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Development of high-sensitive synchrotron x-ray micro CT

Research Project

Project/Area Number 12307018
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Radiation science
Research InstitutionUniversity ot Tsukuba

Principal Investigator

ITAI Yuji  University of Tsukuba, Institute of Clinical Medicine, Professor, 臨床医学系, 教授 (30010268)

Co-Investigator(Kenkyū-buntansha) AKATSUKA Takao  Yamagata University, Faculty of Engineering, Professor, 工学部, 教授 (80091875)
TAKEDA Tohoru  University of Tsukuba, Institute of Clinical Medicine, Assistant Professor, 臨床医学系, 講師 (10197311)
Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2001: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
KeywordsFluorescent x-ray / Computed tomography / Specific element / Diagnostic radiology / Micro imaging / Synchrotron radiation / Functional imaging
Research Abstract

Fluorescent x-ray technique is used to evaluate very low contents of specific elements in the order of picograms, however the measurement must be performed in the surface of object. Then for biological sample, the specimen is required to be cut into thin slices and scanned with a beam perpendicular to its surface. Fluorescent x-ray computed tomography (FXCT) have being developed to reveal the distribution of inner element of object without specific preparation. Especially by positioning the x-ray detector at 90°to the beam, the linear polarization of synchrotron x-rays (SR) helps to significantly reduce the Compton scattering overlapping the Kcc line and thus improving the minimal detectability of elements. Using a Ge detector with high efficiency and high count-rate capability, FXCT was implemented with high spatial resolution in the order of tens of micrometers.
FXCT was applied to depict the cross sectional distribution of iodine in the thyroid gland, in vitro, at the spatial resolution of 0.1mm x 0.1 mm with 0.1-mm slice thickness or of 0.025 mm x 0.025 mm with 0.025 mm slice thickness. FXCT with synchrotron radiation could clearly visualize the 0.005 mg/ml iodine solution in the 10-mm diameter 3-hole phantom at 0.1 x 0.1 mmz spatial resolution with 0.1mm slice thickness. Observation of the 0.005 mg/ml iodine solution indicated that the excited iodine content in the measured voxel is about 5 pg. In the thyroid cancer, FXCT revealed that a part of cancer had high content of iodine, whereas another part had low content of iodine. It varied wide ranges from 0.09 mg/g to 0.005 mg/g. Experimental ring (AR) for FXCT was improved this spring, so high spatial resolution images with 0.005mm is planned to obtain using this new system. , '

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] Tohoru Takeda: "Newtypes of x-ray computed tomography with synchrotron radiation : fluorescent x-ray CT and phase-contrast x-ray CT with interferometer"Cellular & Molecular Biology. 46. 1077-1088 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tohoru Takeda: "Biomedical imaging by fluorescent x-ray micro-computed tomography"JSBB. (in press).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tohoru Takeda: "Medical imaging by Fluorescent x-ray CT : its preliminary clinical evaluation"SPIE. 4503. 299-309 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tohoru Takeda: "Iodine imaging in thyroid by fluorescent x-ray CT with 0.05mm spatial resolution"Nuclear Instruments and Method in Physics Research. A467-468. 1318-1321 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Quanwen Yu: "Preliminary experiment of fluerescent x-ray computed tomography to detect dual agents for biomedical study"J. Synchrotron Radiation. 8. 1030-1034 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tsutomu Zeniya: "Integrated image presentation of transmission and fluorescent x-ray CT using synchrotron radiation"Nuclear Instruments and Method in Physics Research. A467-468. 1326-1328 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tohoru Takeda: "Progress in Pathology Volume 5"Greenwich Medical Media Ltd. UK. 194 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeda T, Momose A, Yu Q, Yuasa T, Dilmanian FA, Akatsuka T, Itai Y: "New types of x-ray computed tomography with synchrotron radiation : fluorescent x-ray CT and phase-contrast x-ray CT with interferometer"Cellular & Molecular Biology. 46. 1077-1088 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeda T, Zeniya T, Wu J, Yu Q, Thet-Thet-Lwin, Tsushiya Y, D. V. Rao, Yuasa T, Yashiro T, Dilmanian FA, Itai Y, Akatsuka T: "Medical imaging by fluorescent x-ray CT: Its preliminary clinical evaluation"SPIE. 4503. 299-309 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeda T, Yu Q, Yashiro T, Zeniya T, Wu J, Hasegawa Y, Thet-Thet-Lwin, Hypdo K, Yuasa T, Dilmanian FA, Akatsuka T, Itai Y: "Iodine imaging in thyroid by fluorescent x-ray CT with 0.05mm spatial resolution"Nuclear Instruments and Method in Physics Research A. 467-468. 1318-1321 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Zeniya T TakedaT, Yu Q, Hasegawa Y, Hyodo K, Yuasa T, Hiranaka Y, Itai Y, Akatsuka T: "Integrated image presentation of transmission and fluorescent x-ray CT using synchrotron radiation"Nuclear Instruments and Method in Physics Research A. 467-468. 1326-1328 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yu Q, Takeda T, Yuasa T, Hasegawa Y, Jin W, Thet-Thet-Lwin, Hyodo K, Dilmanian FA, Itai Y, Akatsuka T: "Preliminary experiment of fluorescent x-ray computed tomography to detect dual agents for biomedical study"J. Synchrotron Radiation. 8. 1030-1034 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] TakedaT, Momose A, Wu J, Zeniya T, Yu Q,: "Phase-contrast x-ray computed tomography of non-formalin fixed biological objects"Nuclear Instruments and Method in Physics Research A. 467-468. 1322-1325 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeda T, ZeniyaT, Wu J, Thet-Thet-Lwin, Yu Q, Tsuchiya Y, Yashiro T, Yuasa T, D V Rao, Hyodo K, Dilmanian F A, Itai Y, Akatsuka T: "Biomedical imaging by fluorescent x-ray micro-computed tomography"JSBB. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] TakedaT, Itai Y: "X-ray micro-computed tomography using synchrotron radiation"Editedby Kirkham N, Lemoine NR, Progress in Pathology p81-102, 2001UK.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tohoru Takeda: "Biomedical imaging by fluorescent x-ray micro-computed tomography"JSBB. in press.

    • Related Report
      2001 Annual Research Report
  • [Publications] Quawen Yu: "Preliminary experiment of fluorescent x-ray computed tomography to detect dual agents for biomedical study"J.Synchrotron Radiation. 8. 1030-1034 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tsutomu Zeniya: "Integrated image presentation of transmission and fluorescent x-ray CT using Synchrotron radiation"Nuclear Instruments and Method in Physics Research. A 467-468. 1326-1328 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tohoru Takeda: "Iodine imaging in thyroid by fluorescent x-ray CT with 0.05mm spatial resolution"Nuckear Instruments and Method in Physics Research. A 467-468. 1318-1321 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tohoru Takeda: "Medical imaging by Fluorescent x-ray XT: Its preliminary clinical evaluation"SPIE. 4503. 299-309 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 武田 徹: "種々の物理原理を用いた新しい放射光のイメージング"断層映像研究会雑誌. 28. 69-(23)-78-(32) (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tohoru Takeda: "Progress in Pathology Volume 5"Greenwich Medical Media Ltd.UK. 194 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tohoru Takeda: "New types of x-ray computed tomography with synchrotron radiation : fluorescent x-ray CT and phase-contrast x-ray CT with interferometer."Cellular & Molecular Biology. 46. 1077-1088 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 于全文: "放射光蛍光X線CT装置を用いた生体内極微量元素描出に関する基礎検討"Medical Imaging Technology. 18. 805-816 (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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