KR102490645B1 - 흡수에너지 기반 전기장 암치료 계획 시스템 및 방법 - Google Patents
흡수에너지 기반 전기장 암치료 계획 시스템 및 방법 Download PDFInfo
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Abstract
Description
도 2는 전기장 인가 시 전력손실밀도와 전기장 인가 시간에 따른 세포증식 억제효과를 도시하는 도면이다.
도 3은 전기장 인가 시 서로 다른 전력손실밀도와 서로 다른 전기장 인가 시간을 적용한 경우 세포증식 억제효과를 도시하는 도면이다.
도 4는 전기장 치료 시 환자의 의료영상을 이용하여 체내 흡수에너지밀도 또는 흡수비에너지 분포를 계산하는 과정을 도시하는 도면이다.
도 5는 인체 모형 팬텀에서 정상 조직의 질량밀도(mass density)를 1 g/cm3로 가정하고 종양(tumor)의 질량밀도가 1.2 g/cm3인 경우와 0.6 g/cm3인 경우에 대해 200kHz의 전기장을 인가한 경우의 흡수에너지밀도와 흡수비에너지의 분포를 도시하는 도면이다.
도 6은 전기장 치료계획 수립 시 흡수에너지 기반 선량 단위를 이용한 체내 선량 최적화 과정을 도시하는 도면이다.
도 7은 인체 모형 팬텀에 가상의 종양조직과 정상세포로 이루어진 중요장기(organ at risk)를 가정하고 전기장 치료 시 흡수에너지 기반 선량 단위를 이용하여 진행된 선량 최적화 결과를 도시하는 도면이다.
도 8은 전기장 인가 시 세포증식 억제효과의 전기장 주파수 의존도를 도시하는 도면이다.
도 9는 본 발명의 일 실시예에 따른 전기장 암치료 계획 방법의 흐름도이다.
도 10은 본 발명의 다른 실시예에 따른 전기장 암치료 계획 시스템의 구성도이다.
1100: 영상 분류부
1200: 물성 정보 설정부
1300: 처방 정보 결정부
1400: 선량 산출부
1500: 선량 최적화부
Claims (10)
- 장기와 종양이 포함된 환자의 의료영상에서 장기와 종양을 분류하는 영상 분류부;
상기 영상 분류부에 의해 분류된 각 영역의 물성 정보를 설정하는 물성 정보 설정부;
입력된 종양 종류 및 종양 상태 정보를 고려하여 처방 방법을 설정하고, 처방선량, 치료횟수, 치료시간 및 치료 주파수를 포함하는 처방 정보를 결정하는 처방 정보 결정부;
상기 영상 분류부에 의해 분류된 각 영역의 위치를 고려하여 전기장 암치료를 위해 사용되는 전극의 개수, 전극의 위치 및 전극별 전기장 세기를 초기 설정하고 초기 설정을 기초로 체내 선량 분포를 계산하는 선량 산출부; 및
상기 전극의 개수, 전극의 위치 및 전극별 전기장 세기 중 적어도 하나를 변경하여 상기 처방선량이 종양에 최대한 부여되고 주변의 정상조직에는 최소한으로 부여되도록 선량을 최적화하는 선량 최적화부를 포함하며,
상기 처방 방법은 흡수에너지밀도 기반 방식 및 흡수비에너지 기반 방식 중 어느 하나이며, 설정된 처방 방법에 따라 상기 처방선량의 단위가 흡수에너지밀도 및 흡수비에너지 중 어느 하나로 결정되는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 1 항에 있어서,
상기 물성 정보는 인체 내 각 조직의 전기전도도와 질량밀도를 포함하는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 2 항에 있어서,
상기 전기전도도는 자기공명영상(MRI) 또는 기 구축된 인체 조직별 전기전도도 DB를 기반으로 설정되는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 2 항에 있어서,
상기 질량밀도는 컴퓨터단층영상(CT) 또는 기 구축된 인체 조직별 질량밀도 DB를 기반으로 설정되는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 삭제
- 제 1 항에 있어서,
상기 흡수에너지밀도는 하기의 수학식
흡수에너지밀도 = 전력손실밀도 × 전기장 인가 시간
에 따라 계산하는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 1 항에 있어서,
상기 흡수비에너지는 하기의 수학식
흡수비에너지 = (전력손실밀도 × 전기장 인가 시간) ÷ (질량밀도)
에 따라 계산하는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 1 항에 있어서,
상기 처방 정보 결정부는 기 설정된 기준 주파수에 대해 조직에 전달된 흡수에너지에 의해 상기 처방선량을 결정하는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 8 항에 있어서,
상기 처방 정보 결정부는 상기 치료 주파수가 상기 기준 주파수와 상이할 경우 주파수에 따른 생물학적 효과를 반영하기 위한 주파수 가중치를 적용하여 상기 처방선량을 수정하는 것을 특징으로 하는 흡수에너지 기반 전기장 암치료 계획 시스템.
- 제 1항 내지 제 4항, 제 6항 내지 제 9항 중 어느 한 항에 따른 전기장 암치료 계획 시스템에 의한 흡수에너지 기반 전기장 암치료 계획 방법으로,
상기 영상분류부에 의하여 환자의 의료영상에서 종양 및 장기를 포함하는 관심 영역이 분할되는 단계;
상기 처방 정보 결정부에 의하여 흡수에너지밀도 기반 또는 흡수비에너지 기반 중 어느 하나의 방식으로 처방 방법이 설정되는 단계;
상기 처방 정보 결정부에 의하여 상기 설정된 처방 방법에 따라 처방선량, 치료횟수, 치료시간 및 치료 주파수를 포함하는 처방 정보가 결정되는 단계;
상기 선량 산출부에 의하여 종양 및 장기를 고려하여 초기 설정한 전극의 개수, 전극의 위치 및 전극별 전기장 세기를 기초로 체내 선량 분포이 계산되는 단계; 및
상기 선량 최적화부에 의하여 상기 계산된 체내 선량 분포를 기반으로 치료계획이 평가 및 최적화되는 단계를 포함하는 흡수에너지 기반 전기장 암치료 계획 방법.
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KR1020200088365A KR102490645B1 (ko) | 2020-07-16 | 2020-07-16 | 흡수에너지 기반 전기장 암치료 계획 시스템 및 방법 |
CN202080004054.9A CN114269274B (zh) | 2020-07-16 | 2020-07-20 | 基于吸收能量的电场癌治疗计划系统及方法 |
US17/259,492 US12011589B2 (en) | 2020-07-16 | 2020-07-20 | System and method for planning electric field cancer treatment based on absorbed energy |
PCT/KR2020/009527 WO2022014761A1 (ko) | 2020-07-16 | 2020-07-20 | 흡수에너지 기반 전기장 암치료 계획 시스템 및 방법 |
JP2021502968A JP7459047B2 (ja) | 2020-07-16 | 2020-07-20 | システム及び方法 |
EP20829173.2A EP3967365A4 (en) | 2020-07-16 | 2020-07-20 | ABSORPTION ENERGY ELECTRIC FIELD CANCER TREATMENT PLANNING SYSTEM AND METHOD |
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WO2022167939A1 (en) * | 2021-02-03 | 2022-08-11 | Novocure Gmbh | Varying parameters of tumor treating fields (ttfields) treatment to overcome treatment resistance |
EP4338789B1 (en) * | 2022-09-16 | 2025-03-12 | Fieldcure Co., Ltd. | System for determining and evaluating tumor treatment plan using dose based on impulse |
KR20240038558A (ko) | 2022-09-16 | 2024-03-25 | 주식회사 필드큐어 | 충격량 기반 처방을 이용한 암치료 계획 결정 시스템 및 암치료 계획 평가 시스템 |
WO2024090939A1 (ko) * | 2022-10-25 | 2024-05-02 | 주식회사 필드큐어 | 전기장 전달 시스템 및 방법 |
CN116258024B (zh) * | 2023-05-16 | 2023-08-29 | 赛福凯尔(绍兴)医疗科技有限公司 | 目标区域的电场可视化方法、装置和计算机设备 |
GB2631521A (en) * | 2023-07-05 | 2025-01-08 | Qv Bioelectronics Ltd | Electric field therapy |
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CN114269274B (zh) | 2024-06-28 |
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