Abstract: An image processing apparatus according to an embodiment includes processing circuitry configured: to obtain a medical image to be labeled; to obtain first image data taken by implementing a first imaging method; to specify a feature related to a first organ in the first image data; to receive an imaged range that is in second image data to be taken by implementing a second imaging method and is related to a second organ; to specify a feature related to the imaged range of the second organ corresponding to the imaged range of the second organ in the first image data; and to estimate an imaging parameter that corresponds to the imaged range of the second organ corresponding to the second imaging method, on the basis of the feature related to the first organ and the feature related to the imaged range of the second organ in the first image data.

Abstract: A medical image processing apparatus according to an embodiment includes processing circuitry and storage circuitry. The processing circuitry acquires a medical image. The processing circuitry extracts a region of interest from the medical image. The processing circuitry sets a calculation rule for calculating a characteristic amount for the region of interest. The storage circuitry stores therein the calculation rule.

Abstract: The present disclosure discloses a method for determining ecological risks of polycyclic aromatic hydrocarbon in a water body. The method may include (1) screening representative species of a water ecological system in a region; (2) obtaining toxicity data of benzoapyrene; (3) calculating benzoapyrene concentration values HC5 of 95% of species in the protected water ecological system; (4) determining types of polycyclic aromatic hydrocarbon pollutants and corresponding environmental concentrations thereof by sampling, and analyzing concentration distribution characteristics of various polycyclic aromatic hydrocarbons; (5) calculating ecological risk quotient values RQi of specific polycyclic aromatic hydrocarbon pollutants; and (6) calculating a total ecological risk quotient value RQt and confirming concrete ecological risks.

Abstract: The present disclosure discloses a method for determining ecological risks of heavy metal pollution in sediments of river and lake. The method includes the following steps of: (1) determining concentration levels of heavy metal pollutants at different positions of water body sediments; (2) conducting statistic analysis on distribution characteristics of concentration data of various heavy metal pollutants in the water body sediments; (3) calculating an ecological risk index of a heavy metal pollutant using a formula; (4) calculating a final result of Eri; (5) drawing a distribution curve of Eri values; (6) calculating a total ecological risk comprehensive index HRI caused by various heavy metal pollutants in the evaluated water body, and drawing a cumulative probability distribution curve of HRI values; and (7) analyzing a probability that the total ecological risk comprehensive index HRI of the water body appears at different risk levels with reference to a risk level classification standard.

Abstract: The present disclosure discloses a method for determining ecological risks of heavy metal pollution in sediments of river and lake. The method includes the following steps of: (1) determining concentration levels of heavy metal pollutants at different positions of water body sediments; (2) conducting statistic analysis on distribution characteristics of concentration data of various heavy metal pollutants in the water body sediments; (3) calculating an ecological risk index of a heavy metal pollutant using a formula; (4) calculating a final result of Eri; (5) drawing a distribution curve of Eri values; (6) calcualting a total ecological risk comprehensive index HRI caused by various heavy metal pollutants in the evalulated water body, and drawing a cumulative probability distribution curve of HRI values; and (7) analyzing a probability that the total ecological risk comprehensive index HRI of the water body appears at different risk levels with reference to a risk level classification standard.

Abstract: The present disclosure discloses a method for determining ecological risks of polycyclic aromatic hydrocarbon in a water body. The method may include (1) screening representative species of a water ecological system in a region; (2) obtaining toxicity data of benzoapyrene; (3) calculating benzoapyrene concentration values HC5 of 95% of species in the protected water ecological system; (4) determining types of polycyclic aromatic hydrocarbon pollutants and corresponding environmental concentrations thereof by sampling, and analyzing concentration distribution characteristics of various polycyclic aromatic hydrocarbons; (5) calculating ecological risk quotient values RQi of specific polycyclic aromatic hydrocarbon pollutants; and (6) calculating a total ecological risk quotient value RQt and confirming concrete ecological risks.

Abstract: A method for assessing and managing health risks of heavy metal pollution. The method includes: 1) investigation and analysis of environmental pollution; 2) population exposure analysis; 3) risk assessment and representation; 4) risk perception and estimate of acceptable level of risk; 5) identification of an overall boundary of risk management; 6) identification of priority pollutants; and 7) identification of a key population and a key managing point. The method panoramically analyzes the health risk taking into account multiple sources, multiple environmental media, multiple exposure routes, and multiple receptors. The method also integrates the risk assessment, public risk perception, public acceptable risk level, and risk management to establish a comprehensive risk management strategy.