Radiation image processing apparatus and cassette for storing radiation image

An apparatus for processing a radiation image, comprising:

• a pixel-value analyzing section to analyze pixel-values within a step pattern of a wedge area in said radiation image, said wedge area being an area in which a density varies step by step;
• a suspicious region analyzing section to detect a candidate of a suspicious region using information outputted from said pixel value analyzing section, said suspicion region analyzing section comprising:
• (i) a parameter-adjusting section to adjust a parameter for detecting said candidate of said suspicious region based on the information outputted by said pixel-value analyzing section, and (ii) a gradation-adjusting section to adjust a gradation of said radiation image based on the information outputted by said pixel-value analyzing section;
• a suspicious region detecting section to detect said candidate of said suspicious region using said parameter for detecting said candidate of said suspicious region, said parameter being adjusted by said parameter-adjusting section;
• an outputting section to output both a result of detecting said suspicious region by said suspicious region detecting section and said radiation image having said gradation adjusted by said gradation-adjusting section;
• and
• a step position-detecting device for detecting a step position of said wedge area based on a feature of a change amount of the pixel-values;
• wherein a region of interest is determined based on said step position detected by said step position-detecting device.

An apparatus for processing a radiation image that is a mammography, said apparatus comprising:

• a pixel-value analyzing section to analyze pixel-values within a step pattern of a wedge area in said radiation image, said wedge area being an area in which a density varies step by step;
• a suspicious region analyzing section to detect a candidate of a suspicious region using information outputted from said pixel value analyzing section, said suspicion region analyzing section comprising:
• (i) a parameter-adjusting section to adjust a parameter for detecting said candidate of said suspicious region based on the information outputted by said pixel-value analyzing section, and (ii) a gradation-adjusting section to adjust a gradation of said radiation image based on the information outputted by said pixel-value analyzing section;
• a suspicious region detecting section to detect said candidate of said suspicious region using said parameter for detecting said candidate of said suspicious region, said parameter being adjusted by said parameter-adjusting section;
• an outputting section to output both a result of detecting said suspicious region by said suspicious region detecting section and said radiation image having said gradation adjusted by said gradation-adjusting section;
• and
• an image-classifying section to classify said mammography having said gradation adjusted by said gradation-adjusting section, based on a degree of involution of mammary glands.

An apparatus for processing a radiation image, comprising:

• a pixel-value analyzing section to analyze pixel-values within a step pattern of a wedge area in said radiation image, said wedge area being an area in which a density varies step by step;
• a suspicious region analyzing section to detect a candidate of a suspicious region using information outputted from said pixel value analyzing section, said suspicious region analyzing section comprising a gradation-adjusting section to adjust a gradation of said radiation image based on the information outputted by said pixel-value analyzing section;
• a suspicious region detecting section to detect said candidate of said suspicious region based on said radiation image having said gradation which is adjusted by said gradation-adjusting section;
• and
• an image outputting section to output said radiation image having said gradation which is adjusted by said gradation-adjusting section;
• wherein said image-outputting section outputs at least one of a voltage applied to a radiation tube, a mAs value, a sec. value, a kind of an added filter, a kind of a radiation tube, a thickness of a focal point size, a compressing pressure, an enlarging rate and a tilt angle onto a partial area of said radiation image, on which a subject image does not overlap.