Absolute quantification of cerebral blood flow in neurologically normal volunteers: Dynamic-susceptibility contrast MRI-perfusion compared with computed tomography (CT)-perfusion
(2009) In Magnetic Resonance in Medicine 62(1). p.56-65- Abstract
- To improve the reproducibility of arterial input function (AIF) registration and absolute cerebral blood flow (CBF) quantification in dynamic-susceptibility MRI-perfusion (MRP) at 1.5T, we rescaled the AIF by use of a venous output function (VOF). We compared CBF estimates of 20 healthy, elderly volunteers, obtained by computed tomography (CT)-perfusion (CTP) and MRP on two consecutive days. MRP, calculated without the AIF correction, did not result in any significant correlation with CTP. The rescaled MRP showed fair to moderate correlation with CTP for the central gray matter (GM) and the whole brain. Our results indicate that the method used for correction of partial volume effects (PVEs) improves MRP experiments by reducing... (More)
- To improve the reproducibility of arterial input function (AIF) registration and absolute cerebral blood flow (CBF) quantification in dynamic-susceptibility MRI-perfusion (MRP) at 1.5T, we rescaled the AIF by use of a venous output function (VOF). We compared CBF estimates of 20 healthy, elderly volunteers, obtained by computed tomography (CT)-perfusion (CTP) and MRP on two consecutive days. MRP, calculated without the AIF correction, did not result in any significant correlation with CTP. The rescaled MRP showed fair to moderate correlation with CTP for the central gray matter (GM) and the whole brain. Our results indicate that the method used for correction of partial volume effects (PVEs) improves MRP experiments by reducing AIF-introduced variance at 1.5T. Magn Reson Med, 2009. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1397613
- author
- Doerthe, Ziegelitz ; Göran, Starck ; Irene, Mikkelsen ; Mats, Tullberg ; Mikael, Edsbagge ; Carsten, Wikkelsö ; Eva, Forsell-Aronsson ; Holtås, Stig LU and Knutsson, Linda LU
- organization
- publishing date
- 2009
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Magnetic Resonance in Medicine
- volume
- 62
- issue
- 1
- pages
- 56 - 65
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000267404300007
- scopus:67650033400
- ISSN
- 1522-2594
- DOI
- 10.1002/mrm.21975
- project
- Optimisation and Validation of Dynamic Susceptibility Contrast MRI
- language
- English
- LU publication?
- yes
- id
- 686ebb13-4abe-4e63-9ca3-52f623d68783 (old id 1397613)
- date added to LUP
- 2016-04-01 12:22:32
- date last changed
- 2022-01-27 02:54:12
@article{686ebb13-4abe-4e63-9ca3-52f623d68783, abstract = {{To improve the reproducibility of arterial input function (AIF) registration and absolute cerebral blood flow (CBF) quantification in dynamic-susceptibility MRI-perfusion (MRP) at 1.5T, we rescaled the AIF by use of a venous output function (VOF). We compared CBF estimates of 20 healthy, elderly volunteers, obtained by computed tomography (CT)-perfusion (CTP) and MRP on two consecutive days. MRP, calculated without the AIF correction, did not result in any significant correlation with CTP. The rescaled MRP showed fair to moderate correlation with CTP for the central gray matter (GM) and the whole brain. Our results indicate that the method used for correction of partial volume effects (PVEs) improves MRP experiments by reducing AIF-introduced variance at 1.5T. Magn Reson Med, 2009.}}, author = {{Doerthe, Ziegelitz and Göran, Starck and Irene, Mikkelsen and Mats, Tullberg and Mikael, Edsbagge and Carsten, Wikkelsö and Eva, Forsell-Aronsson and Holtås, Stig and Knutsson, Linda}}, issn = {{1522-2594}}, language = {{eng}}, number = {{1}}, pages = {{56--65}}, publisher = {{John Wiley & Sons Inc.}}, series = {{Magnetic Resonance in Medicine}}, title = {{Absolute quantification of cerebral blood flow in neurologically normal volunteers: Dynamic-susceptibility contrast MRI-perfusion compared with computed tomography (CT)-perfusion}}, url = {{http://dx.doi.org/10.1002/mrm.21975}}, doi = {{10.1002/mrm.21975}}, volume = {{62}}, year = {{2009}}, }