Anisa Nur Istiqomah
Aisyiyah University Of Yogyakarta

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PENGARUH VARIASI ARUS TABUNG TERHADAP KONTRAS PADA PESAWAT SINAR-X HIGH GENERATOR Asih Puji Utami; Anisa Nur Istiqomah
Jurnal Imejing Diagnostik (JImeD) Vol 6, No 1: January 2020
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jimed.v6i1.5412

Abstract

Background: The use of exposure factors with high voltage / kV and low tube current / milliAmpere (mA) will provide a low radiation dose to the patient and radiographic results that provide good contrast and can reduce the onset of geometric movements. This research is to find out and study the variation of tube current/ milliAmpere (mA) on the image quality and radiation dose received by patients in the Radiology laboratory of Aisyiyah University, Yogyakarta.Methods: This type of research is an experimental study with a quantitative inferential approach, conducted at the Radiology Laboratory of the University of ‘Aisyiyah Yogyakarta. The independent variable is the tube current variation (32 and 100 mA), the dependent variable is the contras. Data collection was carried out by exposing the radiographic panthom and measuring the radiation dose with the Ray Safe X2 device. Radiograph results were analyzed by contras radiograph. Then the results will be analyzed using descriptive statistical analysis and linear regression. by testing the regression line hypothesis, the statistical test f, the statistical test t, the coefficient of determination.Results: The results showed that there was an influence of changes in tube currents (100 and 32 mA) on  Soft tissue-air contrast. While the change in tube current (100 mA and 32mA) does not affect the bone-Soft tissue contrast. In order to reduce the radiation dose received by the patient, it can use a low mA value while still being able to maintain the quality of the image.Conclusions: No influence of mA change (100 and 32) on bone contrast-Soft tissue and there are influence of mA changes (100 and 32) on the contrast of Soft tissue-air.
OPTIMALISASI TEKNIK PEMERIKSAAN RADIOGRAFI FEMUR PADA PASIEN POST ORIF KASUS FRAKTUR DI INSTALASI RADIOLOGI RSUP DR. SARDJITO YOGYAKARTA Ni Made Karlyna Yanti; Anisa Nur Istiqomah; Retno Wati
HEALTHY : Jurnal Inovasi Riset Ilmu Kesehatan Vol. 5 No. 4 (2026)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/healthy.v5i4.15177

Abstract

ABSTRACT Femoral fractures following Open Reduction Internal Fixation (ORIF) require radiographic examination to evaluate implant position, fracture lines, and bone alignment. Pain and limited patient mobility may hinder standard lateral projection, necessitating a modified technique. This study aimed to determine the radiographic examination procedure for post-ORIF femur cases, the rationale for using a lateral cross-table projection with a 35° cephalad beam angulation, and the anatomical information obtained. This qualitative study employed a case study approach at the Radiology Department of Dr. Sardjito General Hospital, Yogyakarta. The subjects consisted of three radiographers and one radiologist. Data were collected through observation, in-depth interviews, and documentation, followed by qualitative descriptive analysis. The examination used Anteroposterior (AP) and lateral cross-table projections with a 35° cephalad beam angulation. This modification was applied because pain and limited mobility prevented the use of the standard lateral projection. The 35° angulation provided clearer visualization of the femoral head, femoral neck, proximal femur, implant, fracture line, and bone alignment, while reducing superimposition with the pelvis and contralateral femur. However, the technique resulted in geometric distortion and magnification. A lateral cross-table projection with 35° cephalad beam angulation is an effective alternative to the standard lateral projection in post-ORIF patients, particularly when patient mobility is limited, while geometric distortion and magnification should be considered as technical limitations. ABSTRAK Fraktur femur pasca Open Reduction Internal Fixation (ORIF) memerlukan pemeriksaan radiografi untuk mengevaluasi posisi implan, garis fraktur, dan alignment tulang. Nyeri serta keterbatasan gerak pasien dapat menghambat pelaksanaan proyeksi lateral standar sehingga diperlukan modifikasi teknik. Penelitian ini bertujuan mengetahui prosedur pemeriksaan radiografi femur post ORIF, alasan penggunaan proyeksi lateral cross-table dengan penyudutan sinar 35° ke arah cephalad, serta informasi anatomi yang dihasilkan. Penelitian kualitatif dengan pendekatan studi kasus dilakukan di Instalasi Radiologi RSUP Dr. Sardjito Yogyakarta. Subjek terdiri atas tiga radiografer dan satu dokter spesialis radiologi. Data diperoleh melalui observasi, wawancara mendalam, dan dokumentasi, kemudian dianalisis secara deskriptif kualitatif. Pemeriksaan menggunakan proyeksi Anteroposterior (AP) dan lateral cross-table dengan penyudutan sinar 35° ke arah cephalad. Modifikasi ini diterapkan karena nyeri dan keterbatasan gerak pasien tidak memungkinkan lateral standar. Penyudutan 35° menghasilkan visualisasi head femur, femoral neck, femur proksimal, implan, garis fraktur, dan alignment yang lebih jelas serta mengurangi superposisi dengan pelvis dan femur kontralateral. Teknik ini tetap menimbulkan distorsi geometris dan magnifikasi. Proyeksi lateral cross-table dengan penyudutan 35° cephalad efektif sebagai alternatif lateral standar pada pasien post ORIF, khususnya ketika mobilisasi pasien terbatas, dengan tetap mempertimbangkan distorsi dan magnifikasi sebagai keterbatasan teknik.