[HTML][HTML] Comparison of maximum signal intensity of contrast agent on t1-weighted images using spin echo, fast spin echo and inversion recovery sequences
M Nazarpoor, M Poureisa… - Iranian Journal of …, 2013 - ncbi.nlm.nih.gov
Background MRI is not able to directly measure the concentration of contrast agent. It is
measured indirectly from the signal intensity (SI). It is very important to know how much …
measured indirectly from the signal intensity (SI). It is very important to know how much …
Influence of different measurement methods of arterial input function on quantitative dynamic contrast‐enhanced MRI parameters in head and neck cancer
Background Head and neck cancer (HNC) is the sixth most prevalent cancer worldwide.
Dynamic contrast‐enhanced MRI (DCE‐MRI) helps in diagnosis and prognosis. Quantitative …
Dynamic contrast‐enhanced MRI (DCE‐MRI) helps in diagnosis and prognosis. Quantitative …
Voxelwise comparison of perfusion parameters estimated using dynamic contrast enhanced (DCE) computed tomography and DCE-magnetic resonance imaging in …
Purpose. Dynamic contrast enhanced (DCE) imaging has gained interest as an imaging
modality for assessment of tumor characteristics and response to cancer treatment …
modality for assessment of tumor characteristics and response to cancer treatment …
[HTML][HTML] The effect of inversion time on the relationship between iron oxide nanoparticles concentration and signal intensity in T1-weighted MR images
H Saharkhiz, N Gharehaghaji… - Iranian Journal of …, 2014 - ncbi.nlm.nih.gov
Background: Magnetic nanoparticles have been widely applied in recent years for
biomedical applications. Signal intensity (SI) of magnetic resonance (MR) images depends …
biomedical applications. Signal intensity (SI) of magnetic resonance (MR) images depends …
The arterial input function: Spatial dependence within the imaging volume and its influence on 3D quantitative dynamic contrast-enhanced MRI for head and neck …
J Roberts, SE Kim, EG Kholmovski, Y Hitchcock… - Magnetic Resonance …, 2023 - Elsevier
Purpose To evaluate the dependence of the arterial input function (AIF) on the imaging z-
axis and its effect on 3D DCE MRI pharmacokinetic parameters as mediated by the SPGR …
axis and its effect on 3D DCE MRI pharmacokinetic parameters as mediated by the SPGR …
[HTML][HTML] Evaluation of maximum and minimum signal intensity and the linear relationship between concentration and signal intensity in saturation recovery T1 …
M Nazarpoor - Journal of Biomedical Physics & Engineering, 2020 - ncbi.nlm.nih.gov
Objective: In this article, the effect of saturation times (TSs) on the maximum and minimum
SI, and also the linear relationship between the concentration of the contrast agent and SI …
SI, and also the linear relationship between the concentration of the contrast agent and SI …
[HTML][HTML] The Direction of Flow and Phase-encoding Schemes Effects on Signal Intensity in T1-weighted Inversion Recovery TurboFLASH Images
M Nazarpoor - Journal of Biomedical Physics & Engineering, 2023 - ncbi.nlm.nih.gov
Background: It is needed to minimize the effect of flow direction on the desired area, such as
arterial input function (AIF) in magnetic resonance imaging (MRI). Objective: The current …
arterial input function (AIF) in magnetic resonance imaging (MRI). Objective: The current …
[HTML][HTML] The effect of inversion times on the minimum signal intensity of the contrast agent concentration using inversion recovery t1-weighted fast imaging sequence
M Nazarpoor - Medical journal of the Islamic Republic of Iran, 2014 - ncbi.nlm.nih.gov
Background: Inversion recovery (IR) pulse sequences can generate T1-weighted images
with a different range of inversion time (TI) to suppress or null the signal intensity (SI) for a …
with a different range of inversion time (TI) to suppress or null the signal intensity (SI) for a …
[HTML][HTML] Effect of iron oxide nanoparticles coating type on the relationship between nanoparticles concentration and signal intensity in inversion recovery T1-weighted …
N Gharehaghaji, M Nazarpoor… - Medical Journal of the …, 2015 - ncbi.nlm.nih.gov
Background: Ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles are used as
blood pool contrast agent for magnetic resonance angiography and perfusion imaging. Our …
blood pool contrast agent for magnetic resonance angiography and perfusion imaging. Our …
Effect of Inversion Time on the Linear Correlation between Polyethylene Glycol Coated Iron Oxide Nanoparticles Concentration and Signal Intensity in Inversion …
M Nazarpoor, N Gharehaghaji… - Journal of Mazandaran …, 2015 - jmums.mazums.ac.ir
Background and purpose: In MRI the concentration of contrast agent is indirectly measured
from signal intensity (SI). It is important to find the maximum linear relationship between SI …
from signal intensity (SI). It is important to find the maximum linear relationship between SI …