Time-Resolved Magnetic Resonance Angiography in the Evaluation of Intracranial Vascular Lesions and Tumors: A Pictorial Essay of Our Experience.
Time-resolved magnetic resonance angiography (TR MRA) is a promising less invasive technique for the diagnosis of intracranial vascular lesions and hypervascular tumors. Similar to 4-dimensional computed tomographic angiography obtaining high frame rate images, TR MRA utilizes acceleration techniques to acquire sequential arterial and venous phase images for identifying, localizing, and classifying vascular lesions. Because of the good agreement with digital subtraction angiography for grading brain arteriovenous malformations with the Spetzler-Martin classification and the good sensitivity for visualizing arteriovenous fistulas, studies have suggested that TR MRA could serve as a screening or routine follow-up tool for diagnosing intracranial vascular disorders. In this pictorial essay, we report on the use of TR MRA at 3.0 T to diagnose intracranial vascular lesions and hypervascular tumors, employing DSA as the reference technique.
Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan.
Ming-Cheng
MC
Liu
Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan.
Hung-Chieh
HC
Chen
Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Radiological Technology, Central Taiwan University of Science and Technology, Taichung, Taiwan. Electronic address: chenhaowu@vghtc.gov.tw.
Chen-Hao
CH
Wu
Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan.
Wen-Hsien
WH
Chen
Department of Neurosurgery, Taichung Veterans General Hospital, Taichung, Taiwan.
Yuang-Seng
YS
Tsuei
Department of Radiology, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Radiological Technology, Central Taiwan University of Science and Technology, Taichung, Taiwan.
Clayton Chi-Chang
CC
Chen
D000293:Adolescent; D000328:Adult; D015901:Angiography, Digital Subtraction / Q000379:methods; D001932:Brain Neoplasms / Q000098:blood supply* / Q000175:diagnosis*; D020216:Carotid-Cavernous Sinus Fistula / Q000175:diagnosis; D020785:Central Nervous System Vascular Malformations / Q000175:diagnosis; D002533:Cerebral Angiography / Q000379:methods*; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D005260:Female; D018325:Hemangioblastoma / Q000175:diagnosis; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D002538:Intracranial Arteriovenous Malformations / Q000175:diagnosis; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D008577:Meningeal Neoplasms / Q000098:blood supply / Q000175:diagnosis; D008579:Meningioma / Q000098:blood supply / Q000175:diagnosis; D008875:Middle Aged; D009072:Moyamoya Disease / Q000175:diagnosis; D012680:Sensitivity and Specificity; D055815:Young Adult
Intracranial hypervascular tumor; Intracranial vascular lesion; Time-resolved magnetic resonance angiography