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RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

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Page 1: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the
Page 2: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA

PET-CT e PET-RM com PSMA Ga68

Marcelo Livorsi da CunhaServiço de Medicina Nuclear e PET/CT

Hospital Israelita Albert [email protected]

Page 3: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

NÃO TENHO CONFLITO DE INTERESSES

Page 4: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

Adaptado de Practical Radiation Oncology (2018):8, 28-39

Page 5: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

INDICAÇÕES

• Re-estadiamento (recidivas bioquímicas)• Estadiamento inicial• Avaliação de lesão prostática primária• Avaliação de resposta terapêutica• Agente TERANÓSTICO – seleção de pacientes elegíveis para terapia

com radioisótopos (PSMA-Lu177 ou PSMA-Ac225)• Planejamento radioterápico

PET-CT e PET-RM com PSMA Ga68

Apresentador
Notas de apresentação
Morphologic imaging methods exhibit considerable limitations: sensitivity ranges between 25% and 54% for the detection of local recurrence by transrectal ultrasound or CT and is moderately improved using functional MR imaging techniques (2,4). The sensitivity for detection of lymph node metastases of CT or MR imaging is reported to be 30%–80% (5).
Page 6: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

RECIDIVAS BIOQUÍMICAS

Page 7: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68RECIDIVAS BIOQUÍMICAS

Fluociclovine

Practical Radiation Oncology (2018):8, 28-39

Page 8: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga6837 artigos; 4790 pacientes

Quanto a recidiva bioquímica

Taxas de detecção (em função do PSA sérico):

• até 0,19 ng/mL= 33%

• 0,20-0,49 ng/mL= 45%

• 0,50-0,99 ng/mL=59%

• 1,0 - 1,99 ng/ml= 75%

• > 2,0ng/mL= 95%

Page 9: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

AdenoCA Próstata Gleason 7 (3+4)PR há 18 meses

PSA atual=0,69 ng/mL

PET/RM

PET/RMPET/CT

PET/CT

PET-CT e PET-RM com PSMA Ga68

Page 10: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

62anos,PR em 2013 Ca Próstata G7 PSAi=5,7PSA pós-op =0,02PSA nov/15=0,12

mar/16=0,15 out/16=0,32 RDT- IMRTdez/16=0,45mar/17=0,56

Page 11: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

ESTADIAMENTO

Page 12: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68Quanto a estadiamento primário

Análise por lesão:S=75% E=99%

Análise por paciente:S=77% E=97%

Page 13: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

61 anos,PSA=4,47 ng/mL

RM Próstata- PIRADS 5Bx Transretal

AdenoCa PróstataG8 (4+4)

Page 14: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

61 anos,PSA=4,47 ng/mL

Bx TransretalAdenoCa Próstata

G8 (4+4)

Page 15: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

AVALIAÇÃO DA LESÃO PRIMÁRIA

Page 16: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Eiber M et al. Eur Urol. 2016 Nov;70(5):829-836

PET-CT e PET-RM com PSMA Ga68

AVALIAÇÃO DE LESÂO PRIMÁRIA

Apresentador
Notas de apresentação
However, roughly 80% of metastatic LN in PCa are smaller than 8 mm. Ref: Heesakkers, R. A., Hovels, A. M., Jager, G. J. et al.: MRI with a lymph8 node-specific contrast agent as an alternative to CT scan and lymph9 node dissection in patients with prostate cancer: a prospective multicohort study. Lancet Oncol, 9: 10 850, 2008
Page 17: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

AVALIAÇÃO DE LESÂO PRIMÁRIA

Apresentador
Notas de apresentação
However, roughly 80% of metastatic LN in PCa are smaller than 8 mm. Ref: Heesakkers, R. A., Hovels, A. M., Jager, G. J. et al.: MRI with a lymph8 node-specific contrast agent as an alternative to CT scan and lymph9 node dissection in patients with prostate cancer: a prospective multicohort study. Lancet Oncol, 9: 10 850, 2008
Page 18: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Diagnóstico / EstadiamentoPSMA-68Ga PET/RM

Biópsia: Adenocarcinoma acinar Gleason 8 (4+4)

T2W DWI DCE

T2a ???

Apresentador
Notas de apresentação
Primary staging in high-risk disease before surgical procedures or planning external beam radiation In patients with high-risk disease (Gleason score >7, PSA >20 ng/mL, clinical stage T2c – 3a) the likelihood of lymph node and bone metastases is increased. Several studies demonstrate the superiority of 68Ga-PSMA PET/CT as compared to CT, magnetic resonance imaging (MRI) or bone scan for detection of metastases for initial staging at primary diagnosis. The detection of radiologically occult lymph node metastases can significantly influence patient management, although the impact on overall survival of improved sensitivity by 68Ga-PSMA PET/CT remains unanswered. A contrastenhanced 68Ga-PSMA PET/CT can replace abdomino-pelvic CT for the detection of lymph node metastases. In addition, preliminary data show that 68Ga-PSMA PET/CT is also more accurate for detection of bone metastases [25]. Nevertheless, for local tumour delineation (if requested by the urological surgeon), pelvic MRI cannot be replaced. It is still under investigation and discussion whether additional functional imaging with bone0seeking agents (e.g. bone scintigraphy, 18FNaF PET/CT) has relevant additional value after performance of 68Ga-PSMA PET/CT, e.g. in patients with PSMA-negative tumours or densely sclerotic bone lesions.
Page 19: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Diagnóstico / EstadiamentoBiópsia: Adenocarcinoma acinar Gleason 8 (4+4)

PSMA-68Ga

3D-MIPT3b: Invasão de vesícula seminal

Page 20: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Diagnóstico / EstadiamentoBiópsia: Adenocarcinoma acinar Gleason 8 (4+4)

PSMA-68Ga

3D-MIP T3b: Invasão de vesícula seminal

N1: Linfonodo ilíaco interno M0

Page 21: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

TERANÓSTICO

Page 22: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

AGENTE TERANÓSTICO – SELEÇÃO DE PACIENTES ELEGÍVEIS PARA TERAPIA COM RADIOISÓTOPOS (PSMA-LU177)

PET-CT e PET-RM com PSMA Ga68

Page 23: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET/CT com PSMA-68Ga para avaliação de respostaPRÉ-TT0

Clemens Kratochwil et al. J Nucl Med 2016;57:1941-1944

PET-CT e PET-RM com PSMA Ga68

Apresentador
Notas de apresentação
Partículas alfa= baixa penetração e alto LET (transferência de energia)
Page 24: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Mudança de conduta em 53,7%

PET-CT e PET-RM com PSMA Ga68

Apresentador
Notas de apresentação
Morphologic imaging methods exhibit considerable limitations: sensitivity ranges between 25% and 54% for the detection of local recurrence by transrectal ultrasound or CT and is moderately improved using functional MR imaging techniques (2,4). The sensitivity for detection of lymph node metastases of CT or MR imaging is reported to be 30%–80% (5).
Page 25: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Roach PJ et al. J Nuc Med 2018 Jan;59(1):82-88

The impact of 68Ga‐PSMA PET/CT on management intent in prostate cancer: results ofan Australian prospective multicenter study.

431 patients (75% com recidiva bioquímica e 25% estadiamento de CA Próstata riscointermediário e alto)

Mudança no planejamento terapêutico: 51% no geral;

• Maior impacto: recidiva bioquímica, com 62% de alterações na proposta de tratamento• No estadiamento: modificações em 21% dos pacientes• Identificação de doença insuspeita: no leito prostático 27%;

linfonodos locorregionais 39% e doença à distância em 16% dos pacientes

PET-CT e PET-RM com PSMA Ga68

Apresentador
Notas de apresentação
Morphologic imaging methods exhibit considerable limitations: sensitivity ranges between 25% and 54% for the detection of local recurrence by transrectal ultrasound or CT and is moderately improved using functional MR imaging techniques (2,4). The sensitivity for detection of lymph node metastases of CT or MR imaging is reported to be 30%–80% (5).
Page 26: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

Fifteen studies (1163 patients) were included. The pooled proportion of management changes was 54% (95% confidenceinterval 47–60%). At metaregression analyses, PET positivity (%) was a significant factor of heterogeneity (p=0.0486).For patients with biochemical failure,the proportion of radiotherapy(from 56% to 61%), surgery (from 1% to 7%), focal therapy (from 1% to 2%), and multimodal treatment (from 2% to 6%) increased, whereas that of systemic treatment (from 26% to 12%) and no treatment (from 14% to 11%) decreased with 68Ga-PSMA PET.

PET-CT e PET-RM com PSMA Ga68

Apresentador
Notas de apresentação
The proportion of change in individual studies ranged from 29% to 77%. For allthe15studiescombined,thepooledproportionofchange was54%(95%confidenceinterval[CI]:47–60%).
Page 27: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

PET-CT e PET-RM com PSMA Ga68

CONCLUSÕES ÓTIMA ACURÁCIA NA IDENTIFICÃO DOS FOCOS DE RECIDIVA (PÓS PR OU RDT) – INCLUSÃONAS DIRETRIZES EUROPÉIAS E AUSTRALIANAS

ESTADIAMENTO PRIMÁRIO (PACIENTES DE ALTO RISCO) : EVIDÊNCIAS PRELIMINARES DEBENEFÍCIO, COMO EXAME ÚNICO

LESÃO PRIMÁRIA : POTENCIAL GANHO DE SENSIBILIDADE NA IDENTIFICAÇÃO DE LESÕESCLINICAMENTE SIGNIFICANTES

TERAPIAS COM PSMA-Lu177 ou PSMA-Ac225: PET PSMA INDISPENSÁVEL PRÉ TRATAMENTOPARA AVALIAÇÃO DAS LESÕES

ALTO IMPACTO, COM MUDANÇA DE PROPOSTA DE TRATAMENTO EM APROXIMADAMENTEMETADE DOS CASOS

Page 28: RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA Marcelo Cunha... · The detection of radiologically occult lymph node對 metastases can significantly influence patient management, although the

RADIOLOGIA - IMAGEM EM URO-ONCOLOGIA

PET-CT e PET-RM com PSMA Ga68

Marcelo Livorsi da CunhaServiço de Medicina Nuclear e PET/CT

Hospital Israelita Albert [email protected]

OBRIGADO!