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All Journal Klinik: Jurnal Ilmiah Kedokteran dan Kesehatan Vitamedica: Jurnal Rumpun Kesehatan Umum Inovasi Kesehatan Global
I Wayan Ariec Sugiantara
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Health Professions Medicine & Pharmacology Nursing Public Health

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Analisis Perbedaan Contrast to Noise Ratio (CNR) terhadap Variasi K-Space Filling pada Pemeriksaan MRI Brain Sekuen T2WI Axial dengan Klinis Space Occupying Lession (SOL) Stifany Elena Herlianti Duri; I Putu Eka Juliantara; I Wayan Ariec Sugiantara
Jurnal Ilmiah Kedokteran dan Kesehatan Vol 3 No 1 (2024): Januari : Jurnal Ilmiah Kedokteran dan Kesehatan
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/klinik.v3i1.2279

Abstract

K-space functions to store digital data generated from time to time during scanning, then the data will be converted into image information via Fourier transformation. Radial trajectory at the Siemens vendor is called BLADE, which is a k-space filling method that starts from the central k-space axis and then rotates so that the data block is obtained. Cartesian trajectory is a method for filling k-space which is done linearly from top to bottom or from bottom to top. The aim of this research is to analyze the effect of the k-space filling method using the radial trajectory (BLADE) and Cartesian trajectory methods on the quality of axial MRI Brain T2WI sequence images in Space Occupying Lession (SOL) cases. This study uses a quantitative research method with an experimental study approach. The population and sample of the study were 10 patients with SOL clinical MRI brain examinations, and each sample underwent variations in k-space filling using the radial trajectory (BLADE) and Cartesian trajectory methods on axial T2WI sequences. The data was processed using radiant DICOM and then analyzed using the normality test and the Wilcoxon test on SPSS 25 software. The results of the study show a significance value (p-value) of 0.000 < 0.05, so it can be concluded that Ha is accepted and H0 is rejected, which means there is a difference in the Contrast to Noise Ratio (CNR) in the axial T2WI sequence MRI Brain examination using variations of k -space filling cartesian trajectory and radial trajectory (BLADE) techniques. The radial trajectory (BLADE) technique in the MRI Brain T2WI axial sequence examination is considered capable of producing a more optimal CNR compared to the Cartesian trajectory technique, seen from the mean rank value for the radial trajectory (BLADE) technique it’s 32.88, while for the Cartesian trajectory technique it’s 18. 7.
Prosedur Pemeriksaan MRI Placenta Accreta Di RSUD Dr Saiful Anwar Malang Stefania Layola Pasire; I Putu Eka Juliantara; I Wayan Ariec Sugiantara
VitaMedica : Jurnal Rumpun Kesehatan Umum Vol. 2 No. 2 (2024): April : VitaMedica : Jurnal Rumpun Kesehatan Umum
Publisher : STIKES Columbia Asia Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62027/vitamedica.v2i2.77

Abstract

Placenta accreta is an abnormal implantation of the placenta into the uterine wall, on the surface of the myometrium. Placenta accreta is quite dangerous for pregnancy and has increased over the past few years along with the incidence of cesarean section (SC), with a prevalence of 7-10% of maternal deaths in the world. To diagnose the incidence of placenta accreta, Magnetic Resonance Imaging (MRI) is one of the modalities that is often utilized and has now become a routine diagnostic support modality in many large hospitals, because it does not use ionizing radiation and has a higher contrast resolution. The type of research used is qualitative with a case study approach. The sample of this study consists of 2 patients who underwent MRI Abdomen-Pelvic with clinical placenta accreta at RSUD Dr. Saiful Anwar Malang, which was conducted during September 2023. The results of this study indicate that the placenta accreta MRI examination procedure at RSUD Dr. Saiful Anwar Malang has no special preparation. The use of 2 protocols in the examination, namely abdomen and pelvic, has the advantage of producing a wider cross section, also including several additional sequences in the form of DWI and MRA, thus helping to observe the area of adhesions and surrounding organs, with the boundaries of the organs produced much more clearly.
The Role of MRI in Establishing The Optic Nerve in The Orbita Literature Review Study Novinda Syamantha Djawa; I Made Lana Prasetya; I Wayan Ariec Sugiantara
Inovasi Kesehatan Global Vol. 1 No. 2 (2024): Mei : Inovasi Kesehatan Global
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/ikg.v1i2.249

Abstract

Diagnosing optic nerve disorders in the orbit is a clinical challenge that requires sophisticated imaging technology. MRI has become one of the main diagnostic tools in identifying various optic nerve pathologies, such as Optic Neuritis, Multiple Sclerosis, and tumors. However, it is important to understand in more depth how MRI can play an effective role in this diagnosis process. This study aims to explore the role of MRI in diagnosing optic nerve disorders in the orbit, specifically focusing on Optic Neuritis. This research uses a Literature Review Study approach by collecting data from various sources, including Pubmed, Google Scholar, and online repositories. Relevant data was selected based on established inclusion criteria, and then analyzed to understand the contribution of MRI in the process of diagnosing optic nerve disorders. The results of the study show that the use of ADC values has proven effective in diagnosing Multiple Sclerosis of the optic nerve, while the diagnosis of Optic Neuritis can be made without the use of contrast media with high sensitivity. Imaging techniques with diffusion weighting, fat saturation, and phase oversampling have also been proven to improve the quality of Orbital MRI images by reducing artifacts. It is also recommended to use slice thicknesses of 1 mm, 2 mm, and 3 mm to optimally display small anatomy and pathology. The rFOV-EPI imaging technique is recommended because it can provide high spatial resolution. Thus, through the application of the various MRI imaging techniques and parameters mentioned above, a more accurate and detailed diagnosis can be made regarding the pathological condition of the optic nerve in the orbit. This research makes an important contribution to our understanding of the role of MRI in the diagnosis and management of optic nerve disorders, as well as providing practical guidance for medical practitioners in the clinical use of this technology.
Co-Authors I Made Lana Prasetya I Putu Eka Juliantara Novinda Syamantha Djawa Stefania Layola Pasire Stifany Elena Herlianti Duri