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Ofuji, Asato, Nagaoka, Rieko, Yamashita, Kosuke, Takaki, Akihiro, Ito, Shigeki. (1396). A simple non-invasive I-123-IMP autoradiography method developed by modifying the simple non-invasive I-123-IMP microsphere method. , 6(1), 50-56. doi: 10.22038/aojnmb.2017.9555
Asato Ofuji; Rieko Nagaoka; Kosuke Yamashita; Akihiro Takaki; Shigeki Ito. "A simple non-invasive I-123-IMP autoradiography method developed by modifying the simple non-invasive I-123-IMP microsphere method". , 6, 1, 1396, 50-56. doi: 10.22038/aojnmb.2017.9555
Ofuji, Asato, Nagaoka, Rieko, Yamashita, Kosuke, Takaki, Akihiro, Ito, Shigeki. (1396). 'A simple non-invasive I-123-IMP autoradiography method developed by modifying the simple non-invasive I-123-IMP microsphere method', , 6(1), pp. 50-56. doi: 10.22038/aojnmb.2017.9555
Ofuji, Asato, Nagaoka, Rieko, Yamashita, Kosuke, Takaki, Akihiro, Ito, Shigeki. A simple non-invasive I-123-IMP autoradiography method developed by modifying the simple non-invasive I-123-IMP microsphere method. , 1396; 6(1): 50-56. doi: 10.22038/aojnmb.2017.9555

A simple non-invasive I-123-IMP autoradiography method developed by modifying the simple non-invasive I-123-IMP microsphere method

Asia Oceania Journal of Nuclear Medicine and Biology
مقاله 7، دوره 6، شماره 1، فروردین 2018، صفحه 50-56    اصل مقاله (870.93 K)
نوع مقاله: Technical note
شناسه دیجیتال (DOI): 10.22038/aojnmb.2017.9555
نویسندگان
Asato Ofuji* 1؛ Rieko Nagaoka2؛ Kosuke Yamashita3؛ Akihiro Takaki4؛ Shigeki Ito5
1Graduate School of Health Sciences, Kumamoto University, Kumamoto , Japan
2Department of Radiology, Clinical Research Institute, National Hospital Organization Kyushu Medical Center, Jigyouhama 1-8-1, Chuo-ku, Fukoka 810-8563, Japan
3Fujifilm RI Pharma Co.,Ltd. 14-1Kyobashi, 2-choume, chuo-ku, Tokyo, 104-0031, Japan
4Faculty of Life Sciences, Kumamoto University, Kuhonji 4-24-1, Chuo-ku, Kumamoto 862-0796, Japan
5Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, Kuhonji 4-24-1, Kumamoto 862-0796, Japan
چکیده
Objective: We developed a simple non-invasive I-123-N-isopropyl-p-iodoamphetamine (123I-IMP) quantification method by analyzing chest RI-angiography and single photon emission computed tomography (SPECT) images based on the microsphere model (SIMS method). Theoretically, the SIMS method could be changed to the simple non-invasive ARG (SIARG) method by modifying the integrated washout ratio (WR) to one-point WR. If the regional cerebral blood flow (rCBF) values derived from the SIARG and ARG methods correlate well, the facilities employing the ARG method can easily switch to the SIARG method. The purpose of this study was to develop the SIARG method by modifying the SIMS method and to confirm the feasibility of this method.
Methods: The correlation between the input counts of the SIARG method and the blood counts was determined by linear regression analysis. The rCBF values determined by the SIARG method were compared with the values obtained with the ARG and SIMS methods.
Results: There was a good linear correlation between the SIARG counts and the arterial blood counts obtained by the ARG method (r = 0.85, p < 0.001, n = 29). TherCBF values obtained by the ARG and SIARG methods (n = 29, 696 ROIs) correlated well (y = 1.01x – 3.6, r = 0.85, p < 0.001). Similarly, the rCBF values obtained by the SIARG and SIMS methods (n = 29, 696 ROIs) correlated well (y = 0.98x – 15.2, r = 0.90, p < 0.001). rCBF values obtained by the SIARG method were almost the same as the values obtained by the ARG method, and values of the SIMS method were 15 ml/100g/min higher that of those obtained by the SIARG method.
Conclusions: The rCBF values obtained by the ARG, SIARG, and SIMS methods correlated very well. Therefore, the SIARG method is potentially useful for examinations in routine clinical practice.
کلیدواژه‌ها
123I-IMP؛ SPECT؛ rCBF؛ auto-radiography (ARG) method؛ non-invasive method
مراجع

 

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