- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT00908609
Optical Tomography With Ultrasound Guidance
3-D Simultaneous Ultrasound and NIR Imaging for Breast Cancer Detection
The investigators propose to validate the utility of their novel hybrid imaging technique for accurate diagnosis of breast lesions, and for assessing chemotherapy response of cancer treatment and predicting treatment efficacy. The investigators' unique hybrid technique is implemented by simultaneously deploying near infrared (NIR) optical sensors and a commercial ultrasound (US) transducer mounted on a hand-held probe, and utilizing co-registered lesion structure information provided by ultrasound to improve the optical tomography.
As a result, the optical tomography assisted with US has overcome problems associated with intense light scattering and has provided reliable tumor angiogenesis distributions. Initial results with a small group of patients who underwent biopsy have shown that early stage invasive cancers present two-fold greater total hemoglobin concentration on average than fibroadenomas and other benign lesions. Initial results of advanced cancers have shown that the angiogenesis distribution is highly distorted and heterogeneous, and the distorted distributions correlate with histological microvessel density counts and can be used to assess chemotherapy response.
The objective of this study is to validate the investigators' initial results that NIR light guided by ultrasound can improve breast cancer diagnosis and monitor chemotherapy response.
Visão geral do estudo
Status
Condições
Descrição detalhada
Specific objectives of the study are:
Objective 1: Validate the sensitivity, specificity, positive predictive value and negative predictive value of optical tomography/US for distinguishing benign and early stage malignant breast tumors. Approximately 300 patients who will undergo ultrasound-guided biopsy are being recruited to this study from the University of Connecticut Health Center and Hartford Hospital. The total hemoglobin concentration and blood oxygen saturation will be the measured indices and the biopsy results will be used as the 'gold' standard.
Objective 2: Perform pilot studies of optical tomography/US to assess chemotherapy response and evaluate treatment efficacy. Patients diagnosed with locally advanced breast cancers (size greater than 3 cm) who will undergo chemotherapy will be enrolled to this study. Approximately, 20 to 30 patients are being recruited to the study from the University of Connecticut Health Center and Hartford Hospital.
Tipo de estudo
Inscrição (Real)
Contactos e Locais
Locais de estudo
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Connecticut
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Farmington, Connecticut, Estados Unidos, 06030
- University of Connecticut Health Center
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Hartford, Connecticut, Estados Unidos, 06102
- Hartford Hospital
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Método de amostragem
População do estudo
- Women undergo ultrasound guided biopsy
- Breast cancer patients undergo neoadjuvant thermotherapy treatment
Descrição
Inclusion Criteria:
- Women undergoing ultrasound guided biopsy or breast cancer patients undergoing neoadjuvant thermotherapy treatment
Exclusion Criteria:
- Women under 18 years old.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Modelos de observação: Coorte
- Perspectivas de Tempo: Prospectivo
Coortes e Intervenções
Grupo / Coorte |
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1
Patients who undergo routine ultrasound guided biopsy will be studied by optical imaging technique.
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2
Patients who have advanced breast cancers and are under neoadjuvant chemotherapy treatment will be studied by optical technique.
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
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The deoxygenated/oxygenated hemoglobin and total hemoglobin concentration are the measured imaging parameters and biopsy results will be used as the 'gold' standard to compare imaging findings.
Prazo: 4 more years
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4 more years
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Quing Zhu, Ph.D, University of Connecticut
Publicações e links úteis
Publicações Gerais
- Zhu Q, Hegde PU, Ricci A Jr, Kane M, Cronin EB, Ardeshirpour Y, Xu C, Aguirre A, Kurtzman SH, Deckers PJ, Tannenbaum SH. Early-stage invasive breast cancers: potential role of optical tomography with US localization in assisting diagnosis. Radiology. 2010 Aug;256(2):367-78. doi: 10.1148/radiol.10091237. Epub 2010 Jun 22.
- Xu Y, Zhu Q. Imaging heterogeneous absorption distribution of advanced breast cancer by optical tomography. J Biomed Opt. 2010 Nov-Dec;15(6):066007. doi: 10.1117/1.3505015.
- Xu C, Zhu Q. Light shadowing effect of large breast lesions imaged by optical tomography in reflection geometry. J Biomed Opt. 2010 May-Jun;15(3):036003. doi: 10.1117/1.3431086.
- Ardeshirpour Y, Huang M, Zhu Q. Effect of the chest wall on breast lesion reconstruction. J Biomed Opt. 2009 Jul-Aug;14(4):044005. doi: 10.1117/1.3160548.
- Xu C, Yuan B, Zhu Q. Optimal probe design for breast imaging using near-infrared diffused light. J Biomed Opt. 2008 Jul-Aug;13(4):044002. doi: 10.1117/1.2966703.
- Zhu Q, Tannenbaum S, Hegde P, Kane M, Xu C, Kurtzman SH. Noninvasive monitoring of breast cancer during neoadjuvant chemotherapy using optical tomography with ultrasound localization. Neoplasia. 2008 Oct;10(10):1028-40. doi: 10.1593/neo.08602.
- Zhu Q, Wang L, Tannenbaum S, Ricci A Jr, DeFusco P, Hegde P. Pathologic response prediction to neoadjuvant chemotherapy utilizing pretreatment near-infrared imaging parameters and tumor pathologic criteria. Breast Cancer Res. 2014 Oct 28;16(5):456. doi: 10.1186/s13058-014-0456-0.
- Tavakoli B, Zhu Q. Two-step reconstruction method using global optimization and conjugate gradient for ultrasound-guided diffuse optical tomography. J Biomed Opt. 2013 Jan;18(1):16006. doi: 10.1117/1.JBO.18.1.016006.
- Zhu Q, DeFusco PA, Ricci A Jr, Cronin EB, Hegde PU, Kane M, Tavakoli B, Xu Y, Hart J, Tannenbaum SH. Breast cancer: assessing response to neoadjuvant chemotherapy by using US-guided near-infrared tomography. Radiology. 2013 Feb;266(2):433-42. doi: 10.1148/radiol.12112415. Epub 2012 Dec 21.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- 02-064S-2
- R01EB002136 (Concessão/Contrato do NIH dos EUA)
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .
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