	US 12,029,601 B2
	Systems and methods for three-dimensional imaging
Peiyan Cao, Shenzhen (CN); and Yurun Liu, Shenzhen (CN)
Assigned to SHENZHEN XPECTVISION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed by SHENZHEN XPECTVISION TECHNOLOGY CO., LTD., Shenzhen (CN)
Filed on Jan. 10, 2022, as Appl. No. 17/571,889.
Application 17/571,889 is a continuation of application No. PCT/CN2019/098158, filed on Jul. 29, 2019.
Prior Publication US 2022/0125397 A1, Apr. 28, 2022
Int. Cl. A61B 6/50 (2024.01); A61B 6/00 (2006.01); A61B 6/42 (2024.01); G01N 33/50 (2006.01)

CPC A61B 6/50 (2013.01) [A61B 6/4266 (2013.01); A61B 6/485 (2013.01); G01N 33/5091 (2013.01)]

10 Claims

1. A method comprising:

introducing a tracer into a body region of an organism at an introduction site of the organism, wherein the body region comprises L imaging regions (imaging regions (i), i=1, . . . , L), and wherein L is an integer greater than 1;

for i=1, . . . , L, causing the tracer in essentially only the imaging region (i) to emit characteristic X-ray photons (i);

for i=1, . . . , L, capturing a region image (i) of the tracer in essentially only the imaging region (i) with the characteristic X-ray photons (i);

determining a first 3D distribution of the tracer in the body region based on the region images (i), i=1, . . . , L; and

examining the first 3D distribution of the tracer in the body region to identify a sentinel lymph node for the introduction site.