The method may include obtaining a first set of imaging data affording a sagittal view relating to a subject and a first couch supporting the subject. The first couch may have a plurality of first positions reflected in the first set of imaging data as a first conformation. The method may also include determining a displacement field associated with a first set of imaging data with respect to the reference conformation based on the first conformation and a reference conformation. The method may further include adjusting the first set of imaging data with respect to the reference conformation based on the displacement field. In some embodiments, the method may include obtaining an image of the subject with respect to the reference conformation based on the adjusted first set of imaging data.

A method may include acquiring a first image including a target point and a first reference point, the target point corresponding to at least one part of a subject, the first reference point corresponding to a first marker disposed on the couch of the medical device; determining a first spatial position of the first marker, the first spatial position corresponding to a first working position of the couch; determining a first spatial position of the at least one part of the subject based on the first image and the first spatial position of the first marker; determining a second spatial position of the first marker, the second spatial position corresponding to a second working position of the couch; determining a second spatial position of the at least one part of the subject based on the second spatial position of the first marker and the first spatial position of the at least one part of the subject. In some embodiments, the method may further include adjusting the second working position of the couch based on the second spatial position of the at least one part of the subject.

One or more example embodiments provides a method for establishing compensation information to compensate for a bending of a couch of an object table, in particular patient table, of a computed tomography facility under the weight of an object to be recorded, in particular of a patient, wherein a target region image dataset of a target region of the examination object is recorded with the computed tomography facility at a recording position of the couch, wherein at least one marker visible in x-ray imaging is provided on or in the couch and a three-dimensional reference dataset of the marker is provided for a non-loaded couch, wherein the compensation information is established from a comparison between the reference dataset and the target region image dataset.

A method and system for using in a two-modality apparatus. The two-modality apparatus comprises a couch with a table top, a first modality unit and a second modality unit. A second image of a target portion of an object when the table top is at a second working position of the second modality unit may be acquired. A second sag of the table top at a second measurement point of the table top according to the second image may be determined based on the image. A difference between a first sag of the table top at a first measurement point of the table top and the second sag may be estimated based on the second sag and standard data. The standard data provides a relationship relating to a sag of the table top positioned between the first modality unit and second modality unit.

According to some aspects, an x-ray apparatus for imaging and/or radiation therapy is provided, the x-ray apparatus comprises an electron source capable of generating electrons, at least one first target arranged to receive electrons from the electron source, the at least one first target comprising material that, in response to being irradiated by the electrons, emits broad spectrum x-ray radiation, at least one second target arranged to receive at least some of the broad spectrum x-ray radiation, the at least one second target comprising material that, in response to irradiation by broad spectrum x-ray radiation from the first target, emits monochromatic x-ray radiation, and at least one detector positioned to detect at least some of the monochromatic x-ray radiation emitted from the at least one second target. According to some aspects, a relatively low cost, relatively small footprint x-ray apparatus for generating monochromatic x-ray radiation suitable for medical/clinical purposes and appropriate for use in existing medical facilities such as hospitals and/or small clinical settings is provided.

A subject support includes a fixed portion and a moveable portion coupled to the fixed portion and configured to move along at least one axis relative to the fixed portion, and the coupling includes one or more points of friction that move during movement of the moveable portion and which wear due to at least movement by the moveable portion. The moveable portion receives and supports at least one of an object or a subject during an imaging procedure with an imaging device. One or more inertial measurement units (IMUs) are affixed to or embedded in the moveable portion that directly measure acceleration of translation of the moveable portion along one or more axes.

The method may include obtaining a first set of imaging data affording a sagittal view relating to a subject and a first couch supporting the subject. The first couch may have a plurality of first positions reflected in the first set of imaging data as a first conformation. The method may also include determining a displacement field associated with a first set of imaging data with respect to the reference conformation based on the first conformation and a reference conformation. The method may further include adjusting the first set of imaging data with respect to the reference conformation based on the displacement field. In some embodiments, the method may include obtaining an image of the subject with respect to the reference conformation based on the adjusted first set of imaging data.

A device (10) for a patient to lie on during a medical imaging procedure includes a main body (12). A matrix of pressure sensors (16) disposed on a top surface (14) of the main body are configured to continuously measure pressure across the top surface. At least one electronic processor (22) is operatively connected to read the pressure sensors. A non-transitory storage medium stores instructions readable and executable by the at least one electronic processor to use the matrix of pressure sensors to perform at least one of: a sag estimation operation (200); a motion estimation operation (300); and a respiratory monitoring operation (400).

A method for determining a deformation measurement of a couch in a medical procedure may include determining a first deformation measurement of the couch at a reference point, the first deformation measurement corresponding to a first working position of the couch. The method may also include determining a second deformation measurement of the couch at the reference point, the second deformation measurement corresponding to a second working position of the couch. The method may further include determining a difference between the first deformation measurement and the second deformation measurement and causing an adjustment of one of the first working position and the second working position of the couch based on the difference between the first deformation measurement and the second deformation measurement.

Methods and systems are provided for generation and storage of body contour profiles during an imaging procedure. In one embodiment, an imaging system may include a plurality of contour sensors installed along one or more rings mounted on a gantry of the imaging device along a perimeter of a bore of the gantry. A body contour profile of a subject may be generated and saved prior to and during the scan. A visualization of the body contour profile may be used by an operator of the imaging system to adjust scan parameters such as detector positions during the scan. In this way, a real-time visualization of a body contour of a subject may be used by the operator to control the imaging procedure and generate improved medical images.