Quantification of intravoxel velocity standard deviation and turbulence intensity by generalizing phase-contrast MRI

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Fältnamn	Indikatorer	Metadata
000		04453naa a2200553 4500
001		oai:DiVA.org:liu-37249
003		SwePub
008		091010s2006 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-372492 URI
024	7	a https://doi.org/10.1002/mrm.210222 DOI
040		a (SwePub)liu
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Dyverfeldt, Petter,d 1980-u Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Hälsouniversitetet,Mekanisk värmeteori och strömningslära,Tekniska högskolan4 aut0 (Swepub:liu)petdy03
245	1 0	a Quantification of intravoxel velocity standard deviation and turbulence intensity by generalizing phase-contrast MRI
264		c 2006
264	1	b Wiley,c 2006
338		a electronic2 rdacarrier
520		a Turbulent flow, characterized by velocity fluctuations, is a contributing factor to the pathogenesis of several cardiovascular diseases. A clinical noninvasive tool for assessing turbulence is lacking, however. It is well known that the occurrence of multiple spin velocities within a voxel during the influence of a magnetic gradient moment causes signal loss in phase-contrast magnetic resonance imaging (PC-MRI). In this paper a mathematical derivation of an expression for computing the standard deviation (SD) of the blood flow velocity distribution within a voxel is presented. The SD is obtained from the magnitude of PC-MRI signals acquired with different first gradient moments. By exploiting the relation between the SD and turbulence intensity (TI), this method allows for quantitative studies of turbulence. For validation, the TI in an in vitro flow phantom was quantified, and the results compared favorably with previously published laser Doppler anemometry (LDA) results. This method has the potential to become an important tool for the noninvasive assessment of turbulence in the arterial tree.
650	7	a MEDICIN OCH HÄLSOVETENSKAPx Medicinska och farmaceutiska grundvetenskaperx Fysiologi0 (SwePub)301062 hsv//swe
650	7	a MEDICAL AND HEALTH SCIENCESx Basic Medicinex Physiology0 (SwePub)301062 hsv//eng
650	7	a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Strömningsmekanik och akustik0 (SwePub)203062 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Fluid Mechanics and Acoustics0 (SwePub)203062 hsv//eng
650	7	a TEKNIK OCH TEKNOLOGIERx Medicinteknikx Medicinsk laboratorie- och mätteknik0 (SwePub)206012 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Medical Engineeringx Medical Laboratory and Measurements Technologies0 (SwePub)206012 hsv//eng
653		a phase-contrast magnetic resonance imaging
653		a turbulent flow
653		a intravoxel velocity distribution
653		a turbulence intensity
653		a atherosclerosis
653		a MEDICINE
653		a MEDICIN
653		a Physiology
653		a Fysiologi
653		a Fluid mechanics
653		a Strömningsmekanik
653		a Medical engineering
653		a Medicinsk teknik
700	1	a Sigfridsson, Andreas,d 1978-u Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Medicinsk informatik,Tekniska högskolan4 aut0 (Swepub:liu)andsi93
700	1	a Escobar Kvitting, John-Peder,d 1976-u Östergötlands Läns Landsting,Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Hälsouniversitetet,Thorax-kärlkliniken4 aut0 (Swepub:liu)johkv95
700	1	a Ebbers, Tino,d 1972-u Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Klinisk fysiologi,Hälsouniversitetet,Mekanisk värmeteori och strömningslära,Tekniska högskolan4 aut0 (Swepub:liu)tineb49
710	2	a Linköpings universitetb Centrum för medicinsk bildvetenskap och visualisering, CMIV4 org
773	0	t Magnetic Resonance in Medicined : Wileyg 56:4, s. 850-858q 56:4<850-858x 0740-3194x 1522-2594
856	4	u https://liu.diva-portal.org/smash/get/diva2:258098/FULLTEXT01.pdfx primaryx Raw objecty fulltext:preprint
856	4	u https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/mrm.21022
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-37249
856	4 8	u https://doi.org/10.1002/mrm.21022

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