AJR. American journal of roentgenology
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AJR Am J Roentgenol · Jan 2007
Comparative StudyCombined use of diffusion-weighted MRI and 1H MR spectroscopy to increase accuracy in prostate cancer detection.
The objective of our study was to establish the sensitivity and specificity for prostate cancer detection using a combined 1H MR spectroscopy and diffusion-weighted MRI approach. ⋯ When voxels containing > or = 70% tumor are considered positive, the combined use of MR spectroscopy and diffusion-weighted MRI increases the specificity for prostate cancer detection while retaining the sensitivity compared with MR spectroscopy alone or diffusion-weighted MRI alone.
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AJR Am J Roentgenol · Jan 2007
High-resolution MRI in evaluation of the surgical anatomy of the esophagus and posterior mediastinum.
The purpose of this study was to use high-resolution MRI to evaluate the surgical anatomy of the posterior mediastinum, in particular the esophagus and its relation to the surrounding structures. The aim was to familiarize radiologists with the appearance of structures considered important in planning surgical resection of the esophagus. ⋯ High-resolution MRI of the posterior mediastinum provides detailed anatomic information, delineating structures not visible on other forms of cross-sectional imaging. It can provide important information for planning surgical intervention.
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We describe the sonographic findings of nasal fracture in children, and we evaluate the diagnostic value of sonography as compared with conventional radiography and clinical findings to determine whether sonography can be a primary technique for evaluating nasal fracture in children. ⋯ Sonography can be a primary diagnostic technique for evaluating nasal fracture in children. It inflicts no radiation, provides various imaging planes without positional change, and can be used to evaluate the cartilaginous septum. Potential pitfalls are the nasofrontal suture, the junction between the nasal bone and the pyriform aperture of the maxilla, the vascular groove, and the presence of an old fracture. CT can be used in addition to sonography in cases of suspected complex facial bone trauma.
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AJR Am J Roentgenol · Jan 2007
Controlled Clinical TrialAccuracy of transthoracic sonography in detection of pneumothorax after sonographically guided lung biopsy: prospective comparison with chest radiography.
The purpose of this study was to prospectively evaluate the accuracy of transthoracic sonography in the detection of pneumothorax after transthoracic sonographically guided lung biopsy. ⋯ These preliminary results suggest that transthoracic sonography is as effective as chest radiography in the detection of pneumothorax after transthoracic sonographically guided lung biopsy and may become the method of choice for excluding, diagnosing, and monitoring pneumothorax after transthoracic sonographically guided biopsy. Chest radiography may be needed only for assessment of the extent of pulmonary collapse after transthoracic sonographic diagnosis of pneumothorax or in the presence of discrepancy between transthoracic sonographic findings and clinical presentation.