scholarly journals Anode heel effect application with step wedge against effect of signal to noise ratio in computed radiography

2020 ◽  
Vol 4 (3) ◽  
pp. 75-82
Author(s):  
Ni Nyoman Ratini ◽  
I Made Yuliara ◽  
Windaryoto Windaryoto
Keyword(s):  
Computed Radiography ◽  
Signal To Noise Ratio ◽  
Pearson Correlation ◽  
P Value ◽  
Signal To Noise ◽  
Correlation Test ◽  
Pearson Correlation Test ◽  
R Value ◽  
Noise Ratio ◽  
Heel Effect

It was researched on the application of Anoda Heel Effect (AHE) with a step wedge on the effect of Signal To Noise Ratio (SNR) on Computed Radiography (CR) has been carried out. This research was conducted on a 21 step wedge with two treatments, namely the application of AHE and without the application of AHE. This measurement is repeated three times on radiographs to obtain a total image of six images (without the application of AHE as many as three images and with the application of AHE as many as three images). The results of taking radiographs using AHE and without AHE were measured using the RadiAnt Dicom Viewer program. The SNR value on the step wedge image without the AHE application has an average of 26.89. The SNR value on the step wedge image using AHE is 60.54. The results of the correlation test (Pearson correlation test) on the SNR showed that there was a significant and very strong effect of the application of AHE on the step wedge on the SNR in CR (p-value <0.001 and the R-value ranging from 0.600 to 0.799).

scholarly journals Analisis Perbandingan Nilai Signal to Noise Ratio (SNR) pada Pemeriksaan MRI Ankle Joint dengan Menggunakan Quad Knee Coil dan Flex/Multipurpose Coil

2017 ◽  
Vol 3 (1) ◽  
pp. 220-224
Author(s):  
Ahda Nur Arifah ◽  
Yeti Kartikasari ◽  
Emi Murniati
Keyword(s):  
Achilles Tendon ◽  
Ankle Joint ◽  
Subtalar Joint ◽  
Signal To Noise Ratio ◽  
P Value ◽  
Signal To Noise ◽  
Talocrural Joint ◽  
Knee Coil ◽  
Noise Ratio ◽  
Joint Examination

Background : Research on the difference comparison the value of Signal To Noise Ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex/Multipurpose Coil at the hospital's radiology installation Telogorejo Semarang. Quad knee coil is a volume coil, is a coil that can act as a transmitter and receiver at the same RF signal (transreceiver). Flex / Multipurpose Coil is a surface coil which has a high SNR for a superficial examination (a small organ). The purpose of this research is to know comparison the value of signal to noise ratio (SNR) and higher the value of signal to noise ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex / Multipurpose Coil.Method : This type of research is quantitative experimental approach. The research data which 6 samples. Rate includes images subjectively talocalcaneal interosseous ligament, talocrural joint, subtalar joint, the calcaneus, tibia, talus, and the Achilles tendon. Then the results of the data in Paired T-Test tested.Results : Test results that there are differences in comparison the value of signal to noise ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex / Multipurpose Coil which has a p-value / sig for all of 0.002, and each criterion that have talocalcaneal interoseous ligament p value 0.026, talocrural joint p value 0.017, subtalar joint p value 0.001, calcaneus p value 0.002, tibia p value 0.003, talus p value 0.006, and achilles tendon p value 0.012. This is in accordance with the calculated average value SNR on the use of Quad Knee Coil is higher at 110.67 because the coil acts as transreceiver and has two preamplifier so as to improve the SNRConclusion : There is a differences in comparison the value of Signal To Noise Ratio (SNR) at MRI Ankle Joint examination using Quad Knee Coil and Flex / Multipurpose Coil.

scholarly journals HUBUNGAN KADAR ZINK DALAM ASI DENGAN BERAT BADAN DAN PANJANG BADAN BAYI USIA 4-6 BULAN DI KOTA PADANG SUMATERA BARAT

2019 ◽  
Vol 8 (1) ◽  
pp. 22
Author(s):  
Ratnadewi Ratnadewi
Keyword(s):  
Public Health ◽  
Zinc Deficiency ◽  
Pearson Correlation ◽  
Public Health Problem ◽  
Simple Random Sampling ◽  
Zinc Level ◽  
P Value ◽  
Cross Sectional ◽  
Correlation Test ◽  
Pearson Correlation Test

Zinc deficiency is public health problem. Almost two million people in developing country suffered zinc deficiency. Zinc deficiency in Indonesia, 25% in breastfeeding mothers and 17% in babies. The purpose of this study was to determine the correlation of zinc level in breastmilk with 4-6 months old baby weight and length in Padang City West Sumatera. This study was done in working area of Lubuk Buaya, Padang Pasir, and Nanggalo Public Health Center. This study was done from January 2016 until January 2017. The design of this study was cross sectional, number of sample were 108 people. Samples were selected by simple random sampling. Zinc level in breastmilk was checked by AAS (Atomic Absorption Spectrophotometer). Data were analyzed by using univariate and bivariate with pearson correlation test. The correlation test, correlation was positive and patterned between log zinc level in breastmilk with 4-6 months old baby weight (r=0,272), while the length (r=0,216), correlation was positive and weak with p value <0,05. That there were significant correlation between log zinc level in breastmilk and 4-6 months old baby weight and length.

scholarly journals HUBUNGAN PEMANFAATAN DANA BANTUAN OPERASIONAL KESEHATAN TERHADAP PENINGKATAN CAKUPAN PEMERIKSAAN KEHAMILAN DAN PERSALINAN DI FASILITAS KESEHATAN

2020 ◽  
Vol 11 (1) ◽  
pp. 79-88
Author(s):  
Suparmi Suparmi ◽  
Iram Barida Maisya ◽  
Anissa Rizkianti ◽  
Ika Saptarini ◽  
Ario Baskoro
Keyword(s):  
Public Health ◽  
Maternal Health ◽  
Linear Regression ◽  
Antenatal Care ◽  
Health Workers ◽  
Pearson Correlation ◽  
Health Facilities ◽  
P Value ◽  
Correlation Test ◽  
Pearson Correlation Test

Abstract Background: Health Operational Assistance (BOK) is a central government fund allocation to support the operation of Health Center (Puskesmas) to increase promotive and preventive activities related to public health, including maternal health. Objective: This study aims to determine the relationship of BOK utilization on maternal health service coverage. Method: The study used secondary data from the Ministry of Health e-Renggar Planning and Budget Bureau, Statistics Indonesia, the Ministry of Finance and the 2018 Public Health Development Index (IPKM) report. The unit of analysis is districts. Bivariate analysis was performed by Pearson correlation test, while multivariate analysis was performed by linear regression using SPSS software version 15. Results: The result of Pearson correlation test showed that BOK utilization was positively correlated with an increase in the antenatal care coverage (r = 0.294; p-value = 0,000) and coverage of deliveries by health workers in health facilities (r = 0.227; p-value = 0,000). The results of linear regression analysis showed BOK utilization, the percentage of poverty and the adequacy of posyandu have a significant relationship with antenatal care coverage and coverage of delivery assisted by health workers in health facilities. Conclusion: The health operational fund utilization increase antenatal care coverage and coverage of delivery assisted by health workers in health facilities. Therefore, it is necessary to optimize the use of BOK for the achievement of priority public health programs, especially for innovative activities that have a high degree of leverage towards the achievement of SDGs so that the target in reducing Maternal Mortality Rate (MMR) can be achieved. Keywords: health operational fund, maternal health, coverage, services   Abstrak Latar Belakang: Bantuan Operasional Kesehatan (BOK) merupakan salah satu sumber pembiayaan dari pemerintah pusat untuk menunjang operasional Puskesmas dalam meningkatkan upaya promotif dan preventif terkait kesehatan masyarakat, salah satunya kesehatan ibu. Tujuan: Studi ini bertujuan untuk mengetahui hubungan pemanfaatan BOK terhadap cakupan pelayanan kesehatan ibu. Metode: Studi ini menggunakan data sekunder dari laporan e-renggar Biro Perencanaan dan Anggaran Kementerian Kesehatan, Badan Pusat Statistik, Kementerian Keuangan dan laporan Indeks Pembangunan Kesehatan Masyarakat (IPKM) tahun 2018. Unit analisis adalah Kabupaten/Kota. Analisis bivariate dilakukan dengan uji korelasi pearson, sedangkan analisis multivariate dilakukan dengan regresi linier menggunakan software SPSS versi 15. Hasil: Hasil analisis uji korelasi pearson menunjukkan bahwa persentase realisasi BOK berkorelasi positif dengan peningkatan cakupan pemeriksaan kehamilan K4 (r=0,294; p-value=0,000) dan cakupan persalinan oleh tenaga kesehatan di fasilitas kesehatan (r=0,227; p-value=0,000). Hasil analisis regresi linier menunjukkan pemanfaatan BOK, persentase penduduk miskin dan kecukupan posyandu mempunyai hubungan bermakna dengan cakupan K4 dan cakupan persalinan ditolong oleh tenaga kesehatan di fasilitas kesehatan. Kesimpulan: Pemanfaatan BOK berhubungan dengan peningkatan cakupan K4 dan cakupan persalinan ditolong oleh tenaga kesehatan di fasilitas kesehatan. Optimalisasi pemanfaatan BOK untuk pencapaian program prioritas kesehatan masyarakat diperlukan, terutama untuk kegiatan-kegiatan inovatif yang memiliki daya ungkit tinggi terhadap pencapaian SDGs sehingga target dalam menurunkan Angka Kematian Ibu (AKI) dapat tercapai. Kata kunci: bantuan operasional kesehatan, kesehatan ibu, cakupan, pelayanan

scholarly journals Analisis Variasi Time Repetition (TR) terhadap Signal to Noise Ratio dan Contrast to Noise Ratio pada Pemeriksaan MRI Cervical T2 Weighted Fast Spin Echo (FSE) Potongan Sagital

2016 ◽  
Vol 2 (1) ◽  
pp. 119-123
Author(s):  
Rini Indrati ◽  
Heriansyah Heriansyah ◽  
Wakhrudin Wakhrudin
Keyword(s):  
Signal To Noise Ratio ◽  
Spin Echo ◽  
Fast Spin Echo ◽  
Mean Deviation ◽  
P Value ◽  
Signal To Noise ◽  
Mri Examination ◽  
Spin Echo Sequence ◽  
Noise Ratio ◽  
Fast Spin

Background: Time Repetition (TR) is one parameter that can affect the value of Signal to Noise Ratio (SNR) and Contrast to Noise Ratio (CNR). The purpose of this research is to know the effect of variation of TR value on SNR and CNR on cervical MRI examination with Sagital T2 Weighted Fast Spin Echo sequence and to know the most optimal TR value from the variation of TR value to SNR and CNR on cervical MRI examination with Sagital T2 Weighted Fast Spin Echo.Methods: The type of this study was experimental study. The study was conducted using MRI 1.5 Tesla at Kasih Ibu Denpasar Hospital. Data were 40 MRI cervical images of sagital Fast Spin Echo from 10 volunteers with four variations of TR (2500 ms, 3000 ms, 3500 ms, and 4000 ms). The SNR and CNR values are measured by identifying the Region of Interest (ROI) in the corpus, discus, cerebro spinal fluid (CSF), and medula spinalis regions to obtain the average signals and compared with the mean deviation of the background. Data was analyzed by regression test to know the influence and by Anova test.Results: The result of the research showed that there was the influence of TR value to SNR and CNR of MRI Cervical Sagital T2 FSE. There was a strong correlation between the variation of TR values with SNR and CNR Cervical with p-value 0.05, the optimal TR value obtained in Cervical Sagital T2 FSE anatomical image on MRI 1,5 Tesla modality was 3500 ms.Conclusion: Time Repetition affected the signal to noise ratio and contrast to noise ratio. TR 3500 ms produced the most optimal cervical MRI image quality.

scholarly journals Hubungan Pengetahuan Kesehatan Gigi dan Mulut Dengan Status Kebersihan Gigi dan Mulut pada Penyandang Tunanetra Dewasa

e-GIGI ◽  
2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Noviana F. Tandra ◽  
Christy N. Mintjelungan ◽  
Kustina Zuliari
Keyword(s):  
Oral Hygiene ◽  
Health Knowledge ◽  
Dental Health ◽  
Pearson Correlation ◽  
P Value ◽  
Design Data ◽  
Cross Sectional ◽  
Correlation Test ◽  
Pearson Correlation Test ◽  
Level Of Knowledge

Abstract: Limitations in vision of people with visual impairment affect their ability to gain knowledge, including oral and dental knowledge. Therefore, they are not able to keep their oral and dental health properly. This study was aimed to determine the correlation between oral and dental health knowledge and oral hygiene status among adult people with blindness. This was a descriptive analytical study with a cross sectional design. Data were obtained by using questionnaire and examination of oral hygiene status using the oral hygiene index-simplified (OHI-S). Data were analyzed by using the Pearson correlation test. Subjects were 35 adult people with blindness aged 18-45 years. The results showed that 24 subjects (68.57%) had poor level of knowledge and 11 subjects (31.43%) had good level of knowledge. There were 10 subjects (28.57%) with poor oral hygiene status, 24 subjects (68,57 %) with moderate oral hygiene status, and 1 subjects (2.86%) with good oral hygiene status. The Pearson correlation test showed a P value of 0.009. Conclusion: There was a significant correlation between oral and dental health knowledge and oral hygiene status among adult people with blindness.Keywords: oral and dental health knowledge, oral hygiene status, blindness Abstrak: Keterbatasan dalam penglihatan yang dimiliki oleh penyandang tunanetra meme-ngaruhi kemampuan mereka dalam memperoleh pengetahuan, tepenyandangrmasuk pengetahuan kesehatan gigi dan mulut. Hal ini mengakibatkan penyandang tunanetra kurang optimal menjaga kebersihan gigi dan mulut. Penelitian ini bertujuan untuk mengetahui hubungan pengetahuan kesehatan gigi dan mulut dengan status kebersihan gigi dan mulut pada penyandang tunanetra usia dewasa. Jenis penelitian ialah deskriptif analitik dengan dessain potong lintang. Data penelitian diperoleh dengan menggunakan kuisioner serta pemeriksaan status kebersihan gigi dan mulut menggunakan oral hygiene index-simplified (OHI-S). Subyek penelitian berjumlah 35 penyandang tunanetra berusia 18-45 tahun diperoleh dengan menggunakan teknik total sampling. Data dianalisis dengan menggunakan uji korelasi Pearson. Hasil penelitian mendapatkan dari 35 subyek, terdapat 24 penyandang (68,57%) dengan tingkat pengetahuan rendah, 11 penyandang (31,43%) dengan tingkat pengetahuan tinggi. Terdapat 10 penyandang (28,57%) dengan status kebersihan gigi dan mulut buruk, 24 penyandang (68,57%) dengan status kebersihan sedang, dan 1 penyandang (2,86%) dengan status kebersihan gigi dan mulut baik. Uji korelasi Pearson mendapatkan nilai P = 0,009. Simpulan: Terdapat hubungan bermakna antara pengetahuan kesehatan gigi dan mulut dengan status kebersihan gigi dan mulut pada penyandang tunanetra dewasa.Kata kunci: pengetahuan kesehatan gigi dan mulut, status kebersihan gigi dan mulut, tunanetra

scholarly journals Analisis Jeda Waktu Pembacaan Imaging Plate Terhadap Signal to Noise Ratio pada Citra Computed Radiography

2015 ◽  
Vol 1 (2) ◽  
pp. 55-58
Author(s):  
Dwi Rochmayanti ◽  
Defia Ayusari ◽  
Andrey Nino Kurniawan
Keyword(s):  
Time Delay ◽  
Image Quality ◽  
Reading Time ◽  
Computed Radiography ◽  
Signal To Noise Ratio ◽  
Time Interval ◽  
Imaging Plate ◽  
Signal To Noise ◽  
Average Decrease ◽  
Noise Ratio

Backgroud: Imaging plate (IP) is a storage media on computed radiography (CR). IP that has been exposed and does not process immediately will decrease the latent image exponentially over time and degrade the image quality. Normally, 25% of signal will be lost if IP was scanned at 10 minutes till 8 hours after exposure. So It will decrease the image quality. Image quality is determined by several factors. One of them is the signal-to-noise ratio (SNR). This study aims to determine the effect of reading time delay of IP to SNR on CR image.Methods: This research was a quantitative study with an experimental approach. Population of this study was CR digital image with various time delay of IP reading. Samples were 51 digital images of water phantom read by IP reading with time interval was 0 hours, 0.5 hours, 1 hour; 1.5 hour, 2 hours, 2.5 hours, 3 hours, 3.5 hours, 4 hours, 4.5 hours, 5 hours, 5.5 hours, 6 hours, 6.5 hours, 7 hours, 7.5 hours and 8 hours after exposure. Image pixel value and noise was weasured by ImageJ software to determine the value of SNR, then analyzed statistically with the regression test.Results: There was effect of reading time delay to SNR on CR image. Time delay affected 30,5% decreasing of SNR. Generally, time delay of IP reading decrease the SNR. The average decrease was 1.55% of SNR.Conclusion: The decrease of the SNR value was not big enough, only 1.55%. However, it will better when IP read as soon as possible after exposure to reduce the decrease of image quality.

scholarly journals Pengaruh Variasi Tegangan Tabung Sinar-X terhadap Signal to Noise Ratio (SNR) dengan Penerapan Anode Heel Effect menggunakan Stepwedge

2020 ◽  
Vol 22 (1) ◽  
pp. 20
Author(s):  
Puja Satwika Luh Gede ◽  
Ni Nyoman Ratini ◽  
Maghfirotul Iffah
Keyword(s):  
Signal To Noise Ratio ◽  
Test Results ◽  
Signal To Noise ◽  
Tube Voltage ◽  
X Ray ◽  
Voltage Variation ◽  
Regression Test ◽  
Noise Ratio ◽  
Heel Effect ◽  
Simple Regression

It has been conducted research to determine the effect of X-ray tube voltage variation (kV) on Signal to Noise Ratio (SNR) values by applying the Anode Heel Effect using stepwedge with the addition of 1.5 mm thickness each step. The stepwedge used was 1.5-31.5 mm. The X-ray tube voltage variations used were 40, 50, 60, 70, 80, and 90 kV. Analysis of the effect of X-ray tube voltage variation on SNR values is determined using IMB SPSS Statistics 26 with a simple regression test. The test results showed that variations in X-ray tube voltage affect SNR values, where the greater the variation in X-ray tube voltage then the SNR value would get smaller. The optimal SNR value of 72.685 was obtained at a tube tension of 40 kV and a stepwedge thickness of 27.0 mm.

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