Comparison of CT and MRI, with and without Contrast Enhancement, in the Detection of Brain TumorsMagnetic resonance imaging (MRI) as a clinical investigation became available in the early 1980s. Since then this method has proven to be a valuable additional diagnostic tool in the recognition and ...
Orally: Drinking a liquid with the contrast material can enhance scans of your digestive tract, the pathway of food through your body. Enema: If your intestines are being scanned, the contrast material can be put into your rectum. After the CT scan, you’ll need todrink plenty of fluidsto...
Butler AR, Passalaqua AM, Berenstein A, Kricheff II (1978) The contrast-enhanced CT scan and the radionuclide brain scan: Parallel mechanismus of action in the detection of supratentorial astrocytomas. Neuroradiology 16:491–494 PubMed CAS Google Scholar Chan RC, Thompson GB, Durity FA (198...
Results Systematic differences were observed for reconstructions with and without point-spread-function modelling (PSF ON and PSF OFF , respectively). Normalising to image-derived activity, upper and lower limits ensuring image comparability were as follows: for PSF ON , RC GMe = [0.97–1.01] and...
Most patients who have computed tomography because of a suspected brain tumor are subjected to a noncontrast scan followed by a contrast study. Analysis of the scans of all such patients over a two-year period indicates that in most cases a single contrast scan affords the same degree of diag...
Whole head iodine-based contrast-enhanced computed tomography (whiceCT) In a second approach, we developed an iodine-diffusion technique to visualize the brain parenchyma with minimal shrinkage and without removing the facial skeleton. We explored the optimization of different parameters to facilitate the...
Delineation of various target volumes using contrast-enhanced magnetic resonance imaging (MRI) and/or computed tomography (CT) constitutes the primary step for radiation therapy planning (RTP) in brain tumors. This study presents a quantification and comparative evaluation of the various clinical target...
with ICH in the non-contrast brain CT scan (NCCT) at presentation, age above eighteen years, and available brain CTA obtained within 48 h from primary NCCT. The exclusion criteria were history of head trauma within the previous two weeks, evidence of ischemic stroke on the site of hemorrhage...
We investigated the use of micro-CT with contrast agent for the non-invasive characterisation of fixed mouse brain tissue specimens as a means to differentiate between grey and white matter. Nine mice were divided into two groups for micro-CT (n=6) and myelin staining (n=3) experiments. Six...
In contrast, ctDNA-positive patients who were treated with ACT had a significantly improved RFS than ctDNA-positive patients without ACT (p < 0.05). Similar results were observed when analyzed in AD and SqCC datasets separately (Supplementary Fig. 8). Therefore, postsurgical ctDNA status ...