The Effect Of Number Of Excitation (Nex) Variation And Blade Technique On T2 Image Quality TSE Sagital Knee MRI

Fella Ustia Nirmala

Abstract views = 332 times | downloads = 281 times




The research has been conducted entitled Influence of Variation Number of Excitation (NEX) and BLADE Technique on Image Quality T2 TSE Sagital Knee MRI. This research was conducted at Haji General Hospital Surabaya by using MRI 1.5 Tesla modalities. The usage of BLADE technique combined with the NEX 1 and NEX 2 variations performed on sagittal tissue of the knee and using a Turbo Spin Echo (TSE) sequence with T2 weighting. Data analysis was done quantitatively by using Region of Interest (ROI) method on MRI computer then analyzed Sinyal to Noise Ratio (SNR) and Contrast to Noise Ratio (CNR). From the research, good image quality result obtained by using BLADE technique on NEX 2 variation with SNR of tissues was 130,71 for Fluid, 5,54 for Meniscus, 12,88 for Anterior Cruciate Ligament (ACL) and 5,95 for Posterior Cruciate Ligament (PCL), whereas the CNR value of tissues was 125.16 for fluid-meniscus, 117.82 for ACL-fluid and 124.76 for fluid-PCL.


Keywords : NEX , TSE, T2 weighting, MRI Knee.


natural science, biomedical engineering, immunology, forensic science, fishery and marine biotechnology, physic

Full Text:




Alibek S, Adamietz B, Cavallaro A, et al. Contrast enhanced T1-weighted fluid- attenuated inversion-recovery BLADE magnetic reso-nance imaging of the brain: an alternative to spin-echo technique for detection of brain lesions in the unsedated pediatric patient? Acad Radiol 2008;15:986–95.

Bushberg J.T., Seibert J.A., Edwin M. Leidholdt, J.R., Boone J.M., 2002, The Essential Physic of Medical Imaging, Second Edition, Lippincott Williams & Wilkins, Philadelphia USA.

Bjørnerud, Atle. 2008. The Physics of Magnetic Resonance Imaging. Department of Physics University of Oslo.

Currie, Stuart, et al. 2015. Understanding MRI: basic MR physics for physicians.Postgrad Med J.

D. W. McRobbie, E. A. Moore, M. J. Graves and M. R. Graves, MRI From Picture to Proton, Second Edition. Cambridge, New York.

Fatimah dkk. 2015. Optimisasi Field Of View (FOV) Terhadap Kualitas Citra Pada T2WI FSE Mri Lumbal Sagital. Semarang: Berkala Fisika JImeD, Vol. 1, N0. 1, Undip

Hashemi, H. Ray and Bradley, G. William, 1997, MRI : The Basic, Williams & Wilkins, USA

H.Schild, Hans. 1990. MRI Made Easy.Berlin : CopyrightbyScheringAG. Ii, B. A. B., & Teori, L. (1977). Universitas Sumatera Utara, 4–24.

J.Blink,Evert. 2004. Basic MRI : Physics. Netherlands

Lavdas E, Mavroidis P, Hatzigeorgiou V, Roka V, Arikidis N,Oikonomou G, et al.Elimination of motion and pulsation artifacts using BLADE sequences in knee MR imaging. Magn Reson Imaging 2012 In press.

NessAiver, 1996, All you really need to know About MRI Physics, University of Maryland Medical Center, USA

Pipe, J. G. (1999). Motion Correction With PROPELLER MRI : Application to Head Motion and Free-Breathing Cardiac Imaging, 969, 963–969.

Rochmayanti, D., Widodo, T. S., & Soesanti, I. (2013). Analisis Perubahan Parameter Number of Sinyals Averaged ( NSA ) Terhadap Peningkatan SNR dan Waktu Pencitraan pada MRI, 2(4).

Siemens. 2010. Physical Principles, CS Training Center MR Basics All rightsreserved. Copyright © Siemens AG

Weishaupt.Dominik, D.Kochli.Victor, Marincek.Borut. 2006. How Does MRI Work? An Introduction the Physic and Function of Magneting Resonance Imaging. Heildelberg: Business Media.

Woodward, Peggy ang William, W. Arrison, 1997, MRI Optimization, a hand on approach, McGraw-Hill


  • There are currently no refbacks.

View My Stats



Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.