US 9,794,521 B2 · Apparatus and method of resampling event data for quantitative improvement of pet image

Abstract

Provided are apparatuses and methods of resampling event data for quantitative improvement of a PET image, which acquire a quantitatively-improved new PET image by analyzing a storage format of list data prior to conversion into the PET image and nonparametrically resampling event data from the list data based on the analysis results to improve noise and statistical characteristics thereof. The quantitatively improved new PET image may be acquired by analyzing a storage format of list data constituting the PET image and nonparametrically resampling event data to improve noise and statistical characteristics thereof.

Claims18

Dependent claims

An apparatus for resampling event data for quantitative improvement of a positron emission tomography (PET) image, the apparatus comprising:

a data reading unit reading list data from a PET scanner;
a packet sampling unit analyzing the read list data on a bit basis and sampling packet data having a length of 48 bits and a first bit of ‘0’;
a header sampling unit sampling the first 8 bits of a header from the sampled packet data;
a type classifying unit analyzing the last 4 bits of the sampled header to determine a type of each piece of packet data and sampling packet data of an event type from the sampled packet data;
and
a reconstructing unit reconstructing the packet data by increasing a data amount thereof by replicating the sampled packet data of the event type.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/578,977Filed 22 Dec 2014

Priority

KR 10-2013-016762230 Dec 2013

Published

US 2015/0186424 A12 Jul 2015

Granted

17 Oct 2017

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

G06T 12/10
Tomographic reconstruction from projections: image preprocessing, e.g. calibration, positioning of sources or scatter correction
G16H 30/20
ICT specially adapted for the handling or processing of medical images: for handling medical images, e.g. DICOM, HL7 or PACS
H04N 1/32128
Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title: attached to the image data, e.g. file…
H04N 7/18
Television systems: closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Apparatus and method of resampling event data for quantitative improvement of pet image

Life of this patent

Apparatus and method of resampling event data for quantitative improvement of pet image

Life of this patent

Abstract

Claims18