医用画像人工知能研究開発講座

研究成果

年別の研究成果 1990 1991 1993 1997 1998 1999 2009 2010 2011 2014 2015 2016 2021

• 1163 被引用数
• 13 h-index
• 34 Article
• 5 Conference contribution
• 1 Review article

年別の研究成果

年別の研究成果

検索結果

• 2021

  Semi-quantitative assessment optimized the grading of pulmonary aspiration on salivagram in children

  Shao, F., Zhao, X., Toyama, H., Ichihara, T., Zhuang, H., Zhao, R., Kung, B. T., Ng, K. S., Zhang, Z. & Wu, H., 03-2021, In: Annals of Nuclear Medicine. 35, 3, p. 321-327 7 p.

  研究成果: Article › 査読

  • Lung 100%
  • Child 81%
  • ROC Curve 63%
  • Nuclear Medicine 43%
  • Respiratory System 35%
• 2020

  Measurement of effective renal plasma flow using model analysis of dynamic CT in the preoperative evaluation of the renal transplant donors

  Kataoka, Y., Nishio, H., Matsukiyo, R., Kato, R., Hasegawa, M., Kenmochi, T., Shiroki, R., Toyama, H., Ichihara, T. & Kobayashi, S., 2020, In: Fujita medical journal. 6, 3, p. 73-80 8 p.

  研究成果: Article › 査読
• 2019

  Clinical utility of the normal database of ¹²³I-iodoamphetamine brain perfusion single photon emission computed tomography for statistical analysis using computed tomography-based attenuation correction: a multicenter study

  Yamazaki, T., Inui, Y., Ichihara, T., Uno, M., Ota, S., Toyoda, A., Ishiguro, M., Kato, T., Ito, K. & Toyama, H., 01-11-2019, In: Annals of Nuclear Medicine. 33, 11, p. 835-841 7 p.

  研究成果: Article › 査読

  • Single-Photon Emission-Computed Tomography 100%
  • Multicenter Studies 85%
  • Perfusion 74%
  • Tomography 67%
  • Databases 59%
  2 被引用数 (Scopus)
• 2018

  CT-based attenuation correction and resolution compensation for I-123 IMP brain SPECT normal database: a multicenter phantom study

  Inui, Y., Ichihara, T., Uno, M., Ishiguro, M., Ito, K., Kato, K., Sakuma, H., Okazawa, H. & Toyama, H., 01-06-2018, In: Annals of Nuclear Medicine. 32, 5, p. 311-318 8 p.

  研究成果: Article › 査読

  • Inosine Monophosphate 100%
  • Single-Photon Emission-Computed Tomography 76%
  • Multicenter Studies 65%
  • Tomography 51%
  • Databases 45%
  4 被引用数 (Scopus)
• 2016

  New catheter-based calibration method for 2D X-ray angiography myocardial perfusion

  Sakaguchi, T., Iwai, H., Nagae, R., Natsume, T., Ichihara, T. & Yagi, T., 01-01-2016, In: IEEJ Transactions on Electronics, Information and Systems. 136, 9, p. 1305-1311 7 p.

  研究成果: Article › 査読

  • Angiography 100%
  • Catheters 96%
  • X rays 69%
  • Calibration 58%
  • Iodine 25%

• Underestimation of myocardial blood flow by dynamic perfusion CT: Explanations by two-compartment model analysis and limited temporal sampling of dynamic CT

  Ishida, M., Kitagawa, K., Ichihara, T., Natsume, T., Nakayama, R., Nagasawa, N., Kubooka, M., Ito, T., Uno, M., Goto, Y., Nagata, M. & Sakuma, H., 01-06-2016, In: Journal of Cardiovascular Computed Tomography. 10, 3, p. 207-214 8 p.

  研究成果: Article › 査読

  • Cone-Beam Computed Tomography 100%
  • Perfusion 90%
  • Blood Volume 61%
  • Coronary Artery Disease 49%
  • Computed Tomography Angiography 47%
  31 被引用数 (Scopus)
• 2015

  A technique for quantitative measurement of myocardial blood flow using a combination of bolus tracking and time-registered helical multidetector CT angiography during adenosine stress

  Ichihara, T., George, R. T., Mather, R., Lima, J. A. C. & Lardo, A. C., 2015, In: Fujita medical journal. 1, 1, p. 9-14 6 p.

  研究成果: Article › 査読

• Development of a method for automated and stable myocardial perfusion measurement using coronary X-ray angiography images

  Sakaguchi, T., Ichihara, T., Natsume, T., Yao, J., Yousuf, O., Trost, J. C., Lima, J. A. C. & George, R. T., 29-06-2015, In: International Journal of Cardiovascular Imaging. 31, 5, p. 905-914 10 p.

  研究成果: Article › 査読

  • Angiography 100%
  • X-Rays 96%
  • Perfusion 94%
  • Contrast Media 32%
  • Myocardium 29%
  5 被引用数 (Scopus)

• Evaluation of ⁸⁵Sr/⁸⁹Sr spect using SPECT/CT system

  Ota, S., Toyama, H., Uno, M., Ishiguro, M., Natsume, T., Yokoyama, S. & Ichihara, T., 2015, In: Japanese Journal of Clinical Radiology. 60, 2, p. 304-310 7 p.

  研究成果: Article › 査読

  • Single Photon Emission Computed Tomography Computed Tomography 100%
  • Single-Photon Emission-Computed Tomography 51%
  • Neoplasm Metastasis 7%
  • Bone and Bones 7%

• Theoretical considerations in measurement of time discrepancies between input and myocardial time-signal intensity curves in estimates of regional myocardial perfusion with first-pass contrast-enhanced MRI

  Natsume, T., Ishida, M., Kitagawa, K., Nagata, M., Sakuma, H. & Ichihara, T., 11-2015, In: Magnetic Resonance Imaging. 33, 9, p. 1059-1065 7 p., 8392.

  研究成果: Article › 査読

  • Magnetic resonance imaging 100%
  • Blood 87%
  • Perfusion 72%
  • Myocardium 33%
  • Contrast Media 29%
  1 被引用数 (Scopus)
• 2014

  ⁸⁹Sr bremsstrahlung single photon emission computed tomography using a gamma camera for bone metastases

  Ota, S., Uno, M., Kato, M., Ishiguro, M., Natsume, T., Kikukawa, K., Tadokoro, M., Ichihara, T. & Toyama, H., 02-2014, In: Annals of Nuclear Medicine. 28, 2, p. 112-119 8 p.

  研究成果: Article › 査読

  • Gamma Cameras 100%
  • Single-Photon Emission-Computed Tomography 79%
  • Neoplasm Metastasis 48%
  • Bone and Bones 46%
  • Body Image 17%
  2 被引用数 (Scopus)

• Development of a theory for generating regional cardiac perfusion images during coronary angiography in the coronary angiography lab

  Sakaguchi, T., Ichihara, T., Trost, J. C., Yousuf, O., Lima, J. A. C., Yao, J. & George, R. T., 01-2014, In: International Journal of Cardiovascular Imaging. 30, 1, p. 9-19 11 p.

  研究成果: Article › 査読

  • Coronary Angiography 100%
  • Perfusion 76%
  • Color 50%
  • Microspheres 41%
  • Coronary Vessels 33%
  4 被引用数 (Scopus)
• 2011

  A trial of⁸⁹Sr bremsstrahlung SPECT

  Ota, S., Toyama, H., Uno, M., Kato, M., Ishiguro, M., Natsume, T., Ito, F., Kikukawa, K., Tadokoro, M., Ichihara, T. & Katada, K., 05-2011, In: Kakuigaku. 48, 2, p. 101-107 7 p.

  研究成果: Article › 査読

  • Single-Photon Emission-Computed Tomography 100%
  • Technetium Tc 99m Medronate 25%
  • Body Image 10%
  • Clinical Studies 6%
  4 被引用数 (Scopus)

• Quantification of myocardial blood flow using model based analysis of first-pass perfusion MRI: Extraction fraction of Gd-DTPA varies with myocardial blood flow in human myocardium

  Ishida, M., Ichihara, T., Nagata, M., Ishida, N., Takase, S., Kurita, T., Ito, M., Takeda, K. & Sakuma, H., 11-2011, In: Magnetic Resonance in Medicine. 66, 5, p. 1391-1399 9 p.

  研究成果: Article › 査読

  • Gadolinium DTPA 100%
  • Myocardium 64%
  • Perfusion 58%
  • Cine Magnetic Resonance Imaging 20%
  • Coronary Sinus 8%
  25 被引用数 (Scopus)

• Quantitative analysis of first-pass contrast-enhanced myocardial perfusion multidetector CT using a Patlak plot method and extraction fraction correction during adenosine stress

  Ichihara, T., George, R. T., Silva, C., Lima, J. A. C. & Lardo, A. C., 02-2011, In: IEEE Transactions on Nuclear Science. 58, 1 PART 1, p. 133-138 6 p., 5654617.

  研究成果: Article › 査読

  • adenosines 100%
  • blood flow 71%
  • quantitative analysis 65%
  • Blood 60%
  • plots 53%
  7 被引用数 (Scopus)
• 2010

  A method for reconstructing the arterial input function during helical CT: Implications for myocardial perfusion distribution imaging

  George, R. T., Ichihara, T., Lima, J. A. C. & Lardo, A. C., 01-05-2010, In: Radiology. 255, 2, p. 396-404 9 p.

  研究成果: Article › 査読

  • Myocardial Perfusion Imaging 100%
  • Area Under Curve 39%
  • Perfusion 36%
  • Adenosine 32%
  • Animal Care Committees 24%
  25 被引用数 (Scopus)
• 2009

  Quantitative analysis of first-pass contrast-enhanced myocardial perfusion MRI using a Patlak plot method and blood saturation correction

  Ichihara, T., Ishida, M., Kitagawa, K., Ichikawa, Y., Natsume, T., Yamaki, N., Maeda, H., Takeda, K. & Sakuma, H., 08-2009, In: Magnetic Resonance in Medicine. 62, 2, p. 373-383 11 p.

  研究成果: Article › 査読

  • Perfusion 100%
  • Coronary Sinus 48%
  • Cine Magnetic Resonance Imaging 29%
  43 被引用数 (Scopus)

• Quantitative assessment of regional systolic and diastolic functions and temporal heterogeneity of myocardial contraction in patients with myocardial infarction using cine magnetic resonance imaging and Fourier fitting

  Natsume, T., Amano, T., Takehara, Y., Ichihara, T., Takeda, K. & Sakuma, H., 12-2009, In: Magnetic Resonance Imaging. 27, 10, p. 1440-1446 7 p.

  研究成果: Article › 査読

  • Cine Magnetic Resonance Imaging 100%
  • Gadolinium 98%
  • Myocardial Contraction 95%
  • Magnetic resonance 71%
  • Imaging techniques 52%
  6 被引用数 (Scopus)
• 2002

  Differences in fatty acid metabolic disorder between ischemic myocardium and doxorubicin-induced myocardial damage: Assessment using BMIPP dynamic SPECT with analysis by the Rutland method

  Kitagawa, K., Takeda, K., Saito, K., Okamoto, S., Makino, K., Maeda, H. & Ichihara, T., 01-10-2002, In: Journal of Nuclear Medicine. 43, 10, p. 1286-1294 9 p.

  研究成果: Article › 査読

  • iodofiltic acid 100%
  • Single-Photon Emission-Computed Tomography 61%
  • Doxorubicin 55%
  • Myocardial Ischemia 53%
  • Fatty Acids 51%
  13 被引用数 (Scopus)
• 2000

  Detection of doxorubicin cardiotoxicity by using iodine-123 BMIPP early dynamic SPECT: Quantitative evaluation of early abnormality of fatty acid metabolism with the Rutland method

  Saito, K., Takeda, K., Okamoto, S., Okamoto, R., Makino, K., Tameda, Y., Nomura, Y., Maeda, H., Ichihara, T. & Nakano, T., 11-2000, In: Journal of Nuclear Cardiology. 7, 6, p. 553-561 9 p.

  研究成果: Article › 査読

  • iodofiltic acid 100%
  • Iodine-123 90%
  • Cardiotoxicity 68%
  • pentadecanoic acid 67%
  • Single-Photon Emission-Computed Tomography 61%
  21 被引用数 (Scopus)
• 1999

  Feasibility of simultaneous stress ^99mTc-sestamibi/rest ²⁰¹Tl dual-isotope myocardial perfusion SPECT in the detection of coronary artery disease

  Nakamura, M., Takeda, K., Ichihara, T., Motomura, N., Shimizu, H., Saito, Y., Nomura, Y., Isaka, N., Konishi, T. & Nakano, T., 06-1999, In: Journal of Nuclear Medicine. 40, 6, p. 895-903 9 p.

  研究成果: Article › 査読

  • Technetium Tc 99m Sestamibi 100%
  • Isotopes 78%
  • Single-Photon Emission-Computed Tomography 74%
  • Coronary Artery Disease 60%
  • Perfusion 55%
  19 被引用数 (Scopus)

• Practical compensation method of downscattered component due to high energy photon in ¹²³I imaging

  Motomura, N., Ichihara, T., Takayama, T., Aoki, S., Kubo, H. & Takeda, K., 1999, In: Kakuigaku. 36, 9, p. 997-1005 9 p.

  研究成果: Article › 査読

  • Photons 100%
  • 3-Iodobenzylguanidine 26%
  • Torso 24%
  • Gamma Cameras 23%
  • Myocardial Perfusion Imaging 23%
  12 被引用数 (Scopus)
• 1998

  Increased lung uptake of iodine-123-MIBG in diabetics with sympathetic nervous dysfunction

  Murashima, S., Takeda, K., Matsumura, K., Yamakado, K., Sakuma, H., Kitano, T., Nakagawa, T., Ichihara, T., Yamakado, T. & Murata, K., 02-1998, In: Journal of Nuclear Medicine. 39, 2, p. 334-338 5 p.

  研究成果: Article › 査読

  • Iodine-123 100%
  • 3-Iodobenzylguanidine 94%
  • Lung 35%
  • Dilated Cardiomyopathy 10%
  • Radionuclide Imaging 9%
  25 被引用数 (Scopus)

• Ultra high resolution pinhole SPECT for small animal study

  Ogawa, K., Kawade, T., Nakamura, K., Kubo, A. & Ichihara, T., 1998, In: IEEE Transactions on Nuclear Science. 45, 6, p. 3122-3126 5 p.

  研究成果: Article › 査読

  • pinholes 100%
  • Image reconstruction 93%
  • animals 87%
  • Animals 87%
  • Imaging techniques 69%
  61 被引用数 (Scopus)
• 1997

  Development of a lead x-ray compensation method in simultaneous tl-201 spect & tc-99m tct using a flood source

  Motomura, N., Ichihara, T., Hasegawa, H., Ogawa, K., Hashimoto, J. & Kubo, A., 1997, In: IEEE Transactions on Nuclear Science. 44, 6 PART 2, p. 2459-2464 6 p.

  研究成果: Article › 査読

  • Single photon emission computed tomography 100%
  • Contamination 58%
  • Lead 56%
  • X rays 54%
  • Computerized tomography 49%
  1 被引用数 (Scopus)

• Estimation of scattered photons in gamma ray transmission CT using Monte Carlo simulations

  Ogawa, K., Kawamura, Y., Kubo, A. & Ichihara, T., 1997, In: IEEE Transactions on Nuclear Science. 44, 3 PART 2, p. 1225-1230 6 p.

  研究成果: Article › 査読

  • Gamma rays 100%
  • Photons 94%
  • collimators 83%
  • gamma rays 59%
  • photons 44%
  6 被引用数 (Scopus)

• Quantitative analysis of scatter- and attenuation-compensated dynamic single-photon emission tomography for functional hepatic imaging with a receptor-binding radiopharmaceutical

  Ichihara, T., Maeda, H., Yamakado, K., Motomura, N., Matsumura, K., Takeda, K. & Nakagawa, T., 1997, In: European Journal of Nuclear Medicine. 24, 1, p. 59-67 9 p.

  研究成果: Article › 査読

  • Radiopharmaceuticals 100%
  • Photons 88%
  • Tomography 56%
  • Liver 42%
  • Blood Volume 28%
  19 被引用数 (Scopus)

• Scatter and attenuation correction in technetium-99m brain SPECT

  Hashimoto, J., Kubo, A., Ogawa, K., Amano, T., Fukuuchi, Y., Motomura, N. & Ichihara, T., 01-1997, In: Journal of Nuclear Medicine. 38, 1, p. 157-162 6 p.

  研究成果: Article › 査読

  • Technetium 100%
  • Single-Photon Emission-Computed Tomography 85%
  • Brain 41%
  • technetium Tc 99m bicisate 38%
  • Compensation and Redress 16%
  41 被引用数 (Scopus)
• 1994

  Exercise and rest myocardial scintigraphy with ²⁰¹TlCl/^99mTc-MIBI dual energy acquisition using triple-energy window scatter correction

  Hashimoto, J., Matsuda, M., Sammiya, T., Nakamura, K., Tsukatani, Y., Kubo, A., Ogawa, K., Takahashi, E., Mitamura, H., Handa, S., Ogawa, S. & Ichihara, T., 1994, In: Kakuigaku. 31, 11, p. 1365-1372 8 p.

  研究成果: Article › 査読

  • Myocardial Perfusion Imaging 100%
  • Injections 46%
  • Isotopes 43%
  • Single-Photon Emission-Computed Tomography 41%
  2 被引用数 (Scopus)
• 1993

  Compton scatter compensation using the triple-energy window method for single- and dual-isotope SPECT

  Ichihara, T., Ogawa, K., Motomura, N., Kubo, A. & Hashimoto, S., 1993, In: Journal of Nuclear Medicine. 34, 12, p. 2216-2221 6 p.

  研究成果: Article › 査読

  • Isotopes 100%
  • Single-Photon Emission-Computed Tomography 94%
  • Photons 49%
  • Clinical Trials 15%
  259 被引用数 (Scopus)

• High spatial resolution reconstruction technique for spect using a fan-beam collimator

  Ichihara, T., Nambu, K. & Motomura, N., 08-1993, In: IEEE Transactions on Nuclear Science. 40, 4, p. 1149-1157 9 p.

  研究成果: Article › 査読

  • fans 100%
  • collimators 97%
  • Fans 87%
  • spatial resolution 74%
  • high resolution 56%
  2 被引用数 (Scopus)
• 1991

  A Practical Method for Position-Dependent Compton-Scatter Correction in Single Photon Emission CT

  Ogawa, K., Harata, Y., Ichihara, T., Kubo, A. & Hashimoto, S., 09-1991, In: IEEE Transactions on Medical Imaging. 10, 3, p. 408-412 5 p.

  研究成果: Article › 査読

  • Photons 100%
  • Pixels 42%
  • Phantoms 30%
  • Single-Photon Emission-Computed Tomography 28%
  • Datasets 22%
  473 被引用数 (Scopus)

• The influence of the time activity variation on dynamic SPECT images in camera based SPECT

  Maeda, H., Takeda, K., Matsumura, K., Nakagawa, T., Kitano, T., Ejiri, K., Kondou, T., Takeuchi, A., Toyama, H., Takeshita, G., Koga, S. & Ichihara, T., 1991, In: Kakuigaku. 28, 1, p. 27-34 8 p.

  研究成果: Article › 査読

  • Single-Photon Emission-Computed Tomography 100%
  • Gamma Cameras 25%
  • Kidney 21%
  • Radioisotopes 20%
  • Artifacts 18%
  5 被引用数 (Scopus)
• 1990

  Serial change of ¹²³I-Metaiodobenzylguanidine (MIBG) myocardial concentration in patients with dilated cardiomyopathy

  Yamakado, K., Takeda, K., Kitano, T., Nakagawa, T., Futagami Konishi, Y. T., Hamada, M., Nakano, T. & Ichihara, T., 1990, In: Kakuigaku. 27, 7, p. 703-708 6 p.

  研究成果: Article › 査読

  • Dilated Cardiomyopathy 100%
  • Radioactivity 15%
  • Myocardium 12%
  • Injections 8%
  2 被引用数 (Scopus)