Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality
Introduction: The present study aimed to three frequently used pulse sequences of magnetic resonance imaging (MRI) to assess the image quality of theses pulse sequences at short acquisition time. Material and Methods: For the purpose of study two tissue equivalent gels were prepared. One gel was mad...
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| Format: | Article |
| Language: | English |
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Mashhad University of Medical Sciences
2020-11-01
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| Series: | Iranian Journal of Medical Physics |
| Subjects: | |
| Online Access: | http://ijmp.mums.ac.ir/article_13833_3072d9219791670323c0b255bcd3edc6.pdf |
| _version_ | 1829111499585486848 |
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| author | Naima Amin Muhammad Yousaf Muhammad Javid Atika Farooq |
| author_facet | Naima Amin Muhammad Yousaf Muhammad Javid Atika Farooq |
| author_sort | Naima Amin |
| collection | DOAJ |
| description | Introduction: The present study aimed to three frequently used pulse sequences of magnetic resonance imaging (MRI) to assess the image quality of theses pulse sequences at short acquisition time.
Material and Methods: For the purpose of study two tissue equivalent gels were prepared. One gel was made from Polysaccharide and Agarose, whereas second gel was obtained from Ferrous Benzoic Xylenol Orange (FBX) which is tissue equivalent material. 6MV photons were used to irradiate FBX gel from linear accelerator with 25 Gray dose. Imaging parameters are performed in repetition time (TR) for experimental variations. The quantitative analysis included contrast-to-noise ratio (CNR) and signal to noise ratio (SNR).
Results: As evidenced by obtained results at 1.5 Tesla, Fast Spin Echo (FSE) and Fast Fluid Attenuated Inversion Recovery (FLAIR) were most comparable in SNR although, acquisition time of FSE is 62%, 9 %, and 15% less than FLAIR at different values of 4000ms, 4200ms and 4600ms of TR. CNR of Conventional Spin Echo (CSE) was 143% and 93% better than FSE and FLAIR respectively. The time difference between CSE and FSE was 6 min and 34 sec while this difference was 6 min and 43 sec between CSE and FLAIR.
Conclusion: FSE and FLAIR produced optimal image quality for many tissues. Their reduced acquisition time could make them perfect option for patients who cannot tolerate longer imaging time. Nonetheless long acquisition time cannot undervalue importance of CSE since it has yielded significantly higher contrast and SNR in T2-weighted images among other pulse sequences of MRI. |
| first_indexed | 2024-12-12T12:20:12Z |
| format | Article |
| id | doaj.art-1c0c6344bce645b3b28bf7b235d79db8 |
| institution | Directory Open Access Journal |
| issn | 2345-3672 2345-3672 |
| language | English |
| last_indexed | 2024-12-12T12:20:12Z |
| publishDate | 2020-11-01 |
| publisher | Mashhad University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Medical Physics |
| spelling | doaj.art-1c0c6344bce645b3b28bf7b235d79db82022-12-22T00:24:40ZengMashhad University of Medical SciencesIranian Journal of Medical Physics2345-36722345-36722020-11-0117635035810.22038/ijmp.2019.38606.150113833Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image QualityNaima Amin0Muhammad Yousaf1Muhammad Javid2Atika Farooq3Department of physics, COMSATS University Islamabad, Lahore Campus, PakistanMathematich Department, COMSATS University Islambad, Lahore Campus, PakistanDepartment of Basic Sciences,UET,Taxila Pakistan.Department of Physics, COMSATS University Islamabad, Lahore Campus, PakistanIntroduction: The present study aimed to three frequently used pulse sequences of magnetic resonance imaging (MRI) to assess the image quality of theses pulse sequences at short acquisition time. Material and Methods: For the purpose of study two tissue equivalent gels were prepared. One gel was made from Polysaccharide and Agarose, whereas second gel was obtained from Ferrous Benzoic Xylenol Orange (FBX) which is tissue equivalent material. 6MV photons were used to irradiate FBX gel from linear accelerator with 25 Gray dose. Imaging parameters are performed in repetition time (TR) for experimental variations. The quantitative analysis included contrast-to-noise ratio (CNR) and signal to noise ratio (SNR). Results: As evidenced by obtained results at 1.5 Tesla, Fast Spin Echo (FSE) and Fast Fluid Attenuated Inversion Recovery (FLAIR) were most comparable in SNR although, acquisition time of FSE is 62%, 9 %, and 15% less than FLAIR at different values of 4000ms, 4200ms and 4600ms of TR. CNR of Conventional Spin Echo (CSE) was 143% and 93% better than FSE and FLAIR respectively. The time difference between CSE and FSE was 6 min and 34 sec while this difference was 6 min and 43 sec between CSE and FLAIR. Conclusion: FSE and FLAIR produced optimal image quality for many tissues. Their reduced acquisition time could make them perfect option for patients who cannot tolerate longer imaging time. Nonetheless long acquisition time cannot undervalue importance of CSE since it has yielded significantly higher contrast and SNR in T2-weighted images among other pulse sequences of MRI.http://ijmp.mums.ac.ir/article_13833_3072d9219791670323c0b255bcd3edc6.pdfdiagnosisimagingmagnetic resonance imagingphantomssignal to noise ratio |
| spellingShingle | Naima Amin Muhammad Yousaf Muhammad Javid Atika Farooq Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality Iranian Journal of Medical Physics diagnosis imaging magnetic resonance imaging phantoms signal to noise ratio |
| title | Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality |
| title_full | Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality |
| title_fullStr | Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality |
| title_full_unstemmed | Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality |
| title_short | Comparison of Pulse Sequences of Magnetic Resonance Imaging for Optimization of Timing and Image Quality |
| title_sort | comparison of pulse sequences of magnetic resonance imaging for optimization of timing and image quality |
| topic | diagnosis imaging magnetic resonance imaging phantoms signal to noise ratio |
| url | http://ijmp.mums.ac.ir/article_13833_3072d9219791670323c0b255bcd3edc6.pdf |
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