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Living Reference Work Entry In depth
Izumi Shikibu
Izumi Shikibu (born c. 976), one of the Thirty-Six Medieval Immortal Poets (Chūko Sanjū-rokkasen), is a writer and a poet from the Heian period (794–1185). She wrote various types of waka poems from both female a...
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Article
Pre-acquired CT-based attenuation correction with automated headrest removal for a brain-dedicated PET system
Attenuation correction (AC) is essential for quantitative positron emission tomography (PET) images. Attenuation coefficient maps (μ-maps) are usually generated from computed tomography (CT) images when PET-CT...
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Article
Open AccessSmall nuclei identification with a hemispherical brain PET
To confirm the performance of the first hemispherical positron emission tomography (PET) for the brain (Vrain) that we developed to visualise the small nuclei in the deep brain area, we compared 18F-fluorodeoxygl...
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Article
Open AccessBrain PET motion correction using 3D face-shape model: the first clinical study
Head motions during brain PET scan cause degradation of brain images, but head fixation or external-maker attachment become burdensome on patients. Therefore, we have developed a motion correction method that ...
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Article
Marker-less and calibration-less motion correction method for brain PET
Marker-less head motion correction methods have been well-studied; however, no reports discussing potential issues in positional calibration between a PET system and an external sensor remain limited. In this ...
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Article
Open AccessInfluence of antidepressant use on 123I-MIBG heart and lung uptakes in the diagnosis of Lewy body disease
The clinical significance of decreased physiological lung uptake of 123I-metaiodobenzylguanidine (MIBG) has not been well investigated. This study aimed to elucidate the association between a decrease in lung MIB...
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Article
Open AccessA design of forceps-type coincidence radiation detector for intraoperative LN diagnosis: clinical impact estimated from LNs data of 20 esophageal cancer patients
To reduce postoperative complications, intraoperative lymph node (LN) diagnosis with 18F-fluoro-2-deoxy-D-glucose (FDG) is expected to optimize the extent of LN dissection, leading to less invasive surgery. Howev...
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Article
Open AccessSimultaneous in vivo imaging with PET and SPECT tracers using a Compton-PET hybrid camera
Positron-emission tomography (PET) and single-photon-emission computed tomography (SPECT) are well-established nuclear-medicine imaging methods used in modern medical diagnoses. Combining PET with 18F-fluorodeoxy...
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Article
THz ESR Study of Peculiar Co Pyrochlore System GeCo2O4 Using Pulsed High Magnetic Field
THz electron spin resonance (ESR) measurements of the spinel compound GeCo2O4, which consists of the Co2+ pyrochlore structure, were performed. The temperature dependence measurements revealed new antiferromagnet...
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Article
Open AccessOxygen sensing ability of positronium atom for tumor hypoxia imaging
Positronium (Ps), a hydrogen-like atom consisting of a positron and an electron, is efficiently formed in the human body during positron emission tomography (PET) examination, and its decay rate into gamma-ray...
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Article
Michel M. Ter-Pogossian (1925–1996): a pioneer of positron emission tomography weighted in fast imaging and Oxygen-15 application
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Article
Open AccessThree-Year Follow-Up of High-Dose Ubiquinol Supplementation in a Case of Familial Multiple System Atrophy with Compound Heterozygous COQ2 Mutations
We report a 3-year follow-up of high-dose ubiquinol supplementation in a case of familial multiple system atrophy (MSA) with compound heterozygous nonsense (R387X) and missense (V393A) mutations in COQ2. A high-d...
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Article
Open AccessA case of recurrent depressive disorder presenting with Alice in Wonderland syndrome: psychopathology and pre- and post-treatment FDG-PET findings
Alice in Wonderland syndrome (AIWS) is a rare neuropsychiatric syndrome that typically manifests in distortion of extrapersonal visual image, altered perception of one’s body image, and a disturbed sense of th...
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Article
Open AccessAn automated voxel-based method for calculating the reference value for a brain tumour metabolic index using 18F-FDG-PET and 11C-methionine PET
The tumour-to-normal ratio (T/N) is a representative index reflecting brain tumour activity by 18F-fluorodeoxyglucose (FDG) and 11C-methionine (MET) PET. We proposed a new automated method of calculating the norm...
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Article
Open AccessGenetic and epigenetic stability of oligodendrogliomas at recurrence
Among diffuse gliomas, oligodendrogliomas show relatively better prognosis, respond well to radiotherapy and chemotherapy, and seldom progress to very aggressive tumors. To elucidate the genetic and epigenetic...
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Article
Potential use of 18F-FDG-PET/CT to visualize hypermetabolism associated with muscle pain in patients with adult spinal deformity: a case report
Patients with adult spinal deformity (ASD) are surgically treated for pain relief; however, visualization of the exact origin of the pain with imaging modalities is still challenging. We report the first case ...
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Article
Open AccessEvaluation of 18F-FDG uptake for detecting lymph node metastasis of gastric cancer: a prospective pilot study for one-to-one comparison of radiation dose and pathological findings
Gastric cancer exhibits various degrees of fluorine F-18 fluorodeoxyglucose (18F-FDG) uptake on positron emission tomography/computed tomography (PET/CT). We evaluated the relationship between 18F-FDG uptake and ...
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Article
Findings from positron emission tomography and genetic analyses for cerebellar liponeurocytoma
Cerebellar liponeurocytoma is a rare tumor that usually develops in adult patients, and is categorized as World Health Organization grade II. Because of the small number of reports on its radiological and path...
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Article
Detection of a metastatic lesion and tiny yolk sac tumors in two teenage patients by FDG-PET: report of two cases
We herein report the efficacy of FDG-PET for detecting yolk sac tumors in two teenage patients. One patient had a rare bone metastasis and the other had tiny recurrent lesions at the mediastinum. Both lesions ...
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Article
Voxel-based comparison of preoperative FDG-PET between mesial temporal lobe epilepsy patients with and without postoperative seizure-free outcomes
This study aims to elucidate differences in preoperative cerebral glucose metabolism between patients who did and did not become seizure free after unilateral mesial temporal lobe epilepsy (mTLE) surgery. We h...
