J 2018

Time-Efficient Perfusion Imaging Using DCE- and DSC-MRI

MACÍČEK, Ondřej, Radovan JIŘÍK, Jan MIKULKA, Michal BARTOŠ, Andrea ŠPRLÁKOVÁ-PUKOVÁ et. al.

Basic information

Original name

Time-Efficient Perfusion Imaging Using DCE- and DSC-MRI

Authors

MACÍČEK, Ondřej (203 Czech Republic, guarantor), Radovan JIŘÍK (203 Czech Republic), Jan MIKULKA (203 Czech Republic), Michal BARTOŠ (203 Czech Republic), Andrea ŠPRLÁKOVÁ-PUKOVÁ (203 Czech Republic, belonging to the institution), Miloš KEŘKOVSKÝ (203 Czech Republic, belonging to the institution), Zenon STARČUK (203 Czech Republic), Karel BARTUŠEK (203 Czech Republic) and Torfinn TAXT (578 Norway)

Edition

Measurement Science Review, WARSAW, UM SAV, 2018, 1335-8871

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30224 Radiology, nuclear medicine and medical imaging

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.122

RIV identification code

RIV/00216224:14110/18:00105311

Organization unit

Faculty of Medicine

UT WoS

000452196100006

Keywords in English

Perfusion imaging; contrast agents; brain tumors; DCE-MRI; DSC-MRI

Tags

Tags

International impact, Reviewed
Změněno: 11/2/2019 14:27, Soňa Böhmová

Abstract

V originále

Dynamic contrast enhanced MRI (DCE-MRI) and dynamic susceptibility contrast MRI (DSC-MRI) are perfusion imaging techniques used mainly for clinical and preclinical measurement of vessel permeability and capillary blood flow, respectively. It is advantageous to apply both methods to exploit their complementary information about the perfusion status of the tissue. We propose a novel acquisition method that combines advantages of the current simultaneous and sequential acquisition. The proposed method consists of a DCE-MRI acquisition interrupted by DSC-MRI acquisition. A new method for processing of the DCE-MRI data is proposed which takes the interleaved acquisition into account. Analysis of both the DCE- and DSC-MRI data is reformulated so that they are approximated by the same pharmacokinetic model (constrained distributed capillary adiabatic tissue homogeneity model). This provides a straightforward evaluation of the methodology as some of the estimated DCE- and DSC-MRI perfusion parameters should be identical. Evaluation on synthetic data showed an acceptable precision and no apparent bias introduced by the interleaved character of the DCE-MRI acquisition. Intravascular perfusion parameters obtained from clinical glioma data showed a fairly high correlation of blood flow estimates from DCE- and DSC-MRI, however, an unknown scaling factor was still present mainly because of the tissue-specific r(2)* relaxivity. The results show validity of the proposed acquisition method. They also indicate that simultaneous processing of both DCE- and DSC-MRI data with joint estimation of some perfusion parameters (included in both DCE- and DSC-MRI) might be possible to increase the reliability of the DCE- and DSC-MRI methods alone.

Links

CZ.02.1.01/0.0/0.0/16_013/0001775, interní kód MU
(CEP code: EF16_013/0001775)
Name: Modernizace a podpora výzkumných aktivit národní infrastruktury pro biologické a medicínské zobrazování Czech-BioImaging
Investor: Ministry of Education, Youth and Sports of the CR, Priority axis 1: Strengthening capacities for high-quality research
LM2015062, research and development project
Name: Národní infrastruktura pro biologické a medicínské zobrazování
Investor: Ministry of Education, Youth and Sports of the CR