文档标签: CT with or without contrast enhancement NuclearScienceTechniques23(2012)305—3re0petectiticlyes:costencemenINGYanHAOJinhuaSONGianhuaCHENiangQIAWenliDepartmentNuclearMedicine,ShanghaiFirstPeopleHospital,ShanghaiJiaoTongUniversity,Shanghai200080,ChinabstractPurposeperformancecontrast—enhancedPEnon—enhancedPE...
not decorated or complicated; simple(牛津高阶) Something that is plain is very simple in style. (柯林斯) 感觉就表示“简单的扫描”之意,从这个层面上可以表示“平扫”。 而且要注意 CT scan 和 x-rays 是不一样的哦~ 如Health Images所述,虽然两种检查都用了同一种技术手段,即电离辐射(ionizing radiat...
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 ...
If you are having an CT or CTA with a contrast injection please be sure drink plenty of water before and after the exam. This will ensure that the injection itself is as painless as possible and that the contrast material is flushed out of your system quickly....
Most imaging modalities do not provide sufficient 3D information or have a too limited field of view to appropriately study the 3D morphology. While microfocus X-ray computed tomography (microCT) could be appropriate, many microcarriers are hydrated before in-vitro use. This wet state makes them...
Conclusions and Relevance In patients undergoing proximal anterior circulation mechanical thrombectomy in the extended time window, there were no significant differences in the clinical outcomes of patients selected with noncontrast CT compared with those selected with CTP or MRI. These findings have the ...
PET imaging obtained after the end-of-treatment (EoT) was classified as showing PET and ce-CT matched response (concordant imaging group, CIG) or PET and ce-CT unmatched response (discordant imaging group, DIG). Relapse rate and Event-Free Survival (EFS) were compared between CIG and DIG ...
After the completion of your imaging exam, either your body absorbs the contrast material, or you eliminate it through your urine. Not every MRI requires using a contrast agent. MRIs with and without contrast are both effective, and your doctor will determine which scan you need based on your...
Of different imaging techniques, computed tomography (CT) scan is described as the method of choice in detecting body couriers, but there is no study to concomitantly compare with- and without-contrast abdominopelvic CTs to determine the more accurate one for this purpose. Objective. We aimed ...
Cardiovascular computed tomography (CT) angiography has become an established alternative to invasive catheter angiography. However, imaging artifacts due to partial volume effects with current systems hinder accurate evaluation of calcified or stented segments. Increased spatial resolution may allow to overco...