[특허]Examination of breast tissue using time-resolved spectroscopy

Non-Invasive Technology, Inc. (Philadelphia PA 02)

Examination of breast tissue using time-resolved spectroscopy

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-006/00
출원번호	US-0093208 (1993-07-16)
발명자 / 주소	Chance Britton (Marathon FL)
출원인 / 주소	Non-Invasive Technology, Inc. (Philadelphia PA 02)
인용정보	피인용 횟수 : 76 인용 특허 : 0

초록 ▼

A method of breast tissue examination using time-resolved spectroscopy includes the following steps. A support that includes an input port and an output port separated by a selected distance is positioned relative to the examined breast. Locations of the input and output ports are selected to examine a tissue region of the breast. Light pulses of a selected wavelength and duration less than a nanosecond are introduced into the breast tissue at the input port and detected over time at the detection port. Signals corresponding to photons of detected modified pulses are accumulated over time. Values of a scattering coefficient or an absorption coefficient of the examined breast tissue are calculated based on the shape of the modified pulses. The examined breast tissue is characterized based on the values of the scattering coefficient or the absorption coefficient. Absorbing or fluorescing contrast agents may be introduced into the examined tissue. This method may be used in conjunction with x-ray mammography, needle localization procedure or MRI mammography.

대표청구항 ▼

A method for examination of breast tissue of a female subject using pulses of light of a selected wavelength, said method comprising the steps of: (a) providing a support, positioned relative to the examined breast, comprising a set of input ports and a set of output ports separated by a selected distance, each said input port constructed to define an irradiation location of said breast, each said output port constructed to define a detection location of said breast, (b) selecting locations of said input and output ports to examine a tissue region of the breast, (c) introducing into the breast tissue, at said selected input port, pulses of light of a selected wavelength in the visible or infra-red range, said pulses having duration of less than about a nanosecond, (d) detecting over time, at said selected detection port, photons of modified pulses that have migrated in the breast tissue, (e) integrating said photons over at least two selected time intervals separately spaced over the arrival time of said modified pulses, (f) calculating a value of an absorption coefficient (ma) of the examined breast tissue based on the number of photons integrated over each time interval, and (g) characterizing the examined breast tissue based on said value of the absorption coefficient.

이 특허를 인용한 특허 (76)

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연합인증

Examination of breast tissue using time-resolved spectroscopy

초록 ▼

대표청구항 ▼

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연합인증

Examination of breast tissue using time-resolved spectroscopy

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

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