18Feb 2017

ROLE OF DIFFERENT PULSE SEQUENCES FOR BETTER CONTRAST USING MAGNETIC RESONANCE IMAGING.

  • Department of Physics, The Islamia University of Bahawalpur. Pakistan.
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This research study aimed to compare the image quality and contrast using different pulse sequences and to evaluate practical impact and efficacy of altering imaging parameters on image quality using magnetic resonance imaging. A tissue equivalent dosimeter gel system by using Xylenol orange dye with Fricke-Benzoic solution was developed and the gel system was irradiated using 6MV photons. Conventional spin echo (CSE), Fast spin echo (FSE), gradient recalled echo (GRE) and fluid attenuated inversion recovery (FLAIR) pulse sequences were used to analyze the effect of TR (repetition-time) and TE (echo-time) on contrast to noise ratio (CNR). The calculated percentage increase of contrast to noise ratio (CNR) for TR using pulse sequences CSE, FSE, GRE and FLAIR was 8%, 10%, 6% and 4% and the percentage decrease for TE is 3%, 4%, 5% and 11% respectively. The qualitative analysis include the effect of TR and TE on contrast to noise ratio according to which the increasing repetition time gives good contrast to noise ratio especially for conventional and fast spin echo sequence. It is better to keep echo time lower but this is an imperceptible parameter for contrast to noise ratio for T1-weighted images.

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[Aalia Nazir, Muhammad Waqas Akhtar and Zahida Batool. (2017); ROLE OF DIFFERENT PULSE SEQUENCES FOR BETTER CONTRAST USING MAGNETIC RESONANCE IMAGING. Int. J. of Adv. Res. 5 (Feb). 226-232] (ISSN 2320-5407). www.journalijar.com

Muhammad Waqas Akhtar
Department of Physics, The Islamia university of Bahawalpur. Pakistan

DOI:

Article DOI: 10.21474/IJAR01/3136      
DOI URL: http://dx.doi.org/10.21474/IJAR01/3136

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