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    Personal Dosimeters
    (Galenos Publishing House, 2025) Yüksel, Alptuğ Özer; Kovan, Bilal; Özdemir, Semra
    Radiation safety holds primary importance in terms of the individual health protection of radiation workers, occupational safety, and legal obligations. Personal dosimeters are vital equipment used to measure, monitor, and record the levels of exposure to ionizing radiation for individuals working with radiation. From the perspective of legal requirements or individual radiation protection, personal dosimeters must incorporate advancements in technology to offer increased accuracy, portability, and user-friendly features. Copyright© 2025 Yazar.
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    Y-90 Microsphere Radioembolization Dosimetry
    (Galenos Publishing House, 2025) Kovan, Bilal; Medyenoğlu, Muhammed; Demir, Mustafa; Özdemir, Semra
    The need for dosimetric calculations has arisen to enhance the therapeutic efficacy of Yttrium-90 (Y-90) microsphere therapy, determine tumor absorbed dose threshold values, and accurately identify lung tolerance dose thresholds and liver toxicity thresholds. In microsphere therapies, there are three different dosimetry approaches: standard dosimetry, multicompartment dosimetry, and voxel-based dosimetry. Dosimetric procedures are generally performed using Technetium-99m macroaggregated albumin. However, dosimetry based on scintigraphic images obtained from positron emission tomography/computed tomography (CT) or single photon emission computerized tomography/CT after Y-90 administration is also feasible. Copyright© 2025 Yazar.