AJR. American journal of roentgenology
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AJR Am J Roentgenol · Feb 2007
Multistation whole-body high-spatial-resolution MR angiography using a 32-channel MR system.
The objective of our study was to investigate a multistation whole-body MR angiography (MRA) protocol using a 32-channel MR system with multicoil technology in a population of patients with suspected peripheral vascular disease (PVD). ⋯ Using a multichannel radiofrequency system with multicoil technology, the whole-body CE-MRA approach outlined in this article is able to provide high-spatial-resolution data sets with high diagnostic image quality for evaluation of arterial occlusive disease in most vascular territories.
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AJR Am J Roentgenol · Feb 2007
Pulmonary nodule volumetric measurement variability as a function of CT slice thickness and nodule morphology.
The purpose of our study was to assess differences in volumetric measurements of pulmonary nodules obtained using different CT slice thicknesses; correlate these differences with nodule size, shape, and margination; and compare measurements generated by two different software packages. ⋯ CT slice thickness variation resulted in significant differences in volume measurements for tiny nodules. A spiculated margin was shown to have a significant effect on nodule volume variability within a single size group. Use of different software packages resulted in significant volume measurement differences at the 2.5-mm CT slice thickness.
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AJR Am J Roentgenol · Feb 2007
Clinical TrialCT-guided iliosacral screw placement: technique and clinical experience.
The purpose of this study was to describe the technique of and experience in using CT guidance for percutaneous iliosacral screw placement in patients with unstable pelvic fractures. ⋯ CT-guided iliosacral screw placement is a safe and accurate procedure that can be performed by radiologists in a radiology suite.
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AJR Am J Roentgenol · Feb 2007
Determination of optimal timing window for pulmonary artery MDCT angiography.
The purpose of our study was to determine the optimal timing window for pulmonary artery MDCT angiography. ⋯ With our study protocol of a 30-second injection and 10-second saline flush, the optimal temporal window to achieve pulmonary artery enhancement greater than 200 H was from 16 seconds to 41 seconds after the start of the injection.
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AJR Am J Roentgenol · Feb 2007
The utility of sonography for the triage of blunt abdominal trauma patients to exploratory laparotomy.
The purpose of this study was to assess the utility of focused abdominal sonography for trauma (FAST) in the triage of hypotensive and normotensive blunt abdominal trauma patients to exploratory laparotomy. ⋯ Hypotensive patients screened in the emergency department with positive FAST findings may be triaged directly to therapeutic laparotomy, depending on the results of the sonography examination, without the need for CT.