Improvement of spatial resolution of keyhole effect images

被引：14
作者：
Oesterle, C [1 ]
Hennig, J [1 ]
机构：
[1] Univ Freiburg, Radiol Klin, D-79106 Freiburg, Germany
来源：
MAGNETIC RESONANCE IN MEDICINE | 1998年 / 39卷 / 02期
关键词：
keyhole imaging; spatial resolution; functional MRI;
D O I：
10.1002/mrm.1910390211
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
An algorithm is proposed which improves the spatial resolution of difference or effect images acquired with a keyhole sampling strategy. This new reconstruction algorithm uses a priori information about sharp structures in the observed signal changes from a high resolution reference scan. The potential of this algorithm even being able to deal with noisy effect images is illustrated by application to functional MRI data.
引用
收藏
页码：244 / 250
页数：7
相关论文
共 50 条
  • [11] Improvement in the spatial resolution for imaging with fast neutrons
    Lehmann, E. H.
    Mannes, D.
    Strobl, M.
    Walfort, B.
    Losko, A.
    Schillinger, B.
    Schulz, M.
    Vogel, S. C.
    Schaper, D. C.
    Gautier, D. C.
    Newmark, D.
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2021, 988
  • [12] Improvement on spatial resolution of relief holograms in dichromated gelatin
    Pang, L
    Zhu, JH
    Zeng, YQ
    Xiao, H
    Guo, LR
    HOLOGRAPHIC DISPLAYS AND OPTICAL ELEMENTS II, 1998, 3559 : 60 - 64
  • [13] Effect of spatial-domain pulse width on the resolution of scattering images in ultrasound computed tomography
    Zhang, Qiude
    Liu, Quanquan
    Liu, Zhaohui
    Ding, Mingyue
    Yuchi, Ming
    PHYSICS IN MEDICINE AND BIOLOGY, 2023, 68 (17)
  • [14] Improvement of the spatial resolution of the spatial mapping of metallic coatings by using picosecond LIBS
    Wang, Zhenzhen
    Shen, Sijie
    Arima, Yuta
    Li, Chi
    Zhou, Wangzheng
    Li, Shoujie
    Yan, Junjie
    Deguchi, Yoshihiro
    SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2024, 220
  • [15] Novel method for evaluating spatial resolution of magnetic resonance images
    Takeuchi, Tomokazu
    Hayashi, Norio
    Asai, Yuta
    Kayaoka, Yuka
    Yoshida, Kiichi
    PHYSICAL AND ENGINEERING SCIENCES IN MEDICINE, 2022, 45 (02) : 487 - 496
  • [16] Introducing a Method for Spectral Enrichment of the High Spatial Resolution Images
    Alidoost, Fakhereh
    Mobasheri, Mohammad R.
    Abkar, Ali A.
    PHOTOGRAMMETRIE FERNERKUNDUNG GEOINFORMATION, 2013, (01): : 31 - 41
  • [17] A Hardware Accelerator for Onboard Spatial Resolution Enhancement of Hyperspectral Images
    Viel, Felipe
    Parreira, Wemerson Delcio
    Susin, Altamiro Amadeu
    Zeferino, Cesar Albenes
    IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2021, 18 (10) : 1796 - 1800
  • [18] Novel method for evaluating spatial resolution of magnetic resonance images
    Tomokazu Takeuchi
    Norio Hayashi
    Yuta Asai
    Yuka Kayaoka
    Kiichi Yoshida
    Physical and Engineering Sciences in Medicine, 2022, 45 : 487 - 496
  • [19] Buildings extraction of very high spatial resolution satellite images
    Benali, Abdelali
    Dermeche, Hakima
    Belhadj, Sabrina
    Adnane, Akram
    Hanifi Elhachemi Amar, Reda
    2014 INTERNATIONAL CONFERENCE ON MULTIMEDIA COMPUTING AND SYSTEMS (ICMCS), 2014, : 277 - 282
  • [20] A technique for spatial resolution improvement in helium-beam radiography
    Amato, C.
    Martisikova, M.
    Gehrke, T.
    MEDICAL PHYSICS, 2020, 47 (05) : 2212 - 2221
12345