Patent classifications
G03B42/026
X-ray imaging apparatus, medical image processing apparatus, X-ray imaging method and medical image processing method
According to one embodiment, an X-ray imaging apparatus includes an X-ray image acquisition unit, a control system and a display processing part. The X-ray image acquisition unit acquires X-ray image data of an object by using at least one imaging system. The control system controls the imaging system to acquire X-ray image data corresponding to different directions by reciprocating the imaging system repeatedly. The display processing part acquires X-ray image data for stereoscopic viewing out of the X-ray image data corresponding to the different directions to generate and display stereoscopically visible image data on a display unit based on the X-ray image data for the stereoscopic viewing. The X-ray image data for the stereoscopic viewing are acquired in a period without a motion or a possibility of the motion in an imaging part of the object.
METHOD AND APPARATUS FOR ENSURING CORRECT POSITIONING FOR A RADIOGRAPHY ACQUISITION
A method is disclosed for positioning a body region of a patient for a radiography acquisition by a radiography system. The method includes providing an examination requirement for the body region; pre-positioning the body region in the radiography system for the radiography acquisition; pre-positioning an acquisition unit of the radiography system for the radiography acquisition; producing a three-dimensional positioning acquisition of the body region using a 3D camera system; producing a preview image from the three-dimensional positioning acquisition, wherein a patient model is generated from the three-dimensional positioning acquisition and the preview image is produced from the patient model, and wherein the preview image depicts a representation as if made using the acquisition unit of the radiography system as intended in the pre-positioning adopted; and outputting at least one of the preview image and positioning information based on the preview image. An apparatus and computer readable medium are also disclosed.
MEDICAL IMAGE PROCESSING APPARATUS, MEDICAL IMAGE PROCESSING METHOD, COMPUTER-READABLE MEDICAL-IMAGE PROCESSING PROGRAM, MOVING-OBJECT TRACKING APPARATUS, AND RADIATION THERAPY SYSTEM
A medical image processing apparatus comprising: a first input interface configured to acquire a three-dimensional volume image of an object which is provided with at least one marker, the three-dimensional volume image being generated by imaging the object using a medical examination apparatus; a second input interface configured to acquire geometry information of an imaging apparatus which is used for imaging the object to generate a fluoroscopic image of the object; and a specific-setting-information generator configured to generate specific setting information based on the three-dimensional volume image and the geometry information, the specific setting information being used for setting of imaging for generating an image depicting the at least one marker or setting of image processing of the image depicting the at least one marker.
MEDICAL IMAGE PROCESSING DEVICE, TREATMENT SYSTEM, MEDICAL IMAGE PROCESSING METHOD, AND STORAGE MEDIUM
A medical image processing device according to an embodiment has a first image acquirer, a second image acquirer, a shifter, and a display controller. The first image acquirer acquires a first three-dimensional fluoroscopic image that is a three-dimensional fluoroscopic image of a patient captured in a patient treatment planning stage. The second image acquirer acquires a second three-dimensional fluoroscopic image that is a three-dimensional fluoroscopic image of the patient captured in a patient treatment stage. The shifter adds a predetermined amount to a photographing center position of the second three-dimensional fluoroscopic image to shift a display center position of the second three-dimensional fluoroscopic image. The display controller causes a display device to display a cross-sectional image of the second three-dimensional fluoroscopic image so that the display center position of the second three-dimensional fluoroscopic image is a center of a display region in a positioning stage of the patient treatment stage.
Method and system for X-ray image generation
A method of creating an image including retrieving three-dimensional image data of an anatomy, retrieving a model of a portion of the anatomy, associating the model with the three-dimensional image data such that the model defines a bounded volume within the three-dimensional image data corresponding to the portion of the anatomy, and creating a virtual radiograph of the portion of the anatomy. Creating the virtual radiograph includes casting a plurality of rays from an origin point through the bounded volume, sampling, for each ray, the bounded volume at a plurality of sampling steps along the ray, the sampling steps separated by a sampling distance, and calculating, for each ray, an accumulated attenuation value of the bounded volume along the ray based on the samples.
METHOD AND SYSTEM FOR X-RAY IMAGE GENERATION
A method of creating an image including retrieving three-dimensional image data of an anatomy, retrieving a model of a portion of the anatomy, associating the model with the three-dimensional image data such that the model defines a bounded volume within the three-dimensional image data corresponding to the portion of the anatomy, and creating a virtual radiograph of the portion of the anatomy. Creating the virtual radiograph includes casting a plurality of rays from an origin point through the bounded volume, sampling, for each ray, the bounded volume at a plurality of sampling steps along the ray, the sampling steps separated by a sampling distance, and calculating, for each ray, an accumulated attenuation value of the bounded volume along the ray based on the samples.
Method and system for x-ray image generation
A method for generating a virtual radiograph for display on a display device, including providing an image generation system having a processing circuit including a processor and a memory device, the image generation system coupled to the display device. The method further including retrieving three-dimensional image data of an anatomy stored in the memory and retrieving a three-dimensional bone model corresponding to a portion of the anatomy stored in the memory. The method further including associating the three-dimensional bone model with the three-dimensional image data such that the three-dimensional bone model defines first boundary containing a first bounded volume within the three-dimensional image data corresponding to the portion of the anatomy, and performing a volume ray casting process on the three-dimensional image data.
X-ray digital image correlation
A method of X-ray digital image correlation is provided. The method comprises aligning cameras of an X-ray imaging system, wherein the X-ray imaging system comprises two X-ray sources pointed at a target area at a stereo angle and two corresponding X-ray detectors behind the target area. The X-ray imaging system is tuned to determine power levels of the X-ray sources that maximize image contrast and signal-to-noise ratio. The system is calibrated to determine intrinsic and extrinsic stereoscopic imaging parameters. A specimen with a random contrast pattern comprising an X-ray attenuating material is placed in the target area. Stereoscopic X-ray images are taken of the specimen and processed according to the power levels of the X-ray sources to maximize image contrast and signal-to-noise ratio and remove background objects. Kinematic quantities are determined according to changes in the contrast pattern over a number of successive images.