AJR. American journal of roentgenology
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AJR Am J Roentgenol · Sep 2014
Correlation of ultrasound-guided corticosteroid injection of the quadratus femoris with MRI findings of ischiofemoral impingement.
MRI findings of ischiofemoral impingement (IFI) have been described, but there is little evidence for treatment with ultrasound-guided corticosteroid injection. The purpose of this study was to evaluate the effectiveness of ultrasound-guided corticosteroid injection of the quadratus femoris muscle as a treatment of IFI syndrome and to correlate the MRI findings with injection outcome. ⋯ Ultrasound-guided corticosteroid injection of the quadratus femoris muscle shows promise as an effective treatment of IFI syndrome. However, larger longitudinal studies are needed to help establish the role of ultrasound-guided injection in the workup and care of patients presenting with both MRI findings and clinical findings of IFI.
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AJR Am J Roentgenol · Sep 2014
CT of the bronchopulmonary veins in patients with superior vena cava or left brachiocephalic vein obstruction.
The purpose of this study was to show the arrangement and connections of the bronchopulmonary veins (i.e., vessels draining the bronchi, bronchioles, and pleura in patients with chronic superior vena cava (SVC) or left brachiocephalic vein (LBCV) obstruction using CT. ⋯ The arrangement and connections of the bronchopulmonary veins in patients with chronic SVC or LBCV obstruction can be depicted by CT; these vessels form an intricate network connecting the systemic and pulmonary venous circulations and can act as systemic-pulmonary shunts.
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The purposes of this article are to review the indications for and the materials and designs of hardware more commonly used in the lumbar spine; to discuss alternatives for each of the types of hardware; to review normal postoperative imaging findings; to describe the appropriateness of different imaging modalities for postoperative evaluation; and to show examples of hardware complications. ⋯ Stabilization and fusion of the lumbar spine with intervertebral disk replacement, artificial ligaments, spinous process distraction devices, plate-and-rod systems, dynamic posterior fusion devices, and newer types of material incorporation are increasingly more common in contemporary surgical practice. These spinal hardware devices will be seen more often in radiology practice. Successful postoperative radiologic evaluation of this spinal hardware necessitates an understanding of fundamental hardware design, physiologic objectives, normal postoperative imaging appearances, and unique complications. Radiologists may have little training and experience with the new and modified types of hardware used in the lumbar spine.
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AJR Am J Roentgenol · Sep 2014
Comparative Study Controlled Clinical TrialSmall-intestinal length measurement on MR enterography: comparison with in vivo surgical measurement.
The purpose of this study is to assess the feasibility and accuracy of small-bowel length measurement on MR enterography examinations compared with surgical in vivo measurements. ⋯ Small-bowel length measurements on MR enterography are accurate compared with anatomic measurements. MR enterography can provide an effective noninvasive investigation in planning surgical and nutritional intervention in patients with compromised bowel length.