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Laser surgical microscopes should enable uniform illumination of the operative field, and require less luminous energy compared with existing xenon surgical microscopes.
This article was published in the following journal.
Name: Operative neurosurgery (Hagerstown, Md.)
We propose a time-domain approach for fluorescence lifetime measurements using nonlinear fluorescence microscopy constructed of a pump-probe setup with two-wavelength laser pulses. Nonlinear fluoresce...
The use of intraoperative fluorescence has proven to be a useful tool in multiple neurosurgical procedures with a potential utility in treating arteriovenous malformations (AVMs). The aim of this stud...
Meningiomas are the most frequently occurring primary intracranial tumours in adults. Surgical removal can only be curative by complete resection; however surgical access can be challenging due to ana...
Intraoperative indocyanine green videoangiography (ICG-VA) has been reported to be utilized in various cerebrovascular surgeries, wherein the blood flow is noticeably shown in white with a black backg...
Bow Hunter's syndrome (BHS) is a symptomatic vertebrobasilar insufficiency resulting from a rotational stenosis or occlusion of a dominant vertebral artery (VA). VA is dynamically compressed by cervic...
Aim of this clinical study is to establish a novel technique, the so called intraoperative fluorescence angiography, for kidney graft perfusion visualization during the transplant procedur...
Intraoperative surgical fluorescence microscopy is a useful technique for the surgical resection of glioma. However the accuracy of this method is limited by its too low sensitivity. Fluo...
The use of fluorescence for real-time evaluation of organ and tissue vascularization and lymph node anatomy is a recent technology with potential for the surgical treatment of cancer. The ...
This is a randomized, controlled, parallel study to determine the difference in post-operative anastomotic leak rate of colorectal anastomosis where colon and rectal tissue perfusion is ev...
Investigators conduct a monocentric pilot study with the objective to determine the hemodynamic parameter of fluorescence angiography (slope, amplitude, saturation time ) best correlated w...
A light microscopic technique in which only a small spot is illuminated and observed at a time. An image is constructed through point-by-point scanning of the field in this manner. Light sources may be conventional or laser, and fluorescence or transmitted observations are possible.
Microscopy of specimens stained with fluorescent dye (usually fluorescein isothiocyanate) or of naturally fluorescent materials, which emit light when exposed to ultraviolet or blue light. Immunofluorescence microscopy utilizes antibodies that are labeled with fluorescent dye.
Non-invasive method of vascular imaging and determination of internal anatomy without injection of contrast media or radiation exposure. The technique is used especially in CEREBRAL ANGIOGRAPHY as well as for studies of other vascular structures.
Fluorescence microscopy utilizing multiple low-energy photons to produce the excitation event of the fluorophore. Multiphoton microscopes have a simplified optical path in the emission side due to the lack of an emission pinhole, which is necessary with normal confocal microscopes. Ultimately this allows spatial isolation of the excitation event, enabling deeper imaging into optically thick tissue, while restricting photobleaching and phototoxicity to the area being imaged.
A technique utilizing a laser coupled to a catheter which is used in the dilatation of occluded blood vessels. This includes laser thermal angioplasty where the laser energy heats up a metal tip, and direct laser angioplasty where the laser energy directly ablates the occlusion. One form of the latter approach uses an EXCIMER LASER which creates microscopically precise cuts without thermal injury. When laser angioplasty is performed in combination with balloon angioplasty it is called laser-assisted balloon angioplasty (ANGIOPLASTY, BALLOON, LASER-ASSISTED).
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...