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Sekiguchi A, Ishiyama H, Satoh T, Kawakami S, Komori S, Soda I, Tabata K, Takahashi R, Iwamura M, Hayakawa K. Eight-Year Experience of Iodine-125 Monotherapy for Japanese Men With Localized Prostate Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yogo K, Hayakawa K, Kunieda E. Verification of a Commercial Monte Carlo Electron Dose-Calculation Algorithm Under Clinical Use for Treatment of Breast and Total Scalp Irradiation. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Yoshida S, Faria AV, Oishi K, Kanda T, Yamori Y, Yoshida N, Hirota H, Iwami M, Okano S, Hsu J, Li X, Jiang H, Li Y, Hayakawa K, Mori S. Anatomical characterization of athetotic and spastic cerebral palsy using an atlas-based analysis. J Magn Reson Imaging 2013. [DOI: 10.1002/jmri.24377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Ohno I, Hayashi H, Aonuma K, Horio M, Kashihara N, Okada H, Komatsu Y, Tamura S, Awai K, Yamashita Y, Kuwatsuru R, Hirayama A, Saito Y, Murohara T, Tamaki N, Sato A, Takayama T, Imai E, Yasuda Y, Koya D, Tsubakihara Y, Horie S, Korogi Y, Narumi Y, Hayakawa K, Daida H, Node K, Kubota I. Guidelines on the use of iodinated contrast media in patients with kidney disease 2012: digest version. Clin Exp Nephrol 2013; 17:441-79. [DOI: 10.1007/s10157-013-0843-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Yoshida S, Faria AV, Oishi K, Kanda T, Yamori Y, Yoshida N, Hirota H, Iwami M, Okano S, Hsu J, Li X, Jiang H, Li Y, Hayakawa K, Mori S. Anatomical characterization of athetotic and spastic cerebral palsy using an atlas-based analysis. J Magn Reson Imaging 2013; 38:288-98. [PMID: 23737247 DOI: 10.1002/jmri.23931] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2012] [Accepted: 10/02/2012] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To analyze diffusion tensor imaging (DTI) in two types of cerebral palsy (CP): the athetotic-type and the spastic-type, using an atlas-based anatomical analysis of the entire brain, and to investigate whether these images have unique anatomical characteristics that can support functional diagnoses. MATERIALS AND METHODS We retrospectively analyzed the DTI of seven children with athetotic-type, 11 children with spastic-type, and 20 healthy control children, all age-matched. The severity of motor dysfunction was evaluated with the Gross Motor Function Classification System (GMFCS). The images were normalized using a linear transformation, followed by large deformation diffeomorphic metric mapping. For 205 parcellated brain areas, the volume, fractional anisotropy, and mean diffusivity were measured. Principal component analysis (PCA) was performed for the Z-scores of these parameters. RESULTS The GMFCS scores in athetotic-type were significantly higher than those in spastic-type (P < 0.001). PCA extracted anatomical components that comprised the two types of CP, as well as the severity of motor dysfunction. In the athetotic group, the abnormalities were more severe than in the spastic group. In the spastic group, significant changes were concentrated in the lateral ventricle and periventricular structures. CONCLUSION Our results quantitatively delineated anatomical characteristics that reflected the functional findings in two types of CP.
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Uemura H, Hayakawa K, Hamada Y, Yamamoto K, Kutsuna S, Ujiie M, Takeshita N, Kato Y, Kanagawa S, Shimada K, Kirikae T, Ohmagari N. P324 Parvimonas micra as a causative organism of spondylodiscitis: A report of 3 cases. Int J Antimicrob Agents 2013. [DOI: 10.1016/s0924-8579(13)70565-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kishida T, Cui FD, Ohgitani E, Gao F, Hayakawa K, Mazda O. High pressure treatment under subfreezing temperature results in drastic inactivation of enveloped and non-enveloped viruses. Biotechnol Lett 2013; 35:1297-301. [DOI: 10.1007/s10529-013-1204-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 03/28/2013] [Indexed: 11/24/2022]
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A. Kato T, Yamauchi Y, Horikawa H, Monji A, Mizoguchi Y, Seki Y, Hayakawa K, Utsumi H, Kanba S. Neurotransmitters, Psychotropic Drugs and Microglia: Clinical Implications for Psychiatry. Curr Med Chem 2013. [DOI: 10.2174/092986713804870800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Takeuchi H, Yamakawa R, Nishimatsu T, Takeuchi Y, Hayakawa K, Maruyama N. Design of rapidly disintegrating drug delivery films for oral doses with hydoxypropyl methylcellulose. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50068-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Nakamura S, Asai H, Akita S, Aoyama Y, Kamikubo Y, Sugama Y, Takei H, Nishio T, Maruyama K, Hayakawa K. Development of Fast and High-spatial-resolution 3-dimensional Dosimetry Equipment for Both the Narrow Beam and the Broad Beam in Proton Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yamazaki T, Kodaira T, Ota Y, Akimoto T, Wada H, Hiratsuka J, Nishimura Y, Ishihara S, Nonoshita T, Hayakawa K. Retrospective Analysis of Definitive Radiation Therapy for Neck Node Metastasis From Unknown Primary Tumor: Japanese Radiation Oncology Study Group Study. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kamikubo Y, Takaki R, Asai H, Akita S, Yokosawa J, Nakamura S, Takei H, Maruyama K, Hayakawa K. A New Clinical Dose-Measuring Tool for Electron Beam Therapy Using Plastic Scintillator. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.2248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nishimura Y, Harada H, Soejima T, Tsujino K, Hayakawa K, Kozuka T, Tanaka M, Sasaki T, Yamamoto N, Nakagawa K. Phase II Study of Nimotuzumab in Combination With Concurrent Chemoradiation Therapy (CRT) in Patients With Locally Advanced Non-small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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64
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Ishiyama H, Satoh T, Kitano M, Tabata K, Kotani S, Masaomi I, Shinji K, Masaki K, Baba S, Hayakawa K. High-dose-rate (HDR) Brachytherapy and Hypofractionated External Beam Radiation Therapy Combined With Long-term Hormonal Therapy for High-risk Prostate Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ogura A, Hayakawa K, Maeda F, Saeki F, Syukutani A, Shibutani S, Kuroda E. Differential diagnosis of vertebral compression fracture using in-phase/opposed-phase and short TI inversion recovery imaging. Acta Radiol 2012; 53:450-5. [PMID: 22416260 DOI: 10.1258/ar.2012.110524] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Magnetic resonance imaging (MRI) is highly useful for detecting diseases of the bone marrow. The sensitivity for detecting compression fracture is very high, but specificity is low for differential diagnosis between malignant and benign cases. PURPOSE To evaluate the usefulness of in-phase/opposed-phase and short TI inversion recovery (STIR) magnetic resonance imaging (MRI) of bone marrow for differentiation between benign and malignant vertebral compression fractures. MATERIAL AND METHODS A retrospective review of 66 patients with 70 vertebral compression fractures was performed. The signal intensity ratio (SIR) defined as SIR (opposed/in) was calculated from in-phase/opposed-phase MR images, and the signal intensity ratio as SIR (STIR) was calculated from STIR MR images. The relationships between values of SIR (opposed/in) and SIR (STIR) and the differential diagnosis of malignant vs. benign fractures were considered. RESULTS When SIR (opposed/in) was less than 1.0, bone marrow was benign. The bone marrow was malignant when both SIR (opposed/in) was greater than 1.0 and SIR (STIR) was less than 2.0. CONCLUSION In cases of acute compression fracture, malignant bone marrow showed SIR(STIR) values less than 2.0 and SIR (in/opposed) greater than 1.0. In contrast, benign bone marrow showed SIR (STIR) values greater than 2.5. For chronic compression fracture, malignant bone marrow showed SIR (in/opposed) greater than 1.0. Bone marrow was benign in all cases with SIR (in/opposed) less than 1.0.
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Tachiiri S, Tanaka K, Kosuga T, Yanagawa M, Fukushima H, Hayakawa K. EP-1138 ANALYSIS OF TUMRO COVERAGE IN IMAGE-GUIDED POST-OPERATIVE VAGINAL HDR BRACHYTHERAPY OF CERVICAL CANCER. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71471-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kobayashi R, Shiraishi K, Niibe Y, Hayakawa K, Takemoto M, Kaneyasu Y, Kanazawa S, Nagata Y, Nakagawa K. EP-1009 INTENSIVE LOCAL RADIATION THERAPY FOR BONE-ONLY METASTASIS IN BREAST CANCER: A MULTIINSTITUTIONAL STUDY IN JAPAN. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71342-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Hayashi H, Narumi Y, Takagi R, Takehara Y, Arai Y, Kuwatsuru R, Korogi Y, Sugimoto H, Tsushima Y, Hayakawa K, Fukuda K, Tamura S, Kuribayashi S. Questionnaires for examinations using iodinated contrast media and their grades of recommendation: Japan Radiological Society/Japanese College of Radiology Joint Committee on Contrast Media Safety. Jpn J Radiol 2011; 29:744-8. [PMID: 22009429 DOI: 10.1007/s11604-011-0616-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 05/27/2011] [Indexed: 11/29/2022]
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Shiraishi K, Niibe Y, Nakagawa K, Takemoto M, Kaneyasu Y, Kanazawa S, Nagata Y, Hayakawa K. Impact of Intensive Local Control with Radiation Therapy for Bone-only Oligo-recurrence on Long-term Results in Breast Cancer: A Multi-institutional Study in Japan. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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70
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Asai H, Watanabe T, Takenaka S, Akita S, Kamikubo Y, Oomori K, Takei H, Hayakawa K, Saitou H, Maruyama K. A New Method For Real-time Confirmation Of Information From The Irradiation Area Of X-ray Therapy. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Akita S, Asai H, Tomori S, Kamikubo Y, Yokozawa J, Matsubayashi F, Takahashi T, Takei H, Hayakawa K, Maruyama K. Development Of A New Quality Assurance (QA) Tool For VMAT Using A Plastic Scintillator. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Fraser ME, Sun T, Hayakawa K. ADP-Mg 2+bound to the ATP-grasp domain of human ATP-citrate lyase. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Yoshida S, Hayakawa K, Oishi K, Mori S, Kanda T, Yamori Y, Yoshida N, Hirota H, Iwami M, Okano S, Matsushita H. Athetotic and Spastic Cerebral Palsy: Anatomic Characterization Based on Diffusion-Tensor Imaging. Radiology 2011; 260:511-20. [DOI: 10.1148/radiol.11101783] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kiyokawa K, Tai Y, Yanaga H, Inoue Y, Hayakawa K, Hirano M, Shigemori M. Evaluation with three-dimensional computed tomography after anterior skull base reconstruction using two musculopericranial flaps and a grafted bone. Skull Base Surg 2011; 9:221-6. [PMID: 17171093 PMCID: PMC1656732 DOI: 10.1055/s-2008-1058150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Postoperative evaluation by three-dimensional (3D) computed tomography (CT) was performed in 15 patients who underwent anterior skull base reconstruction using two musculopericranial flaps and a grafted bone sandwiched between the two flaps. Especially in the case of large bone grafts (4 x 4 cm or more), the graft was positioned with the convex side facing upward into the cranial cavity to avoid creating an intracranial dead space. The extent of the absorption and changes in the contour of the grafted bone were evaluated. Imaging was done at a CT level of 150 using a Proceed 3-D CT scanner (Yokogawa Medical Co., Tokyo, Japan). Donor bone for grafting to the skull base was harvested the cranium in 10 patients and the ilium in 5 others. Patients ranged in age from 7 to 76 years (mean, 47); there were 10 men and 5 women. The grafted bone ranged in size from 1 x 2 cm to 5 x 8 cm (1 x 2 cm to about 4 x 3 cm: 10 patients; 4 x 4 to about 5 x 8 cm: 5 patients).No marked absorption of grafted bone was seen in these 15 patients, and no brain hernia occurred. In patients with large bone grafts (4 x 4 cm to about 5 x 8 cm), a graft that had been positioned with the convex side facing upward into cranial cavity at the time of transplant was subsequently observed to be transformed into a downward convex contour of normal skull base. Fostoperative infection did not occur because of the dead space nor were there any symptom of pressure on the brain because of the upward convexity of the grafted bone.The present reconstructive method is not only a minimum invasive but also a safe and reliable method for anterior skull base surgery.
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Tomizawa R, Watanabe M, Inoue N, Takemura K, Hidaka Y, Akamizu T, Hayakawa K, Iwatani Y. Association of functional GITR gene polymorphisms related to expression of glucocorticoid-induced tumour necrosis factor-receptor (GITR) molecules with prognosis of autoimmune thyroid disease. Clin Exp Immunol 2011; 165:141-7. [PMID: 21592113 DOI: 10.1111/j.1365-2249.2011.04414.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
The glucocorticoid-induced tumour necrosis factor (TNF)-receptor (GITR) affects the functions of regulatory T (T(reg)) and effector T (T(eff)) cells, but the significance of this phenomenon is still unclear. To examine the association of single nucleotide polymorphisms (SNPs) in the GITR gene with the expression of GITR molecules on T cells and with the pathological conditions in patients with autoimmune thyroid disease (AITD), we examined the frequencies of four candidate SNPs in AITD patients and healthy volunteers by restriction enzyme analysis and direct sequence analyses. We also analysed the GITR expression on peripheral T(reg) and T(eff) cells in AITD patients by three-colour flow cytometry. The CC genotype in the rs3753348 C/G SNP was significantly more frequent in patients with mild Hashimoto's disease (HD) than in those with severe HD [P = 0·0117, odds ratio (OR) = 3·13]. The AA genotype in the rs2298213 A/G SNP was significantly more frequent in patients with mild HD than in patients with severe HD (P = 0·010, OR = 4·43). All patients and healthy individuals had the GG genotype in rs60038293 A/G and rs11466696 A/G SNPs. The proportions of GITR(+) cells in T(reg) and T(eff) cells were significantly higher in AITD patients with the CC genotype of the rs3753348 SNP than in those with the GG genotype (P = 0·004 and P = 0·011, respectively). In conclusion, the rs3753348 C/G SNP in the GITR is associated with HD prognosis and expression on T(reg) and T(eff) cells.
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