The Direction of Flow and Phase-encoding Schemes Effects on Signal Intensity in T۱-weighted Inversion Recovery TurboFLASH Images

سال انتشار: 1402
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 49

فایل این مقاله در 10 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:

شناسه ملی سند علمی:

JR_JBPE-13-1_006

تاریخ نمایه سازی: 30 دی 1402

چکیده مقاله:

Background: It is needed to minimize the effect of flow direction on the desired area, such as arterial input function (AIF) in magnetic resonance imaging (MRI). Objective: The current study aimed to investigate the effect of flow direction on different velocities (۰–۸۰.۳۹ cm/s) for the strength of the signal intensity (SI) at the linear phase-encoding (LPE) and the center out phase-encoding (COPE) schemes and to recommend the best flow direction in a selected slice and scheme for absolute perfusion measurement by inversion recovery T۱-weighted turbo fast low-angle shot (TurboFLASH) MR images.Material and Methods: In this experimental study, the flow rates were measured using a flow phantom, and the signal intensity (SI) was measured at the two opposite flow directions in the Z-axis perpendicular to the coronal image at a concentration of ۰.۸ mmol/L of gadolinium-diethylenetriaminepantaacetic acid (Gd-DTPA) by using the LPE and COPE schemes. Results: The increase in velocity along with the growth in SI and inflow affected the use of LPE and COPE acquisitions in both directions. The velocity of the arterial input function is needed to calculate the inflow correction factor by using two schemes in two opposite flow directions to investigate perfusion.  Conclusion: The COPE scheme was better than the LPE scheme in measuring perfusion since the velocity and direction of blood flow affect SI less.

نویسندگان

- -

Department of Biomedical Engineering, Faculty of Health and Biomedical Engineering, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran

مراجع و منابع این مقاله:

لیست زیر مراجع و منابع استفاده شده در این مقاله را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود مقاله لینک شده اند :
  • Westbrook C, Kaut C. MRI in Practice. ۲nd ed. Osney ...
  • Nazarpoor M. Inflow effect of signal intensity for the Center ...
  • Pettersson H, Allison D. The encyclopedia of medical imaging Volume ...
  • Moody AR, Martel A, Kenton A, Allder S, Horsfield MA, ...
  • Nazarpoor M. Evaluation of flow measurement from the first pass ...
  • Nazarpoor M, Morgan PS. Inflow effect correction on perfusion measurement ...
  • Nazarpoor M. Effect of concentration of contrast agent on the ...
  • Nazarpoor M. Effect of phase-encoding scheme on the relationship between ...
  • Nazarpoor M. Effects of inversion and saturation times on relationships ...
  • Nazarpoor M, Gharehaghaji N, Saharkhiz H. Effect of Inversion Time ...
  • Nazarpoor M. Evaluation of Maximum and Minimum Signal Intensity and ...
  • Nazarpoor M, Poureisa M, Daghighi MH. Effect of echo time ...
  • Nazarpoor M. The effect of repetition time on the maximum ...
  • Gharehaghaji N, Nazarpoor M, Saharkhiz H. Effect of Flip Angle ...
  • Nazarpoor M, Poureisa M, Daghighi MH. Comparison of maximum signal ...
  • Gharehaghaji N, Nazarpoor M, Saharkhiz H. Effect of iron oxide ...
  • Nazarpoor M, Mayabi Z, Shfaie A, Pesianian E, Aghaverdizadeh D. ...
  • Akbudak E, Norberg RE, Conturo TE. Contrast-agent phase effects: an ...
  • Soustiel JF, Levy E, Zaaroor M, Bibi R, Lukaschuk S, ...
  • Savin E, Siegelova J, Fisher B, Bonnin P. Intra- and ...
  • Smith JJ, Kampine JP. Circulatory Physiology - The essentials. Third ...
  • Goyen M, Lauenstein TC, Herborn CU, Debatin JF, Bosk S, ...
  • Non-uniformity of Clinical Head, Head and Neck, and Body Coils in Magnetic Resonance Imaging (MRI) [مقاله ژورنالی]
  • Nazarpoor M. Organ blood flow measurement with T۱ and T۲*-weighted ...
  • Dean BL, Lee C, Kirsch JE, Runge VM, Dempsey RM, ...
  • Hackländer T, Reichenbach JR, Hofer M, Mödder U. Measurement of ...
  • Ivancevic MK, Zimine I, Montet X, Hyacinthe JN, Lazeyras F, ...
  • Nazarpoor M. The effect of inversion times on the minimum ...
  • Peeters F, Annet L, Hermoye L, Van Beers BE. Inflow ...
  • Pang Y, Bernardo M, Turkbey B, Ravizzini G, Thom-asson D, ...
  • Vallée JP, Lazeyras F, Khan HG, Terrier F. Absolute renal ...
  • Montet X, Ivancevic MK, Belenger J, Jorge-Costa M, Pochon S, ...
  • Barbier EL, Lamalle L, Décorps M. Methodology of brain perfusion ...
  • Rempp KA, Brix G, Wenz F, Becker CR, Gückel F, ...
  • Ito H, Takahashi K, Hatazawa J, Kim SG, Kanno I. ...
  • نمایش کامل مراجع