Optical Coherence Tomography of the Gastrointestinal Tract
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 4
- 试验地点
- 1
- 主要终点
- The OCT images will be correlated to the specific biopsy site and biopsy number.
研究概览
简要总结
Optical coherence tomography (OCT) is a non-invasive imaging technique that uses light to create pictures of living tissues and has been successfully used to generate high resolution cross-sectional images of tissue in the human eye and skin. OCT systems are now commercially available for eye and skin use, and several clinical reports on the use of OCT in the gastrointestinal tract have been published as well.
The purpose of this study is to develop a high-speed noninvasive OCT probe which can be placed through an endoscope for the early diagnosis of pre-cancerous and cancerous lesions in the gastrointestinal tract. This is a pilot clinical research study that is designed to advance OCT technology, which may in the future be able to replace or augment endoscopic biopsies.
详细描述
Protocol Summary The long term objective of the proposed research is to develop a high-speed noninvasive endoscopic functional optical coherence tomography (F-OCT) device using microelectromechanical system (MEMS) technology for early diagnosis of tumors or lesions in gastrointestinal tracts.
Study Design All patients undergoing endoscopy at UCIMC CDDC and who meet eligibility criteria will be candidates for enrollment in the protocol. Signed informed consent will be obtained.
Standard of Care Procedure The patients will undergo the standard of care endoscopy. Endoscopy is performed on a routine basis with conscious sedation or general anesthesia. Digital images and video clips of the areas of interest will be captured in the usual standard of care fashion.
Research Procedure The OCT probe will then be inserted through the biopsy channel of the endoscope into the GI tract lumen and OCT images will be acquired of the lesions just prior to biopsies (research procedure). In addition, OCT images will be taken of the surrounding normal tissue.
Primary Endpoint The OCT images will be correlated to the specific biopsy site and biopsy number.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Only
- 时间视角
- Prospective
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 with known Barrett's esophagus with or without dysplasia, who are scheduled for surveillance endoscopy with biopsy or endoscopic mucosal resection (EMR).
- •Patients with early esophageal or gastric cancer who are undergoing confirmatory endoscopy with biopsy. These cancers must be limited to T1 N0 M0 (tumor invades submucosa with no lymph node involvement and no metastasis) according to the American Joint Committee on Cancer (AJC) Guidelines (1988 or later). Tumors may either be adenocarcinoma or squamous cell cancers. EUS and CT scanning will be required to confirm tumor staging. Tumors must be limited only to the mucosa or submucosa when examined by high frequency c-EUS. Any thickness of tumor lesion is acceptable provided the lesion does not appear to reach the muscularis propria.
- •Patients with intestinal metaplasia with or without dysplasia of the stomach who are undergoing endoscopy with biopsy or EMR.
- •Patients must be at least 18 years of age. Female patients must not be pregnant (must have a negative serum pregnancy test) or nursing, and must be practicing a medically acceptable form of birth control or be sterile or postmenopausal.
- •Patients must sign an informed consent.
排除标准
- •Patients with esophageal or gastric cancer, who have tumor extension into the muscularis propria on endoscopic ultrasonography (EUS) (i.e. tumor depth of invasion T2 or greater).
- •Patients with esophageal strictures unresponsive to dilation.
- •Patients with known contraindications to analgesia or endoscopy.
- •Patients with inability to understand or carry out instructions.
结局指标
主要结局
The OCT images will be correlated to the specific biopsy site and biopsy number.
时间窗: 1 hour
次要结局
未报告次要终点