A61B6/54

Methods and systems for x-ray tube conditioning

Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, x-ray may be generated in an x-ray tube of a radiation source prior to a diagnostic scan to warmup the x-ray tube to a desired temperature for the diagnostic scan. The power delivered to the x-ray tube during warmup may be adjusted in a closed loop system based on an initial temperature of the x-ray tube and the desired temperature for the diagnostic scan. During tube warmup, by placing a blocking plate coupled to a collimator blade in a path of the x-ray beam, the x-ray beam may be blocked from exiting a collimator.

SYSTEM AND METHOD FOR AUTOMATED PROJECTION RADIOGRAPHY
20230027305 · 2023-01-26 ·

Radiographic imaging identifies a subject anatomy for radiographic image content and automatically identifies a subject’s position from one or more sensor signals. The imaging apparatus issues re-positioning guidance signals for re-positioning the patient. Signals are generated to set an imaging exposure technique and component positions according to data associated with the subject anatomy. A radiographic image of the subject is acquired according to the component and technique signals by automatically energizing the x-ray source. The acquired radiographic image is analyzed using trained logic to determine clinical diagnostic suitability of the image and to identify one or more abnormalities in the subject anatomy.

SYSTEMS AND METHODS FOR IMMEDIATE IMAGE QUALITY FEEDBACK

An apparatus (1) for providing image quality feedback during a medical imaging examination includes at least one electronic processor (20) programmed to: receive a live video feed (17) of a display (6) of an imaging device controller (4) of an imaging device (2) performing the medical imaging examination; extract a preview image (12) from the live video feed; perform an image analysis (38) on the extracted preview image to determine whether the extracted preview image satisfies an alert criterion; and output an alert (30) when the extracted preview image satisfies the alert criterion as determined by the image analysis.

METHOD FOR MOVING A PATIENT COUCH

The method includes: providing a body value of a patient; setting an operating parameter of a drive chain via a control unit configured to control the drive chain as a function of the body value in such a manner that a speed value of the patient couch is increased and a rocking of the patient couch during the movement of the patient couch is at least partially suppressed; and moving the patient couch via the drive chain in accordance with the increased speed value to perform the medical imaging.

SPARSE BACKGROUND MEASUREMENT AND CORRECTION FOR IMPROVING IMAGING

Disclosed herein is an imaging system including a first x-ray source configured to produce first x-ray photons in a first energy range suitable for imaging, project the first x-ray photons onto an area designated for imaging, a rotatable gantry configured to rotate the first x-ray source such that the first x-ray source traverses an angular path, and a data processor having an analytical portion. The analytical portion is configured to collect first data relating to the transmission of the first x-ray photons through the area designated for imaging at a set of image-collection angles along the angular path, collect background data at a set of background-collection angles along the angular path, wherein the system acquires more than one image of the designated area for imaging between background angles. The analytical portion is also configured to remove errors in the first data using the background data, and generate a corrected image based on the removal of errors in the first data.

Fast 3D Radiography with Multiple Pulsed X-ray Sources by Deflecting Tube Electron Beam using Electro-Magnetic Field
20230225693 · 2023-07-20 ·

An X-ray imaging system using multiple puked X-ray sources to perform highly efficient and ultrafast 3D radiography is presented. There are multiple puked X-ray sources mounted on a structure in motion to form an array of sources. The multiple X-ray sources move simultaneously relative to an object on a pre-defined arc track at a constant speed as a group. Electron beam inside each individual X-ray tube is deflected by magnetic or electrical field to move focal spot a small distance. When focal spot of an X-ray tube beam has a speed that is equal to group speed but with opposite moving direction, the X-ray source and X-ray flat panel detector are activated through an external exposure control unit so that source tube stay momentarily standstill equivalently. 3D scan can cover much wider sweep angle in much shorter time and image analysis can also be done in real-time.

Control device, radiography system, medical imaging system, control method, and control program

A mammography apparatus includes a compression control unit that, in a case in which continuous imaging that captures a radiographic image of the breast compressed by a compression plate and then captures an ultrasound image of the breast while maintaining the compressed state is performed, performs control to set a force of the compression plate compressing the breast to a first force in the capture of the radiographic image and to change the force of the compression plate compressing the breast from the first force to a second force lower than the first force in the capture of the ultrasound image.

DUTY CYCLE CORRECTION CIRCUIT AND APPLICATIONS THEREOF
20230016594 · 2023-01-19 · ·

A duty cycle correction circuit comprises a buffer stage which outputs a digital output signal having a duty cycle. At least one buffer of the buffer stage is configured to exhibit a controllable tripping threshold. A control loop circuit comprises a sensing circuit including a switched capacitor that is reset to a reference potential and time-integrates the digital output signal. A comparator is configured to compare the potential at a terminal of the capacitor with the reference potential. A register stores a correction value determined by the comparator to adjust the tripping threshold of the at least one buffer.

X-ray image feedback for DXA scan FOV adjustment

A system for performing a scan of internal structures of an object/patient is provided. The system includes a radiation source operative to emit a radiation beam, a radiation detector operative to receive the radiation beam and generate an output signal based at least in part on the received radiation beam, and a controller in electronic communication with the radiation source and the radiation detector and operative to generate at least one image of the object/patient. The controller is further operative to determine an offset of the at least one image relative to an image reference and to employ the offset to automatically align the at least one image with the image reference without the need for stopping the operation of the radiation source and detector to reposition the object/patient being scanned.

IMAGING SUPPORT DEVICE, AND OPERATION METHOD AND OPERATION PROGRAM FOR THE SAME
20230015883 · 2023-01-19 ·

An imaging support device used in a radiography apparatus including a radiation source and a radiation image detector that detects a radiation image of a subject on the basis of radiation emitted from the radiation source and transmitted through the subject, includes at least one processor. The processor executes a determination process of determining a necessity of and a reason for recapturing an acquired new radiation image by using a trained model that has learned a relationship between a radiation image acquired in the past and the necessity of and the reason for reimaging, a corrective measure derivation process of, in a case where it is determined that reimaging is necessary, deriving a corrective measure for correcting a position or an orientation of the subject on the basis of the reason for determining that reimaging is necessary, and a presentation process of presenting the corrective measure derived in the corrective measure derivation process.