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All Journal Majalah Forum Teknik UGM LINK Journal Of Vocational Health Studies International Journal Of Public Health
Dwi Rochmayanti
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Engineering Health Professions Nursing Public Health

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Pengaruh Parameter Number Of Excitation (NEX) Terhadap SNR Dwi Rochmayanti; Thomas Sri Widodo; Indah Soesanti
Forum Teknik Vol 33, No 3 (2010)
Publisher : Faculty of Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to observe the influence of Number of Excitation (NEX) to bothparameters the Signal to Noise Ratio (SNR) and the scanning time when performing the MRneck . Some MR scan parameters (TR, TE, FOV, slice thickness, matrix, flip angle andbandwidth) are strictly under controlled. All SNR data, due to the 6 NEX variations (NEX 1 toNEX 6), are required by comparing the ROI’s intensity between the noise background and theareas of corpus and spinal cord on the images. The scan times are also recorded for each of theNEX variations being observed. In conclusion, increasing NEX values will simultaneously risethe SNR and the scanning time.Keywords : NEX, SNR, Image MRI, Scan time
KOMUNIKASI EFEKTIF BERPERAN DALAM MENINGKATKAN KEPUASAN PASIEN DI INSTALASI RADIOLOGI Marichatul Jannah; Darmini Darmini; Dwi Rochmayanti
Jurnal LINK Vol 13, No 2 (2017): NOVEMBER 2017
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (643.726 KB) | DOI: 10.31983/link.v13i2.2924

Abstract

Komunikasi merupakan hal yang penting untuk mempengaruhi kualitas pelayanan sertaditujukan untuk mengubah perilaku pasien dalam rangka mencapai kesehatan optimal. Salah satufaktor yang mempengaruhi kepuasan pasien adalah adanya komunikasi yang terjalin antararadiografer dengan pasien. Tujuan penelitian ini yaitu mendeskripsikan gambaran komunikasiefektif dan menjelaskan pengaruh komunikasi efektif dengan kepuasan pasien di InstalasiRadiologi. Penelitian ini menggunakan metode kuantitatif dengan pendekatan survei. Kuesionerdibagikan kepada 50 orang responden yang komunikatif. Penelitian ini dilakukan di salah satuInstalasi Radiologi terbesar di Jawa Tengah. Analisis data menggunakan metode deskriptif dananalisis regresi linier berganda. Hasil penelitian menggambarkan bahwa humble merupakan faktordominan dengan nilai mean sebesar 9,48 ± 0,995. Hasil uji F menyatakan bahwa respect, empathy,audible, clarity, dan humble secara simultan berpengaruh terhadap kepuasan pasien dengan sig.0,000. Namun, hasil uji t untuk respect dan emphaty tidak terbukti berpengaruh secara signifikanterhadap kepuasan pasien. Besarnya kontribusi komunikasi efektif terhadap kepuasan pasiensebesar 78,1%.
COMPARISON MEASUREMENT AND CALCULATION OF BRAIN TUMOR IN MRI MODALITIES UTILISING SPIN-ECHO PULSE SEQUENCE T1-WEIGHTED CONTRAST AND DIGITAL IMAGE PROCESSING APPLICATIONS Putri, Maizza Nadia; Kusworo Adi; M.Irwan Katili; Sidin Hariyanto; Dwi Rochmayanti
Journal of Vocational Health Studies Vol. 6 No. 2 (2022): November 2022 | JOURNAL OF VOCATIONAL HEALTH STUDIES
Publisher : Faculty of Vocational Studies, Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jvhs.V6.I2.2022.151-157

Abstract

Background: Evaluation of brain tumor MRI image results performed by radiologists employing the linear measurement method has several weaknesses and is sensitive to subjectivity. Purpose: To compare the results of measurements and calculations of brain tumors utilizing the linear measurement method on the Siemens 1.5 Tesla MRI modality employing pulse sequence spin echo with T1 contrast weighting compared with the results of measurements and calculations of brain tumors utilizing the active contour segmentation method. Method: An experimental study was conducted on 32 MRI images. Result: The study's findings indicated that the linear measurement was more significant than the active contour segmentation method (p-value<0,05). The results were obtained by calculating the sensitivity and specificity values of the diagnostic test, which were calculated to be 87.5%. Conclusion: The active contour segmentation method applied to pulse sequence spin-echo T1-weighted contrast can be utilized as an alternative measurement and calculation of brain tumors with a sensitivity and specificity value of 87.5%. Further research suggests developing a Matlab application to compare the results of measurements and calculations of brain tumors on acquiring 3D image magnetic resonance imaging data.
Optimization of Shoulder Ultrasound Examination Using a Gel-Based Supplementary Applicator Fiddinillah Fiddinillah; Edy Susanto; Dwi Rochmayanti
International Journal of Public Health Vol. 2 No. 3 (2025): September : International Journal of Public Health
Publisher : Asosiasi Riset Ilmu Kesehatan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijph.v2i3.513

Abstract

Air gaps between the probe and the skin surface can produce shadowing artifacts in the presented image. With the help of gel pad Artefact Shadowing can be minimized. However, in ultrasound examination Shoulder ultrasound examination performed with the patient sitting, it is possible that the gel pad is not stay consistently on the examined area. This is due to the pull of the earth's gravity, so the gel pad sheet model is still less supportive for this examination. support for this examination. The aim of this study was to develop a product design in the form of a Gel-based auxiliary applicator to optimize the examination of the Shoulder ultrasound examination, which has been tested for function based on the aspects of comfort and quality of quality of the resulting image. The Research and Development study was conducted with a multidimentional approach, resulting in a product that was tested for comfort by sonographers and tested for comfort by sonographers and image quality by radiologists. interpretation of radiologists. Data processing was done by conducting comparison of ultrasound examination of Supraspinatus Tendon in patients with body weight below 18.5 based on BMI calculation by using standard gel and by using the product, 30 samples each. The product design consists of gel pad and silicon rubber RTV-48. With the composition of the gel pad is gel wax and paraffin (5% of gel wax). Where silicon is designed with a thickness of 2 mm resembling the thickness of human skin. Product test results obtained that the comfort aspect is more optimal with the product than without using the product.
Co-Authors Darmini Darmini Edy Susanto Fiddinillah Fiddinillah Indah Soesanti Jannah, Marichatul Kusworo Adi M.Irwan Katili MAIZZA NADIA PUTR Sidin Hariyanto Thomas Sri Widodo