Biometric analysis of the foetal meconium pattern using T1 weighted 2D gradient echo MRI
نویسندگان
چکیده
منابع مشابه
comparison of maximum signal intensity of magnevist contrast agent in modified t1 weighted spin echo, t1 weighted fast spin echo and t1 weighted gradient echo sequences
background: nowadays mri examinations have been widely used in clinical applications for many diagnoses. the use of contrast agent in mri improves lesion detection and characterization and causes more accurate diagnosis. objectives: the aim of this study was comparing to optimal dose of magnevist contrast agent in modified t1w se (spin echo), t1w fse (fast spin echo) and t1w gre (gradient ech...
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was referred to the neurology department for comatose state with brainstem dysfunction. Non-contrast brain CT showed diffuse cerebral edema with subarachnoid hemorrhage (SAH)-like appearance (Fig. 1A). A lumbar puncture was not carried out because of the brain edema which was revealed in CT examination. T2*-weighted gradient-echo MRi revealed enlarged subarachnoid vessels that were not consiste...
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In bolus-tracking MRI, a bolus of paramagnetic tracer is injected intravenously, and the signal changes induced by the tracer are measured in an organ-of-interest using a fast dynamic imaging sequence [1]. The objective is to measure hemodynamic properties of body tissue. For this purpose, two signal-time curves must be measured: one inside the feeding artery (the arterial input function AIF), ...
متن کاملComparison of contrast-enhanced T1-weighted FLAIR with BLADE, and spin-echo T1-weighted sequences in intracranial MRI.
PURPOSE We compared periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER, BLADE) MR technique with spin echo (SE) technique for evaluation of artifacts, and detection and delineation of brain lesions. MATERIALS AND METHODS Contrast-enhanced T1-weighted fluid attenuated inversion recovery (FLAIR) images with BLADE technique (CE T1W-FLAIR BLADE) and contrast-e...
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BACKGROUND AND PURPOSE Echo-planar gradient-echo T2*-weighted MR imaging (GRE-EPI) may detect hypointense lesions representing microhemorrhages with high sensitivity. The aim of this study was to evaluate the effectiveness of GRE-EPI for detecting old lacunar hemorrhages in hypertensive patients with stroke. METHODS GRE-EPI was performed with a 1.5-T MRI system in 198 hypertensive patients wi...
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ژورنال
عنوان ژورنال: BJR|Open
سال: 2020
ISSN: 2513-9878
DOI: 10.1259/bjro.20200032