Making the Finest Blood Vessels Visible
Fluorescence Module Supports Cerebral Aneurysm Surgery
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Dr. Joaquim Enseñat MD, PhD Neurosurgery, Clinic de Barcelona Hospital, Spain
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Images: © Leica Microsystems GmbH
- 1. Dr. Joaquim Enseñat, neurosurgeon at the Clinic de Barcelona Hospital, Spain: “Videoangiography with the Leica FL800 fluorescence module is an innovative, simple, and above all, extremely fast method – and that is one of the main criteria in cerebral aneurysm surgery.”
- 2. Fluorescence-aided videoangiography with the Leica FL800 fluorescence module enables neurosurgeons to watch blood flow in the brain during surgery via the surgical microscope, without additional measuring apparatus.
- 3. Videoangiography with the Leica FL800 is a fast, easy method of checking whether the aneurysm has been perfectly clipped and whether blood is properly flowing through the bypass,” says Enseñat.
- 4. The patient is injected intravenously with ICG (IndoCyanineGreen) dye, which is well tolerated and spreads through the bloodstream quickly. Excited by light in the 800 nanometer wavelength range, the ICG fluoresces and emits light at a wavelength of 835 nanometers. This infrared light, which is invisible to the human eye, is filtered out by means of the microscope optics and then transformed into a black and white image by a near infrared NIR CCD camera. Within seconds after the ICG injection, the surgeon can examine blood flow in the vascular structures in real time on a connected monitor
- 5. The Leica FL800 intraoperative videoangiography module is used in conjunction with ICG (IndoCyanineGreen) fluorescent agent to visualize blood flow in cerebral vessels. Surgeons can watch a patient’s blood flow in the brain during surgery directly through the microscope or on a monitor. The Leica FL800 can be integrated with the Leica M720 OH5 and Leica M525 OH4 surgical microscopes.
