J 2019

Blind deconvolution estimation of an arterial input function for small animal DCE-MRI

JIRIK, Radovan, Torfinn TAXT, Ondrej MACICEK, Michal BARTOS, Jiri KRATOCHVILA et. al.

Basic information

Original name

Blind deconvolution estimation of an arterial input function for small animal DCE-MRI

Authors

JIRIK, Radovan (203 Czech Republic, guarantor), Torfinn TAXT (578 Norway), Ondrej MACICEK (203 Czech Republic), Michal BARTOS (203 Czech Republic), Jiri KRATOCHVILA (203 Czech Republic), Karel SOUČEK (203 Czech Republic, belonging to the institution), Eva DRAZANOVA (203 Czech Republic), Lucie KRATKA (203 Czech Republic), Aleš HAMPL (203 Czech Republic, belonging to the institution) and Zenon, Jr. STARCUK (203 Czech Republic)

Edition

MAGNETIC RESONANCE IMAGING, NEW YORK, ELSEVIER SCIENCE INC, 2019, 0730-725X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30224 Radiology, nuclear medicine and medical imaging

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.053

RIV identification code

RIV/00216224:14110/19:00112960

Organization unit

Faculty of Medicine

UT WoS

000481725200006

Keywords in English

DCE-MRI; Blind deconvolution; Arterial input function

Tags

International impact, Reviewed
Změněno: 1/4/2020 14:15, Mgr. Marie Šípková, DiS.

Abstract

V originále

Purpose: One of the main obstacles for reliable quantitative dynamic contrast-enhanced (DCE) MRI is the need for accurate knowledge of the arterial input function (AIF). This is a special challenge for preclinical small animal applications where it is very difficult to measure the AIF without partial volume and flow artifacts. Furthermore, using advanced pharmacokinetic models (allowing estimation of blood flow and permeability surface area product in addition to the classical perfusion parameters) poses stricter requirements on the accuracy and precision of AIF estimation. This paper addresses small animal DCE-MRI with advanced pharmacokinetic models and presents a method for estimation of the AIF based on blind deconvolution. Methods: A parametric AIF model designed for small animal physiology and use of advanced pharmacokinetic models is proposed. The parameters of the AIF are estimated using multichannel blind deconvolution. Results: Evaluation on simulated data show that for realistic signal to noise ratios blind deconvolution AIF estimation leads to comparable results as the use of the true AIF. Evaluation on real data based on DCE-MRI with two contrast agents of different molecular weights showed a consistence with the known effects of the molecular weight. Conclusion: Multi-channel blind deconvolution using the proposed AIF model specific for small animal DCE-MRI provides reliable perfusion parameter estimates under realistic signal to noise conditions.

Links

EE2.3.20.0185, research and development project
Name: Centrum analýz a modelování tkání a orgánů
EF16_013/0001775, research and development project
Name: Modernizace a podpora výzkumných aktivit národní infrastruktury pro biologické a medicínské zobrazování Czech-BioImaging