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Ni Nyoman Ratini

Publications (10)

Automatic Segmentation of Organ at Risk in Head and Neck Cancer CT Images Using Medical Open Network for Artificial Intelligence (MONAI) with Deep Learning Techniques

I G. A. Anom Widyartha, Ni Nyoman Ratini, A. A. Ngurah Gunawan, Gusti Ngurah Sutapa, Ni Made Yuliara & I G. Antha Kasmawan · Asian Journal of Medicine and Health · 2025

Aims: This study aims to evaluate the deep learning-based Medical Open Network for Artificial Intelligence (MONAI) framework in performing automatic segmentation of Organ at risk (OAR) structures, especially in cases of head and neck cancer. Study Design: This research an experim...

Open access Research Article 10.9734/ajmah/2025/v23i71274

Assessment of Cancer Risk from Fluorscopic Bile Duct Examinations at Sanjiwani Hospital, Gianyar

Gusti Widhi Ratih Saraswati, Ni Nyoman Ratini, Anak Agung Ngurah Gunawan, I Nengah Sandi, I Gusti Ayu Ratnawati & Ida Bagus Alit Paramarta · Asian Journal of Medicine and Health · 2025

Aim: Study on the Assessment of Cancer Risk from Fluoroscopic Bile Duct Examinations at Sanjiwani Hospital, Gianyar the aim is to determine the magnitude of the effective dose received by bile duct patients during fluoroscopic, to determine whether there is a difference between m...

Open access Research Article 10.9734/ajmah/2025/v23i71272

Comparison of Effective Radiation Dose in CT Scan Abdomen Examination of Male and Female Patients with IndoseCT Application

Noferlianus Hulu, Ni Nyoman Ratini, I Gusti Agung Widagda, Gusti Ngurah Sutapa, I Gde Antha Kasmawan, I Made Yuliara & Anak Agung Ngurah Gunawan · Asian Journal of Medicine and Health · 2025

Aim: This study aims to compare the effective dose of radiation in abdominal CT scan examination of male and female patients using IndoseCT version 20.b application. The focus of the study is on abdominal CT scans of adult male and female patients. Study Design: This study used a...

Open access Research Article 10.9734/ajmah/2025/v23i41200

Effect of Variation Number of Excitation (NEX) Parameter on the Quality Image of Magnetic Resonance Imaging Genu on T2 Weighted Image Sequence at Bali Mandara Regional General Hospital, Indonesia

Ni Putu Sri Wulan Ningsih, Ni Nyoman Ratini, I Gusti Agung Widagda, Ni Kadek Nova Anggarani, Ni Luh Putu Trisnawati, Komang Ngurah Suarbawa & Anak Agung Ngurah Gunawan · Asian Journal of Medicine and Health · 2025

Aim: Study on the effect of NEX parameter variations on image quality in T2WI sequences on genu MRI images aims to determine the effect of Number of Excitation (NEX) variations on image quality which is influenced by scanning time and Signal to Noise Ratio (SNR) and determine the...

Open access Research Article 10.9734/ajmah/2025/v23i41199

Prediction of Radiotherapy Dose Distribution for Glioblastoma Using Convolutional Neural Network Model

Ni Made Dian Rani, Ni Nyoman Ratini, Anak Agung Ngurah Gunawan, Gusti Ngurah Sutapa, Hery Suyanto & I Gde Antha Kasmawan · Asian Journal of Medicine and Health · 2025

Aims: This study aims to predict radiotherapy dose distribution for glioblastoma patients using Machine Learning with a Convolutional Neural Network (CNN) model. Study Design:  This research used an experimental design with a quantitative approach to predict radiotherapy dose dis...

Open access Research Article 10.9734/ajmah/2025/v23i41198

Wedge Filter Variation on Wedge Factor in Patients Cancer Breast in Sub Installation Radiotherapy RSUP Prof. Dr. I.G.N.G Ngoerah

Ni Putu Divananda Purwaningrum, Ni Nyoman Ratini, Anak Agung Ngurah Gunawan, Ni Kadek Nova Anggarani, I. Gusti Agung Putra Adnyana & I. Gde Antha Kasmawan · Asian Journal of Medicine and Health · 2023

The aim of the study was to determine the effect of irradiation time, the percentage of the maximum dose, the distribution of doses at the center point, and the wedge factor on wedge filter variations. The research method uses a wedge filter to measure irradiation time, maximum d...

Open access Research Article 10.9734/ajmah/2023/v21i10898

Compliance Test of Percentage Depth Dose (PDD) Using LINAC Machine Brand Electa Precise against American Association of Physicists in Medicine (AAPM) PDD with Electron Beam Energy Variation at Radiotherapy Installation RSUP Prof. Ngoerah in Denpasar

Naumi Paramita Putri Monicasari, Ni Nyoman Ratini, I. Wayan Balik Sudarsana, Ida Bagus Made Suryatika, Ir. Putu Suardana, I. Gusti Agung Widagda, Anak Agung Ngurah Gunawan & Rozi Irhas · Asian Journal of Medicine and Health · 2023

The purpose of the study was to determine the value of PDD against energy variations in the electron beam using the Elekta Precise Brand LINAC aircraft, and to determine the suitability of the PDD value against energy variations in the electron beam with the standards set by AAPM...

Open access Research Article 10.9734/ajmah/2023/v21i10897

Analysis of Radiation Dose Distribution and Organs at Risk in Breast Cancer Using Intensity Modulated Radiation Therapy Technique on A Linear Accelerator at RSUP Prof. Dr. I.G.N.G. Ngoerah

Luqyana Latifa, Ni Nyoman Ratini, I. Wayan Balik Sudarsana, Ida Bagus Made Suryatika, I. Gusti Ayu Ratnawati, Anak Agung Ngurah Gunawan & Rozi Irhas · Asian Journal of Medicine and Health · 2023

The aim of the study was to analyze the radiation dose distribution in breast cancer cases using IMRT techniques on a LINAC equipment, specifically examining the Conformity Index (CI), Homogeneity Index (HI), and radiation dose distribution to the OAR, including lungs and heart o...

Open access Research Article 10.9734/ajmah/2023/v21i8840

Analysis of Radiation Dose Distribution in Nasopharyngeal and Organ Cancer Cases at Risk with Linear Accelerator Radiotherapy 6 MV Photon Energy Using the IMRT Technique at Prof. Hospital. Dr. I. G. N. G. Ngoerah

Safitri Rahmaniyah, Ni Nyoman Ratini, I. Wayan Balik Sudarsana, Ida Bagus Made Suryatika, Komang Ngurah Suarbawa, I. Nengah Artawan, Anak Agung Ngurah Gunawan & Rozi Irhas · Asian Journal of Medicine and Health · 2023

This study aims to determine the distribution of radiation doses on PTV and OAR radioteraphy planning in RSUP. Prof. Dr. I.G.N.G Ngoerah, Bali, Indonesia does no exceed a predetermined limit. The research metode used is the value of Homogenity Index (H), Conformity Index (CI), an...

Open access Research Article 10.9734/ajmah/2023/v21i8838

Analysis of Acceptance of Radiation Doses for Radiation Workers in the Radiology Facility of Bali Mandara Hospital

Dinda Ajeng Cintia Imelda, Gusti Ngurah Sutapa, I. Gusti Agung Ayu Ratnawati, Ni Nyoman Ratini, Ida Bagus Alit Paramarta, A. A. Ngurah Gunawan & I. Komang Widiana · Asian Journal of Medicine and Health · 2023

Aims: • To determine the dose of radiation received by radiation workers at the Radiology Facility of Bali Mandara Hospital based on differences in work professions, • Knowing the suitability of the amount of radiation dose received by radiation workers is still within the limits...

Open access Research Article 10.9734/ajmah/2023/v21i5809