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[PDF] Top 20 Robust Cerebral Blood Flow Map Estimation in Arterial Spin Labeling

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Robust Cerebral Blood Flow Map Estimation in Arterial Spin Labeling

Robust Cerebral Blood Flow Map Estimation in Arterial Spin Labeling

... outliers. In particular, sudden subject motion may not be correctly corrected by registration and cause strong corolla-shaped ...have in the final perfusion map, it is often suggested to ignore the ... Voir le document complet

11

Changes in cerebral blood flow and vasoreactivity to CO(2) measured by Arterial Spin Labeling after 6 days at 4,350 m.

Changes in cerebral blood flow and vasoreactivity to CO(2) measured by Arterial Spin Labeling after 6 days at 4,350 m.

... performed in this area have used transcranial Doppler ultrasound (TCD) measurements to assess middle cerebral arterial blood flow velocity (MCAv), rather than absolute measurements of ... Voir le document complet

36

Robust estimation of the cerebral blood flow in arterial spin labelling

Robust estimation of the cerebral blood flow in arterial spin labelling

... of Arterial Spin Labelling (ASL) techniques in Magnetic Resonance Imaging (MRI) has made feasible a non-invasive measurement of the Cerebral Blood Flow ...data in order to ... Voir le document complet

19

Apathy in depression : an arterial spin labeling study

Apathy in depression : an arterial spin labeling study

... cortical blood flow of 43 depressed patients versus 29 ...CBF in the left superior and right middle frontal gyrus in depressed patients at the resting state was positively correlated with ... Voir le document complet

44

Pre-­-neurosurgical detection of cerebral motor areas by functional MRI: Comparison between Blood Oxygenation Level (BOLD) and functional Arterial Spin Labeling (fASL) techniques

Pre-­-neurosurgical detection of cerebral motor areas by functional MRI: Comparison between Blood Oxygenation Level (BOLD) and functional Arterial Spin Labeling (fASL) techniques

... higher in BOLD (81±26%) compared to pCASL1500 (19±32%, p<0,001) and pCASL1000 (50,5±36%, ...higher in pCASL1500 (94±8%, p=0,001) and pCASL1000 (93,2±6%, p=0,01) compared to BOLD ...higher in BOLD ... Voir le document complet

3

The effect of changing arterial blood pressure and carbon dioxide on cerebral blood flow.

The effect of changing arterial blood pressure and carbon dioxide on cerebral blood flow.

... to map impaired CVR across the whole brain in the form of prolonged arterial mean transit time under physiological conditions 11 , currently the most widely used approach to determine optimal medical ... Voir le document complet

8

Absolute and regional cerebral perfusion assessment feasibility in head-down position with arterial spin-labeling magnetic resonance. A preliminary report on healthy subjects.

Absolute and regional cerebral perfusion assessment feasibility in head-down position with arterial spin-labeling magnetic resonance. A preliminary report on healthy subjects.

... TCD, blood-flow velocity can be continuously monitored in the main supply arteries, usually the middle cerebral artery ...between flow and ...only in the MCA trunk while ... Voir le document complet

15

Quantifying CBF from Arterial Spin Labeling via Diverse-TI: sampling diversity or repetitions ?

Quantifying CBF from Arterial Spin Labeling via Diverse-TI: sampling diversity or repetitions ?

... Abstract: Arterial Spin Labeling (ASL) is a noninvasive perfusion technique which allows the absolute quantification of Cerebral Blood Flow ...magnetic spin ... Voir le document complet

20

Robust perfusion maps in Arterial Spin Labeling by means of M-estimators

Robust perfusion maps in Arterial Spin Labeling by means of M-estimators

... of Cerebral Blood Flow (CBF) is now feasible thanks to the introduction of Arterial Spin Labeling (ASL) Magnetic Resonance Imaging (MRI) ... Voir le document complet

2

STUDY OF THE TEMPERATURE OF CEREBRAL ARTERIAL BLOOD FLOW, FOR THE CHARACTERIZATION OF THE DEGREE OF STENOSIS: APPLICATION TO STROKE

STUDY OF THE TEMPERATURE OF CEREBRAL ARTERIAL BLOOD FLOW, FOR THE CHARACTERIZATION OF THE DEGREE OF STENOSIS: APPLICATION TO STROKE

... tissues in permanent regime was solved by the finite difference method and analytically, to assess the temperature change under the variation of stenosis, hematocrit, thermal conductivity, kinematic viscosity, ... Voir le document complet

17

Arterial Spin Labeling at 3T in semantic dementia: perfusion abnormalities detection and comparison with FDG-PET

Arterial Spin Labeling at 3T in semantic dementia: perfusion abnormalities detection and comparison with FDG-PET

... ASL map to an ASL template. Assuming a Gaussian distribution in each voxel, such a template is defined as the mean and associated standard deviation map estimated from a set of input ...described ... Voir le document complet

10

A contrario detection of focal brain perfusion abnormalities based on an Arterial Spin Labeling template

A contrario detection of focal brain perfusion abnormalities based on an Arterial Spin Labeling template

... CBF in brain tumors are well documented ...abnormalities in tumorous tissues can ease tumor grading [2–4] or discriminating post-radiation necrosis from tumor recurrence ...issues in order to supply ... Voir le document complet

5

Changes in brain perfusion in successive arterial spin labeling MRI scans in neonates with hypoxic-ischemic encephalopathy

Changes in brain perfusion in successive arterial spin labeling MRI scans in neonates with hypoxic-ischemic encephalopathy

... Indeed, in addition to the intrinsically lower SNR and resolution of the ASL sequence, the SNR is much lower in neonates because of the small size of the head and the physiologically low cerebral ... Voir le document complet

32

Construction and evaluation of a quantitative arterial spin labeling brain perfusion template at 3T

Construction and evaluation of a quantitative arterial spin labeling brain perfusion template at 3T

... 4. DISCUSSION AND CONCLUSIONS This study demonstrates how non-rigid registration and par- tial volume correction can be used to improve the quality of a brain perfusion template. We have shown that using prior knowledge ... Voir le document complet

5

Per-subject characterization of bolus width in pulsed arterial spin labeling using bolus turbo sampling.

Per-subject characterization of bolus width in pulsed arterial spin labeling using bolus turbo sampling.

... natural bolus duration, defines the temporal width of the bolus. However, if the saturation is applied too late, the actual temporal width of the bolus is shorter than TI 1 , leading to errors in the ... Voir le document complet

20

Patient-specific detection of perfusion abnormalities combining within-subject and between-subject variances in Arterial Spin Labeling

Patient-specific detection of perfusion abnormalities combining within-subject and between-subject variances in Arterial Spin Labeling

... verified in ASL ...subjects. In fMRI data, small devi- ations from homoscedasticity have shown to not overly alter the results in one-sample mixed-effects GLM anal- ysis (Mumford and Nichols, ...tial ... Voir le document complet

13

A comprehensive framework for the detection of individual brain perfusion abnormalities using Arterial Spin Labeling

A comprehensive framework for the detection of individual brain perfusion abnormalities using Arterial Spin Labeling

... (NFA) map is then computed by NFA v = V T min(π i v ) where V is the total number of ...mean. In this paper we worked with the following set of p-values P = ... Voir le document complet

9

Artificial arterial blood pressure artifact models and an evaluation of a robust blood pressure and heart rate estimator

Artificial arterial blood pressure artifact models and an evaluation of a robust blood pressure and heart rate estimator

... (but in practice is limited to a large value) and forces the KF to reduce K k and hence trust the previous measure- ments more than the current ...formed in the same manner as for the ECG signal quality ... Voir le document complet

16

Étude de faisabilité : description de l&#039;évolution du débit sanguin cérébral dans les séquences I.R.M en Arterial Spin Labeling (A.S.L) après un arrêt cardiaque

Étude de faisabilité : description de l'évolution du débit sanguin cérébral dans les séquences I.R.M en Arterial Spin Labeling (A.S.L) après un arrêt cardiaque

... de spin artériel (Arterial Spin Labeling ASL) semble être fiable dans le cadre des encéphalopathies secondaires aux hypoxies néonatales ... Voir le document complet

49

Mesure de la perfusion cérébrale par Arterial Spin Labeling après un infarctus cérébral et impact sur le pronostic fonctionnel, cognitif et moteur à trois mois

Mesure de la perfusion cérébrale par Arterial Spin Labeling après un infarctus cérébral et impact sur le pronostic fonctionnel, cognitif et moteur à trois mois

... Les changements pathophysiologiques au cours d’un infarctus cérébral peuvent se diviser en trois étapes (5) : la première lorsqu’il existe une altération du flux sanguin cérébral (ou CBF : Cerebral Blood ... Voir le document complet

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