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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

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.

PERBEDAAN INFORMASI CITRA SEKUEN THICK-SLAB SINGLE-SHOT FAST SPIN ECHO (SS-FSE) DAN SEKUEN 3D-FAST SPIN ECHO (FSE) PADA PEMERIKSAAN MAGNETIC RESONANCE CHOLANGIOPANCREATICOGRAPHY (MRCP) Anisa Nur Istiqomah; Hermina Sukmaningtyas; Luthfi Rusyadi
JRI (Jurnal Radiografer Indonesia) Vol. 1 No. 1 (2018)
Publisher : Perhimpunan Radiografer Indonesia (PARI)

Backgroud:There are sequences that have the same image and assessment functions are sequences thick-slab SS- FSE and 3D-FSE. Each hospital uses a different sequences for MRCP examination. Based on the different uses of these sequences carried out research with the aim to determine differences in image information thick-slab SS- FSE and 3D-FSE sequences and also to see better sequence for MRCP examination. Methods: Type of this research is quantitative with observation approach. Ten patient have diagnose system biliaris and pancreas disease undergo MRCP with thick-slab SS-FSE and 3D-FSE sequence. Assessment images information using questionnaire that were read by three radiologist. Inter observer agreement examined by Cohen’s Kappa test. Analysis to discover the different of anatomy information, conspicuity of lesion, and artifact using cross tabulation and Wilcoxon test. To discover better sequence observe the mean rank of wilcoxon test. Results: Result of this research demonstrate that there’s significantly different between sequence thick-slab SSFSE and 3D-FSE toward anatomy information p=0,010; conspicuity of lesion p=0,013; artifact p=0,008; Cystic Duct p=0,157; intra hepatic duct p=0,405. Conclusion:There are significant image informationdifferences of Thick-slab SS-FSE and 3D-FSE sequences in MRCP examination.Better sequence for MRCP examination is thick-slab SS-FSE because short acquisition time and less artifact also showing conspicuity of lesion clearly. Sequence 3D-FSE still used to see small ductus as intra hepatic duct.

PERBEDAAN DENSITAS DAN KONTRAS THORAX DENGAN MENGGUNAKAN GRID DAN TANPA GRID Asih Puji Utami; Justhika Anggriani; Anisa Nur Istiqomah
JRI (Jurnal Radiografer Indonesia) Vol. 2 No. 2 (2019)
Publisher : Perhimpunan Radiografer Indonesia (PARI)

ABSTRACT Thorax examination involves the projection of Posterior Anterior, Posterior Anterior and Lateral Anterior. When doing a thorax examinationin a standing position, the object must face the bucky PA or Lateral projection stand. The study aims to determine the difference between density and thorax radiograph contrast using a grid and without a grid. The study employed quantitative descriptive method. The results show that radiographs using grids had a low density and high contrast due to the grid function which absorbed scattered radiation coming out of X-ray tubes, so that the image could distinguish between soft tissue, bone and mediastinum. Whereas on a no-grid radiograph, it had high density and contrast because all the radiation coming out of the X-ray tube was absorbed by the image receptor, therefore the resulting image was too black and not optimal in distinguishing soft tissue, bone and mediastinum. In examining the thorax, it will be more optimal by using a grid, but it can also be regulated by exposure factors.

The role of virtual grid to increase contrast-to-noise ratio in thorax radiography Liscyaningsih, Ike Ade Nur; Mahanani, Ayu; Istiqomah, Anisa Nur; Ma’ruf, Muhammad Alwan
International Journal of Health Science and Technology Vol. 6 No. 2 (2024): November
Publisher : Universitas 'Aisyiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31101/ijhst.v6i2.3756

Thorax is a dense object, necessitating the use of a grid. However, hospitals use physical grids, which have drawbacks such as increased doses, appearance of artifacts, and a lack of ergonomics. To address these issues, virtual grid technology has been developed. This study aims to describe the thorax radiographic examination using a virtual grid and to compare the CNR of thorax radiographs using physical and virtual grids. This study uses a mixed-methods experimental, conducted at the Radiology Laboratory of 'Aisyiyah University Yogyakarta from November 2023 to May 2024. Data were collected through observation and experiments with a thorax phantom, physical and virtual grids, and CNR measurements at 5 points on images using ImageJ. The sample is thorax radiographic was tested in 5 trials each. Data analysis was performed using the paired samples T-Test. The results of thorax radiographic imaging using the virtual grid showed that after exposure, the image appeared on the monitor. Activating the virtual grid feature (ON) with 8:1 grid ratio, CNR were measured at each ROI. CNR with the physical grid were average of 27.22. With the virtual grid, the CNR were average of 40.81. These results indicate that the image quality using the virtual grid is superior. Statistical analysis showed a significant difference, with a p-value of 0.018. These findings suggest that the virtual grid not only improves image quality but also enhances workflow efficiency and operational ergonomics examinations. Future studies should explore the broader applicability of virtual grid technology in different radiographic modalities.

GAMBARAN TINGKAT PENGETAHUAN RADIOGRAFER TENTANG PENGGUNAAN DOSIMETER PERSONAL DI INSTALASI BEDAH SENTRAL RSUD KOTAYOGYAKARTA Manangin, Nadiya; Istiqomah, Anisa Nur; Utami, Asih Puji; Zen, Taufiq Fachruddin
PREPOTIF : JURNAL KESEHATAN MASYARAKAT Vol. 9 No. 2 (2025): AGUSTUS 2025
Publisher : Universitas Pahlawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/prepotif.v9i2.46394

Radiasi pengion dapat menimbulkan efek berbahaya bagi kesehatan tenaga medis, baik efek stokastik maupun deterministik. penggunaan dosimeter personal menjadi penting sebagai alat pemantauan paparan radiasi. Menurut Peraturan BAPETEN Nomor 4 Tahun 2020 telah mewajibkan penggunaan dosimeter personal, tingkat pemahaman dan kepatuhan radiografer terhadappenggunaan alat ini masih beragam. Penelitian terdahulu sebagian besar hanya menyoroti aspek kepatuhan atau penggunaan dosimeter secara umum di instalasi radiologi, namun belum banyak yang meneliti secara spesifik pada Instalasi Bedah Sentral, dimana paparan radiasi berlangsung secara langsung dan intensif. Inilah yang menjadi celah dalam penelitian sebelumnya. Penelitian ini bertujuan mengetahui gambaran tingkat pengetahuan radiografer tentang penggunaan dosimeter personal diInstalasi Bedah Sentral RSUD Kota Yogyakarta. Metode penelitian ini menggunakan mixed method dengan pendekatan explanatory. Data kuantitatif diperoleh melalui kuesioner dan dianalisis secara univariat untuk mengetahui distribusi frekuensiserta nilai rata-rata, median, modus. Sementara itu, data kualitatif diperoleh melalui wawancara mendalam dan observasi, kemudian dianalisis dengan melakukan reduksi data, tabel kategorisasi hingga koding terbuka dan penyajian data dalam bentuk narasi. Hasil penelitian radiografer menunjukkan tingkat pengetahuan yang sangat baik terkait penggunaan dosimeter personal, termasuk fungsi, jenis, prosedur penggunaan, dan tindakan saat terjadi paparan berlebih. Pengetahuan radiografer diperoleh melalui pengalaman kerja dan arahan Petugas Proteksi Radiasi. Dapat disimpulkan bahwa tingkat pengetahuan radiografer di Instalasi Bedah Sentral RSUD Kota Yogyakarta tergolong sangat baik. Namun untuk penelitian selanjutnya disarankan untuk melibatkan lebih banyak responden guna mendapatkan data yang lebih representatif.

STUDI KASUS TEKNIK PEMERIKSAAN CERVICAL ADENOID PADA PEDIATRIK DENGAN KLINIS OTITIS MEDIA EFUSI (OME) DI INSTALASI RADIOLOGI RSUP DR. SARDJITO YOGYAKARTA Desinta, Vina; Istiqomah, Anisa Nur; Nasokha, Ildsa Maulidya Mar’atus
Jurnal Kesehatan Tambusai Vol. 6 No. 2 (2025): JUNI 2025
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jkt.v6i2.44897

Sistem pernapasan berperan penting dalam pertukaran gas, bagian penting dari sistem pernafasan adalah nasofaring, yang dapat mengalami pembesaran jaringan limfoid adenoid terutama pada anak. Pembesaran adenoid sering dikaitkan dengan Otitis Media Efusi (OME), yaitu penumpukan cairan di telinga tengah. Penelitian ini bertujuan untuk mengetahui prosedur pemeriksaan, alasan penggunaan proyeksi lateral, dan peran teknik open mouth dalam pemeriksaan cervical adenoid pada pediatrik dengan klinis OME di RSUP Dr. Sardjito Yogyakarta. Penelitian ini menggunakan metode kualitatif dengan pendekatan studi kasus. Data dikumpulkan observasi, wawancara, dan dokumentasi terhadap tiga radiografer dan satu dokter radiologi di Instalasi Radiologi RSUP Dr. Sardjito Yogyakarta pada bulan September 2024 hingga Februari 2025. Hasil menunjukkan pemeriksaan tidak memerlukan persiapan khusus hanya melepas benda logam. Pemeriksaan cervical proyeksi lateral open mouth posisi pasien berdiri, kepala sejajar kaset, dan open mouth. Kolimasi mencakup frontalis hingga sepertiga proksimal thorax, central point pada vertebrae C4. Prosedur pemeriksaan sudah sesuai dengan teori, namun terdapat perbedaan pada penentuan central point, batas atas dan bawah kolimasi. Lateral cervikal dipilih karena mampu menampilkan struktur adenoid lebih jelas, tanpa ada bayangan tulang tengkorak seperti tulang frontal dan oksipital. Sebaliknya lateral cranium, memperlihatkan bayangan tulang yang menutupi nasofaring, sehingga menghambat visualisasi adenoid. Open mouth menghindari superposisi mandibula, memudahkan penilaian ukuran adenoid. Proyeksi lateral dapat menegakkan diagnosa efektif mengevaluasi adenoid. Sebaiknya penerapan proteksi radiasi dioptimalkan melalui penyesuaian kolimasi sesuai dengan prinsip optimisasi dalam ALARA pengaturan kolimasi tepat efektif mengurangi dosis radiasi dan meningkatkan keselamatan pasien, evaluasi adenoid dapat dilakukan nasoendoskopi untuk menilai adanya obstruksi saluran napas akibat pembesaran adenoid.

Analisis Pengulangan (REPEAT) Foto Panoramik di Instalasi Radiologi RSPAU Dr. Suhardi Hardjolukito Azizah Azizah; Anisa Nur Istiqomah; Sofie Nornalita Dewi
Nusantara: Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 3 (2025): Agustus : NUSANTARA Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/nusantara.v5i3.6500

Panoramic radiography is an imaging technique that plays a crucial role in dental practice, particularly in supporting the diagnosis and treatment planning process. Image quality that does not meet diagnostic standards can lead to the need for repeat imaging. The high rate of repeat panoramic imaging at the Radiology Unit of Dr. Suhardi Hardjolukito Air Force Base Hospital (RSPAU) is an indicator of the need for further study of the causal factors. The purpose of this study was to identify the causes of repeat panoramic radiography examinations, calculate the percentage contribution of each factor, assess radiographers' understanding of optimal image quality criteria, and explore appropriate strategies to reduce the frequency of repeat examinations. This study used a mixed methods approach with quantitative and qualitative descriptive approaches. Data were collected through observation, interviews, questionnaires, and documentation during August–October 2024 at the Radiology Unit of Dr. Suhardi Hardjolukito Air Force Base Hospital. The sample included 15 radiographers for the questionnaire and 3 radiographers for the interviews. An analysis of 916 panoramic radiography examinations revealed 57 repeat cases, with a rate of 6.2%. The primary factors causing repeats were machine error (57.8%), followed by positioning errors (24.5%), artifacts (10.5%), human error (5.3%), and patient movement (1.8%). Radiographers' understanding of the criteria for good panoramic images was high, with 66.7% answering all questions correctly. The primary effort implemented to reduce repeat rates is the implementation of routine quality control of equipment. The high repeat rate, exceeding national tolerance limits, indicates the need for technical and procedural improvements. Routine quality control and material refresher courses are needed to reduce repeat rates and improve patient safety.

ANALISIS PERBANDINGAN INFORMASI CITRA ABDOMEN DENGAN MENGGUNAKAN PHYSICAL GRID DAN VIRTUAL GRID Ayunni, Erlyana Eka Candra; Liscyaningsih, Ike Ade Nur; Istiqomah, Anisa Nur
PREPOTIF : JURNAL KESEHATAN MASYARAKAT Vol. 9 No. 2 (2025): AGUSTUS 2025
Publisher : Universitas Pahlawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/prepotif.v9i2.45165

Abdomen merupakan objek tebal pada manusia, sehingga diperlukan faktor eksposi tinggi pada pemeriksaan radiografi. Faktor tersebut akan mengakibatkan adanya radiasi hambur yang dapat menurunkan kualitas citra, maka diperlukan penggunaan grid untuk meningkatkannya. Physical grid memiliki kekurangan noise yang muncul pada radiograf disebabkan oleh jumlah foton sinar-X yang mencapai detektor bervariasi. Sedangkan virtual grid memiliki kelebihan dapat meningkatkan kualitas citra dengan cara menggabungkan radiasi hambur dan radiasi primer sampai ke detektor. Sehingga radiasi hambur menjadi lebih kecil dan radiasi primer menjadi lebih besar. Tujuan penelitian ini adalah untuk mengetahui perbandingan informasi citra abdomen dengan menggunakan physical grid dan virtual grid. Metode yang digunakan adalah kuantitatif dengan pendekatan eksperimen. Penelitian dilaksanakan pada bulan September 2024 hingga bulan April 2025. Metode pengambilan data yang digunakan adalah kuesioner dengan 1 dokter spesialis radiologi sebagai validator kuesioner dan 3 dokter spesialis radiologi sebagai responden dengan minimal kerja 10 tahun. Hasil dari kuesioner kemudian dianalisis menggunakan SPSS dengan uji Wilcoxon. Didapatkan hasil uji Wilcoxon, dapat diketahui bahwa nilai Asymp. Sig. (2-tailed) yang diperoleh adalah 0,034. Nilai tersebut lebih kecil dari 0,05 atau nilai signifikansi (p-value) yang digunakan, sehingga H1 diterima yaitu terdapat perbedaan informasi citra pada radiograf abdomen dengan menggunakan physical grid dan virtual grid. Terdapat perbedaan informasi citra pada citra abdomen dengan menggunakan physical grid dan virtual grid. Informasi citra dengan menggunakan virtual grid akan memvisualisasikan anatomi dengan lebih baik dibandingkan dengan menggunakan physical grid. Maka dari itu, penggunaan virtual grid lebih disarankan dibandingkan menggunakan physical grid.

ANALISIS KUALITAS CITRA DIGITAL RADIOGRAPHY ABDOMEN NON-KONTRAS BERDASARKAN NILAI SNR DAN CNR DENGAN TEKNIK PENGOLAHAN CITRA PHYTON Ridho Hadi Nugraha; Anshor Nugroho; Anisa Nur Istiqomah
Journal of Innovation Research and Knowledge Vol. 5 No. 5 (2025): Oktober 2025
Publisher : Bajang Institute

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

Background: Non-contrast abdominal radiography is an important diagnostic procedure in radiology for detecting abnormalities in the abdominal organs. Image quality is evaluated through the Signal-to-Noise Ratio (SNR) and Contrast-to-Noise Ratio (CNR) to measure the signal-tonoise ratio and the ability to distinguish contrast between anatomical structures. Image processing using Python allows for improved image quality at low exposures, in line with the ALARA (As Low As Reasonably Achievable) principle of minimizing radiation dose without compromising diagnostic accuracy. However, studies on optimizing non-contrast abdominal images using this technique are still limited, particularly in reducing the effects of scattered radiation on thick objects such as the abdomen. Methods: This study employed a quantitative experimental approach. An adult abdominal phantom was used. The study was conducted in the Radiology Laboratory of Universitas ‘Aisyiyah Yogyakarta, from March 2025 to May 2025. Data collection was conducted through documentation and processing using Python on Google Colab. The SNR and CNR values of noncontrast abdominal images before and after image enhancement were calculated using Non-Local Means (NLM) and Histogram Equalization (HE). The Shapiro-Wilk normality test and paired sample t-test were then performed. Results: The calculated SNR value increased from an average of 8.73 to 11.66, and the CNR increased from an average of 1.69 to 4.28. The data were normally distributed (p>0.05), and there was a significant difference in SNR (p=0.0019) and CNR (p=0.0003) before and after enhancement (p<0.05). Conclusion: Based on the results of this study, image processing using Python effectively improves the quality of non-contrast abdominal radiographic images at low exposures, supporting diagnostic accuracy and reducing radiation dose.

ANALISIS KUALITAS CITRA SNR DAN CNR PADA PEMERIKSAAN MANUS DENGAN MENGGUNAKAN PHYTON Rida Amila; Amril Mukmin; Anisa Nur Istiqomah
Journal of Innovation Research and Knowledge Vol. 5 No. 5 (2025): Oktober 2025
Publisher : Bajang Institute

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

Latar Belakang: Kualitas citra radiografi memiliki peran penting dalam menunjang ketepatan diagnosis, terutama pada pencitraan bagian tubuh dengan struktur kompleks seperti manus. Penilaian kualitas citra dapat dilakukan secara objektif menggunakan parameter Signal to Noise Ratio (SNR) dan Contrast to Noise Ratio (CNR). Penelitian ini bertujuan untuk menganalisis peningkatan kualitas citra radiografi manus berdasarkan nilai SNR dan CNR setelah dilakukan pengolahan menggunakan filter Gaussian melalui bahasa pemrograman Python. Metode: Penelitian ini menggunakan pendekatan kuantitatif eksperimental dengan data berupa 10 citra radiografi manus format DICOM dari Instalasi Radiologi RSUD Panembahan Senopati Bantul. Citra diolah menggunakan Python melalui Google Colab dengan tahapan unggah data, penghubungan ke Google Drive, pemilihan ROI secara manual, penerapan filter Gaussian, dan perhitungan nilai mean, standar deviasi, noise, SNR, serta CNR. Nilai-nilai tersebut dibandingkan sebelum dan sesudah pengolahan untuk menilai peningkatan kualitas citra. Hasil: pengolahan citra dengan filter Gaussian secara signifikan meningkatkan kualitas citra radiografi manus. Nilai SNR meningkat sebesar 35,90%, dari 78 menjadi 106, yang mengindikasikan perbandingan sinyal terhadap gangguan noise menjadi lebih baik. CNR juga mengalami peningkatan sebesar 3,30%, dari 6 menjadi 6,198, menunjukkan bahwa objek dan latar belakang citra menjadi lebih mudah dibedakan. Nilai noise menurun sebesar 36,75%, dari 2 menjadi 1,264, yang berarti noise pada citra berhasil ditekan. Terjadi peningkatan pada nilai mean intensity sebesar 0,68%, dari 119 menjadi 119,805, serta penurunan standar deviasi intensitas sebesar 5,23%, dari 14 menjadi 13,267. Kesimpulan: Pengolahan citra radiografi manus menggunakan filter Gaussian dalam program Python terbukti dapat meningkatkan kualitas citra secara kuantitatif, terutama dalam hal kontras dan kejernihan tampilan struktur. Pendekatan ini dapat menjadi alternatif praktis dalam analisis citra radiografi digital tanpa harus mengubah parameter eksposi. Pengembangan kedepan disarankan program dilengkapi tampilan interaktif DICOM viewer agar pemilihan ROI lebih cepat serta otomatis ROI dengan deteksi objek untuk meningkatkan akurasi dan konsisten

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