Literature DB >> 15064388

User-defined vascular input function curves: influence on mean perfusion parameter values and signal-to-noise ratio.

Susan M Kealey1, Vilert A Loving, David M Delong, James D Eastwood.   

Abstract

The authors reviewed 40 computed tomographic (CT) perfusion studies to determine the effect of arterial and venous input function properties on perfusion parameter values and tissue signal-to-noise ratio (SNR). A 10-subject subset was analyzed to evaluate the effect of varying venous region of interest (ROI) locations. Venous peak enhancement correlated significantly with mean tissue cerebral blood flow (CBF) and cerebral blood volume (CBV); venous and arterial peak enhancement correlated significantly with SNR of perfusion maps. Different ROI locations within the same vein resulted in significantly different CBV and CBF values. Perfusion map parameters are related to peak enhancement within user-selected ROIs. Optimal ROI selection should limit variability and increase quality of CT perfusion images.

Mesh：

Year:  2004        PMID： 15064388     DOI： 10.1148/radiol.2312030489

Source DB:  PubMed          Journal:  Radiology        ISSN： 0033-8419            Impact factor:   11.105


  14 in total

1.  Role of CT perfusion imaging in the diagnosis and treatment of vasospasm.

Authors:  Edward D Greenberg; Y Pierre Gobin; Howard Riina; Carl E Johnson; Apostolos J Tsiouris; Joseph Comunale; Pina C Sanelli
Journal:  Imaging Med       Date:  2011-06-01

2.  Increasing contrast agent concentration improves enhancement in first-pass CT perfusion.

Authors:  H M Silvennoinen; L M Hamberg; L Valanne; G J Hunter
Journal:  AJNR Am J Neuroradiol       Date:  2007-08       Impact factor: 3.825

3.  Influence of partial volume on venous output and arterial input function.

Authors:  I van der Schaaf; E-J Vonken; A Waaijer; B Velthuis; M Quist; T van Osch
Journal:  AJNR Am J Neuroradiol       Date:  2006-01       Impact factor: 3.825

4.  Clinical feasibility of pulmonary perfusion analysis using dynamic computed tomography and a gamma residue function.

Authors:  Yasuhiko Shimatani; Kazuhiko Kodani; Junko Okada; Motoki Ametani; Toshio Kaminou; Toshihide Ogawa
Journal:  Jpn J Radiol       Date:  2013-01-12       Impact factor: 2.374

5.  Can iterative reconstruction improve imaging quality for lower radiation CT perfusion? Initial experience.

Authors:  C J Lin; T H Wu; C H Lin; S C Hung; C F Chiu; M-J Liu; M M H Teng; F C Chang; W Y Guo; C Y Chang
Journal:  AJNR Am J Neuroradiol       Date:  2013-04-11       Impact factor: 3.825

6.  Using quantitative CT perfusion for evaluation of delayed cerebral ischemia following aneurysmal subarachnoid hemorrhage.

Authors:  P C Sanelli; I Ugorec; C E Johnson; J Tan; A Z Segal; M Fink; L A Heier; A J Tsiouris; J P Comunale; M John; P E Stieg; R D Zimmerman; A I Mushlin
Journal:  AJNR Am J Neuroradiol       Date:  2011-09-29       Impact factor: 3.825

7.  Perfusion CT to evaluate the effect of transluminal angioplasty on cerebral perfusion in the treatment of vasospasm after subarachnoid hemorrhage.

Authors:  Charles B L M Majoie; Leonard J van Boven; Diederik van de Beek; Henk W Venema; Willem J van Rooij
Journal:  Neurocrit Care       Date:  2007       Impact factor: 3.210

8.  Reproducibility of quantitative CT brain perfusion measurements in patients with symptomatic unilateral carotid artery stenosis.

Authors:  A Waaijer; I C van der Schaaf; B K Velthuis; M Quist; M J P van Osch; E P A Vonken; M S van Leeuwen; M Prokop
Journal:  AJNR Am J Neuroradiol       Date:  2007-05       Impact factor: 3.825

9.  CT perfusion mapping of hemodynamic disturbances associated to acute spontaneous intracerebral hemorrhage.

Authors:  Enrico Fainardi; Massimo Borrelli; Andrea Saletti; Roberta Schivalocchi; Cristiano Azzini; Michele Cavallo; Stefano Ceruti; Riccardo Tamarozzi; Arturo Chieregato
Journal:  Neuroradiology       Date:  2008-05-27       Impact factor: 2.804

10.  Serial changes in CT cerebral blood volume and flow after 4 hours of middle cerebral occlusion in an animal model of embolic cerebral ischemia.

Authors:  B D Murphy; X Chen; T-Y Lee
Journal:  AJNR Am J Neuroradiol       Date:  2007-04       Impact factor: 3.825
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