[go: up one dir, main page]

Hu et al., 2024 - Google Patents

Application of geometric shape‐based CT field‐of‐view extension algorithms in an all‐digital positron emission tomography/computed tomography system

Hu et al., 2024

Document ID
5681034348317510341
Author
Hu T
Li B
Yang J
Zhang B
Fang L
Liu Y
Xiao P
Xie Q
Publication year
Publication venue
Medical Physics

External Links

Snippet

Background Computed tomography (CT)‐based positron emission tomography (PET) attenuation correction (AC) is a commonly used method in PET AC. However, the CT truncation caused by the subject's limbs outside the CT field‐of‐view (FOV) leads to errors in …
Continue reading at aapm.onlinelibrary.wiley.com (other versions)

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/005—Specific pre-processing for tomographic reconstruction, e.g. calibration, source positioning, rebinning, scatter correction, retrospective gating
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/003—Reconstruction from projections, e.g. tomography
    • G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computerised tomographs
    • A61B6/032—Transmission computed tomography [CT]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
    • G01T1/2914—Measurement of spatial distribution of radiation
    • G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2211/00—Image generation
    • G06T2211/40—Computed tomography
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10084—Hybrid tomography; Concurrent acquisition with multiple different tomographic modalities
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10104—Positron emission tomography [PET]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06F—ELECTRICAL DIGITAL DATA PROCESSING

Similar Documents

Publication Publication Date Title
Li et al. Model‐based image reconstruction for four‐dimensional PET
Tong et al. Image reconstruction for PET/CT scanners: past achievements and future challenges
Niu et al. Scatter correction for full‐fan volumetric CT using a stationary beam blocker in a single full scan
Tsoumpas et al. Study of direct and indirect parametric estimation methods of linear models in dynamic positron emission tomography
Chornoboy et al. An evaluation of maximum likelihood reconstruction for SPECT
Sun et al. An iterative projection‐based motion estimation and compensation scheme for head x‐ray CT
Sun et al. Deep learning-based denoising in projection-domain and reconstruction-domain for low-dose myocardial perfusion SPECT
Liu et al. Respiratory motion correction for quantitative PET/CT using all detected events with internal—external motion correlation
Rezaei et al. Joint reconstruction of activity and attenuation in time-of-flight PET: a quantitative analysis
Zhang et al. Deep learning‐based motion compensation for four‐dimensional cone‐beam computed tomography (4D‐CBCT) reconstruction
Sanaat et al. Deep‐TOF‐PET: Deep learning‐guided generation of time‐of‐flight from non‐TOF brain PET images in the image and projection domains
Petrongolo et al. A general framework of noise suppression in material decomposition for dual‐energy CT
Ao et al. Improved dosimetry for targeted radionuclide therapy using nonrigid registration on sequential SPECT images
Chan et al. Event‐by‐event respiratory motion correction for PET with 3D internal‐1D external motion correlation
Chan et al. The impact of system matrix dimension on small FOV SPECT reconstruction with truncated projections
Qi et al. Extraction of tumor motion trajectories using PICCS‐4DCBCT: a validation study
Jiang et al. Fast four‐dimensional cone‐beam computed tomography reconstruction using deformable convolutional networks
Tunissen et al. Development, validation, and simplification of a scanner‐specific CT simulator
Fan et al. Image‐domain shading correction for cone‐beam CT without prior patient information
Valiollahzadeh et al. Using compressive sensing to recover images from PET scanners with partial detector rings
Chang et al. Joint correction of respiratory motion artifact and partial volume effect in lung/thoracic PET/CT imaging
Yu et al. Improved accuracy of the biodistribution and internal radiation dosimetry of 13N‐ammonia using a total‐body PET/CT scanner
Wells et al. Feasibility of attenuation map alignment in pinhole cardiac SPECT using exponential data consistency conditions
Bhusal et al. Performance analysis of a high‐sensitivity multi‐pinhole cardiac SPECT system with hemi‐ellipsoid detectors
Li et al. Effective noise‐suppressed and artifact‐reduced reconstruction of SPECT data using a preconditioned alternating projection algorithm