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Dual Application of Polyvinyl Alcohol Glutaraldehyde Methylthymol Blue Fricke Hydrogel in Clinical Practice: Surface Dosimeter and Bolus Publisher Pubmed



Sheykholeslami N1 ; Parwaie W2 ; Vaezzadeh V3 ; Babaie M3 ; Farzin M4 ; Geraily G1, 3 ; Karimi AH1, 3
Authors
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Authors Affiliations
  1. 1. Department of Medical Physics and Biomedical Engineering, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Laboratory Sciences, School of Allied Medical Sciences, Ilam University of Medical Sciences, Iran
  3. 3. Radiation Oncology Research Center, Cancer Institute, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Science, Tehran, Iran

Source: Applied Radiation and Isotopes Published:2023


Abstract

An essential issue is an accurate evaluation of surface dose distribution for such sensitive treatments. This work aimed to feasibility of the dual application of the Ferrous Polyvinyl Alcohol Glutaraldehyde Methylthymol Blue (PVA-GTA-MTB) gel as a bolus compensator and surface dosimeter in breast radiotherapy. The differences between the surface dose measured using PVA-GTA-MTB gel and film dosimetry in the medial and lateral parts of the breast were 3.74% and 4.18%, respectively. A qualitative comparison of the isodose curves showed that the PVA-GTA-MTB bolus creates a uniform dose distribution similar to the superflab bolus in the target volume. © 2023 Elsevier Ltd