Takeharu Yoshikawa

Summary

Affiliation: University of Tokyo
Country: Japan

Publications

  1. ncbi Diffusion tensor imaging of the brain: effects of distortion correction with correspondence to numbers of encoding directions
    Takeharu Yoshikawa
    Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Radiat Med 26:481-7. 2008
  2. ncbi Brain reorganization in patients with brachial plexus injury: a longitudinal functional MRI study
    Takeharu Yoshikawa
    Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo, Tokyo, Japan
    ScientificWorldJournal 2012:501751. 2012
  3. ncbi Diffusion-weighted magnetic resonance imaging of dural sinus thrombosis
    T Yoshikawa
    Department of Radiology, University of Tokyo School of Medicine, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Neuroradiology 44:481-8. 2002
  4. ncbi Brachial plexus injury: clinical manifestations, conventional imaging findings, and the latest imaging techniques
    Takeharu Yoshikawa
    Department of Computational Diagnostic Radiology and Preventive Medicine, University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo, Tokyo 113 8655, Japan
    Radiographics 26:S133-43. 2006
  5. ncbi Meandering main pancreatic duct as a relevant factor to the onset of idiopathic recurrent acute pancreatitis
    Wataru Gonoi
    Department of Radiology, Graduate School of Medicine, The University of Tokyo, Bunkyo ku, Tokyo, Japan
    PLoS ONE 7:e37652. 2012
  6. ncbi Automatic categorization of anatomical landmark-local appearances based on diffeomorphic demons and spectral clustering for constructing detector ensembles
    Shouhei Hanaoka
    Department of Radiology, Graduate School of Medicine, The University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo ku, Tokyo, Japan
    Med Image Comput Comput Assist Interv 15:106-13. 2012
  7. ncbi Automated segmentation method for spinal column based on a dual elliptic column model and its application for virtual spinal straightening
    Shouhei Hanaoka
    Division of Radiology and Biomedical Engineering, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
    J Comput Assist Tomogr 34:156-62. 2010
  8. ncbi Entorhinal cortex volume measured with 3T MRI is positively correlated with the Wechsler Memory Scale-Revised logical/verbal memory score for healthy subjects
    Masami Goto
    Department of Radiological Technology, Graduate School of Medicine, University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Neuroradiology 53:617-22. 2011
  9. ncbi Radiology reading-caused fatigue and measurement of eye strain with critical flicker fusion frequency
    Eriko Maeda
    Department of Radiology, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
    Jpn J Radiol 29:483-7. 2011
  10. ncbi Bezier surface reformation: an original visualization technique of cervical nerve roots on myelographic CT
    Naoki Yoshioka
    Department of Radiology, The University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
    Radiat Med 24:600-4. 2006

Collaborators

Detail Information

Publications24

  1. ncbi Diffusion tensor imaging of the brain: effects of distortion correction with correspondence to numbers of encoding directions
    Takeharu Yoshikawa
    Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Radiat Med 26:481-7. 2008
    ..The aim of the study was to estimate the effect of distortion correction with correspondence to numbers of encoding directions to acquire diffusion tensor imaging (DTI) of improved quality...
  2. ncbi Brain reorganization in patients with brachial plexus injury: a longitudinal functional MRI study
    Takeharu Yoshikawa
    Department of Computational Diagnostic Radiology and Preventive Medicine, The University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo, Tokyo, Japan
    ScientificWorldJournal 2012:501751. 2012
    ..035). The AI of the second fMRI significantly decreased compared with that of the first fMRI (P = 0.045). Brain reorganization associates with peripheral nervous changes after BPI and after operation for functional reconstruction...
  3. ncbi Diffusion-weighted magnetic resonance imaging of dural sinus thrombosis
    T Yoshikawa
    Department of Radiology, University of Tokyo School of Medicine, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Neuroradiology 44:481-8. 2002
    ..Decrease of ADC value is presumed to reflect severe pathological conditions and indicate possible future development of infarction or hemorrhage...
  4. ncbi Brachial plexus injury: clinical manifestations, conventional imaging findings, and the latest imaging techniques
    Takeharu Yoshikawa
    Department of Computational Diagnostic Radiology and Preventive Medicine, University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo, Tokyo 113 8655, Japan
    Radiographics 26:S133-43. 2006
    ..Work-up will vary depending on the equipment used, the management policy of peripheral nerve surgeons, and, most important, the individual patient...
  5. ncbi Meandering main pancreatic duct as a relevant factor to the onset of idiopathic recurrent acute pancreatitis
    Wataru Gonoi
    Department of Radiology, Graduate School of Medicine, The University of Tokyo, Bunkyo ku, Tokyo, Japan
    PLoS ONE 7:e37652. 2012
    ..However, no previous study has investigated its clinical significance. We aimed to determine the non-biased prevalence and the effect of MMPD on idiopathic pancreatitis using non-invasive magnetic resonance (MR) technique...
  6. ncbi Automatic categorization of anatomical landmark-local appearances based on diffeomorphic demons and spectral clustering for constructing detector ensembles
    Shouhei Hanaoka
    Department of Radiology, Graduate School of Medicine, The University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo ku, Tokyo, Japan
    Med Image Comput Comput Assist Interv 15:106-13. 2012
    ..All of these trained detectors compose a detector ensemble to detect the target landmark. Evaluation with clinical CT datasets showed great improvement in the detection performance...
  7. ncbi Automated segmentation method for spinal column based on a dual elliptic column model and its application for virtual spinal straightening
    Shouhei Hanaoka
    Division of Radiology and Biomedical Engineering, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
    J Comput Assist Tomogr 34:156-62. 2010
    ..Results on a database of 16 patients indicate the applicability of our method to spines affected by scoliosis and multiple bone metastases...
  8. ncbi Entorhinal cortex volume measured with 3T MRI is positively correlated with the Wechsler Memory Scale-Revised logical/verbal memory score for healthy subjects
    Masami Goto
    Department of Radiological Technology, Graduate School of Medicine, University of Tokyo Hospital, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Neuroradiology 53:617-22. 2011
    ....
  9. ncbi Radiology reading-caused fatigue and measurement of eye strain with critical flicker fusion frequency
    Eriko Maeda
    Department of Radiology, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
    Jpn J Radiol 29:483-7. 2011
    ..The aim of this study was to investigate eye fatigue that could impair diagnostic accuracy by measuring the critical flicker fusion frequency (CFFF) before and after reading...
  10. ncbi Bezier surface reformation: an original visualization technique of cervical nerve roots on myelographic CT
    Naoki Yoshioka
    Department of Radiology, The University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
    Radiat Med 24:600-4. 2006
    ..The aim of this study was to assess the feasibility of an original reformation method of cervical myelographic computed tomography (CT) using the Bezier surface technique...
  11. ncbi Preoperative assessment of hilar cholangiocarcinoma using multidetector-row CT: correlation with histopathological findings
    Takeyuki Watadani
    Department of Radiology, School of Medicine, The University of Tokyo, Bunkyo ku, Tokyo, 113 8655, Japan
    Radiat Med 26:402-7. 2008
    ..Extent of tumor spread and lymph node metastasis were assessed with MDCT and compared with histopathological findings...
  12. ncbi MDCT demonstration of intraarticular gas in the glenohumeral joint and sternoclavicular joint with reference to arm position
    Haruhiko Ito
    Department of Radiology, Graduate School of Medicine, The University of Tokyo, Bunkyo ku, Tokyo, 113 8655, Japan
    Radiat Med 26:422-6. 2008
    ..Our purpose was to investigate the frequency of intraarticular gas in the glenohumeral joint and sternoclavicular joint, along with the influence of the patient's arm position...
  13. ncbi Normal aging in the central nervous system: quantitative MR diffusion-tensor analysis
    Osamu Abe
    Department of Radiology, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, 113 8655 Tokyo, Japan
    Neurobiol Aging 23:433-41. 2002
    ..001) with advancing age. Quantitative diffusion tensor analysis correlate with normal aging and may help in assessing normal age-related changes and serve as a standard for comparison with neurodegenerative disorders...
  14. ncbi Two-dimensional magnetic resonance digital subtraction angiography using array spatial sensitivity encoding techniques in the assessment of intracranial hemodynamics
    Harushi Mori
    Department of Radiology, Graduate School of Medicine, University of Tokyo, Japan
    Radiat Med 20:223-9. 2002
    ..CONCLUSION: ASSET improves the temporal resolution of 2D MRDSA without compromising spatial resolution...
  15. ncbi Spectrum of Epstein-Barr virus-related diseases: a pictorial review
    Eriko Maeda
    Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo, 113 8655, Japan
    Jpn J Radiol 27:4-19. 2009
    ..Awareness of their clinical settings and imaging spectrum contributes to early detection and early treatment of possibly life-threatening disorders...
  16. ncbi Pancreas divisum as a predisposing factor for chronic and recurrent idiopathic pancreatitis: initial in vivo survey
    Wataru Gonoi
    Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo 113 8655, Japan
    Gut 60:1103-8. 2011
    ..It is a controversial issue whether pancreas divisum (PD) induces pancreatitis. All previous studies have investigated this issue based on endoscopic procedures, which inevitably involve a selection bias...
  17. ncbi Ferumoxides-enhanced double-echo T2-weighted MR imaging in differentiating metastases from nonsolid benign lesions of the liver
    Ali S Arbab
    Department of Radiology, Yamanashi Medical University, Yamanashi, Japan
    Radiology 225:151-8. 2002
    ..To investigate whether ferumoxides-enhanced double-echo T2-weighted magnetic resonance (MR) imaging alone can allow differentiation of metastases from benign lesions in the noncirrhotic liver...
  18. ncbi Two-dimensional thick-slice MR digital subtraction angiography in the assessment of small to medium-size intracranial arteriovenous malformations
    H Mori
    Department of Radiology, Graduate School of Medicine, University of Tokyo, 7 3 1 Hongo, Bunkyo ku, Tokyo 113 8655, Japan
    Neuroradiology 45:27-33. 2003
    ..2D MRDSA can thus demonstrate haemodynamic features of AVMs. It can be employed as a less invasive, dynamic angiographic tool for follow-up of AVMs previously delineated by catheter angiography...
  19. ncbi Neuro-Behçet's disease: analysis of apparent diffusion coefficients
    A Kunimatsu
    Department of Radiology, Graduate School of Medicine, Tokyo University, 7 3 1 Hongo, Bunkyo ku 113 8655, Tokyo, Japan
    Neuroradiology 45:524-7. 2003
    ..Increased diffusivity in both active and chronic phases in NBD is different from the pattern in ischaemic infarcts, so that ADC analysis might be helpful for differentiating between these conditions...
  20. ncbi A quantitative method for estimating hepatic blood flow using a dual-input single-compartment model
    S Miyazaki
    Department of Medical Physics and Engineering, Faculty of Health Science, Graduate School of Medicine, Osaka University, Osaka 565 0871, Japan
    Br J Radiol 81:790-800. 2008
    ..Our method is therefore promising for the evaluation of hepatic blood flow in various liver diseases because it allows us to evaluate arterial hepatic blood flow and portal hepatic blood flow separately and visually...
  21. ncbi Extranodal lymphoblastic lymphoma of suspected B-cell lineage in the gingiva of a racehorse, accompanied by mandibular osteolysis
    M Oikawa
    Addresses of authors Equine Research Institute, Japan Racing Association, 321 4 Tokami, Utsunomiya, Tochigi, 320 0856, Japan
    J Vet Med A Physiol Pathol Clin Med 50:151-5. 2003
    ..We consider that the osteolysis resulted from activation of osteoclasts by proliferation of the tumour cells...
  22. ncbi Hemorrhagic brain metastases with high signal intensity on diffusion-weighted MR images. A case report
    H Mori
    Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan
    Acta Radiol 43:563-6. 2002
    ..The signal pattern probably reflected intralesional hemorrhage. The present report adds to the growing literature regarding the differential diagnosis of ring-enhancing brain lesions...
  23. ncbi Pyloric stenosis in a patient with systemic lupus erythematosus
    H Takano
    National Institute for Environmental Studies, Tsukuba, Japan
    Endoscopy 34:846. 2002
  24. ncbi Insulinoma with subsequent association of Zollinger-Ellison syndrome
    N Mizuno
    Department of Internal Medicine II, Nagoya University School of Medicine
    Intern Med 40:386-90. 2001
    ..On autopsy, histologic examination revealed a mixed acinar-endocrine carcinoma of the pancreas. Immunohistochemical stains were positive for insulin, gastrin, and alpha1-antitrypsin...