The present disclosure provides an imaging system and method for nuclear medicine imaging. The imaging system may include a detector and a collimator. The detector may be configured to detect photons. The collimator may have at least two sets of pinholes. The at least two sets of pinholes may include a first set of first pinholes and a second set of second pinholes. Each second pinhole of the second set of second pinholes may be equipped with a filter configured to filter the photons.

The present disclosure relates to methods of administering [.sup.18F]-FACBC. The present disclosure also relates to use of [.sup.18F]-FACBC in methods for imaging, diagnosing, and monitoring of brain lesions.

A method and system for determining a PET image of the scan volume based on one or more PET sub-images is provided. The method may include determining a scan volume of a subject supported by a scan table; dividing the scan volume into one or more scan regions; for each scan region of the one or more scan regions, determining whether there is a physiological motion in the scan region; generating, based on a result of the determination, a PET sub-image of the scan region based on first PET data of the scan region acquired in a first mode or based, at least in part, on second PET data of the scan region acquired in a second mode; and generating a PET image of the scan volume based on one or more PET sub-images.

A method for providing corrected x-ray images of a recording object and a correspondingly configured x-ray system are provided. In the method, a first x-ray image recorded prior to introducing a contrast agent and a second x-ray image of the recording object recorded after introducing the contrast agent are provided. A ring correction for eliminating ring artifacts is applied to the first x-ray image and the second x-ray image in each case. In order to provide corrected x-ray images with an improved image quality, provision is made with the ring correction of the first x-ray image for a ring image, which contains artifact data extracted from the first x-ray image, to be obtained and stored and for the ring correction of the second x-ray image for the ring image obtained with the ring correction of the first x-ray image to be used.

A method is disclosed for correcting the mismatch between computed tomography (CT) scan and positron emission tomography (PET) scan modalities caused by patient respiration by selecting PET image slices aligned with the phase and amplitude in which the CT was acquired PET image slices so they are aligned with the phase and amplitude in which the CT scan was acquired.

A medical system includes an instrument, a display system, and a processing unit. The instrument includes an instrument shape sensor. The processing unit includes one or more processors. The processing unit is configured to, receive an anatomic model of a patient anatomy, receive shape sensor data from the instrument shape sensor while the instrument is positioned within the patient anatomy and registered to the anatomic model, determine a preferred fluoroscopic image plane for display on the display system based on the received shape sensor data and the area of interest, and provide an indication on the display system to guide positioning of a fluoroscopy system to obtain a fluoroscopic image in the preferred fluoroscopic image plane. An area of interest is identified in the anatomic model.

The present disclosure provides a system and method for image generation. The method may include obtaining a first image of a first modality representing a first region of a subject. The method may further include determining a second image of a second modality representing a second region of the subject based on the first image. The second region may include at least part of the first region of the subject. A slice direction of the first image may be the same as a slice direction of the second image. The method may further include generating a fused image by fusing the first image and the second image.

The present disclosure provides a system and method for medical imaging. The method may include obtaining a preliminary image and scanning data of a subject acquired using a scanner. The method may also include determining a regularization parameter for a regularization item of an objective function based at least in part on the scanning data, wherein the regularization parameter includes at least two of a first component characterizing quality of the scanning data, a second component characterizing the scanner, or a third component characterizing a feature of the subject. The method may further include generating an image of the subject by reconstructing the preliminary image based on the objective function.

A two-dimensional image acquisition unit acquires a plurality of two-dimensional images generated from a three-dimensional image of a patient in a case where an observation target is viewed from a plurality of different viewpoints, and a surface data acquisition unit acquires surface data of each of a plurality of structures on the patient from the three-dimensional image. A composite image generation unit generates a composite image in which a composite target image generated from the surface data and the two-dimensional image are composed, and a display switching control unit receives an operation of displaying or non-displaying any of the structures and performs display by switching between the composite image of the composite target image and the two-dimensional image corresponding to the structure to be displayed and the two-dimensional image of the structure to be non-displayed.

Techniques for composite imagery rendering in a diminished reality environment for medical diagnosis are provided. In one aspect, a method for composite image rendering in a diminished reality environment for medical diagnosis includes: analyzing medical imagery scans for a patient visiting a medical office for consultation with a physician for a diagnosis; obtaining real-time images of the patient who is physically located in the medical office; creating a composite image of the patient comprising relevant portions of the medical imagery scans combined with the real-time images of the patient; selecting one or more portions of the composite image to diminish for the diagnosis; and rendering the composite image in a diminished reality environment.