Brain atlas using ultra high resolution DTI and SWI

2013 Fiscal Year Final Research Report

• Project/Area Number: 23591765
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Radiation science
• Research Institution: Kyoto University
• Principal Investigator: YAMAMOTO Akira 京都大学, 医学(系)研究科(研究院), 助教 (60525567)
• Co-Investigator(Kenkyū-buntansha): OKADA Tomohisa 京都大学, 医学研究科, 講師 (30321607) ; KANAGAKI Mitsunori 京都大学, 医学研究科, 助教 (50378676)
• Project Period (FY): 2011 – 2013
• Keywords: MRI / 拡散テンソル画像 / 磁化率強調画像 / 位相画像 / 脳微細解剖

Research Abstract

Using 3-T MR with 32-ch head coil, ultra high resolution DTI and SWI were acquired to evaluate the fine inner structure of the optic radiation and cortico-medullary junction. In the optic radiation, inner layer and outer layer showed the different DTI parameters and such findings meet with the previous findings by the anatomical methods. In the cortico-medullary junction, high-pass filtered phase image showed the most prominent contrast to surrounding tissue.

Research Products

• [Journal Article] Diffusion tensor imaging analysis of optic radiation using readout-segmented echo-planar imaging (2014)
  • Author(s): Yamada H, Yamamoto A, Okada T, Kanagaki M, Fushimi Y, Mehemed TM, Porter DA, Togashi K
  • Journal Title: Surg Radiol Anat
• [Journal Article] Fat-water interface on susceptibility-weighted imaging and gradient-echo imaging : comparison of phantoms to intracranial lipomas (2013)
  • Author(s): Mehemed TM, Yamamoto A, Okada T, Kanagaki M, Fushimi Y, Sawada T, Togashi K
  • Journal Title: AJR Am J Roentgenol Volume: 201(4) Pages: 902-7
  • DOI: 10.2214/AJR.12.10049
• [Journal Article] High-pass-filtered phase image : left- versus right-handed MR imaging systems (2013)
  • Author(s): Mehemed TM, Yamamoto A
  • Journal Title: AJNR Am J Neuroradiol Volume: 34(6) (Epub 2013 Mar 28) Pages: E72
  • DOI: 10.3174/ajnr.A3571
• [Journal Article] Reduced-Distortion Diffusion MRI of the Craniovertebral Junction (2012)
  • Author(s): Iima M, Yamamoto A, Brion V, Okada T, Kanagaki M, Togashi K, Le Bihan D
  • Journal Title: AJNR Am J Neuroradiol Volume: 33(7) (Epub 2012 Mar 1) Pages: 1321-5
  • DOI: 10.3174/ajnr.A2969
• [Presentation] 磁化率強調画像における血腫と紛らわしい脂肪腫 (2014)
  • Author(s): 山本憲、Taha M. Mehemed、岡田知久、金柿光憲、伏見育崇、岡田務、富樫かおり
  • Organizer: 第43回日本神経放射線学会
  • Place of Presentation: 米子コンベンションセンター、米子市、鳥取
  • Year and Date: 20140321-23
• [Presentation] Mimics of Hemorrhage on Susceptibility Weighted Imaging (SWI) (2013)
  • Author(s): Taha M. Mehemed, Akira Yamamoto, Tomohisa Okada, Mitsunori Kanagaki,Yasutaka Fushimi, Kaori Togashi
  • Organizer: 99th Annual Meeting of the Radiological Society of North America
  • Place of Presentation: Chicago, IL., USA
  • Year and Date: 20131201-07
• [Presentation] Fat-Water Interface on Susceptibility Weighted Imaging (2013)
  • Author(s): Taha M. Mehemed, Akira Yamamoto, Tomohisa Okada, Mitsunori Kanagaki,Yasutaka Fushimi, Takeshi Sawada, Emiko Morimoto, Kaori Togashi
  • Organizer: 第41回日本磁気共鳴医学会大会
  • Place of Presentation: アスティ徳島、徳島市、徳島
  • Year and Date: 20130919-21
• [Presentation] Diffusion Tensor Imaging Analysis of Optic Radiation by Readout-Segmented Echo-Planar Imaging (2012)
  • Author(s): Hirofumi, Yamada; Akira, Yamamoto; Tomohisa,Okada; Mitsunori,Kanagaki; Seiko, Kasahara;Takeshi, Sawada; Emiko, Morimoto;Ryo, Sakamoto; Sachi, Okuchi; Kaori, Togashi
  • Organizer: International Society for Magnetic Resonance in Medicine(ISMRM) 20th Annual Meeting & Exhibition
  • Place of Presentation: オーストラリア国メルボルン市
  • Year and Date: 20120505-11
• [Presentation] 3T MR diagnosis method of moyamoya disease, using cisternal moyamoya vessels (2012)
  • Author(s): T. Sawada, A. Yamamoto, T. Okada, M. Kanagaki,S. Kasahara, K. Togashi
  • Organizer: KSMRM The 17th Annual Scientific Meeting
  • Place of Presentation: 韓国インチョン市
  • Year and Date: 20120331-0401
• [Presentation] read-out segmented echo-planar imagingを用いた視放線の拡散テンソル画像の改善 (2011)
  • Author(s): 山田浩史、山本憲、岡田知久、金柿光憲、笠原誓子、森本笑子、中島諭、富樫かおり
  • Organizer: 第39回日本磁気共鳴医学会大会
  • Place of Presentation: リーガロイヤルホテル小倉、福岡県
  • Year and Date: 20110929-1001
• [Presentation] High Resolution Distortion-Free Diffusion-Tensor Imaging of Craniovertebral Junction (2011)
  • Author(s): Bihan, Denis; Iima, Mami; Kanagaki, Mitsunori;Kasahara, Seiko; Mehemed, Taha; Morimoto,Emiko; Nakajima, Satoshi; Okada, Tomohisa;Sakamoto, Ryo; Togashi, Kaori; Yamamoto, Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13
• [Presentation] High Resolution Distortion-Free Diffusion-Tensor Imaging of Optic Radiation Using Readout-Segmented Echo-Planar Imaging and a Two-Dimensional Navigator-Based Reacquisition (2011)
  • Author(s): Iima, Mami; Kanagaki, Mitsunori; Kasahara, Seiko; Mehemed, Taha; Morimoto, Emiko; Nakajima,Satoshi; Okada, Tomohisa; Sakamoto, Ryo; Togashi, Kaori; Yamamoto, Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13
• [Presentation] High-Resolution 3D MR Imaging of the Sellar and Parasellar Space Using SPACE at 3.0 T (2011)
  • Author(s): Iima, Mami; Kanagaki, Mitsunori; Kasahara, Seiko;Morimoto, Emiko; Nakajima, Satoshi; Okada,Tomohisa; Sakamoto, Ryo; Togashi, Kaori;Yamamoto, Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13
• [Presentation] High-Resolution Small Field-Of-View 3 Tesla MRI with 32-Channel Head Coil by Appropriately Selected Coil Elements Reconstruction Method (2011)
  • Author(s): Kanagaki, Mitsunori; Kozawa, Satoshi; Okada,Tomohisa; Sakai, Koji; Togashi, Kaori; Yamamoto,Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13
• [Presentation] Meyer's Loop Delineated on Magnitude Images of Susceptibility-Weighted Imaging : Pre- And Postoperative Perimetric Correlation in Patients with Refractory Temporal Lobe Epilepsy (2011)
  • Author(s): Kanagaki, Mitsunori; Kasahara, Seiko;Matsumoto, Riki; Miki, Yukio; Mikuni, Nobuhiro;Mori, Nobuyuki; Morimoto, Emiko; Noma,Satoshi; Okada, Tomohisa; Togashi, Kaori;Yamamoto, Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13
• [Presentation] Reproducibility of Apparent Diffusion Coefficient Values at Hippocampus Measured by High-Resolution Readout-Segmented DWI Vs. Single-Shot DWI with 2DRF Excitations (2011)
  • Author(s): Iima, Mami; Kanagaki, Mitsunori; Kasahara, Seiko;Mehemed, Taha; Morimoto, Emiko; Nakajima,Satoshi; Okada, Tomohisa; Sakamoto, Ryo;Togashi, Kaori; Yamamoto, Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13
• [Presentation] Which to Choose for Volumetry : MPRAGE or SPACE? (2011)
  • Author(s): Iima, Mami; Kanagaki, Mitsunori; Kasahara, Seiko;Mehemed, Taha; Morimoto, Emiko; Nakajima,Satoshi; Okada, Tomohisa; Sakamoto, Ryo;Togashi, Kaori; Yamamoto, Akira
  • Organizer: International Society for Magnetic Resonance in Medicine (ISMRM) 19th Annual Meeting & Exhibition
  • Place of Presentation: カナダ国モントリオール市
  • Year and Date: 20110507-13