AJR. American journal of roentgenology
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AJR Am J Roentgenol · Sep 2015
Acute Middle East Respiratory Syndrome Coronavirus: Temporal Lung Changes Observed on the Chest Radiographs of 55 Patients.
The objective of our study was to describe lung changes on serial chest radiographs from patients infected with the acute Middle East respiratory syndrome corona-virus (MERS-CoV) and to compare the chest radiographic findings and final outcomes with those of health care workers (HCWs) infected with the same virus. Chest radiographic scores and comorbidities were also examined as indicators of a fatal outcome to determine their potential prognostic value. ⋯ Ground-glass opacity in a peripheral location was the most common abnormality noted on chest radiographs. A higher chest radiographic score coupled with a high number of medical comorbidities was associated with a poor prognosis and higher mortality in those infected with MERS-CoV. Younger HCWs with few or no comorbidities had a higher survival rate.
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AJR Am J Roentgenol · Sep 2015
Acute Appendicitis: Use of Clinical and CT Findings for Modeling Hospital Resource Utilization.
The purpose of this study was to retrospectively investigate associations between baseline CT findings in suspected acute appendicitis and subsequent hospital resource utilization. ⋯ Admission CT findings serve as independent predictors of hospital resource utilization in suspected acute appendicitis.
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AJR Am J Roentgenol · Sep 2015
Randomized Controlled Trial Comparative StudyComparison of Low-Dose Higher-Relaxivity and Standard-Dose Lower-Relaxivity Contrast Media for Delayed-Enhancement MRI: A Blinded Randomized Crossover Study.
The gadolinium-based MRI contrast agent gadobenate dimeglumine has nearly twice the MR relaxivity of gadopentetate dimeglumine at 1.5 T. The purpose of this study was to determine whether a lower dose (0.1 mmol/kg) of gadobenate dimeglumine can be used to obtain delayed-enhancement MR images comparable to those obtained with a standard dose (0.2 mmol/kg) of gadopentetate dimeglumine. ⋯ Qualitatively and quantitatively, delayed-enhancement MR images of ischemic myocardium obtained with 0.1 mmol/kg gadobenate dimeglumine are comparable to those obtained with 0.2 mmol/kg gadopentetate dimeglumine 5, 10, and 20 minutes after contrast administration.
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AJR Am J Roentgenol · Sep 2015
Relationship Between Emphysema Severity and the Location of Lung Cancer in Patients With Chronic Obstructive Lung Disease.
New phenotypes of chronic obstructive pulmonary disease (COPD) based on emphysema severity have been recognized recently. The purpose of this study was to determine the relationship between emphysema severity (phenotype) and lung cancer location in patients with COPD. ⋯ Lower emphysema grades and reduced FEV1/FVC seemed to be independent predictors of central location of lung cancer in COPD. Therefore, in patients with COPD with lower grade emphysema and airway-predominant disease, additional screening tools may have to be considered for central lung cancer detection along with thin-section CT.
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AJR Am J Roentgenol · Aug 2015
ReviewUse of Imaging in the Management of Metastatic Spine Disease With Percutaneous Ablation and Vertebral Augmentation.
The purpose of this article is to describe the role of imaging in the management of metastatic spine disease with percutaneous ablation and vertebral augmentation. Topics include the imaging diagnosis of spinal metastases, imaging factors related to patient selection and procedural planning, intraprocedural imaging guidance, and posttreatment imaging assessment. ⋯ Radiologists should be familiar with pertinent imaging findings related to the percutaneous management of metastatic spine disease.