Tag: Computed Tomography (CT)

1. Pulmonary magnetic resonance imaging (MRI) with ultrashort echo time (UTE) is a noninvasive method of evaluation of the lung parenchyma, providing regional morphologic and functional assessments of various pulmonary diseases in a manner comparable to conventional computed tomography (CT) without radiation exposure. 2. MRI with UTE provides substantially improved...
1. In a prospective cohort study of 91 patients with anterior circulation ischemic strokes that underwent magnetic resonance imaging (MRI), time of stroke onset was not significantly associated with size of core infarct volume on MRI. 2. The presence of collateral circulation was significantly associated with decreased infarct volume. Evidence Rating...
1. In patients with mild-to-moderate chronic obstructive pulmonary disease (COPD), pulmonary MRI and CT imaging identified disease phenotypes, exercise limitations and predicted symptomology, particularly in patients with minimal FEV1 abnormalities. 2. Hyperpolarized 3He MR imaging, lung diffusion capacity and plethysmographic measurements were most predictive of exertional dyspnea symptoms, while FEV1...
1. Timing invariant computed tomography angiography (CTA) derived from computed tomography perfusion can reliably detect large artery occlusions in ischemic stroke, possibly reducing the need for separate CTA in the acute setting. Evidence Rating: 3 (Good) Study Rundown: Current stroke imaging research is aimed at identifying patients with acute ischemic stroke...
1. In patients with nonsolid lung nodules, yearly computed tomography (CT) scans may be used to safely screen for malignant progression regardless of lesion size. 2. Newly identified nonsolid nodules were more likely to resolve or to decrease in size than other nodules, and those that do persist and progress...
1. In a retrospective review of over 2200 patients undergoing contrast-enhanced computed tomography scans, there were no significant differences between the incidence of contrast-induced nephropathy immediately after or 48 hours after contrast administration. 2. The overall incidence of acute kidney injury attributable to contrast administration was less than 1% in...
1. In a prospective cohort study of 25 patients with prosthetic vascular graft infections treated with systemic antibiotics, the use of FDG-PET/CT for monitoring of metabolic activity within the graft was effective at determining infection status and was used to alter the course of antibiotic therapy in all patients. Evidence...
1. Among a cohort of patients with suspected coronary artery disease (CAD), coronary computed tomographic angiography (CCTA) was comparable to invasive coronary angiography in evaluating candidacy for coronary artery bypass graft (CABG) surgery. 2. The combination of CCTA with a CCTA-based CAD grading scale showed significantly higher specificity and positive...
1. Between 2001 and 2010, a 2.5-fold increase in CT utilization has occurred among adult fall patients visiting the emergency department, yet the proportion of these patients with life-threatening injuries has only increased by 2.5% overall. Evidence Rating Level: 3 (Average) Study Rundown: Given the accessibility, speed of scanning, and sensitivity...
1. Among patients with surgically-confirmed functional pituitary microadenomas, dynamic contrast-enhanced multisection computed tomography (DCE-MCT) was associated with improved tumor detection when compared with magnetic resonance (MR) imaging. Evidence Rating: 3 (Average) Study Rundown: Pituitary microadenomas are small tumors, less than 10mm in diameter, that can be difficult to localize without the...