonance angiography
• ISSN: 0369-4305; 1881-4883
• DOI: 10.6009/jjrt.2012_JSRT_68.11.1525

Detailed information on anatomy and hemodynamics in cerebrovascular disorders such as AVM and Moyamoya disease is mandatory for defined diagnosis and treatment planning. Arterial spin labeling technique has come to be applied to magnetic resonance angiography (MRA) and perfusion imaging in recent years. However, those non-contrast techniques are mostly limited to single frame images. Recently we have proposed a non-contrast time-resolved MRA technique termed contrast inherent inflow enhanced multi phase angiography combining spatial resolution echo planar imaging based signal targeting and alternating radiofrequency (CINEMA-STAR). CINEMA-STAR can extract the blood flow in the major intracranial arteries at an interval of 70 ms and thus permits us to observe vascular construction in full by preparing MIP images of axial acquisitions with high spatial resolution. This preliminary study demonstrates the usefulness of the CINEMA-STAR technique in evaluating the cerebral vasculature.