Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems
Tissue mimicking phantoms are frequently used in hyperthermia applications for device and protocol optimization. Unfortunately, a commonly experienced limitation is that their precise thermal properties are not available. Therefore, in this study, the thermal properties of three currently used QA ph...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/16/4549 |
| _version_ | 1797558213123506176 |
|---|---|
| author | Laura Farina Kemal Sumser Gerard van Rhoon Sergio Curto |
| author_facet | Laura Farina Kemal Sumser Gerard van Rhoon Sergio Curto |
| author_sort | Laura Farina |
| collection | DOAJ |
| description | Tissue mimicking phantoms are frequently used in hyperthermia applications for device and protocol optimization. Unfortunately, a commonly experienced limitation is that their precise thermal properties are not available. Therefore, in this study, the thermal properties of three currently used QA phantoms for deep hyperthermia are measured with an “off-shelf” commercial thermal property analyzer. We have measured averaged values of thermal conductivity (<i>k</i> = 0.59 ± 0.07 Wm<sup>−1</sup>K<sup>−1</sup>), volumetric heat capacity (<i>C =</i> 3.85 ± 0.45 MJm<sup>−3</sup>K<sup>−1</sup>) and thermal diffusivity (<i>D =</i> 0.16 ± 0.02 mm<sup>2</sup>s<sup>−1</sup>). These values are comparable with reported values of internal organs, such as liver, kidney and muscle. In addition, a sensitivity study of the performance of the commercial sensor is conducted. To ensure correct thermal measurements, the sample under test should entirely cover the length of the sensor, and a minimum of 4 mm of material parallel to the sensor in all directions should be guaranteed. |
| first_indexed | 2024-03-10T17:28:06Z |
| format | Article |
| id | doaj.art-1d0c5dc7c1e24c49a5a93f81e20a1888 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T17:28:06Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-1d0c5dc7c1e24c49a5a93f81e20a18882023-11-20T10:06:10ZengMDPI AGSensors1424-82202020-08-012016454910.3390/s20164549Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia SystemsLaura Farina0Kemal Sumser1Gerard van Rhoon2Sergio Curto3Translational Medical Device Lab, National University of Ireland Galway, H91 TK33 Galway, IrelandErasmus MC Cancer Institute, Department of Radiation Oncology, University Medical Center Rotterdam, 3015 GD Rotterdam, The NetherlandsErasmus MC Cancer Institute, Department of Radiation Oncology, University Medical Center Rotterdam, 3015 GD Rotterdam, The NetherlandsErasmus MC Cancer Institute, Department of Radiation Oncology, University Medical Center Rotterdam, 3015 GD Rotterdam, The NetherlandsTissue mimicking phantoms are frequently used in hyperthermia applications for device and protocol optimization. Unfortunately, a commonly experienced limitation is that their precise thermal properties are not available. Therefore, in this study, the thermal properties of three currently used QA phantoms for deep hyperthermia are measured with an “off-shelf” commercial thermal property analyzer. We have measured averaged values of thermal conductivity (<i>k</i> = 0.59 ± 0.07 Wm<sup>−1</sup>K<sup>−1</sup>), volumetric heat capacity (<i>C =</i> 3.85 ± 0.45 MJm<sup>−3</sup>K<sup>−1</sup>) and thermal diffusivity (<i>D =</i> 0.16 ± 0.02 mm<sup>2</sup>s<sup>−1</sup>). These values are comparable with reported values of internal organs, such as liver, kidney and muscle. In addition, a sensitivity study of the performance of the commercial sensor is conducted. To ensure correct thermal measurements, the sample under test should entirely cover the length of the sensor, and a minimum of 4 mm of material parallel to the sensor in all directions should be guaranteed.https://www.mdpi.com/1424-8220/20/16/4549thermal propertieshyperthermiadeep hyperthermiaQA phantomsthermal properties analyzer devicethermal properties sensitivity evaluation |
| spellingShingle | Laura Farina Kemal Sumser Gerard van Rhoon Sergio Curto Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems Sensors thermal properties hyperthermia deep hyperthermia QA phantoms thermal properties analyzer device thermal properties sensitivity evaluation |
| title | Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems |
| title_full | Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems |
| title_fullStr | Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems |
| title_full_unstemmed | Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems |
| title_short | Thermal Characterization of Phantoms Used for Quality Assurance of Deep Hyperthermia Systems |
| title_sort | thermal characterization of phantoms used for quality assurance of deep hyperthermia systems |
| topic | thermal properties hyperthermia deep hyperthermia QA phantoms thermal properties analyzer device thermal properties sensitivity evaluation |
| url | https://www.mdpi.com/1424-8220/20/16/4549 |
| work_keys_str_mv | AT laurafarina thermalcharacterizationofphantomsusedforqualityassuranceofdeephyperthermiasystems AT kemalsumser thermalcharacterizationofphantomsusedforqualityassuranceofdeephyperthermiasystems AT gerardvanrhoon thermalcharacterizationofphantomsusedforqualityassuranceofdeephyperthermiasystems AT sergiocurto thermalcharacterizationofphantomsusedforqualityassuranceofdeephyperthermiasystems |