Patient support means for x-ray absorption compensation in compu

X-ray or gamma ray systems or devices – Accessory – Object holder or support

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378209, 378 20, H05G 100, A61B 604

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active

050540491

ABSTRACT:
The x-ray absorption factor of each end section of a top table is lower than that of a middle section thereof. If the end section of the top table protrudes from an effective field of scan so that fan beams are transmitted through the protruded portion, the beams can hardly be absorbed by the protruded portion. Accordingly, projection data obtained are hardly subject to any significant differences which depend on the transmission of the fan beams. Even though an image is reconstructed in accordance with the obtained projection data, therefore, it can be restrained from suffering shading. Thus, a high-quality image can be obtained.

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