Landasan teori. HNP adalah Suatu nyeri yang disebabkan oleh proses patologik dikolumna vertebralis pada diskus intervertebralis diskogenik Harsono, HNP adalah keadaan dimana nukleus pulposus keluar menonjol untuk kemudia menekan ke arah kanalis spinalis melalui anulus fibrosis yang robek. HNP terjadi karena proses degenratif diskus intervetebralis.

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Reference Manager. Quick time of MRI examination is needed to produce an optimal image. The technique of parallel imaging is a technique that can increase the speed of MRI data acquisition by passing through several lines of phase encoding in k-space.

The technique of parallel imaging has a special parameter called acceleration factor. Acceleration factor R-factor will affect scan time. The purpose of this research is to know the difference of diagnostic image characteristic which is resulted in applying acceleration factor 2, 3 and 4 in parallel imaging of GRAPPA method and know the optimal acceleration factor to obtain MRI image of lumbar HNP case.

Methods : This research type is quantitative research with descriptive approach. Soedono Madiun. Result : The results of this study indicate that there are differences in diagnostic image characteristics in the application of acceleration factor 2 and 4, 3 and 4 with VGA test.

Acceleration factor value optimal with VGC test known is acceleration factor 2 and 3. Visual grading characteristics VGC analysis: A non-parametric rank-invariant statistical method for image quality evaluation. British Journal of Radiology, 80 Blaimer, M. Journal of Magnetic Resonance Imaging, 24 2 , — Brown, M. Samelka, R. Inc, Ed. New Jersy. Busong, S. Mosby: : Washington DC. Catherine, W.

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MRI of herniated nucleus pulposus. Correlation with clinical findings, determinants of spontaneous resorption and effects of anti-inflammatory treatments on spontaneous resorption. Runge, R, W. New York: Thieme Medical Publisher. Bandung: Alfabeta. Weishaupt, D. United Kingdom: Blackwell Science Ltd. User Username Password Remember me. Notifications View Subscribe. Collaboration With.

Full Text: PDF. Moeller, T. Notoatmodjo, S. Metodologi Penelitian Kesehatan. Jakarta: Rineka Cipta. Pearce, E. Anatomi dan Fisiologi untuk Paramedis. Jakarta: Gramedia Pustaka Utama. USA: University of Wisconsin. Westbrook, C. Remember me.


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