The invention provides methods for detecting lymphedema and methods for managing lymphedema in an individual. The methods of the invention involves utilizing a light sensing device having a video camera, depth sensor and software effective to perform a 3-dimensional scan and generate a three-dimensi
The invention provides methods for detecting lymphedema and methods for managing lymphedema in an individual. The methods of the invention involves utilizing a light sensing device having a video camera, depth sensor and software effective to perform a 3-dimensional scan and generate a three-dimensional digital model of at least a portion of the body from data obtained by the camera and depth sensor, thereby obtaining a three-dimensional digital model of at least a portion of the body from which the size of a select region of the body can be assessed to detect, monitor and/or manage lymphedema. The invention also provides methods to detect and manage lymphedema that involve assessing any combination of size, amount of extracellular fluids, and thickness of the skin at a select region of the body of an individual.
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1. A method for detecting lymphedema in an individual comprising: (a) using a light sensing device that comprises a video camera, depth sensor and software for generating a three-dimensional digital model of at least a portion of the body of the individual from data obtained by the camera and depth
1. A method for detecting lymphedema in an individual comprising: (a) using a light sensing device that comprises a video camera, depth sensor and software for generating a three-dimensional digital model of at least a portion of the body of the individual from data obtained by the camera and depth sensor to obtain a three-dimensional digital model of at least a portion of the body of the individual;(b) determining the size of a first select region of the body from the three-dimensional digital model; and(c) utilizing the size of the first select region and the size of a first reference region similarly determined according to steps (a) and (b) to obtain a size differential, wherein lymphedema is detected in the first select region if the size differential indicates that the size of the first select region is greater than the size of the first reference region by at least about 3%. 2. The method of claim 1, wherein the light sensing device comprises a RGB video camera and a charge-coupled device (CCD) image sensor, contact image sensor (CIS), or an active pixel sensor in complementary metal-oxide-semiconductor (CMOS). 3. The method of claim 1, wherein the light sensing device is a mobile device comprising software for generating, in real time, a three-dimensional model of at least a portion of the body of an individual. 4. The method of claim 1, wherein the sizes of the first select region and first reference region are indicated by the width, circumference or volume of the regions. 5. The method of claim 1, wherein the first select region and first reference region comprise symmetrical portions of the left and the right extremities. 6. The method of claim 5, wherein the size differential correspond to the difference between the size of the first select region and the size of the first reference region. 7. The method of claim 1, wherein the first select region and first reference region comprise substantially the same portion of the body occurring at a post-surgery and a pre-surgery time point, respectively. 8. The method of claim 7, further comprising determining the individual's weight at the post-surgery time point, and further utilizing the individual's weight at the post-surgery time point and a reference weight of the individual similarly determined at the pre-surgery time point to obtain a weight adjusted size differential. 9. The method of claim 7, further comprising determining the size of a second select region of the body from the three-dimensional digital model, wherein the first and second select regions comprise symmetrical portions of the left and the right extremities, and further utilizing the size of the second select region and a similarly determined size of a second reference region to obtain a size differential that corresponds to a relative volume change, wherein the second reference region corresponds substantially to the same portion of the body as the second select region and occurring at the pre-surgery time point. 10. The method of claim 1, wherein the first select region and first reference region comprise substantially the same region of the body occurring two time points post surgery, a later time point and an earlier time point, respectively. 11. A method for detecting lymphedema in an individual comprising: (a) determining a size differential for a first select region and a first reference region according to claim 1, and(b) determining the amount of extracellular fluids in the first select region of the body of the individual using bioimpedance spectroscopy, and comparing the amount of extracellular fluids in the first select region with the amount of extracellular fluids in the first reference region similarly determined using bioimpedance spectroscopy to obtain an impedance ratio change, wherein lymphedema is detected in the first select region if the size differential indicates that the size of the first select region is greater than the size of the first reference region by at least about 3%, and the impedance ratio change is about 0.1 or more. 12. A method for detecting lymphedema in an individual comprising: (a) determining a weight adjusted size differential for a first select region and a first reference region according to claim 8, and(b) determining the amount of extracellular fluids in the first select region of the body of the individual using bioimpedance spectroscopy, and comparing the amount of extracellular fluids in the first select region with the amount of extracellular fluids in the first reference region similarly determined using bioimpedance spectroscopy to obtain an impedance ratio change, wherein lymphedema is detected in the first select region if the weight adjusted size differential indicates that the size of the first select region is greater than the size of the first reference region by at least about 3%, and the impedance ratio change is about 0.1 or more. 13. A method for detecting lymphedema in an individual comprising: (a) determining a size differential corresponding to relative volume change according to claim 9, and(b) determining the amount of extracellular fluids in the first select region of the body of the individual using bioimpedance spectroscopy, and comparing the amount of extracellular fluids in the first select region with the amount of extracellular fluids in the second select region similarly determined using bioimpedance spectroscopy to obtain an impedance ratio change, wherein lymphedema is detected in the first select region if the size differential indicates that the size of the first select region is greater than the size of the first reference region by at least about 3%, and the impedance ratio change is about 0.1 or more. 14. A method for detecting lymphedema in an individual comprising: (a) determining a size differential for a first select region and a first reference region according to claim 1, and(b) determining skin thickness in the first select region using ultrasound, and comparing the thickness of the skin in the first select region with thickness of the skin in the first reference region similarly determined using ultrasound to obtain an impedance ratio change, wherein lymphedema is detected in the first select region if the size differential indicates that the size of the first select region is greater than the size of the first reference region by at least about 3%, and thickness of the skin is increased by at least about 5%. 15. The method of claim 14, wherein skin thickness is indicated by epidermis-dermis depth. 16. The method of claim 14, wherein skin thickness is indicated by subcutis depth. 17. A method for detecting lymphedema in an individual comprising: (a) Determining the amount of extracellular fluids and skin thickness at a select region of the body of the individual, wherein amount of extracellular fluids is determined using bioimpedance spectroscopy, and thickness of the skin is determined using ultrasound; and(b) Comparing the amount of extracellular fluids and skin thickness at the select region to that of a reference region similarly determined according to step (a), wherein early-stage lymphedema is detected in the select region if the increase in amount of extracellular fluids in the select region relative to the reference region corresponds to an impedance ratio change of about 0.1 or more, and the skin thickness at the select region relative to the reference region is increased by at least about 5%. 18. A method for managing lymphedema in an individual comprising monitoring for lymphedema in an individual at risk for lymphedema using the method of claim 1 and providing medical guidance or treatment to manage lymphedema in the individual. 19. A method for managing lymphedema in an individual comprising monitoring for lymphedema in an individual at risk for lymphedema using the method of claim 11 and providing medical guidance or treatment to manage lymphedema in the individual. 20. A method for managing lymphedema in an individual comprising monitoring for lymphedema in an individual at risk for lymphedema using the method of claim 14 and providing medical guidance or treatment to manage lymphedema in the individual. 21. A method for managing lymphedema in an individual comprising monitoring for lymphedema in an individual at risk for lymphedema using the method of claim 17 and providing medical guidance or treatment to manage lymphedema in the individual.
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