Yoshihiro Nishiyama
Kagawa University
PhysicsInternal medicineRadiologyPathologyStandardized uptake valueCondensed matter physicsPositron emission tomographyLung cancerChemotherapySpinsScintigraphyNuclear medicineIn patientNewly diagnosedMathematicsIsing modelQuantum mechanicsGround stateMedicineQuantum
396Publications
40H-index
4,352Citations
Publications 378
Newest
#1Takashi Norikane (Kagawa University)H-Index: 7
#2Yoshihiro Nishiyama (Kagawa University)H-Index: 40
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#1Katsuya Mitamura (Kagawa University)H-Index: 3
#2Takashi Norikane (Kagawa University)H-Index: 7
Last. Yoshihiro Nishiyama (Kagawa University)H-Index: 40
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We assessed the role of 18F-FDG PET/CT texture indices for the differentiation of squamous cell carcinoma (SCC) and non-Hodgkin's lymphoma (NHL) in the oropharynx. 18F-FDG PET/CT data for 27 patients with SCC and 25 patients with NHL in the oropharynx were investigated. The maximum standardized uptake value (SUVmax), metabolic tumor volume (MTV), total lesion glycolysis (TLG), and six texture indices (homogeneity, entropy, short-run emphasis, long-run emphasis, low gray-level zone emphasis [LGZE...
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#1Katsuya Mitamura (Kagawa University)H-Index: 3
#2Takashi NorikaneH-Index: 7
Last. Yoshihiro NishiyamaH-Index: 40
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ABSTRACT 18F-THK5351 was initially developed to target tau aggregates in neurofibrillary tangles. However, it was also shown to bind to an enzyme, monoamine oxidase B, which is highly expressed in the outer mitochondrial membrane of astrocytes. In a case with glioblastoma, both L-[methyl-11C]-methionine PET and 18F-THK5351 PET showed increased uptake in the tumor. On the other hand, in another case with primary central nervous system lymphoma, L-[methyl-11C]-methionine PET showed increased uptak...
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#1Yoichiro Tohi (Kagawa University)H-Index: 4
#2Satoshi Harada (Kagawa University)
Last. Mikio Sugimoto (Kagawa University)H-Index: 12
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6p21 translocation renal cell carcinoma (RCC) harboring TFEB gene fusion is a newly classified microphthalmia-associated transcription (MiT) factor-family translocation RCC with early onset. We present a case of 78-year-old man with a 6p21 translocation RCC that was diagnosed after partial nephrectomy for an incidental renal tumor on computed tomography (CT). Unenhanced CT showed a 20 mm, mildly low-density mass in the right kidney. Contrast-enhanced CT showed a heterogeneous and prolonged, mild...
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#1Yuka YamamotoH-Index: 35
#2Katsuya MitamuraH-Index: 3
Last. Yoshihiro NishiyamaH-Index: 40
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ABSTRACT Gitelman syndrome is an autosomal recessive renal tubulopathy. A 38-year-old woman was diagnosed with Gitelman syndrome. Eight years later, 18F-FDG PET/CT was performed to evaluate recurrence of endometrial cancer. FDG PET images showed an extremely abnormal FDG biodistribution. They showed decreased brain uptake, increased cardiac muscle uptake, and diffuse increased muscle and adipose tissue uptake. This pattern is similar to high insulin state; however, her glucose level was normal, ...
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#1Katsuya MitamuraH-Index: 3
#2Takashi NorikaneH-Index: 7
Last. Yoshihiro NishiyamaH-Index: 40
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ABSTRACT Tumefactive demyelinating lesions have been appreciated as part of the clinical and radiological spectrum of myelin oligodendrocyte glycoprotein antibody-associated disease. A 63-year-old woman was followed up for myelin oligodendrocyte glycoprotein antibody-associated disease. Two years later, she presented with right facial paralysis. T2-weighted MRI scan demonstrated a high-signal-intensity area with edematous change in the right frontal lobe, and partial enhancement was shown on con...
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#1Takashi Norikane (Kagawa University)H-Index: 7
#2Katsuya Mitamura (Kagawa University)H-Index: 3
Last. Yoshihiro Nishiyama (Kagawa University)H-Index: 40
view all 9 authors...
PURPOSE To elucidate the biological association between tumor proliferation, tumor infiltration and neovascularization, we analyzed the association between volumetric information of 4'-[methyl-11C]thiothymidine (4DST) positron emission tomography (PET) and fluid-attenuated inversion recovery (FLAIR) and T1-weighted gadopentetate dimeglumine (Gd)-enhanced magnetic resonance imaging (MRI), in patients with newly diagnosed glioma. METHODS A total of 23 patients with newly diagnosed glioma who under...
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#1Mitsumasa Murao (Kagawa University)
#2Takashi Norikane (Kagawa University)H-Index: 7
Last. Yoshihiro Nishiyama (Kagawa University)H-Index: 40
view all 10 authors...
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#1Kanako Chujo (Kagawa University)
#2Takashi Norikane (Kagawa University)H-Index: 7
Last. Yoshihiro Nishiyama (Kagawa University)H-Index: 40
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#1Kengo FujimotoH-Index: 2
#2Takashi NorikaneH-Index: 7
Last. Yoshihiro NishiyamaH-Index: 40
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ABSTRACT 18F-FDG accumulates not only in malignant lesions but also in infectious and inflammatory ones. 3'-deoxy-3'-18F-fluorothymidine (FLT) has been investigated as a promising PET tracer for evaluating tumor proliferating activity. We report a case of liver abscess during therapy of pancreatic cancer that underwent FDG PET/CT and FLT PET/CT studies. Although FDG PET/CT demonstrated several regions of increased uptake in the liver, FLT PET/CT showed no increased uptake in the liver.
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