Pilot Study to Evaluate OFDI Surveillance and Image Guided Biopsy of the Esophagus
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 22
- 试验地点
- 2
- 主要终点
- Number of Subjects in Which the Targeted Locations Identified Through OFDI Imaging Correlates With the Biopsies.
研究概览
简要总结
The specific aim of this study is to determine the feasibility of marking target pathologic locations identified on Optical Frequency Domain Imaging (OFDI) datasets using superficial cautery marks of the esophagus that are visible by endoscopy for subsequent guidance of biopsy.
详细描述
Twenty four consenting patients undergoing esophagogastroduodenoscopy (EGD) surveillance following a confirmed diagnosis of Barrett's esophagus will be recruited at Massachusetts General Hospital (MGH) . Along with Optical Frequency Domain Imaging (OFDI) imaging and cautery marking for targeted biopsy, the patients will undergo a standard of care clinical Esophagogastroduodenoscopy (EGD) procedure including endoscopic random biopsy. This study requires the use of a balloon catheter which is a commonly used technique and is accepted in clinical practice for dilation of esophageal and colonic strictures and for photodynamic therapy.
Once in position, the OFDI tissue marking laser will be activated by the physician. The physician will control the marking and make two marks of a duration of 2 seconds each. The 2 seconds time period will limit the tissue effects to only the superficial layers of the esophageal mucosa.
It is expected that the total experimental time including insertion and inflation of the OFDI balloon catheter, OFDI imaging, tissue marking, and removal of the OFDI balloon will add approximately 15 minutes to the total length of the EGD.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Diagnostic
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients undergoing an EGD for Barrett's esophagus surveillance with a prior confirmed Barrett's segment at least 1 cm in length
- •Patients must be over the age of 18
- •Patient must be able to give informed consent
- •Women with child bearing potential must have a negative pregnancy test prior to procedure
排除标准
- •Patients on anti-platelet and anti-coagulation medications and NSAIDS at the time of procedure
- •Patients with a history of hemostasis disorders
- •Patients that are pregnant
- •Patients with esophageal strictures
研究组 & 干预措施
MGH OFDI marking and imaging
OFDI imaging
干预措施: MGH OFDI marking (Device)
结局指标
主要结局
Number of Subjects in Which the Targeted Locations Identified Through OFDI Imaging Correlates With the Biopsies.
时间窗: day 1, during diagnostic procedure
Determination of the feasibility to mark targeted pathologic locations identified through OFDI imaging using superficial cautery marks.Verification by endoscopy and utilization of the marks for biopsy guidance.Images will be analyzed and compared to biopsies of the correlated marked tissue.
次要结局
未报告次要终点
研究者
Guillermo Tearney
Professor of Pathology
Massachusetts General Hospital