System and method for quantifying pigmented lesion using oct
AssigneeKorea Photonics Technology Institute
InventorsByeong-il LEE, In Hee SHIN, Joo Beom EOM, Woosub SONG
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Abstract
Disclosed herein is a method for quantifying a pigmented lesion using Optical Coherence Tomography (OCT). The method includes (a) irradiating light and receiving an interference signal produced by reflection of the light from first and second boundary layers of a pigmented lesion; and (b) calculating size information of the pigmented lesion using phase information of the interference signal. According to embodiments of the present invention, there is an advantage of allowing calculation of size information of a pigmented lesion using OCT, by increasing a measurement range in the axial direction to which beams are irradiated.
Claims13
A method for quantifying a pigmented lesion using Optical Coherence Tomography (OCT), the method comprising:
- (a) irradiating light and receiving an interference signal produced by reflection of the light from first and second boundary layers of a pigmented lesion;
- and
- (b) calculating size information of the pigmented lesion using phase information of the interference signal.
A method for quantifying a pigmented lesion using Optical Coherence Tomography (OCT), the method comprising:
- (1) irradiating first light and receiving a first interference signal produced by reflection of the first light from first and second boundary layers of a pigmented lesion;
- (2) irradiating second light having a different wavelength from the first light and receiving a second interference signal produced by reflection of the second light from the first and second boundary layers;
- (3) calculating a mean wavelength from phase information of the first and second interference signals;
- and
- (4) calculating size information of the pigmented lesion using phase information of the first interference signal and the mean wavelength.
A system for quantifying a pigmented lesion, the system comprising:
- a photo coupler for splitting light produced from a light source into first and second split beams;
- a reference stage, to which the first split beam is irradiated and which is able to adjust a path;
- a sample stage, to which the second split beam is irradiated and on which a subject having a pigmented lesion is placed;
- a photo detector for receiving an interference signal produced by superposition of the first split beam reflected from the reference stage and the second split beam reflected from first and second boundary layers of the pigmented lesion;
- and
- a controller for calculating size information of the pigmented lesion using phase information of the interference signal.
Dependencies are inferred from the claim text.