A medical image processing apparatus comprising: a setting unit configured to set a plurality of candidate regions on a medical image as candidates of a region of interest to be set on the medical image; an analysis unit configured to execute quantitative analysis concerning a composition of an object for each of the plurality of candidate regions; and an output unit configured to output a plurality of analysis results and the plurality of candidate regions in association with each other.

The present disclosure provides methods and devices for determining liver segments in a medical image. The methods may be implemented on the devices. The method may include: obtaining a scan image; obtaining a segmentation protocol; obtaining segmentation information associated with the scan image; determining one or more marked points based on the segmentation information and the segmentation protocol; determining one or more segmentation surfaces based on the one or more marked points; and determining a segmentation result of at least part of a liver in the scan image based on the one or more segmentation surfaces.

An X-ray apparatus and patient instruction system for easily instructing patients through an X-ray procedure in a variety of languages includes an X-ray apparatus, a computer, and a controller. The X-ray apparatus comprises an X-ray generator coupled within an X-ray housing to create a digital X-ray image. An X-ray CPU and a speaker are coupled within the X-ray housing. The computer comprises a computer CPU coupled within the computer housing. The computer CPU is in operational communication with the X-ray CPU stores a plurality of audio recordings of X-ray procedure instructions to play through the speaker. A computer display shows the digital X-ray images from the X-ray generator. The controller comprises a control button coupled to the controller handle to operate the speaker and the X-ray generator.

Various methods and systems are provided for x-ray imaging. In one embodiment, a method comprises acquiring, with an x-ray detector tilted at an angle with respect to an x-ray source, an x-ray image, calculating the angle from the x-ray image, generating a corrected x-ray image based on the calculated angle, and displaying the corrected x-ray image. In this way, tilt artifacts caused by the x-ray detector being tilted with respect to the x-ray source may be removed from an x-ray image.

The invention relates to off-center detector X-ray tomography reconstruction of an image of an object on the basis of projection data acquired during a rotation of an X-ray source and the off-center detector around the object in two rotational passes of less than 360°, wherein a focus point of the X-ray beam travels along largely overlapping arcs (401, 402) in the two rotational passes, the off-center detector being positioned asymmetrically with respect to a central of the X-ray beam and a direction of a detector offset being reversed between the passes. According to the invention, redundancy weighting of the projection data with respect to a redundant acquisition of projection values during each of the rotational passes is made using a redundancy weighting function determined on the basis of a union of the arcs (401, 402).

A system and a method are disclosed that allow for generation of a model or reconstruction of a model of a subject based upon acquired image data. The image data can be acquired in a substantially mobile system that can be moved relative to a subject to allow for image acquisition from a plurality of orientations relative to the subject. The plurality of orientations can include a first and final orientation and a predetermined path along which an image data collector or detector can move to acquire an appropriate image data set to allow for the model of construction.

A positioning support apparatus includes a hardware processor. The hardware processor obtains a radiographic image of a subject taken through a radiography. Based on the obtained radiographic image, the hardware processor detects a relative positional relationship between the subject and at least one of a radiation detector and a radiation source, the positional relationship being at a time when the radiographic image is taken. The hardware processor receives a change input for simulating a change of a position of the at least one of the radiation detector and the radiation source. Based on the detected positional relationship and the received change input, the hardware processor generates a simulation-reflected image that is an image of the subject reflecting the change of the position of the at least one of the radiation detector and the radiation source. The hardware processor outputs the generated simulation-reflected image.

Method and/or apparatus embodiments for 3-D cephalometric analysis of a patient according to the application can display reconstructed volume image data from a computed tomographic scan of a patient's head including segmented dentition elements having an initial arrangement from one or more 2D/3D views; can compute and display a plurality of cephalometric parameters for the patient according to the reconstructed volume image data; then use the patient specific cephalometric parameters and population biometry data, to identify one or more maxillofacial/dental abnormalities; and compose patient specific treatment plans to correct selected dentition abnormalities using maxillofacial/dental structure, which can be composed in a final tooth arrangement in a final virtual CT volume. One or more aligners can be generated to incrementally move dentition from the initial arrangement to the final tooth arrangement.

A computer device, obtains a mammographic image of a unilateral breast. The mammographic image includes a cranial-caudal (CC)-position mammographic image and a mediolateral-oblique (MLO)-position mammographic image. The computer device invokes a breast detection model to perform a prediction of a condition of the unilateral breast according to the CC-position mammographic image and the MLO-position mammographic image. The device obtains a prediction result of the unilateral breast, and generates and outputs a detection report that includes the prediction result.

A radiation dose received by a patient from a radiation therapy system can be verified by acquiring a cine stream of image frames from an electronic portal imaging device (EPID) that is arranged to detect radiation exiting the patient during irradiation. The cine stream of EPID image frames can be processed in real-time to form exit images providing absolute dose measurements at the EPID (dose-to-water values), which is representative of the characteristics of the radiation received by the patient. Compliance with predetermined characteristics for the field can be determined during treatment by periodically comparing the absolute dose measurements with the predetermined characteristics, which can include a predicted total dose in the field after full treatment and/or a complete irradiation area outline (CIAO). The system operator can be alerted or the irradiation automatically stopped when non-compliance is detected.