Establishment of a new noninvasive evaluation method of head and neck vascular malformation

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K11068
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• 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): 2015-04-01 – 2018-03-31
• Keywords: ASL / 頭頚部 / 血管奇形

Outline of Final Research Achievements

n this study, we have investigated a non-invasive perfusion image using the ASL method for evaluation of vascular malformation of head and neck. FAIR (flow sensitive alternating inversion recovery) was obtained in this study, and we optimized the imaging method of ASL of the head and neck region for healthy volunteers. Subsequently, we analyzed the provided data and calculated the blood flow from the signal difference (ΔM) of the magnetization of the lesion. However, it was difficult to provide the useful threshold for differentiation of high-flow lesion and low-flow lesion. This result was mainly due to the inappropriate ROI placement caused by the motion artefacts; this indicates a need for an improved
further sequence and increase the cases with sufficient image quality.

Free Research Field

放射線診断学