2011 Fiscal Year Final Research Report

Dynamic contrast-enhanced MR imaging in the evaluation of vascular malformations and application to treatment.

Research Project

Project/Area Number	21791821
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Pathobiological dentistry/Dental radiology
Research Institution	Tokyo Medical and Dental University
Principal Investigator	KURIBAYASHI Ami 東京医科歯科大学, 大学院・医歯学総合研究科, 助教 (00431932)
Project Period (FY)	2009 – 2011
Keywords	歯科放射線診断学
Research Abstract	Twenty patients with vascular malformations of the head and neck who were examined by MRI were included in this study. Surgery was performed and histopathological diagnosis was obtained in all patients. On MRI examination, DCE-MRI was performed. Time of peak enhancement(T_peak) was determined from the time-signal intensity curves(TICs). MRI findings were then correlated with the histopathological type of vascular malformations. TThe high-flow lesion showed a rapid increase in TICs, whereas low-flow lesions showed a gradual increase. Our results indicate that DCE-MRI is useful in evaluating the flow characteristics of vascular malformations of the head and neck.