AJR. American journal of roentgenology
-
AJR Am J Roentgenol · Feb 2009
ReviewCT diagnosis of acute mesenteric ischemia from various causes.
Acute mesenteric ischemia can be caused by various conditions such as arterial occlusion, venous occlusion, strangulating obstruction, and hypoperfusion associated with nonocclusive vascular disease, and the CT findings vary widely depending on the cause and underlying pathophysiology. The aim of this article is to review the CT appearances of acute mesenteric ischemia in various conditions. ⋯ Recognition of characteristic CT appearances and the variations associated with each cause may help in the accurate interpretation of CT in the diagnosis of mesenteric ischemia.
-
AJR Am J Roentgenol · Feb 2009
Sonography of patients with hemiplegic shoulder pain after stroke: correlation with motor recovery stage.
This study was performed to clarify the cause of shoulder pain using sonography and to evaluate the relationship between the sonographic findings and the motor recovery stages in stroke patients with hemiplegic shoulder pain. ⋯ The cause of shoulder pain was variable and there was no correlation between the stages of motor recovery and the grades of sonographic findings in patients with hemiplegic shoulder pain.
-
AJR Am J Roentgenol · Feb 2009
Comparative StudyComparison of indirect isotropic MR arthrography and conventional MR arthrography of labral lesions and rotator cuff tears: a prospective study.
The purpose of our study was to prospectively compare the diagnostic accuracy of 3D isotropic indirect MR arthrography with conventional sequences of indirect MR arthrography for the diagnosis of labral and rotator cuff lesions on a 3-T MR unit. ⋯ Three-dimensional isotropic MR arthrography sequences with multiplanar reconstruction can provide a similar capability for the diagnosis of labral and rotator cuff lesions as conventional MR arthrography sequences but in a shorter imaging time.
-
AJR Am J Roentgenol · Feb 2009
Carotid artery abnormalities and leukoaraiosis in elderly patients: evaluation with MDCT.
Several studies have shown that leukoaraiosis is a clinically relevant condition. Patients with leukoaraiosis have a negative prognosis in terms of death, stroke, and myocardial infarction. The aim of this study was to evaluate whether the presence and severity of leukoaraiosis correlate with degree of carotid stenosis and the presence of specific types of plaque (fatty, mixed, calcified) in a group of elderly patients with clinical indications for MDCT. ⋯ The results of this study showed a statistically significant correlation between the presence and severity of leukoaraiosis and degree of carotid stenosis. A trend toward increased risk of development of leukoaraiosis in carotids with fatty plaques also was observed. The data confirmed that the development of leukoaraiosis is strongly correlated with age.
-
AJR Am J Roentgenol · Feb 2009
Preparing first-year radiology residents and assessing their readiness for on-call responsibilities: results over 5 years.
The objective of our study was to evaluate the preparedness of postgraduate year (PGY)-2 residents for independent call responsibilities and the impact of the radiology residency training program on call preparedness using an objective DICOM-based simulation module over a 5-year period. ⋯ Over a 5-year period, first-year radiology residents scored significantly lower than upper-level colleagues on an emergency radiology simulation module, suggesting a significant improvement in the ability of residents to interpret typical on-call imaging studies after the PGY-2 year.