Intima-media thickness measuring apparatus and arterial sclerosis diagnosing system
First Claim
1. An apparatus for measuring an intima-media thickness of a blood vessel, comprising:
- an ultrasound device for outputting digital image data representing an image of the blood vessel produced by scanning the blood vessel with an ultrasound, the digital image data including a plurality of luminance values each corresponding to respective one of a plurality of pixels of the image; and
a data analyzing device for receiving the output digital image data and calculating the intima-media thickness of the blood vessel according to the received digital image data,wherein the data analyzing device comprises;
a setting device for setting a base position between a center of the blood vessel and a position in a vicinity of an inner intima wall of the blood vessel on the image, on the basis of a moving average of the luminance values; and
a calculation device for detecting a maximum value and a minimum value from among the luminance values respectively corresponding to a predetermined number of the pixels arranged from the base position toward a position of an outer adventitial wall on the image, and calculating the intima-media thickness on the basis of the maximum value and the minimum value.
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Abstract
An apparatus for measuring an intima-media thickness of a blood vessel is disclosed. The apparatus includes: an ultrasound device for outputting digital image data representing an image of the blood vessel produced by scanning the blood vessel with an ultrasound; and a data analyzing device for receiving the output digital image data and calculating the intima-media thickness of the blood vessel according to the received digital image data. The digital image data includes a plurality of luminance values each corresponding to respective one of a plurality of pixels of the image. The data analyzing device includes: a setting device for setting a base position between a center of the blood vessel and a position in a vicinity of an inner intima wall of the blood vessel on the image, on the basis of a moving average of the luminance values; and a calculation device for detecting a maximum value and a minimum value from among the luminance values respectively corresponding to a predetermined number of the pixels arranged from the base position toward a position of an outer adventitial wall on the image, and calculating the intima-media thickness on the basis of the maximum value and the minimum value.
67 Citations
9 Claims
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1. An apparatus for measuring an intima-media thickness of a blood vessel, comprising:
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an ultrasound device for outputting digital image data representing an image of the blood vessel produced by scanning the blood vessel with an ultrasound, the digital image data including a plurality of luminance values each corresponding to respective one of a plurality of pixels of the image; and a data analyzing device for receiving the output digital image data and calculating the intima-media thickness of the blood vessel according to the received digital image data, wherein the data analyzing device comprises; a setting device for setting a base position between a center of the blood vessel and a position in a vicinity of an inner intima wall of the blood vessel on the image, on the basis of a moving average of the luminance values; and a calculation device for detecting a maximum value and a minimum value from among the luminance values respectively corresponding to a predetermined number of the pixels arranged from the base position toward a position of an outer adventitial wall on the image, and calculating the intima-media thickness on the basis of the maximum value and the minimum value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification