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  • SAGE Publications  (4)
  • Kao, Hung-Wen  (4)
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  • SAGE Publications  (4)
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  • 1
    Online Resource
    Online Resource
    Modifications to the McDonald MRI dissemination in space criteria for use in Asians with classic multiple sclerosis: the Taiwanese experience
    SAGE Publications ; 2010
    In:  Multiple Sclerosis Journal Vol. 16, No. 10 ( 2010-10), p. 1213-1219
    Details
    In: Multiple Sclerosis Journal, SAGE Publications, Vol. 16, No. 10 ( 2010-10), p. 1213-1219
    Abstract: Background: The McDonald MRI dissemination in space criteria have been found to be less sensitive when applied to Asians with classic multiple sclerosis. The Asian neurological community thus proposed modifications to the criteria with reduction of minimal number of T2 lesions from nine to four, and removal of restriction on spinal cord lesion length and morphology for use in Asians. Objective: The study is to examine the accuracy of modified MRI dissemination in space criteria for prediction of conversion from clinically isolated syndrome to definite multiple sclerosis according to patients’ baseline MRI. Methods: From 2001 to 2007, we recruited 67 patients with clinically isolated syndrome. They had been followed-up until development of definite multiple sclerosis or remaining as clinically isolated syndrome for more than 2 years. The non-converters were taken as negative cases. The 67 patients’ baseline MRIs were evaluated by two radiologists and determined as either fulfilling or not fulfilling McDonald and modified MRI criteria for dissemination in space. Results: Thirty-two patients converted to definite multiple sclerosis and 35 did not. The modified criteria are slightly more sensitive (53.1% vs. 50.0%) and accurate (77.6% vs. 76.1%) as compared with McDonald criteria. However, further reduction of the cutoff of abnormal MRI criteria from three of four to two of four criteria yields best sensitivity (71.9%) and accuracy (83.6%). Conclusions: Modifications to the McDonald MRI dissemination in space criteria (by using fewer T2 lesions, removal of the restriction on the spinal cord lesion and reduction of the cutoff of MRI criteria) are more appropriate for use in the Taiwanese population for the diagnosis of classic multiple sclerosis.
    Type of Medium: Online Resource
    ISSN: 1352-4585 , 1477-0970
    URL: Article
    DOI: 10.1177/1352458510376179
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2010
    detail.hit.zdb_id: 2008225-3
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Volume-dependent overestimation of spontaneous intracerebral hematoma volume by the ABC/2 formula
    SAGE Publications ; 2009
    In:  Acta Radiologica Vol. 50, No. 3 ( 2009-04), p. 306-311
    Details
    In: Acta Radiologica, SAGE Publications, Vol. 50, No. 3 ( 2009-04), p. 306-311
    Abstract: Background: Although the ABC/2 formula has been widely used to estimate the volume of intracerebral hematoma (ICH), the formula tends to overestimate hematoma volume. The volume-related imprecision of the ABC/2 formula has not been documented quantitatively. Purpose: To investigate the volume-dependent overestimation of the ABC/2 formula by comparing it with computer-assisted volumetric analysis (CAVA). Material and Methods: Forty patients who had suffered spontaneous ICH and who had undergone non-enhanced brain computed tomography scans were enrolled in this study. The ICH volume was estimated based on the ABC/2 formula and also calculated by CAVA. Based on the ICH volume calculated by the CAVA method, the patients were divided into three groups: group 1 consisted of 17 patients with an ICH volume of less than 20 ml; group 2 comprised 13 patients with an ICH volume of 20 to 40 ml; and group 3 was composed of 10 patients with an ICH volume larger than 40 ml. Results: The mean estimated hematoma volume was 43.6 ml when using the ABC/2 formula, compared with 33.8 ml when using the CAVA method. The mean estimated difference was 1.3 ml, 4.4 ml, and 31.4 ml for groups 1, 2, and 3, respectively, corresponding to an estimation error of 9.9%, 16.7%, and 37.1% by the ABC/2 formula ( P 〈 0.05). Conclusion: The ABC/2 formula significantly overestimates the volume of ICH. A positive association between the estimation error and the volume of ICH is demonstrated.
    Type of Medium: Online Resource
    ISSN: 0284-1851 , 1600-0455
    URL: Article
    DOI: 10.1080/02841850802647039
    RVK:
    XA 10000
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2009
    detail.hit.zdb_id: 2024579-8
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    Online Resource
  • 3
    Online Resource
    Online Resource
    Typical Meningioma with Atypical MR Imaging Features Masquerading Malignancy : A Case Report
    SAGE Publications ; 2007
    In:  The Neuroradiology Journal Vol. 20, No. 5 ( 2007-10), p. 541-544
    Details
    In: The Neuroradiology Journal, SAGE Publications, Vol. 20, No. 5 ( 2007-10), p. 541-544
    Abstract: Meningiomas are the most common extraaxial tumors of intracranial neoplasms. They are usually benign with characteristic pathologic and imaging features. However, a histologically typical meningioma can have unusual or misleading imaging features that may not be suggestive of meningioma. Unusual imaging features such as large meningeal cysts, ring enhancement, and various metaplastic changes can be particularly misleading. Here we present a fibrous meningioma with atypical magnetic resonance (MR) imaging features in a 76-year-old woman.
    Type of Medium: Online Resource
    ISSN: 1971-4009 , 2385-1996
    URL: Article
    DOI: 10.1177/197140090702000511
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2007
    detail.hit.zdb_id: 2622347-8
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  • 4
    Online Resource
    Online Resource
    Diffuse Cerebral Vasculopathy in a HIV-Positive Patient with Recurrent Strokes
    SAGE Publications ; 2008
    In:  The Neuroradiology Journal Vol. 21, No. 1 ( 2008-02), p. 53-56
    Details
    In: The Neuroradiology Journal, SAGE Publications, Vol. 21, No. 1 ( 2008-02), p. 53-56
    Abstract: The causes of ischemic stroke in the young adult are diverse. Human immunodeficiency virus (HIV) infection-related vasculopathy is usually not included in the list of differential diagnoses. HIV-positive patients may present with acute neurologic dysfunction of different causes, among which cerebral infarction is an uncommon one. Herein, we report a HIV-infected young man who suffered from recurrent ischemic strokes with evidence of cerebral vasculopathy on serial magnetic resonance images.
    Type of Medium: Online Resource
    ISSN: 1971-4009 , 2385-1996
    URL: Article
    DOI: 10.1177/197140090802100106
    Language: English
    Publisher: SAGE Publications
    Publication Date: 2008
    detail.hit.zdb_id: 2622347-8
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    Online Resource
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