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Congress: ECR25
Poster Number: C-17004
Type: Poster: EPOS Radiologist (scientific)
DOI: 10.26044/ecr2025/C-17004
Authorblock: D. Kostova-Lefterova, A. Zagorska, F. N. Simeonov, I. Dyakov; Sofia/BG
Disclosures:
Desislava Kostova-Lefterova: Nothing to disclose
Anna Zagorska: Nothing to disclose
Filip Nikolov Simeonov: Nothing to disclose
Iliya Dyakov: Nothing to disclose
Keywords: eHealth, Radiation physics, Radioprotection / Radiation dose, CT, Digital radiography, PACS, Physics, Radiation safety, Quality assurance
Results

BulDose collects patient exposure data in RDSR format or DICOM format from PACS or directly from the imaging modalities, performs basic statistical analysis, including generation of typical doses and local diagnostic reference levels. It is a web-based application, with graphical interface in Bulgarian and English languages (fig. 1).

Fig 1: Home screen of BULDose, a web-based application, with graphical interface in Bulgarian and English languages.
Connection to different PACS systems is facilitated via DICOM protocol. Computed tomography, interventional radiology, nuclear medicine with hybrid imaging modalities, radiography, fluoroscopy, and mammography are supported. The platform was developed using the Microsoft© Visual Studio environment as a web application using ASP.NET technology. The MVC (Model-View-Controller) design pattern was used. BULDose is available locally on the hospital network through the most commonly used internet browsers and does not require any additional software installed on the client machine.

The platform supports the following types of users: Administartor, Physicist/Specialist (MPE), different from the administrator and Physician, all of them with different access and rights. The DMS is able to collect patient exposure data, perform basic statistical analysis, including generation of local diagnostic reference levels, with important functionalities to facilitate its users. It supports 4 different types of patient search: 1) by patient identificator/Patient ID, 2) by patient name, 3) filter adults with high-dose and multiple studies, 4) filter children - patients under 18 with more than one study. BULDose supports search for the time period and for patients exceeding pre-set trigger levels for radiation-induced skin injuries. The visuals are provided for thesearch results in a table with colored cells of the exceeded levels, sorted by the number of exceeded trigger levels per patient, with possibility of date export (fig. 2, fig. 3).

Fig 2: Table with colored cells of exceeded trigger levels for radiation-induced skin injuries.
Fig 3: An example of table with examinations and test patients, sorted by the number of exceeded trigger levels per patient, with possibility of date export.
Option to anonymize patient data before exporting to data is also incorporated. When exporting a patient data that has multiple types of examinations, the export is performed separately. Protocol Age Category is laso included before exporting the desired data.

The DMS provides data vizualzation via charts for all imaging modlaities, includig histograms for specific examinations and localizations; common chart for all protocols and protocol vs dose; number (dose (range)) – depending on the specific dose index by modality; box plot for specific study and localization/minimum, maximum, median, first and third quartile; threshold chart with overview of the number of exams, or patients that are below and above a defined DRL for a selected value of interest. Examples are shown of fig. 4-7.

Fig 4: An example of box plot for specific study.
Fig 5: Option to add and modify diagnostic reference levels.
Fig 6: An example of overview of the number of exams.
Fig 7: An example of different chart options.

 
GALLERY