A new ct device dedicated to mammary gland

Abstract

The invention discloses a novel CT device for breasts. The device comprises an X-ray machine, a blade type shutter, a breast mold body and a panel detector. The X-ray machine and the panel detector are fixedly to a platform support through an X-ray machine support and a panel detector support, an auxiliary support is fixed to a rotary table, and the rotary table drives the X-ray machine and the panel detector to rotate around the breast mold body. The blade type shutter of a rotating type blade structure is arranged at the position of a beam outlet of the X-ray machine and drives the blade-type shutter to rotate through a motor on the blade-type shutter. When the panel detector works in the exposure process, X-rays emitted by the X-ray machine transmit through an opening of the blade type shutter to illuminate to the breast mold body and are detected and received by the panel detector. The novel CT device for breasts can reduce motion artifacts of a breast CT image and prevent the breasts from receiving unnecessary radiation dose.

Description

technical field [0001] The invention relates to the technical field of computerized tomography, in particular to a novel breast-specific CT device. Background technique [0002] At present, computed tomography (CT) has been widely used in the medical field and achieved good results. Since breast cancer has become the most serious malignant tumor that endangers women's health in recent years, breast-specific CT equipment based on flat-panel detectors provides a new breast cancer diagnosis method. In the middle of the field, the X-ray machine and the flat panel detector rotate below to realize the detection of breast lesions. [0003] However, the scanning frame rate of the flat panel detector in the prior art is relatively slow, about 30 frames per second, so that when performing a breast CT scan, the flat panel detector is not stationary relative to the breast in each frame, which will bring motion to the image Artifacts, and the longer the exposure time in each frame, the...

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Problems solved by technology

[0003] However, the scanning frame rate of the flat panel detector in the prior art is relatively slow, about 30 frames per second, so that when performing a breast CT scan, the flat panel detector is not stationary relative to the breast in each frame, which will bring motion to the image Artifacts, and the longer the exposure time in each frame, the greater the motion artifacts; at the same time, in each frame of the flat panel detector, it is divided into the data readout part and the X-ray irradiation part, and the readout part does not Receive X-rays, but at this time the X-ray machine is still emitting lines, and the breasts are also receiving rays, resulting in unnecessary radiation doses

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