Intraoperative Hyperspectral Imaging in Gastrointestinal Anastomoses (HSIGI)

University of Leipzig

Status: Unknown

Conditions: Surgical Anastomosis

Treatments: Procedure: Hyperspectral Imaging

Study type: Interventional

Funder types: Other

Identifiers

NCT03667950

HSIGI

Details and patient eligibility

About

In this study, gastrointestinal anastomoses are examined with a hyperspectral camera.

Full description

The anastomoses were examined under standardized conditions directly after creation. The measurements were performed like described before, using the TIVITA Tissue system (Diaspective Vision GmbH, Am Salzhaff, Germany). This HSI-camera provides hyperspectral images with a high spectral resolution (5 nm) in the visible and near infrared range (500-1000 nm). The distance between camera and object was 30 cm for all measurements. The Number of Effective Pixels at this distance is 640 × 480 (x-, y-axis. The resulting field of view (FOV) has the dimensions 6.4 × 4.8 cm2 and a spatial resolution of 0.1 mm/pixel. The FOV is illuminated by 8 halogen spots (20 W each). The ceiling lights and other light sources were switched off, to avoid artifacts during the measurement (approximately 10 seconds). A RGB image and 4 false color images that represent physiologic parameters are intraoperatively provided by an analysis software. This work is focused on tissue oxygenation (StO2), which represents the relative blood oxygenation in the microcirculation of superficial tissue layers (approximately 1 mm) and the near-infrared (NIR) Perfusion Index, representing tissue layers in 4-6 mm penetration depth.

Enrollment: 200 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• all gastrointestinal anastomoses

Exclusion criteria

• inability to consent

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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200 participants in 1 patient group

hyperspectral imaging

Experimental group

Description:

diagnostic hyperspectral Imaging of the gastrointestinal anastomosis and calculating the anastomotic Perfusion measures

Treatment:

Procedure: Hyperspectral Imaging