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Survival Analysis
문서의 제목
Glioma Treatment
나눔고딕 B, 42pt




정한빈 이계홍
이은재 최윤형
                    . 설치하기
1 “What is Glioma?”

2 Glioma data analysis

3 Conclusion
“What is
  Glioma?”
01   Glioma(싞경교종)


     1   Glioma의 정의

         • 뇌를 구성하는 조직




         • Glioma




         • 종양의 구분




                        4
01   Glioma(싞경교종)




                    5
01   Glioma(싞경교종)


     2   Glioma의 특징

         • 질병의 양상
                      침투

           수술로 완전 제거하는 것이 힘들다 (방사선 치료, 항암화학 치료 병행)



         • 발병 현황

                           10만명 당 약 2명이 발생




                                                     6
01   Glioma(싞경교종)


     3   Glioma의 임상적 특징

         • 일반 증상




           두통

            신경교종 환자의 약 1/3이 초기 증상

         • 국소 증상




                                    7
01   Glioma(싞경교종)


     4   Glioma의 진단




                      8
01   Glioma(싞경교종)
                       CT                   MRI




        하얗게 나오는 두개골          검게 나오는 두개골

       왼쪽 윗부분의 검정 부분         왼쪽 윗부분의 흰 부분
          (종양 덩어리)             (종양 덩어리)

               MRI 사진에서 더 크게 발견

                                                  9
01   Glioma(싞경교종)


     5   Glioma의 분류 (WHO 기준)



          • Low-grade Glioma




          • High-grade Glioma
            Grade III / GBM( Grade IV) (치료 후 생존기간 50주 이하)




                                                            10
01                Glioma(싞경교종)




     low-grade glioma /GBM       GBM patient MRI scanning




                                                            11
01   Glioma(싞경교종)


     6 Glioma의 치료
       Grade II Glioma부터는 주변 정상적인 조직을 침범 (수술로만 완치 불가)




                        수술적
                         치료




                        RIT
                      (방사선치료)
                                   Radioimmunotherapy


                                                        12
01   Glioma(싞경교종)




              방사선 치료 전후 비교
                             13
Glioma data
    Analysis
02   Glioma data Analysis


     1. >glioma




                            15
02   Glioma data Analysis


     2. >?glioma
       • 설명
         Yttrium-90-biotin을 투약하는 방식의 방사성 면역치료를 받는
         악성 glioma 환자에 대핚 랜덤화되지 않은 파일럿 연구 (2002)

       • 데이터 포맷
         다음 7가지 변수에 대핚 37명의 환자의 관찰값

            ① no,         환자번호
            ② age         환자 나이
            ③ sex         환자 성별 (M-남성 / F-여성)
            ④ histology   환자 상태 따른 glioma 등급
                           (GBM-grade IV / Grade 3-grade III)
            ⑤ time        실험시작-종결 개월수
            ⑥ event       데이터 걸러내는 도구
                           (False-완치,생존 / True-사망)
            ⑦ group       RIT(방사능면역치료) / Control(대조굮)




                                                                16
02   Glioma data Analysis


     3. 데이터 분석


      • Survival fit plot 그리기




      • Logrank test 실행
        약물과 치료간의 싞뢰성, 상관관계 분석




                                17
Glioma data Analysis
02
     > layout(matrix(1:2, ncol = 2))
     > g3 <- subset(glioma, histology == "Grade3")
     > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1))
     > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1))
     > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 2.1711, p-value = 0.02877
     alternative hypothesis: two.sided

     > gbm <- subset(glioma, histology == "GBM")
     > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1))
     > legend("topright", legend=c("Control","Treated"),lty=c(2,1))
     > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 3.2215, p-value = 0.0001588
     alternative hypothesis: two.sided

     > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B = 10000))

         Approximative Logrank Test

     data: Surv(time, event) by
           group (Control, RIT)
           stratified by histology
     Z = 3.6704, p-value < 2.2e-16
     alternative hypothesis: two.sided



                                                                                                               18
Glioma data Analysis
02
     > g3 <- subset(glioma, histology == "Grade3")

     > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1))

     > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1))

     > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 2.1711, p-value = 0.02877
     alternative hypothesis: two.sided




                                                                                → g3

        g3 data → RIT 실행여부(group)에 따른 실험기간(time)과 생존여부(event)에
                  관핚 survival fit plot 그림 (legend 설정)

        Survival test (logrank test)

           p-value = 0.02877 < 0.05
                    (통계적으로 유의→RIT가 Glioma grade 3 치료에 효과가 있다 )



                                                                                                     19
Glioma data Analysis
02
     > gbm <- subset(glioma, histology == "GBM")

     > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1))

     > legend("topright", legend=c("Control","Treated"),lty=c(2,1))

     > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact")

         Exact Logrank Test

     data: Surv(time, event) by group (Control, RIT)
     Z = 3.2215, p-value = 0.0001588
     alternative hypothesis: two.sided




                                                                        → gbm

        gbm data → RIT 실행여부(group)에 따른 실험기간(time)과 생존여부(event)에
                 관핚 survival fit plot 그림 (legend 설정)

        Survival test (logrank test)

           p-value = 0.0001588 < 0.05
                    (통계적으로 유의→RIT가 Glioma GBM 치료에 효과가 있다 )



                                                                                                     20
Glioma data Analysis
02
     > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B =
     10000))

         Approximative Logrank Test

     data: Surv(time, event) by
           group (Control, RIT)
           stratified by histology
     Z = 3.6704, p-value < 2.2e-16
     alternative hypothesis: two.sided




           → 통계적 TEST를 실행하기엔 너무 적은 표본수

        10000번 복원추출 하여 logrank test 실행
        p-value < 2.2e-16 < 0.05
                   (통계적으로 유의→RIT가 Glioma 치료에 효과가 있다 )




                                                                                                       21
02   Glioma data Analysis

     4. 그래프 분석




                              → 사망자 발생시 감소 (계단모양)
                              → 치유된 환자: 수직으로 그은 마디

                            (X축) 실험 시작시점부터의 경과 개월수

                            (왼쪽 그래프)
                              Grade III 환자들의 survival plot
                              실험굮 (1.0→0.8) / 대조굮(1.0 →약 0.3)

                            (오른쪽 그래프)
                              Grade IV 환자들의 survival plot
                              종료시점 생존률이 Grade III보다 낮음
                              실험굮 (1.0 →60개월 0.4)
                              대조군(1.0 →30개월 이내 모두 사망)




                                                                22
Conclusion
03   Conclusion




       Glioma       •정의 / 특징 / 분류
                    •짂단 / 치료
          ?

       Glioma Data •Survival fit plot
        Analysis •Logrank test


                                        24
03   Conclusion




                  25
03   Conclusion




                  26
03   Conclusion




                  27
03   Conclusion



                   수술적
                    치료




       뇌종양은 불치병?
                    RIT
                  (방사선치료)




                            28
감사합니다

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Survival Analysis: Glioma Treatment

  • 1. Survival Analysis 문서의 제목 Glioma Treatment 나눔고딕 B, 42pt 정한빈 이계홍 이은재 최윤형 . 설치하기
  • 2. 1 “What is Glioma?” 2 Glioma data analysis 3 Conclusion
  • 3. “What is Glioma?”
  • 4. 01 Glioma(싞경교종) 1 Glioma의 정의 • 뇌를 구성하는 조직 • Glioma • 종양의 구분 4
  • 5. 01 Glioma(싞경교종) 5
  • 6. 01 Glioma(싞경교종) 2 Glioma의 특징 • 질병의 양상 침투 수술로 완전 제거하는 것이 힘들다 (방사선 치료, 항암화학 치료 병행) • 발병 현황 10만명 당 약 2명이 발생 6
  • 7. 01 Glioma(싞경교종) 3 Glioma의 임상적 특징 • 일반 증상 두통 신경교종 환자의 약 1/3이 초기 증상 • 국소 증상 7
  • 8. 01 Glioma(싞경교종) 4 Glioma의 진단 8
  • 9. 01 Glioma(싞경교종) CT MRI 하얗게 나오는 두개골 검게 나오는 두개골 왼쪽 윗부분의 검정 부분 왼쪽 윗부분의 흰 부분 (종양 덩어리) (종양 덩어리) MRI 사진에서 더 크게 발견 9
  • 10. 01 Glioma(싞경교종) 5 Glioma의 분류 (WHO 기준) • Low-grade Glioma • High-grade Glioma Grade III / GBM( Grade IV) (치료 후 생존기간 50주 이하) 10
  • 11. 01 Glioma(싞경교종) low-grade glioma /GBM GBM patient MRI scanning 11
  • 12. 01 Glioma(싞경교종) 6 Glioma의 치료 Grade II Glioma부터는 주변 정상적인 조직을 침범 (수술로만 완치 불가) 수술적 치료 RIT (방사선치료) Radioimmunotherapy 12
  • 13. 01 Glioma(싞경교종) 방사선 치료 전후 비교 13
  • 14. Glioma data Analysis
  • 15. 02 Glioma data Analysis 1. >glioma 15
  • 16. 02 Glioma data Analysis 2. >?glioma • 설명 Yttrium-90-biotin을 투약하는 방식의 방사성 면역치료를 받는 악성 glioma 환자에 대핚 랜덤화되지 않은 파일럿 연구 (2002) • 데이터 포맷 다음 7가지 변수에 대핚 37명의 환자의 관찰값 ① no, 환자번호 ② age 환자 나이 ③ sex 환자 성별 (M-남성 / F-여성) ④ histology 환자 상태 따른 glioma 등급 (GBM-grade IV / Grade 3-grade III) ⑤ time 실험시작-종결 개월수 ⑥ event 데이터 걸러내는 도구 (False-완치,생존 / True-사망) ⑦ group RIT(방사능면역치료) / Control(대조굮) 16
  • 17. 02 Glioma data Analysis 3. 데이터 분석 • Survival fit plot 그리기 • Logrank test 실행 약물과 치료간의 싞뢰성, 상관관계 분석 17
  • 18. Glioma data Analysis 02 > layout(matrix(1:2, ncol = 2)) > g3 <- subset(glioma, histology == "Grade3") > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1)) > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 2.1711, p-value = 0.02877 alternative hypothesis: two.sided > gbm <- subset(glioma, histology == "GBM") > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1)) > legend("topright", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 3.2215, p-value = 0.0001588 alternative hypothesis: two.sided > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B = 10000)) Approximative Logrank Test data: Surv(time, event) by group (Control, RIT) stratified by histology Z = 3.6704, p-value < 2.2e-16 alternative hypothesis: two.sided 18
  • 19. Glioma data Analysis 02 > g3 <- subset(glioma, histology == "Grade3") > plot(survfit(Surv(time, event) ~ group, data = g3),main = "Grade III Glioma", lty = c(2,1)) > legend("bottomleft", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = g3,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 2.1711, p-value = 0.02877 alternative hypothesis: two.sided → g3 g3 data → RIT 실행여부(group)에 따른 실험기간(time)과 생존여부(event)에 관핚 survival fit plot 그림 (legend 설정) Survival test (logrank test) p-value = 0.02877 < 0.05 (통계적으로 유의→RIT가 Glioma grade 3 치료에 효과가 있다 ) 19
  • 20. Glioma data Analysis 02 > gbm <- subset(glioma, histology == "GBM") > plot(survfit(Surv(time, event) ~ group, data = gbm),main = "Grade IV Glioma", lty = c(2,1)) > legend("topright", legend=c("Control","Treated"),lty=c(2,1)) > surv_test(Surv(time, event) ~ group, data = gbm,distribution = "exact") Exact Logrank Test data: Surv(time, event) by group (Control, RIT) Z = 3.2215, p-value = 0.0001588 alternative hypothesis: two.sided → gbm gbm data → RIT 실행여부(group)에 따른 실험기간(time)과 생존여부(event)에 관핚 survival fit plot 그림 (legend 설정) Survival test (logrank test) p-value = 0.0001588 < 0.05 (통계적으로 유의→RIT가 Glioma GBM 치료에 효과가 있다 ) 20
  • 21. Glioma data Analysis 02 > surv_test(Surv(time, event) ~ group | histology, data = glioma,distribution = approximate(B = 10000)) Approximative Logrank Test data: Surv(time, event) by group (Control, RIT) stratified by histology Z = 3.6704, p-value < 2.2e-16 alternative hypothesis: two.sided → 통계적 TEST를 실행하기엔 너무 적은 표본수 10000번 복원추출 하여 logrank test 실행 p-value < 2.2e-16 < 0.05 (통계적으로 유의→RIT가 Glioma 치료에 효과가 있다 ) 21
  • 22. 02 Glioma data Analysis 4. 그래프 분석 → 사망자 발생시 감소 (계단모양) → 치유된 환자: 수직으로 그은 마디 (X축) 실험 시작시점부터의 경과 개월수 (왼쪽 그래프) Grade III 환자들의 survival plot 실험굮 (1.0→0.8) / 대조굮(1.0 →약 0.3) (오른쪽 그래프) Grade IV 환자들의 survival plot 종료시점 생존률이 Grade III보다 낮음 실험굮 (1.0 →60개월 0.4) 대조군(1.0 →30개월 이내 모두 사망) 22
  • 24. 03 Conclusion Glioma •정의 / 특징 / 분류 •짂단 / 치료 ? Glioma Data •Survival fit plot Analysis •Logrank test 24
  • 25. 03 Conclusion 25
  • 26. 03 Conclusion 26
  • 27. 03 Conclusion 27
  • 28. 03 Conclusion 수술적 치료 뇌종양은 불치병? RIT (방사선치료) 28