Abstract:
Exemplary systems, devices, methods, apparatus and computer-accessible media for providing and/or utilizing optical frequency domain imaging (OFDI) and fluorescence of structures and, e.g., multimodality imaging using OFDI techniques and fluorescence imaging techniques are described. For example, an arrangement can provide at least one electro-magnetic radiation to an anatomical structure. Such exemplary arrangement can include at least one optical core and at least one cladding at least partially surrounding the fiber(s). A region between the optical core(s) and the cladding(s) can have an index that is different from indexes of the optical core(s) and the cladding(s). The arrangement can also include at least one apparatus which is configured to transmit the radiation(s) via the optical core(s) and the cladding(s) to the anatomical structure.
Abstract:
In accordance with exemplary embodiments of the present disclosure, device and method can be provided which can facilitate imaging of biological tissues, e.g., luminal organs in vivo, using optical techniques. The exemplary device can include different designs an features of one or more catheters, which can illuminate the tissues, and collect signals from the inside of the lumen. In another exemplary embodiment according to the present disclosure, a balloon-catheter can be provided with the flexible neck, which can absorb most of the bending. According to still another exemplary embodiments of the present disclosure, a balloon-catheter tethered capsule can be provided, and according a yet further exemplary embodiment, a structured balloon design can be provided with one or more protuberances, thus enabling imaging of the structures in close contact, e.g., without compressing of the tissue.
Abstract:
Apparatus for irradiating a sample, comprising an interferometer forwarding an electromagnetic radiation and a sample arm receiving the electromagnetic radiation, wherein the sample arm includes an arrangement which is configured to produce at least two radiations from the electromagnetic radiation so as to irradiate the sample, and to delay a first radiation of the at least two radiations with respect to a second radiation of the at least two radiations.
Abstract:
A system for imaging tissue comprises a diffractive arrangement capable of providing illumination of one or more wavelengths along a first dimension; and a lens arrangement which focuses the illumination in a direction into the tissue along a second dimension different from said first dimension, the lens arrangement receiving a returned illumination from the tissue representative of one or more locations in the tissue in accordance with the one or more wavelengths.
Abstract:
Un aparato para proporcionar al menos una radiación electromagnética a al menos una muestra, que comprende: una pluralidad de lentes axicón (520, 530) que están configuradas para proporcionar la al menos una radiación electromagnética que tiene al menos una forma parcialmente de anillo; y al menos una disposición óptica que incluye una apertura óptica y configurada para proporcionar al menos otra radiación en base a la al menos una radiación electromagnética, en el que la al menos otra radiación que genera una función de transferencia de la disposición óptica que es diferente de la función de transferencia de al menos una de las lentes axicón (520, 530), en el que un diámetro del punto de enfoque es menor que 10 μm, y una profundidad del enfoque o intervalo focal es mayor que aproximadamente 0,5 mm.
Abstract:
A method and a related apparatus for optical imaging in particular for performing three-dimensional surface measurements. The apparatus comprises a double-clad or a multi-clad fibre. Several varieties of transmitting the light through the fibre to the sample and collecting the light reflected from the sample in the fibre are disclosed.