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Gated tomographic imaging in ectomography using a dynamic heart phantom
KTH, School of Technology and Health (STH), Medical Engineering.ORCID iD: 0000-0001-5919-3554
KTH, School of Technology and Health (STH), Medical Engineering.
KTH, School of Technology and Health (STH), Medical Engineering.
KTH, School of Technology and Health (STH), Medical Engineering.
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2007 (English)In: Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE, IEEE , 2007, 3414-3417 p.Conference paper, Published paper (Refereed)
Abstract [en]

A new computer controlled dynamic heart phantom and the connection of an ECG unit to a tomographic gamma camera system, developed for ectomographic imaging, is presented. The phantom is used for validation of the camera. Measurements were performed to test the phantom as well as to study the feasibility of gated imaging in ectomography. The camera is intended for early diagnosis of myocardial and cerebral infarctions.

Place, publisher, year, edition, pages
IEEE , 2007. 3414-3417 p.
Series
IEEE Nuclear Science Symposium Conference Record, ISSN 1082-3654 ; 5
Keyword [en]
Radiology, Nuclear Medicine & Medical Imaging
National Category
Biomedical Laboratory Science/Technology
Identifiers
URN: urn:nbn:se:kth:diva-12060DOI: 10.1109/NSSMIC.2007.4436863ISI: 000257380402177Scopus ID: 2-s2.0-48349132721ISBN: 978-1-4244-0922-8 (print)OAI: oai:DiVA.org:kth-12060DiVA: diva2:300794
Conference
IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC; Honolulu, HI; 27 October 2007 through 3 November 2007
Note

QC 20120906

Available from: 2010-03-01 Created: 2010-03-01 Last updated: 2012-09-06Bibliographically approved
In thesis
1. Software Solutions for Nuclear Imaging Systems in Cardiology, Small Animal Research and Education
Open this publication in new window or tab >>Software Solutions for Nuclear Imaging Systems in Cardiology, Small Animal Research and Education
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The sensitivity for observing physiological processes makes nuclear imaging an important tool in medical diagnostics. Different types of nuclear imaging modalities, with emphasis on the software components and image reconstructions, are presented in this thesis:  the Cardiotom for myocardial heart studies at the Karolinska University Hospital, the small animal Positron Emission Tomograph (PET) scanners for research and the SPECT, PET, spiral CT and Cardiotom demonstrators for the Royal Institute of Technology medical imaging laboratory.

A modular and unified software platform has been developed for data representation, acquisition, visualization, reconstruction and presentation of the programs of the imaging devices mentioned above. The high performance 3D ML-EM and OS-EM iterative image reconstruction methods are implemented both on Cardiotom and miniPET scanners.

As a result, the in-slice resolution of the first two prototypes of the Cardiotom today is the same as the formerly used filtered back-projection, however the in-depth resolution is considerably increased. Another improvement due to the new software is the shorter time that is required for data acquisition and image reconstruction. The new electronics with the newly developed software ensure images for medical diagnosis within 10 minutes from the start ofthe examination. The first system from the standardized production of the Cardiotom cameras is in the test phase.

The performance parameters (sensitivity, spatial and energy resolution, coincidence time resolution) of the full ring mini PET camera are comparable to other small animal PETsystems.

Place, publisher, year, edition, pages
Stockholm: KTH, 2010. 75 p.
Series
Trita-STH : report, ISSN 1653-3836 ; 2010:1
National Category
Biomedical Laboratory Science/Technology
Identifiers
urn:nbn:se:kth:diva-12069 (URN)
Public defence
2010-03-19, KTH-Flemingsberg, Sal 3-221, Alfred Nobels Allé 10, Stockholm, 09:15 (English)
Opponent
Supervisors
Note
QC20100721Available from: 2010-03-02 Created: 2010-03-01 Last updated: 2010-07-21Bibliographically approved

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Valastyán, Iván

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