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논문명/저자명
고주파 온열치료기를 이용한 한천 팬텀의 온도분포 특성 / 정동경 인기도
발행사항
경산 : 영남대학교 대학원, 2017.2
청구기호
TD 610.28 -17-119
형태사항
xi, 166 p. ; 26 cm
자료실
전자자료
제어번호
KDMT1201728376
주기사항
학위논문(박사) -- 영남대학교 대학원, 의공학과 의공학전공, 2017.2. 지도교수: 김성규
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목차

1. 서론 15

1.1. 연구의 필요성 15

1.2. 연구의 목적 17

2. 이론적 배경 18

2.1. 암 18

2.1.1. 암 발생률 18

2.1.2. 암 사망률 20

2.1.3. 암 생존율 20

2.2. 암 치료 21

2.2.1. 수술요법 21

2.2.2. 항암요법 21

2.2.3. 방사선치료 22

2.2.4. 전리방사선과 물질과의 상호작용 22

2.2.5. 암 치료용 선형가속기 26

2.3. 온열치료 36

2.3.1. 온열치료 효과 36

2.3.2. 온열치료기 37

2.4. 한천 팬텀 42

2.4.1. 한천의 성분 42

2.4.2. 한천의 구조 43

2.5. 겔 보루스 43

2.6. 온도 측정 센스 45

2.6.1. Tempsens 온도측정기 45

2.6.2. GaAs 유리섬유 온도센스 47

2.7. 고주파전류 49

2.8. 유전율 50

2.9. 전자파 흡수율 51

3. 연구 방법 58

3.1. 한천 팬텀 틀 제작 58

3.2. 한천 팬텀 제작 59

3.2.1. 한천 팬텀 비율 59

3.2.2. 한천 팬텀 제작 61

3.3. 온도 측정 62

3.3.1. 한천 팬텀 비율에 따른 온도 측정 62

3.3.2. 한천 팬텀 제작 후 시간에 따른 온도 측정 63

3.3.3. 한천 팬텀 출력 전력별 온도 측정 64

3.3.4. 한천 팬텀 평탄도 측정 64

3.3.5. 겔 보루스 팬텀 온도 측정 66

4. 연구 결과 67

4.1. 실험에 대한 결과 67

4.1.1. 한천 팬텀 비율에 따른 온도 측정결과 67

4.1.2. 한천 팬텀 제작 후 시간에 따른 온도 측정결과 80

4.1.3. 한천 팬텀 출력 전력별 온도 측정결과 95

4.1.4. 한천 팬텀의 평탄도 측정결과 140

4.1.5. 겔 보루스 팬텀 온도 측정결과 152

4.1.6. 한천 팬텀과 겔 보루스 팬텀 온도 측정 비교 분석 158

5. 고찰 및 결론 170

요약 173

참고문헌 174

Abstract 179

Table 1. Trends in cancer incidence rates in both sexes between 2007 ~ 2013... 19

Table 2. Trends in cancer incidence rates in both sexes Korea, 2013 19

Table 3. Trends in the 5-year relative survival rates between 1993 ~ 2013 in... 21

Table 4. Task group 142 report: daily QA of medical accelerators 27

Table 5. Task group 142 report: monthly QA of medical accelerators 28

Table 6. Task group 142 report: annual QA of medical accelerators 30

Table 7. Hyperthermia TCS System along with the computer 39

Table 8. Display and the operating controls 40

Table 9. Specifications of Tempsens 46

Table 10. Specifications of fiber optic temperature sensor 48

Table 11. Dielectric properties of biological tissue equivalent solution 52

Table 12. The relative permittivity of biological tissues at 37 ℃ for various... 53

Table 13. The composition and properties of agar-based phantoms... 54

Table 14. Dielectric parameters of agar phantom. The values of relative... 55

Table 15. The ingredients and various characteristics of gelatin-based... 56

Table 16. Powder agar 4% mixing ratio 69

Table 17. Powder agar 5% mixing ratio 72

Table 18. Powder agar 6% mixing ratio 75

Table 19. Powder agar 7% mixing ratio 78

Table 20. Measurement of temperature after 3hours of agar phantom... 81

Table 21. Measurement of temperature after 22hours of agar phantom... 84

Table 22. Measurement of temperature after 49hours of agar phantom... 87

Table 23. Measurement of temperature after 72hours of agar phantom... 90

Table 24. Measurement of temperature after 96hours of agar phantom... 93

Table 25. The result of measuring the core body temperature from each... 96

Table 26. The result of measuring the core body temperature from each... 99

Table 27. The result of measuring the core body temperature from each... 102

Table 28. The result of measuring the core body temperature from each... 105

Table 29. The result of measuring the core body temperature from each... 108

Table 30. The result of measuring the core body temperature from each... 111

Table 31. The result of measuring the core body temperature from each... 114

Table 32. The result of measuring the core body temperature from each... 117

Table 33. The result of measuring the core body temperature from each... 120

Table 34. The result of measuring the core body temperature from each... 123

Table 35. The result of measuring the core body temperature from each... 126

Table 36. The result of measuring the core body temperature from each... 129

Table 37. The result of measuring the core body temperature from each... 132

Table 38. The result of measuring the core body temperature from each... 135

Table 39. The result of measuring the core body temperature from each... 138

Table 40. Temperature profile of transverse section along with 0㎝ depth 141

Table 41. Temperature profile of transverse section along with 5㎝ depth 144

Table 42. Temperature profile of transverse section along with 10㎝ depth 147

Table 43. Temperature profile of transverse section along with 15㎝ depth 150

Table 44. Depth of measurement temperature on gel bolus phantom for... 153

Table 45. Depth of measurement temperature on gel bolus phantom for... 156

Table 46. 5㎝ depth for 60minutes to heat 100 W of measurement agar... 159

Table 47. 5㎝ depth for 60minutes to heat 150 W of measurement agar... 161

Table 48. 10㎝ depth for 60minutes to heat 100 W of measurement agar... 163

Table 49. 10㎝ depth for 60minutes to heat 150 W of measurement agar... 165

Table 50. 15㎝ depth for 60minutes to heat 100 W of measurement agar... 167

Table 51. 15㎝ depth for 60minutes to heat 150 W of measurement agar... 169

Fig. 1. Numbers of cancer deaths during 2014 in Korea by sex 20

Fig. 2. Idealized radiation beam intensity profile of a typical accelerator... 35

Fig. 3. The cross beam profiles obtained for flatness also can be used for... 35

Fig. 4. Hyperthermia TCS System along with the computer. 38

Fig. 5. Display and the operating controls. 38

Fig. 6. Arm electrode and tile electrode. 41

Fig. 7. Choice of different electrode sizes. 42

Fig. 8. The structure of agar. 43

Fig. 9. Gel bolus. 44

Fig. 10. Multi-channel signal conditioner for applications using GaAs based... 45

Fig. 11. Fiber optic temperature sensor. 47

Fig. 12. The weight of the agar powder changes the permittivity 55

Fig. 13. Schematic image of agar phantom mold. 58

Fig. 14. Making of agar phantom mold. 59

Fig. 15. Agar powder of MSC Co. Ltd and sterile water. 60

Fig. 16. Yields of agar extracted 24hours after concentration. 60

Fig. 17. Making of agar phantom. 61

Fig. 18. Temperature measurement according to agar phantom ratio. 62

Fig. 19. Measuring of temperature on agar phantom. 63

Fig. 20. Illustration of simulation model on agar phantom. 64

Fig. 21. Illustration of simulation model on agar phantom of transverse... 65

Fig. 22. Illustration of simulation model on agar phantom in flatness. 65

Fig. 23. Illustration of simulation model on gel bolus phantom. 66

Fig. 24. Powder agar 4% mixing ratio. 68

Fig. 25. Powder agar 5% mixing ratio. 71

Fig. 26. Powder agar 6% mixing ratio. 74

Fig. 27. Broken agar phantom during temperature measurement. 77

Fig. 28. Powder agar 7% mixing ratio. 78

Fig. 29. Measurement of temperature after 3hours of agar phantom... 80

Fig. 30. Measurement of temperature after 22hours of agar phantom... 83

Fig. 31. Measurement of temperature after 49hours of agar phantom... 86

Fig. 32. Measurement of temperature after 72hours of agar phantom... 89

Fig. 33. Measurement of temperature after 96hours of agar phantom... 92

Fig. 34. Measurement of temperature after time of agar phantom production. 94

Fig. 35. The result of measuring the core body temperature from each... 95

Fig. 36. The result of measuring the core body temperature from each... 98

Fig. 37. The result of measuring the core body temperature from each... 101

Fig. 38. The result of measuring the core body temperature from each... 104

Fig. 39. The result of measuring the core body temperature from each... 107

Fig. 40. The result of measuring the core body temperature from each... 110

Fig. 41. The result of measuring the core body temperature from each... 113

Fig. 42. The result of measuring the core body temperature from each... 116

Fig. 43. The result of measuring the core body temperature from each... 119

Fig. 44. The result of measuring the core body temperature from each... 122

Fig. 45. The result of measuring the core body temperature from each... 125

Fig. 46. The result of measuring the core body temperature from each... 128

Fig. 47. The result of measuring the core body temperature from each... 131

Fig. 48. The result of measuring the core body temperature from each... 134

Fig. 49. The result of measuring the core body temperature from each... 137

Fig. 50. Temperature profile of transverse section along with 0㎝ depth. 140

Fig. 51. Temperature profile of transverse section along with 5㎝ depth. 143

Fig. 52. Temperature profile of transverse section along with 10㎝ depth. 146

Fig. 53. Temperature profile of transverse section along with 15㎝ depth. 149

Fig. 54. Depth of measurement temperature on gel bolus phantom for... 152

Fig. 55. Depth of measurement temperature on gel bolus phantom for... 155

Fig. 56. 5㎝ depth for 60minutes to heat 100 W of measurement agar... 158

Fig. 57. 5㎝ depth for 60minutes to heat 150 W of measurement agar... 160

Fig. 58. 10㎝ depth for 60minutes to heat 100 W of measurement agar... 162

Fig. 59. 10㎝ depth for 60minutes to heat 150 W of measurement agar... 164

Fig. 60. 15㎝ depth for 60minutes to heat 100 W of measurement agar... 166

Fig. 61. 15㎝ depth for 60minutes to heat 150 W of measurement agar... 168

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