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Detection of calcium by the nanosecond time-gated spectroscopy of plume in laser ablation of biological tissue and its application to clinical diagnoses

Research Project

Project/Area Number 11480256
Research Category

Grant-in-Aid for Scientific Research (B).

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biological material science
Research InstitutionOsaka University

Principal Investigator

HARUNA Masamitsu  Osaka University, Faculty of Medicine, Professor, 医学部, 教授 (20029333)

Co-Investigator(Kenkyū-buntansha) OHMI Masato  Osaka University, Faculty of Medicine, Research Associate, 医学部, 助手 (60273645)
MORIMOTO Shigeto  Osaka University, Graduate School of Medicine, Assistant Professor, 大学院・医学系研究科, 助教授 (20150336)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥8,100,000 (Direct Cost: ¥8,100,000)
Fiscal Year 2000: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1999: ¥5,800,000 (Direct Cost: ¥5,800,000)
KeywordsLaser ablation of biological tissue / Nanosecond time-gated spectroscopy / Monitor of daily Ca intake / Optical coherence tomography (OCT) / high-resolution OCT / Micrometer-scale optical diagnoses and surgeries / カルシウム検出 / 骨粗鬆症診断 / 光バイオプシ
Research Abstract

We proposed nanosecond time-gated spectroscopy of plume in laser ablation of biological tissue, and suggested that this specific spectroscopy is useful for screening of osteoporosis and daily monitoring of Ca intake. On the basis of the research results, we have proposed micrometer-scale optical diagnoses and surgeries including effective diagnosis and removal of calcified malignant tumors.
(1) We proposed the nanosecond time-gated spectroscopy of plume in tissue ablation. A prototype of spectroscopy system was developed to perform highly sensitive detection of calcium.
(2) The Ca peak intensity was measured for several tens of hair samples of female over a wide range of age from infant to 90 years old. The Ca peak intensity became maximum around 15 years old, and then it decreased gradually. On the other hand, we did not recognize such a drastic change of the Ca peak intensity with age for male hairs.
(3) It was found that there was a good relation of the Ca peak intensity and the measur … More ed value of bone mineral density with the dual-energy X-ray absorptiometry (DEXA), showing that our specific spectroscopy is applicable for screening of osteoporosis.
(4) Ca detection was made for nail of rats with normal diet and Ca-deficient diet. Remarkable reduction of the Ca peak intensity was found for the Ca-deficient rats after ten-weeks old. On the contrary, there was no remarkable change of the Ca peak intensity of nail for ovariectomized rats, compared to that of control rats. This result suggested that our method is useful for monitor of daily Ca intake.
(5) A new type of optical diagnosis and surgery with micrometer scale was proposed by combination of tissue ablation and optical coherence tomography (OCT), including measurement of Ca distribution along the skin depth and remove of calcified malignant tumor with the spatial resolution of the order of μm.
(6) In the experiment, we measured Ca distribution along the radius for rat femur.
(7) In order to improve the spatial resolution, high-resolution OCT of 1.3μm was successfully demonstrated using a ultra-low coherence interferometer where a halogen lamp was used as the light source. Less

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (69 results)

All Other

All Publications (69 results)

  • [Publications] 近江雅人: "低コヒーレンス光干渉による生体組織の屈折率と厚さ測定"医用電子と生体工学. Vol.37,No.1. 78-84 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hideki Maruyama: "A practical measurement system for determination of refractive index and thickness using the low coherence interferometry"1999 Int'l Conf.Opt.Eng.for Sensing and Nanotech.(ICOSN'99). Vol.3740. 26-29 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Mitsuo Nakamura: "Time-gated spectroscopic study of laser-ablation plume of biological tissue"The 3rd Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR'99), Tech.Digest. Vol.1. 45-46 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Low coherence interferometry for simultaneous measurement of refractive index and thickness"The 3rd Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR'99), Tech.Digest. Vol.1. 64-65 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 井上将吾: "超低コヒーレンス光干渉による膜の屈折率と厚さ同時測定"応用物理学会・光波センシング技術研究会. LST24-14. 87-94 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 春名正光: "医療分野における光断層画像:低コヒーレンス光干渉による断層像検出を中心として"O plus E. Vol.21,No.7. 800-808 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Detection of phase transition of a biological membrane by precise refractive-index measurement based on the low coherence interferometry"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.3915. 188-193 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Calcium detection of human hair and nail by the nanosecond time-gated spectroscopy of laser-ablation plume"Proc.SPIE,Progress in Biomed.Opt.& Imaging. Vol.3917. 87-92 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Optical reflection imaging for display of 2-D refractive index distribution along the geometrical thickness"OSA Biomed.Topical Meetings, Tech.Digest. MB5. 194-196 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Nanosecond time-gated spectroscopy of laser-ablation plume of human hair to detect calcium for potential diagnoses"Optical Review. Vol.7,No.4. 353-357 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Koji Yoden: "An approach to optical reflection tomography along the geometrical thickness"Optical Review. Vol.7,No.5. 402-405 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hideki Maruyama: "Simultaneous measurement of refractive index and thickness by low coherence interferometry considering chromatic dispersion of index"Optical Review. Vol.7,No.5. 468-472 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "In vitro simultaneous measurement of refractive index and thickness by low coherence interferometry"IEEE Trans.Biomed.Eng.. Vol.47,No.9. 1266-1270 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Shogo Inoue: "Ultra low coherence interferometry for determination of refractive index and thickness of transparent plate"14th Int'l Conf.Opt.Fiber Sensors (OFS-14). P2-21. 468-471 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Optical reflection imaging along the geometrical thickness by combination of coherence-gate and confocal imagings"14th Int'l Conf.Opt.Fiber Sensors (OFS-14). Th1-3. 288-291 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 春名正光: "光コヒーレンストモグラフィ(OCT)-原理と開発の現状-"臨床消化器内科. Vol.16,No.1. 131-133 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 春名正光: "生体のマイクロ光診断と実サイズ光トモグラフィ"O plus E. Vol.23,No.1. 86-89 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 丸山英樹: "低コヒーレンス光干渉による屈折率と厚さ同時測定-光ディスク評価への応用-"表面技術. Vol.52,No.2. 206-210 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "In situ tomographic observation of tissue surface during laser ablation"Proc.SPIE,Progress in Biomed.Opt.& Imaging. Vol.4257(to be published). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Optical reflection tomography along the geometrical thickness"Proc.SPIE,Progress in Biomed.Opt.& Imaging. Vol.4251(to be published). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ryuh Konoshita: "Measurement of calcium of biological tissues along the depth by laser ablation"Conf.Lasers & Electro-Optics (CLEO/PR2001). (to be published). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Optical reflection tomography along the geometrical thickness toward in vivo imaging of biological tissue"Conf.Lasers & Electro-Optics (CLEO/PR2001). (to be published). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Simultaneous measurement of refractive index and thickness of biological tissue by low coherence interferometry"Jpn.J.Medical Electron.and Biological Engineering. Vol.37, No.1. 78-34 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hideki Maruyama: "A practical measurement system for determination of refractive index and thickness using the low coherence interferometry"1999 Int'l Conf.Opt.Eng.for Sensing and Nanotech.(ICOSN'99). Vol.3740. 26-29 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Mitsuo Nakamura: "Time-gated spectroscopic study of laser-ablation plume of biological tissue"The 3rd Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR'99). Vol.1. 45-46 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Low coherence interferometry for simultaneous measurement of refractive index and thickness"The 3rd Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR'99). Vol.1. 64-65 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Shogo Inoue: "Simultaneous measurement of refractive index and thickness of transparent film by ultra-low coherence interferometry"Proc.of 24th Meeting on Lightwave Sensing Technol.. LST24-14. 87-94 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Optical tomography in the medical field, Optical tomography by the low coherence interferometry"O plus E. Vol.21, No.7. 800-808 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Detection of phase transition of a biological membrane by precise refractive-index measurement based on the low coherence interferometry"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.3915. 187-193 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Calcium detection of human hair and nail by the nanosecond time-gated spectroscopy of laser-ablation plume"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.3917. 87-92 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Optical reflection imaging for display of 2-D refractive index distribution along the geometrical thickness"OSA Biomed.Topical Meetings, Tech.Digest. MB-5. 194-196 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Nanosecond time-gated spectroscopy of laser-ablation plume of human hair to detect calcium for potential diagnoses"Optical Review. Vol.7, No.4. 353-357 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Koji Yoden: "An approach to optical reflection tomography along the geometrical thickness"Optical Review. Vol.7, No.5. 402-405 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hideki Maruyama: "Simultaneous measurement of refractive index and thickness by low coherence interferometry considering chromatic dispersion of index"Optical Review. Vol.7, No.5. 468-472 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "In vitro simultaneous measurement of refractive index and thickness by low coherence interferometry"IEEE Trans.Biomed.Eng.. Vol.47, No.9. 1266-1270 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Shogo Inoue: "Ultra low coherence interferometry for determination of refractive index and thickness of transparent plate"14th Int'l Conf.Opt.Fiber Sensors, (OFS-14). P2-21. 468-478 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Optical reflection imaging along the geometrical thickness by combination of coherence-gate and confocal imagings"14th Int'l Conf.Opt.Fiber Sensors, (OFS-14). Th1-3. 288-291 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Optical Coherence Tomography (OCT), -Measurement priciple and development-"Gastrointestinal clinic. Vol.16, No.1. 131-133 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Optical micro analizer and optical tomography along the geometrical size"O plus E. Vol.23, No.1. 86-89 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Hideki Maruyama: "Simultaneous measurement of refractive index and thickness using low coherence interferometry-Evaluation of optical disks-"Surface Technology. Vol.52, No.2. 205-210 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "In situ tomographic observation of tissue surface during laser ablation"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.4257 (to be published). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Optical reflection tomography along the geometrical thickness"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.4251 (to be published). (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Ryuh Konoshita: "Measurement of calcium of biological tissues along the depth by laser ablation"Conference on Lasers and Electro-Optics (CLEO/PR'2001). (to be published).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masato Ohmi: "Optical reflection tomography along the geometrical thickness toward in vivo imaging of biological tissue"Conference on Lasers and Electro-Optics (CLEO/PR'2001). (to be published).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Masamitsu Haruna: "Detection of phase transition of a biological membrane by precise refractive-index measurement based on the low coherence interferometry"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.3915. 188-193 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masamitsu Haruna: "Calcium detection of human hair and nail by the nanosecond time-gated spectroscopy of laser-ablation plume"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.3917. 87-92 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masamitsu Haruna: "Optical reflection imaging for display of 2-D refractive index distribution along the geometrical thickness"OSA Biomed.Topical Meetings, Tech.Dig.. MB5. 194-196 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masato Ohmi: "Nanosecond time-gated spectroscopy of laser-ablation plume of human hair to detect calcium for potential diagnoses"Optical Review. Vol.7,No.4. 353-357 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Koji Yoden: "An approach to optical reflection tomography along the geometrical thickness"Optical Review. Vol.7,No.5. 402-405 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hideki Maruyama: "Simultaneous measurement of refractive index and thickness by low coherence interferometry considering chromatic dispersion of index"Optical Review. Vol.7,No.5. 468-472 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masato Ohmi: "In vitro simultaneous measurement of refractive index and thickness by low coherence interferometry"IEEE Trans.Biomed.Eng.. Vol.47,No.9. 1266-1270 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Shogo Inoue: "Ultra low coherence interferometry for determination of refractive index and thickness of transparent plate"14th Int'l Conf.Opt.Fiber Sensors(OFS-14). P2-21. 468-471 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masato Ohmi: "Optical reflection imaging along the geometrical thickness by combination of coherence-gate and confocal imagings"14th Int'l Conf.Opt.Fiber Sensors(OFS-14). Th1-3. 288-291 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 春名正光: "光コヒーレンストモグラフィ(OCT)-原理と開発の現状-"臨床消化器内科. Vol.16,No.1. 131-133 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 春名正光: "生体のマイクロ光診断と実サイズ光トモグラフィ"O plus E. Vol.23,No.1. 86-89 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masamitsu Haruna: "In situ tomographic observation of tissue surface during laser ablation"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.4257(to be published). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masato Ohmi: "Optical reflection tomography along the geometrical thickness"Proc.SPIE, Progress in Biomed.Opt.& Imaging. Vol.4251(to be published). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ryuh Konoshita: "Measurement of calcium of biological tissues along the depth by laser ablation"Conf.Lasers & Electro-Optics(CLEO/PR2001). (to be published). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Masato Ohmi: "Optical reflection tomography along the geometrical thickness toward in vivo imaging of biological tissue"Conf.Lasers & Electro-Optics(CLEO/PR2001). (to be published). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Shogo inoue: "A low coherence interferometer system for simultaneous measurement of refractive index and thickness ranging 20 μm to a few millimeters"13th lnt'l Conf. Optical Fiber Sensors(OFS-13). Tu4-6. 124-127 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 近江 雅人: "低コヒーレンス光干渉による生体組織の屈折率と厚さ測定"医用電子と生体工学. Vol.37,No.1. 78-84 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Hideki Maruyama: "A practical measurement system for determination of refractive index and thickness using the low coherence interferometer"1999 lnt'l Conf. Opt. Eng. for Sensing and Nanotech.(ICOSN'99). proc.SPIE,Vol.3740. 26-29 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Mitsuo Nakamura: "Time-gated spectroscopic study of laser-ablation plume of biological tissue"The 3rd Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR'99). Tech.Digest Vol.1. 45-46 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Masamitsu Haruna: "Low coherence interferometer for simultaneous measurement of refractive index and thickness"The 3rd Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PR'99). Tech.Digest Vol.1. 64-65 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 井上 将吾: "超低コヒーレンス光干渉による膜の屈折率と厚さ同時測定"応用物理学会・光波センシング技術研究会. LST24-14. 87-94 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 春名 正光: "医療分野における光断層画像:低コヒーレンズ光干渉による断層像検出を中心として"O plus E. Vol.21,No.7. 800-808 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Masamitsu Haruna: "Calcium dertection of human hair and nail by the nanosecond time-gated spectroscopy of laser-ablation plume"SPIE International Conf.BIOS 2000(Biomedical Optics). Paper 3917-14. 128-128 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Masamitsu Haruna: "Detection of phase transition of a biological membrane by precise refractive-index measurement based on the low coherence interferometry"SPIE International Conf.BIOS 2000(Biomedical Optics). Paper 3915-25. 108-108 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Masamitsu Haruna: "Optical reflection imaging for display of 2-D refractive index distribution along the geometrical thickness"OSA Biomedical Topical Meeting. Paper MB5(to be presented). (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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