Charles G Reisman, 774 Avalon Rd, Great Neck, NY 11021

2017006, Mar 9, 2017

Nov 18, 2016

15/355391

- Tokyo, JP
Charles A. Reisman - Mamaroneck NY, US

A61B 3/00
A61B 3/10
A61B 5/00
G01B 9/02
G06K 9/46
G06K 9/00
G06K 9/52
A61B 3/12
G06T 7/00

Geographic atrophy of the eye can be detected and measured by imaging the eye at a depth greater than the retinal pigment epithelium (RPE) at a plurality of locations of the eye, for example, using optical coherence tomography (OCT); determining a ratio of the intensities of imaging signals of a retinal layer(s) with respect to the intensity of imaging signals of a sub-RPE layer(s) at each location; determining representative values based at least in part on the determined ratios; generating a map of the representative values; and identifying diseased areas from the map. Contours and binary maps may be generated based on the identified diseased areas. The size and shape of the identified areas may be analyzed and monitored over a period of time.

2017006, Mar 9, 2017

Nov 18, 2016

15/355650

- Tokyo, JP
Charles A. Reisman - Mamaroneck NY, US

A61B 3/00
G06T 7/00
A61B 3/12
A61B 3/10
A61B 3/14

Optical coherence tomography (OCT) scan data of a subject is acquired over a region of interest which can include an optic disc or a macula of a retina. Layer boundaries of retinal layers are identified in the OCT scan data to facilitate measurements. In one aspect, a measurement related to ratio value between a total backscattered signal intensity of one or more target layers of the retina and a total backscattered signal intensity of one or more reference layers is computed on a location-by-location basis within a region of interest of the OCT scan data. Measurements can be collected, aggregated, analyzed, and displayed in connection with other information taken or derived from the OCT scan data.

2015034, Dec 3, 2015

Aug 13, 2015

14/825286

- Tokyo, JP
Charles A. Reisman - Mamaroneck NY, US

A61B 3/00
A61B 3/14
A61B 3/10
A61B 3/12

Optical coherence tomography (OCT) scan data of a subject is acquired over a region of interest which can include an optic disc or a macula of a retina. Layer boundaries of retinal layers are identified in the OCT scan data to facilitate measurements. In one aspect, a measurement related to ratio value between a total backscattered signal intensity of one or more target layers of the retina and a total backscattered signal intensity of one or more reference layers is computed on a location-by-location basis within a region of interest of the OCT scan data. Measurements can be collected, aggregated, analyzed, and displayed in connection with other information taken or derived from the OCT scan data.

2015020, Jul 23, 2015

Dec 22, 2014

14/579168

- Tokyo, JP
Charles A. Reisman - Mamaroneck NY, US

A61B 3/00
G01N 21/64
G01N 21/47

Geographic atrophy of the eye can be detected and measured by imaging the eye at a depth greater than the retinal pigment epithelium (RPE) at a plurality of locations of the eye, for example, using optical coherence tomography (OCT); determining a ratio of the intensities of imaging signals of a retinal layer(s) with respect to the intensity of imaging signals of a sub-RPE layer(s) at each location; determining representative values based at least in part on the determined ratios; generating a map of the representative values; and identifying diseased areas from the map. Contours and binary maps may be generated based on the identified diseased areas. The size and shape of the identified areas may be analyzed and monitored over a period of time.

2015020, Jul 23, 2015

Jan 23, 2014

14/161796

- TOKYO, JP
Zhenguo Wang - Fort Lee NJ, US
Charles A. Reisman - Mamaroneck NY, US
Kinpui Chan - Ridgewood NJ, US

KABUSHIKI KAISHA TOPCON - TOKYO

G01B 9/02

Optical coherence tomography light sources can be non-linear and attempts to linearize them can lead to asynchrony between the light source and A-line scans and missampling in the scans causing signal noise. Accordingly, a system and methods are provided herein to detect missampling by obtaining a plurality of interferograms; providing at least two wavenumber reference signals at different wavenumbers, wherein the wavenumber reference signals comprise attenuated or enhanced portions of each of the plurality of interferograms; aligning each of the plurality of interferograms according to one of the at least two wavenumber reference signals; and for each of the plurality of interferograms, identifying an interferogram as missampled if another of the at least two reference signals does not align with a corresponding reference signal in a statistically significant number of the plurality of interferograms. An optical element, for example, an optical notch, may be used to generate the reference signals.

2015001, Jan 15, 2015

Jul 12, 2013

13/940899

- Tokyo, JP
Charles A. Reisman - Mamaroneck NY, US
Zhenguo Wang - Fort Lee NJ, US
Kinpui Chan - Ridgewood NJ, US

A61B 3/10
G01B 9/02

351206, 356497

During scan capture with an OCT imaging system, the focal plane position can be simultaneously shifted over at least a portion of an image range. As a result, a plurality of image frames respectively corresponding to various focal plane positions is acquired. The image frames can be combined to generate a composite image having suitable resolution throughout the image range, including regions associated with weak-intensity or low-reflectance features. Further, windowed averaging can be performed prior to generation of the composite image so that the composite image incorporates weights given to image data in focus.

2014029, Oct 2, 2014

Mar 27, 2013

13/851612

Kabushiki Kaisha TOPCON - , US
Charles A. Reisman - Mamaroneck NY, US

G01B 9/02

356479

Methods for generating optical coherence tomography intensity maps are provided. A beam of light is generated and divided along a sample path and a reference path. The sample path beam of light is directed to locations in an X-Y plane. Light returned from each of the sample path and the reference path is received. Sets of outputs are generated, each corresponding to light intensities received at different wavelengths of the light source when the beam of light is directed at a particular X-Y plane location, the light intensities including information about a light reflectance distribution within an object in a depth direction Z at the particular X-Y plane location. A set of outputs generated from directing the beam of light at a particular X-Y plane location is high-pass filtered to generate a set of filtered outputs suitable for generating a two-dimensional image intensity map of the object.

2014027, Sep 18, 2014

Mar 12, 2014

14/206078

- Tokyo, JP
Charles A. Reisman - Mamaroneck NY, US

Kabushiki Kaisha TOPCON - Tokyo

G06T 7/00

382131

Provided is a method of processing image data and detecting a region of an image represented by the image data to be excluded from an analysis of the image. According to the method, image data captured by a medical modality is received. An evaluation of a portion of the image data representing a two-dimensional view of a subject appearing in the image is conducted to locate, in the two-dimensional view, the region to be excluded from the analysis of the image. A feature pertinent to the analysis appearing in a remaining portion of the image, that is outside of the region to be excluded from the analysis located by the evaluation, is detected.