List-mode reconstruction in 2D strip PET

نویسندگان

  • Piotr Bialas
  • Jakub Kowal
  • Adam Strzelecki
  • Tomasz Bednarski
  • Eryk Czerwinski
  • Krzysztof Giergiel
  • Lukasz Kaplon
  • Andrzej Kochanowski
  • Grzegorz Korcyl
  • Pawel Kowalski
  • Tomasz Kozik
  • Wojciech Krzemien
  • Marcin Molenda
  • Ines Moskal
  • Pawel Moskal
  • Szymon Niedzwiecki
  • Marek Palka
  • Monika Pawlik-Niedzwiecka
  • Lech Raczynski
  • Zbigniew Rudy
  • Piotr Salabura
  • Neha Gupta-Sharma
  • Michal Silarski
  • Artur Slomski
  • Jerzy Smyrski
  • Konrad Szymanski
  • Wojciech Wislicki
  • Piotr Witkowski
  • Marcin Zielinski
  • Natalia Zon
چکیده

Using a theory of list-mode maximum likelihood expectation-maximization (MLEM) algorithm, in this contribution, we present a derivation of the system response kernel for a novel positron emission tomography (PET) detector based on plastic scintillators.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Projector Model for Efficient List-Mode Reconstruction in PET Scanners with Planar Detectors

Abstrcwt-We have developed a new projector model speciflcally tailored for fast list-mode tomographic reconstructions in Positrón emission tomography (PET) scanners with parallel planar detectors. The model provides an accurate estimation of the probability distribution of coincidence events defined by pairs of scintillating crystals. This distribution is parameterized with 2D elliptical Gaussi...

متن کامل

List-Mode Affine Rebinning for Respiratory Motion Correction in PET Cardiac Imaging

Positron Emission Tomography (PET) is an established functional imaging modality but its practical deployment is hampered by motion artefacts. This paper proposes a method for correcting reconstructed PET images through a list-mode rebinning process. Respiratory motion is compensated for by applying 2D affine transforms to the respiratory gated sequence of line-ofresponse events prior to image ...

متن کامل

Fully 3-D List-mode Positron Emission Tomography Image Reconstruction on a Multi-GPU Cluster

List-mode processing is an efficient way of dealing with the sparse nature of PET data sets, and is the processing method of choice for time-of-flight (ToF) PET. We present a novel method of computing line projection operations required for list-mode ordered subsets expectation maximization (OSEM) for fully 3-D PET image reconstruction on a graphics processing unit (GPU) using the compute unifi...

متن کامل

Initial evaluation of a practical PET respiratory motion correction method in clinical simultaneous PET/MRI

University College London, London, UK Respiratory motion during PET acquisitions can cause image artefacts, with sharpness and tracer quantification adversely affected due to count ‘smearing’. Motion correction by registration of PET gates becomes increasingly difficult with shorter scan times and less counts. The advent of simultaneous PET/MRI scanners allows the use of high spatial resolution...

متن کامل

Performance of list mode data acquisition with ECAT EXACT HR and ECAT EXACT HR+ positron emission scanners.

Recently, list mode (event-by-event) data acquisition with positron emission tomography (PET) has been widely noticed because list mode acquisition is superior to conventional frame mode data acquisition in terms of (1) higher efficiency of data storage, (2) higher temporal resolution, and (3) higher flexibility of data manipulation. The aim of this study is to investigate the performance of li...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Bio-Algorithms and Med-Systems

دوره 10  شماره 

صفحات  -

تاریخ انتشار 2014