Papers by Tetsuro Odagawa
Studies on measurement of thyroid uptake rate on 131I scintigraphy images
The Journal of Nuclear Medicine, May 1, 2015
PubMed, May 1, 2008
The projection data from multiple centers were successfully transferred to a common format for SP... more The projection data from multiple centers were successfully transferred to a common format for SPECT reconstruction. When the average values were analyzed using a 17-segment model, myocardial counts in the septal segment differed signifi cantly between 180° and 360° rotation acquisitions. Regional differences were observed between men and women in the inferior and anterior regions. A tracer difference between 99m Tc and 201 Tl was also observed in some segments. The attenuation patterns differed signifi cantly between subjects from the United States and those from Japan. Conclusions Myocardial perfusion data that were specifi c for the Japanese population were generated. The normal database can serve a standard for nuclear cardiology work conducted in Japan.
心筋・縦隔のSPECT-CTデータを用いた心縦隔比計測の精度向上に関する研究
日本放射線技術学会総会学術大会予稿集, 2018
Validity of a Newly Developed Noninvasive Method for Estimating Cerebral Blood Flow Using 123I-IMP Acquisition Data from the Lungs and Brain
Medical research archives, 2016
Objective: Previously we devised a method for estimating 123I-IMP activity at 10 min after intrav... more Objective: Previously we devised a method for estimating 123I-IMP activity at 10 min after intravenous injection of 123I-IMP (Ca10) without any blood sampling using 123I-IMP autoradiography (ARG) acquisition data, and verified its usefulness for quantification of the regional cerebral blood flow (rCBF). In this study, we attempted to develop a more simplified method for estimation of Ca10 and to validate its usefulness for quantification of rCBF in a number of patients with different cerebrovascular diseases.Methods: Consecutive 134 patients were examined for 123I-IMP ARG study. Dynamic images of the lungs for 5 min and brain SPECT images for 30 min (6×5 min) and Ca 10 values were acquired from the first 35 patients. Using the data of the 35 patients, the regression equation for estimating Ca10 was calculated by the multiple regression analysis. The regression equation was applied to the other 99 patients who comprised 29 patients with Parkinson’s disease, 32 with common or internal carotid artery occlusion or stenosis, 14 with moyamoya disease, 12 with cerebral infarction, and 12 with other diseases. The mean of rCBFs in various regions of the brain (mCBF) calculated using the estimated Ca10 was compared with that calculated using directly measured Ca10 in the 99 patients. Results: The regression equation obtained was as follows: Estimated Ca10 =1070.1 +2.17 ×10-3a-8.08 ∙ b - 2.23 ×c +2.47 ×10-3d, where a: the area under the time-activity curve of the lungs (UCL), b: body weight, c: sum of UCL and the counts of brain projection data from 10 to 15 min after injection (CB1), d: those from 35 to 45 min (CB6), respectively. The estimated Ca10 closely correlated with the directly measured Ca10 (r=077). The mCBF values calculated using the estimated Ca10 closely correlated with those calculated using the directly measured Ca10 in all the patient groups (r=0.80, 0.78, 0.62, 0.77, 0.85 and 0.79 in patients with Parkinson’s disease, common or internal carotid artery occlusion or stenosis, moyamoya disease, cerebral infarction, and the other diseases, and total 99 patients, respectively). Conclusion: This study verified that the newly developed noninvasive method, which is more simplified than the previous method, can estimate reliably the Ca10 values which are available for quantification of rCBF in different patient groups.
Uptake of F-18 FDOPA in the heart muscle of normal humans in F-18 FDOPA PET
The Journal of Nuclear Medicine, May 1, 2014
A basic study of a force display using a metal hydride actuator
Proceedings of 1993 2nd IEEE International Workshop on Robot and Human Communication
A new method of a force display is proposed for presenting the sense of force to an elbow joint u... more A new method of a force display is proposed for presenting the sense of force to an elbow joint using a metal hydride (MH) actuator to be used in artificial reality and tele-existence robot. An MH actuator is very suitable for the force display because it works smoothly without any noise. In addition, the actuator is compact, light weight, and
Detection of urinary tract tumors by 18F-FLT PET/CT
The Journal of Nuclear Medicine, May 1, 2016
4．The latest topic of Siemens Molecular Imaging
THE JAPANESE SOCIETY OF NUCLEAR MEDICINE / The Japanese Society of Nuclear Medicine Technology, Oct 25, 2018
A tactile display for presenting quality of materials by changing the temperature of skin surface
Proceedings of 1993 2nd IEEE International Workshop on Robot and Human Communication
Tactile information processing was studied based on psychophysical experiments in order to design... more Tactile information processing was studied based on psychophysical experiments in order to design a tactile display for tele-existence robots or virtual reality devices. First, the identification characteristics of the tactile sensing concerned with the quality of materials were investigated when human fingertips touched the surface of various materials in a vertical direction. In addition to obtaining the tactile characteristics, the
Evaluation of SPECT for sentinel lymph nodes of breast carcinoma fused with 3-dimensional CT
Evaluation of 223Ra therapy on bone metastases of prostate cancer by 18F-fluoride PET/CT, 18F-FDG PET/CT and bone scintigraphy/SPECT
The Journal of Nuclear Medicine, 2019
Evaluation of the tumoricidal and pain relief effects of 89Sr on bone metastases of cancer by 18F-fluoride PET/CT, 18F-FDG PET/CT, bone scintigraphy/SPECT, and follow-up
The Journal of Nuclear Medicine, 2018
Transactions of the Society of Instrument and Control Engineers, 1994
Detection of Urinary Tract Cancer by C-11 Choline PET/CT or F-18 FDG PET/CT
ABSTRACT
Uptake of F-18 FDOPA in the Corpus Striatum of Normal Brain in F-18 FDOPA PET
ABSTRACT
Annals of Nuclear Medicine, 2007
Objective: Standards for myocardial single-photon emission computed tomography (SPECT) adapted fo... more Objective: Standards for myocardial single-photon emission computed tomography (SPECT) adapted for a Japanese population have not been available. The purpose of this project was to create standard files approved by the Japanese Society of Nuclear Medicine and to make known the characteristics of the myocardial perfusion pattern of this population. Methods: With the collaboration of nine hospitals, a total of 326 sets of exercise-rest myocardial perfusion images were accumulated from subjects with a low-likelihood of cardiac diseases. The normal database included a 99m Tc-MIBI/tetrofosmin myocardial perfusion study with 360-degree (n=80) and 180-degree (n=56) rotations, 201 Tl study with 360-degree (n=115) and 180-degree rotations (n=54) and a dual-isotope study with 360-degree rotation (n=27). The projection images were transferred by DICOM (Digital Imaging and Communications in Medicine) format and reconstructed and analyzed with polar maps. Results: The projection data from multiple centers were successfully transferred to a common format for SPECT reconstruction. When the average values were analyzed using a 17-segment model, myocardial counts in the septal segment differed significantly between 180-degree and 360-degree rotation acquisitions. Regional differences were observed between males and females in the inferior and anterior regions. A tracer difference between 99m Tc and 201 Tl was also observed in some segments. The attenuation patterns differed significantly between subjects from the United States and Japanese populations. Conclusion: Myocardial perfusion data that were specific for the Japanese population were generated. The normal database can serve a standard for nuclear cardiology work conducted in Japan.
Comparative examination of the cerebellum and pons as reference regions for quantitative evaluation in PET imaging for Alzheimer's disease using11C-Pittsburgh Compound-B
The Journal of Nuclear Medicine, 2019
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Papers by Tetsuro Odagawa