مقاله علمی

  • The predictive values of two MRI and MRV neuroimaging tests in headache patients without neurologic symptoms

     Department of imaging, Milad Hospital,TEHRAN, IRAN

    Abstract

    Background and Purpose: This study conducted to evaluate the predictive values of two MRI and MRV diagnostic tests in headache patients with different non-specific neurologic symptomssuch as blurred vision, nausea, and dizziness sings or all of them.

    Materials and Methods: The research population consisted of peoples (n: 54, male; n: 176, female) who referred to three Tehran hospitals, Departments of Neurology, were assigned into 2 groups based on their clinical symptoms, including: HG: patient only suffered from headaches; HBNDG: patients suffered from headache accompanied with one blurred vision, or nausea, and or dizziness sings or all of them. Then, brain MRI and MRV tests were performed for all subjects. There was a poor agreement between two neuroimaging tests in both HG and HBNDG patients. MRI test had low sensitivity in HG patients, HBNDG patients and in all participants. So MRI was a highly specific test in two groups. 

    Results: There was no significant difference between groups based on different clinical symptoms (P = 0.33) in age.  The female participants had significantly lower age in comparison with males (40.3 ± 0.97 vs. 45.5 ± 2.04, respectively, P = 0.005). MRV was a relatively sensitive test in all participants (≥ 50). Additionally, the specificity was moderate (nearly 64.5) in all groups.

    Conclusions: This investigation shows MRV is more sensitive than MRI for recognition of brain abnormalities in patients with headaches accompanied by nausea, dizziness, and blurred vision. It was suggested that the combination of these clinical symptoms with headache increase the diagnostic values of the MRV test.

    Keywords: MRI, MRV, neuroimaging, headache patients  

    ادامه مطلب

  • Preparation of Papers for Journals of The World Academy of Research in Science and Engineering

     

    First Author1, Second Author2, Third Author3

    1Affiliation, Country, Email

    2Affiliation, Country, Email

    3Affiliation, Country, Email

     

    Abstract

    These instructions give you guidelines for preparing papers for the Journals of The World Academy of Research in Science and Engineering. Use this document as a template if you are using Microsoft Word 6.0 or later. Otherwise, use this document as an instruction set. Define all symbols used in the abstract. Do not cite references in the abstract.

    Key words :About four key words or phrases in alphabetical order, separated by commas.

    1. 1.INTRODUCTION

    ادامه مطلب

  • Highlight a section that you want to designate with a certain style, then select the appropriate name on the style menu. The style will adjust your fonts and line spacing. Do not change the font sizes or line spacing to squeeze more text into a limited number of pages.

    1.1 Final Stage

    When you submit your final version, after your paper has been accepted, prepare it in two-column format, including figures and tables.

    1.2 Figures

    As said, to insert images in Word, position the cursor at the insertion point and either use Insert | Picture | From File or copy the image to the Windows clipboard and then Edit | Paste Special | Picture (with “Float over text” unchecked).

    The authors of the accepted manuscripts will be given a copyright form and the form should accompany your final submission.

    2. UNITS

    Use either SI (MKS) or CGS as primary units. (SI units are strongly encouraged.) English units may be used as secondary

    2.1 Figures and Tables

    Because the final formatting of your paper is limited in scale, you need to position figures and tables at the top and

    bottom of each column. Large figures and tables may span both columns. Place figure captions below the figures; place table titles above the tables. If your figure has two parts, include the labels “(a)” and “(b)” as part of the artwork. Please verify that the figures and tables you mention in the text actually exist. Do not put borders around the outside of your figures. Use the abbreviation “Figure.” even at the beginning of a sentence. Do not abbreviate “Table.” Tables are numbered with numerals.

    Figure axis labels are often a source of confusion. Use words rather than symbols. As an example, write the quantity “Magnetization,” or “Magnetization M,” not just “M.” Put units in parentheses. Do not label axes only with units. As in Figure 1, for example, write “Magnetization (A/m)” or “Magnetization (Am-1),” not just “A/m.” Do not label axes with a ratio of quantities and units. For example, write “Temperature (K),” not “Temperature/K.”

    Multipliers can be especially confusing. Write “Magnetization (kA/m)” or “Magnetization (103 A/m).” Do not write “Magnetization (A/m) ´ 1000” because the reader would not know whether the top axis label in Figure 1 meant 16000 A/m or 0.016 A/m. Figure labels should be legible, approximately 8 to 12 point type.

     

    Figure 1: Architecture of the Enhanced Fuzzy Resolution Mechanism using ANFIS

    Abbreviation Fullname
    age age in years
    sex sex (1 = male; 0 = female)
    cp chest pain type
    trestbps resting blood pressure (in mm Hg)
    chol serum cholestoral in mg/dl

    Table 1: Attributes of Cleveland dataset

    2.2 References

    Number citations consecutively in square brackets [1]. The sentence punctuation follows the brackets [2]. Multiple references [2], [3] are each numbered with separate brackets [1]–[3]. When citing a section in a book, please give the relevant page numbers [2]. In sentences, refer simply to the reference number, as in [3]. Do not use “Ref. [3]” or “reference [3]” except at the beginning of a sentence: “Reference [3] shows... .” Number footnotes separately in superscripts (Insert | Footnote).Equations

    Number equations consecutively with equation numbers in parentheses flush with the right margin, as in (1). First use the equation editor to create the equation. Then select the “Equation” markup style. Press the tab key and write the equation number in parentheses. To make your equations more compact, you may use the solidus ( / ), the exp function, or appropriate exponents. Use parentheses to avoid ambiguities in denominators. Punctuate equations when they are part of a sentence, as in

      (1)

    Be sure that the symbols in your equation have been defined before the equation appears or immediately following. Italicize symbols (T might refer to temperature, but T is the unit tesla). Refer to “(1),” not “Eq. (1)” or “equation (1),” except at the beginning of a sentence: “Equation (1) is... .”

    2.4 Other Recommendations

    Use one space after periods and colons. Hyphenate complex modifiers: “zero-field-cooled magnetization.” Avoid dangling participles, such as, “Using (1), the potential was calculated.” [It is not clear who or what used (1).] Write instead, “The potential was calculated by using (1),” or “Using (1), we calculated the potential.”

    Use a zero before decimal points: “0.25,” not “.25.” Use “cm3,” not “cc.” Indicate sample dimensions as “0.1 cm ´ 0.2 cm,” not “0.1 ´ 0.2 cm2.” The abbreviation for “seconds” is “s,” not “sec.” Do not mix complete spellings and abbreviations of units: use “Wb/m2” or “webers per square meter,” not “webers/m2.” When expressing a range of values, write “7 to 9” or “7-9,” not “7~9.”

    A parenthetical statement at the end of a sentence is punctuated outside of the closing parenthesis (like this). (A parenthetical sentence is punctuated within the parentheses.) In American English, periods and commas are within quotation marks, like “this period.” Other punctuation is “outside”! Avoid contractions; for example, write “do not” instead of “don’t.” The serial comma is preferred: “A, B, and C” instead of “A, B and C.”

    If you wish, you may write in the first person singular or plural and use the active voice (“I observed that...” or “We observed that...” instead of “It was observed that...”). Remember to check spelling. If your native language is not English, please get a native English-speaking colleague to proofread your paper.

    3.  SOME COMMON MISTAKES

    The word “data” is plural, not singular. The subscript for the permeability of vacuum µ0 is zero, not a lowercase letter “o.” The term for residual magnetization is “remanence”; the adjective is “remanent”; do not write “remnance” or “remnant.” Use the word “micrometer” instead of “micron.” A graph within a graph is an “inset,” not an “insert.” The word “alternatively” is preferred to the word “alternately” (unless you really mean something that alternates). Use the word “whereas” instead of “while” (unless you are referring to simultaneous events). Do not use the word “essentially” to mean “approximately” or “effectively.” Do not use the word “issue” as a euphemism for “problem.” When compositions are not specified, separate chemical symbols by en-dashes; for example, “NiMn” indicates the intermetallic compound Ni0.5Mn0.5 whereas “Ni–Mn” indicates an alloy of some composition NixMn1-x.

    Be aware of the different meanings of the homophones “affect” (usually a verb) and “effect” (usually a noun), “complement” and “compliment,” “discreet” and “discrete,” “principal” (e.g., “principal investigator”) and “principle” (e.g., “principle of measurement”). Do not confuse “imply” and “infer.”

    Prefixes such as “non,” “sub,” “micro,” “multi,” and “"ultra” are not independent words; they should be joined to the words they modify, usually without a hyphen. There is no period after the “et” in the Latin abbreviation “et al.” (it is also italicized). The abbreviation “i.e.,” means “that is,” and the abbreviation “e.g.,” means “for example” (these abbreviations are not italicized).

    An excellent style manual and source of information for science writers is [9].

    4. EDITORIAL POLICY

    The submitting author is responsible for obtaining agreement of all coauthors and any consent required from sponsors before submitting a paper. It is the obligation of the authors to cite relevant prior work.

    5. CONCLUSION

    A conclusion section is not required. Although a conclusion may review the main points of the paper, do not replicate the abstract as the conclusion. A conclusion might elaborate on the importance of the work or suggest applications and extensions.

    APPENDIX

    Appendixes, if needed, appear before the acknowledgment.

    ACKNOWLEDGEMENT

    The preferred spelling of the word “acknowledgment” in American English is without an “e” after the “g.” Use the singular heading even if you have many acknowledgments. Avoid expressions such as “One of us (S.B.A.) would like to thank... .” Instead, write “F. A. Author thanks... .” Sponsor and financial support acknowledgments are placed in the unnumbered footnote on the first page.

    References

    (Periodical style)

    1. Lin, M. Wu, J. A. Bloom, I. J. Cox, and M. Miller. Rotation, scale, and translation resilient public watermarking for imagesIEEE Trans. Image Process., vol. 10, no. 5, pp. 767-782, May 2001.

    (Book style)

    (Book style with paper title and editor)

    1. The Spread Spectrum Concept, in Multiple Access, N. Abramson, Ed. Piscataway, NJ: IEEE Press, 1993, ch. 3, pp. 121-123.

    (Published Conference Proceedings style)

    1. .

     (Thesis or Dissertation style)