Diagnosis of cerebrovascular accidents and intracranial hemorrhage is the most frequent reason for a "head CT" or "CT brain". Scanning is done with or without intravenous contrast agents. CT generally does not exclude infarct in the acute stage of a stroke, but is useful to exclude a bleed ...
at appendectomy,yielding an accuracy of 87.5%,sensitivity of 90.6%,specificity of 75.0%,positive predictive value of 96.7%,and negative predictive value of 67.0%,respectively.Conclusion:CT scan and CTMPVR is useful for surgeons in making correct diagnosis of acute appendicitis without typical symptoms...
European Journal of Radiology Volume 82, Issue 7, July 2013, Pages 1043-1049CT in children – dose protection and general considerations when planning a CT in a child Author links open overlay panelE. Sorantin, S. Weissensteiner, G. Hasenburger, M. Riccabona...
The first manifestation of orbital involvement in patients with paranasal sinusitis is the development of inflammatory edema. Contrast-enhanced study is necessary. The edematous orbital fatty reticulum and adjacent tissues demonstrate some enhancement on postcontrast CT and MR imaging scans (Fig. 10)....
5、 Oral contrast can be tr 12、apped between thick folds simulating sinus tracts. 口服的对比剂可陷于厚的皱襞之间,类似于窦道。 Pseudomembranous colitis with dilatation of the sigmoid.伪膜性结肠炎伴乙状结肠扩张 Here a patient with PMC这是一个伪膜性结肠炎患者。There is ascites and hyper ...
SinusitisComputed tomographyContrast-enhanced magnetic resonance imaging is considered the imaging modality of choice for invasive fungal sinusitis (IFS); however, it is not feasible to perform emergency CEMRI especially in the setting of COVID-19. The CECT protocol for evaluation of suspected IFS ...
The inflammatory respiratory disease may be selected from a group consisting of asthma, chronic obstructive pulmonary disease (COPD), acute lung injury, pyothorax, lung abscess, pneumonia, pulmonary tuberculosis, cough, phlegm, bronchitis, sore throat, tonsillitis, paranasal sinusitis, rhinitis, constr...
pulmonary embolism has a rapid onset and often have apparent symptoms of infection, with the peripheral white blood cells and procalcitonin significantly increased, which help to differentiate. Granulomatous vasculitis has the typical triad of sinusitis, renal function damage and pulmonary necrotizing ...
or abscess), and secondary infectious vasculitis.7Imaging with CT or MR may help to identify these complications. Additionally, imaging may help to identify the cause of meningitis in cases where there is a direct pathway for spread of infection, su...
(FOV), slice thickness or use of iodinated contrast material may influence the interpretation of PET/CT findings. In most institutions, head and neck tumour patients will often undergo a standard PET/CT examination without intravenous contrast material; the area investigated typically extends from the...